On Sun, Feb 5, 2012 at 7:13 AM, Richard Sandiford <rdsandif...@googlemail.com> wrote: > I've committed this patch to describe the MIPS changes in GCC 4.7. > Corrections, comments, and help with wordsmithing are all welcome. > > Thanks, > Richard > > > Index: htdocs/gcc-4.7/changes.html > =================================================================== > RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.7/changes.html,v > retrieving revision 1.74 > diff -u -p -r1.74 changes.html > --- htdocs/gcc-4.7/changes.html 16 Jan 2012 08:39:01 -0000 1.74 > +++ htdocs/gcc-4.7/changes.html 5 Feb 2012 15:10:10 -0000 > @@ -51,6 +51,9 @@ > <li>Support has been removed for the NetWare x86 configuration > obsoleted in GCC 4.6.</li> > > + <li>It is no longer possible to use the <code>"l"</code> > + constraint in MIPS16 asm statements.</li> > + > <li>More information on porting to GCC 4.7 from previous versions > of GCC can be found in > the <a href="http://gcc.gnu.org/gcc-4.7/porting_to.html";>porting > @@ -571,9 +574,29 @@ well.</p></li> > <li>...</li> > </ul> > > -<!-- > <h3 id="mips">MIPS</h3> > ---> > + <ul> > + <li>GCC now supports thread-local storage (TLS) for MIPS16. > + This support requires GNU binutils 2.22 or later.</li> > + > + <li>GCC can now generate code specifically for the Cavium Octeon+ > + and Octeon2 processors. The associated command-line options are > + <code>-march=octeon+</code> and <code>-march=octeon2</code> > + respectively. Both options require GNU binutils 2.22 or later.</li>
This part looks good from my point of view. Thanks, Anrew Pinski > + > + <li>GCC can now work around certain 24k errata, under the control > + of the command-line option <code>-mfix-24k</code>. > + These workarounds require GNU binutils 2.20 or later.</li> > + > + <li>32-bit MIPS GNU/Linux targets such as <code>mips-linux-gnu</code> > + can now build n32 and n64 multilibs. The result is effectively > + a 64-bit GNU/Linux toolchain that generates 32-bit code by default. > + Use the configure-time option <code>--enable-targets=all</code> > + to select these extra multilibs.</li> > + > + <li>Passing <code>-fno-delayed-branch</code> now also stops the > + assembler from automatically filling delay slots.</li> > + </ul> > > <!-- > <h3 id="picochip">picochip</h3>
