[Bug target/57954] AVX missing vxorps (zeroing) before vcvtsi2s %edx, slow down AVX code

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57954

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |x86
             Status|UNCONFIRMED                 |RESOLVED
                URL|                            |http://gcc.gnu.org/ml/gcc-p
                   |                            |atches/2013-07/msg01368.htm
                   |                            |l
         Resolution|---                         |FIXED
   Target Milestone|---                         |4.9.0

--- Comment #6 from Uroš Bizjak <ubizjak at gmail dot com> ---
Author: uros
Date: Mon Jul 29 11:17:51 2013
New Revision: 201308

URL: http://gcc.gnu.org/viewcvs?rev=201308&root=gcc&view=rev
Log:
2013-07-29  Uros Bizjak  <ubizjak@gmail.com>

    * config/i386/i386.md (float post-reload splitters): Do not check
    for subregs of SSE registers.

2013-07-29  Uros Bizjak  <ubizjak@gmail.com>
        H.J. Lu  <hongjiu.lu@intel.com>

    PR target/57954
    PR target/57988
    * config/i386/i386.md (post-reload splitter
    to avoid partial SSE reg dependency stalls): New pattern.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.md