[Bug target/48774] [4.6/4.7 Regression] gcc-4.6.0 optimization regression on x86_64-unknown-linux-gnu

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48774

--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-05-04 09:21:15 UTC ---
Author: jakub
Date: Wed May  4 09:21:09 2011
New Revision: 173359

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=173359
Log:
    Backported from mainline
    2011-05-03  Uros Bizjak  <ubizjak@gmail.com>
            Jakub Jelinek  <jakub@redhat.com>

    PR target/48774
    * config/i386/i386.c (ix86_match_ccmode): For CC{A,C,O,S}mode
    only succeed if req_mode is the same as set_mode.

    * gcc.dg/pr48774.c: New test.

Added:
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/pr48774.c
Modified:
    branches/gcc-4_4-branch/gcc/ChangeLog
    branches/gcc-4_4-branch/gcc/config/i386/i386.c
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog