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[Bug target/48774] [4.6/4.7 Regression] gcc-4.6.0 optimization regression on x86_64-unknown-linux-gnu
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 3 May 2011 13:26:11 +0000
- Subject: [Bug target/48774] [4.6/4.7 Regression] gcc-4.6.0 optimization regression on x86_64-unknown-linux-gnu
- Auto-submitted: auto-generated
- References: <bug-48774-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48774
--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-05-03 13:06:14 UTC ---
Author: jakub
Date: Tue May 3 13:06:06 2011
New Revision: 173302
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=173302
Log:
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_6-branch/gcc/testsuite/gcc.dg/pr48774.c
Modified:
branches/gcc-4_6-branch/gcc/ChangeLog
branches/gcc-4_6-branch/gcc/config/i386/i386.c
branches/gcc-4_6-branch/gcc/testsuite/ChangeLog