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[Bug middle-end/43671] [4.4/4.5/4.6 Regression] -fsched2-use-superblocks -m32 produces wrong code with vectorization
- From: "hjl at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 4 May 2010 15:51:23 -0000
- Subject: [Bug middle-end/43671] [4.4/4.5/4.6 Regression] -fsched2-use-superblocks -m32 produces wrong code with vectorization
- References: <bug-43671-14164@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #11 from hjl at gcc dot gnu dot org 2010-05-04 15:51 -------
Subject: Bug 43671
Author: hjl
Date: Tue May 4 15:50:53 2010
New Revision: 159035
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=159035
Log:
Handle the same VALUE for true dependence.
gcc/
2010-05-04 H.J. Lu <hongjiu.lu@intel.com>
Backport from mainline
2010-05-04 H.J. Lu <hongjiu.lu@intel.com>
PR middle-end/43671
* alias.c (true_dependence): Handle the same VALUE in x and mem.
(canon_true_dependence): Likewise.
(write_dependence_p): Likewise.
gcc/testsuite/
2010-05-04 H.J. Lu <hongjiu.lu@intel.com>
Backport from mainline
2010-05-04 H.J. Lu <hongjiu.lu@intel.com>
PR middle-end/43671
* gcc.target/i386/pr43671.c: New.
Added:
branches/gcc-4_4-branch/gcc/testsuite/gcc.target/i386/pr43671.c
Modified:
branches/gcc-4_4-branch/gcc/ChangeLog
branches/gcc-4_4-branch/gcc/alias.c
branches/gcc-4_4-branch/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43671