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[Bug rtl-optimization/19579] [3.3/3.4 regression] -march=i686 generates a bogus program for x86*
- From: "cvs-commit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Feb 2005 17:11:55 -0000
- Subject: [Bug rtl-optimization/19579] [3.3/3.4 regression] -march=i686 generates a bogus program for x86*
- References: <20050123002852.19579.abulmo@club-internet.fr>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-02-10 17:11 -------
Subject: Bug 19579
CVSROOT: /cvs/gcc
Module name: gcc
Branch: gcc-3_4-branch
Changes by: jakub@gcc.gnu.org 2005-02-10 17:11:13
Modified files:
gcc : ChangeLog ifcvt.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.c-torture/execute: 20050124-1.c
Log message:
PR rtl-optimization/19579
* ifcvt.c (noce_try_cmove_arith): If emitting instructions to set up
both A and B, see if they don't clobber registers the other expr uses.
* gcc.c-torture/execute/20050124-1.c: New test.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=2.2326.2.795&r2=2.2326.2.796
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ifcvt.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.136.4.1&r2=1.136.4.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3389.2.358&r2=1.3389.2.359
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20050124-1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.12.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19579