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[Bug target/21297] [4.0 Regression] buf[i+i]=0 stores buf[i] when -O2
- 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: 4 May 2005 07:24:56 -0000
- Subject: [Bug target/21297] [4.0 Regression] buf[i+i]=0 stores buf[i] when -O2
- References: <20050430155432.21297.akr@m17n.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-05-04 07:24 -------
Subject: Bug 21297
CVSROOT: /cvs/gcc
Module name: gcc
Branch: gcc-4_0-branch
Changes by: jakub@gcc.gnu.org 2005-05-04 07:24:34
Modified files:
gcc : ChangeLog
gcc/testsuite : ChangeLog
gcc/config/i386: i386.c
Added files:
gcc/testsuite/gcc.c-torture/execute: 20050502-2.c
Log message:
PR target/21297
* config/i386/i386.c (legitimize_address): When canonicalizing
ASHIFT into MULT, multiply by 1 << shift_count instead of
1 << log2 (shift_count).
* gcc.c-torture/execute/20050502-2.c: New test.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.7592.2.214&r2=2.7592.2.215
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.5084.2.157&r2=1.5084.2.158
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.795.6.6&r2=1.795.6.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20050502-2.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=NONE&r2=1.1.2.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21297