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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: 26 May 2005 17:50:07 -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 2005-05-26 17:50 -------
Subject: Bug 21297
CVSROOT: /cvs/gcc
Module name: gcc
Branch: gcc-3_4-rhl-branch
Changes by: jakub@gcc.gnu.org 2005-05-26 17:49:50
Modified files:
gcc : ChangeLog
gcc/config/i386: i386.c
gcc/testsuite : ChangeLog
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-3_4-rhl-branch&r1=2.2326.2.399.2.78&r2=2.2326.2.399.2.79
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=1.635.2.8.2.11&r2=1.635.2.8.2.12
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=1.3389.2.170.2.49&r2=1.3389.2.170.2.50
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-3_4-rhl-branch&r1=NONE&r2=1.1.8.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21297