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[Bug optimization/13037] [3.3 regression] [gcse-lm] g77 generates incorrect code
- 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: 12 Dec 2003 14:31:23 -0000
- Subject: [Bug optimization/13037] [3.3 regression] [gcse-lm] g77 generates incorrect code
- References: <20031113124715.13037.smelkov@mph1.phys.spbu.ru>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2003-12-12 14:31 -------
Subject: Bug 13037
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: sayle@gcc.gnu.org 2003-12-12 14:31:18
Modified files:
gcc : ChangeLog loop.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/g77.f-torture/execute: 13037.f
Log message:
PR optimization/13037
* loop.c (update_giv_derive): Ignore redundant sets of a biv when
calculating how to derive a giv from a biv.
* g77.f-torture/execute/13037.f: New test case.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.1986&r2=2.1987
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/loop.c.diff?cvsroot=gcc&r1=1.478&r2=1.479
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3247&r2=1.3248
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g77.f-torture/execute/13037.f.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13037