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[Bug optimization/14669] [3.4/3.5 Regression] Wrong code with -O for enum values expression E4 <= t && t <= E6
- 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: 23 Mar 2004 14:27:01 -0000
- Subject: [Bug optimization/14669] [3.4/3.5 Regression] Wrong code with -O for enum values expression E4 <= t && t <= E6
- References: <20040321141018.14669.wanderer@rsu.ru>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-03-23 14:26 -------
Subject: Bug 14669
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: sayle@gcc.gnu.org 2004-03-23 14:26:43
Modified files:
gcc : ChangeLog fold-const.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/g++.dg/opt: fold2.C
Log message:
2004-03-23 Kazu Hirata <kazu@cs.umass.edu>
PR optimization/14669
* fold-const.c (fold): Only unwiden integer comparisons for equality
or inequality operators, or when the signedness is the same.
* g++.dg/opt/fold2.C: New test case.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.3263&r2=2.3264
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fold-const.c.diff?cvsroot=gcc&r1=1.355&r2=1.356
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3630&r2=1.3631
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/opt/fold2.C.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14669