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[Bug middle-end/19068] [3.3/3.4 only] Wrong code for MIN_EXPR and MAX_EXPR
- 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: 19 Dec 2004 20:01:48 -0000
- Subject: [Bug middle-end/19068] [3.3/3.4 only] Wrong code for MIN_EXPR and MAX_EXPR
- References: <20041218153933.19068.steven@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-12-19 20:01 -------
Subject: Bug 19068
CVSROOT: /cvs/gcc
Module name: gcc
Branch: gcc-3_4-branch
Changes by: sayle@gcc.gnu.org 2004-12-19 20:01:36
Modified files:
gcc : ChangeLog expr.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/g++.dg/opt: max1.C
Log message:
PR middle-end/19068
* expr.c (expand_expr_real_1) <MAX_EXPR>: Ensure that target, op0
and op1 are all registers (or constants) before expanding the RTL
comparison sequence [to avoid reg_overlap_mentioned (target, op1)].
* g++.dg/opt/max1.C: New test case.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=2.2326.2.747&r2=2.2326.2.748
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/expr.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.615.4.18&r2=1.615.4.19
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3389.2.332&r2=1.3389.2.333
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/opt/max1.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.2.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19068