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[Bug tree-optimization/22591] [4.0 regression] wrong alias information causes an incorrect redundant load elimination
- 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 Jul 2005 20:54:43 -0000
- Subject: [Bug tree-optimization/22591] [4.0 regression] wrong alias information causes an incorrect redundant load elimination
- References: <20050721155650.22591.Simon.Finn@reify.co.uk>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-07-26 20:54 -------
Subject: Bug 22591
CVSROOT: /cvs/gcc
Module name: gcc
Branch: gcc-4_0-branch
Changes by: dnovillo@gcc.gnu.org 2005-07-26 20:54:31
Modified files:
gcc : ChangeLog tree-ssa-alias.c
gcc/testsuite : ChangeLog
gcc/testsuite/gcc.dg/tree-ssa: 20030807-7.c
Added files:
gcc/testsuite/gcc.dg/tree-ssa: pr22591.c
Log message:
PR 22591
* tree-ssa-alias.c (may_alias_p): Remove shortcut that tests
whether a pointer of type T * may point to objects of type T *.
testsuite/ChangeLog
PR 22591
* gcc.dg/tree-ssa/pr22591.c: New test.
* gcc.dg/tree-ssa/20030807-7.c: XFAIL everywhere.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.7592.2.332&r2=2.7592.2.333
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-alias.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.71.2.1&r2=2.71.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.5084.2.301&r2=1.5084.2.302
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/pr22591.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=NONE&r2=1.1.2.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/20030807-7.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.3&r2=1.3.36.1
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22591