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[Bug rtl-optimization/25654] [4.0/4.1/4.2 Regression] RTL alias analysis unprepared to handle stack slot sharing
- From: "rguenth 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 Jan 2006 09:47:07 -0000
- Subject: [Bug rtl-optimization/25654] [4.0/4.1/4.2 Regression] RTL alias analysis unprepared to handle stack slot sharing
- References: <bug-25654-280@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #14 from rguenth at gcc dot gnu dot org 2006-01-23 09:47 -------
Subject: Bug 25654
Author: rguenth
Date: Mon Jan 23 09:47:01 2006
New Revision: 110109
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=110109
Log:
2006-01-23 Steven Bosscher <stevenb.gcc@gmail.com>
Jan Hubicka <jh@suse.cz>
Richard Guenther <rguenther@suse.de>
PR rtl-optimization/25654
* cfgexpand.c (aggregate_contains_union_type): New function.
(add_alias_set_conflicts): Call it. Make sure to add conflicts
for structure variables that contain a union type.
* gcc.dg/torture/pr25654.c: New testcase.
* gcc.target/i386/pr25654.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr25654.c
trunk/gcc/testsuite/gcc.target/i386/pr25654.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/cfgexpand.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25654