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[Bug tree-optimization/21173] [4.0/4.1 regression] miscompiled pointer subtraction broke Linux kernel
- 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: 25 Apr 2005 14:00:04 -0000
- Subject: [Bug tree-optimization/21173] [4.0/4.1 regression] miscompiled pointer subtraction broke Linux kernel
- References: <20050423092333.21173.mikpe@csd.uu.se>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-04-25 13:59 -------
Subject: Bug 21173
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: dberlin@gcc.gnu.org 2005-04-25 13:59:39
Modified files:
gcc : ChangeLog tree-ssa-pre.c
Log message:
2005-04-25 Steven Bosscher <stevenb@suse.de>
Fix PR tree-optimization/21173
* tree-ssa-pre.c (create_expression_by_pieces): Simplify code.
Unshare expression we pass to force_gimple_operand.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.8450&r2=2.8451
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-pre.c.diff?cvsroot=gcc&r1=2.81&r2=2.82
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21173