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[Bug tree-optimization/43220] [4.3/4.4 Regression] Paritially optimized __builtin_save_stack/__builtin_restore_stack causes segmentation fault
- From: "jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 2 Mar 2010 07:44:25 -0000
- Subject: [Bug tree-optimization/43220] [4.3/4.4 Regression] Paritially optimized __builtin_save_stack/__builtin_restore_stack causes segmentation fault
- References: <bug-43220-15361@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from jakub at gcc dot gnu dot org 2010-03-02 07:44 -------
Subject: Bug 43220
Author: jakub
Date: Tue Mar 2 07:44:03 2010
New Revision: 157160
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157160
Log:
Backport from mainline:
2010-03-01 Richard Guenther <rguenther@suse.de>
PR tree-optimization/43220
* tree-ssa-ccp.c (optimize_stack_restore): Do not optimize
BUILT_IN_STACK_{SAVE,RESTORE} around alloca.
* gcc.c-torture/execute/pr43220.c: New testcase.
Added:
branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/execute/pr43220.c
Modified:
branches/gcc-4_4-branch/gcc/ChangeLog
branches/gcc-4_4-branch/gcc/testsuite/ChangeLog
branches/gcc-4_4-branch/gcc/tree-ssa-ccp.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43220