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From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/36343] [4.3/4.4 Regression] Wrong code due to bad TBAA pruning of points-to-sets and use in call clobbering Date: Thu, 29 May 2008 10:33:00 -0000 [thread overview] Message-ID: <20080529103248.32321.qmail@sourceware.org> (raw) In-Reply-To: <bug-36343-10053@http.gcc.gnu.org/bugzilla/> ------- Comment #2 from rguenth at gcc dot gnu dot org 2008-05-29 10:32 ------- Subject: Bug 36343 Author: rguenth Date: Thu May 29 10:31:58 2008 New Revision: 136152 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=136152 Log: 2008-05-29 Richard Guenther <rguenther@suse.de> PR tree-optimization/36343 PR tree-optimization/36346 PR tree-optimization/36347 * tree-flow.h (clobber_what_p_points_to): Declare. * tree-ssa-structalias.c (set_uids_in_ptset): Whether the pointed-to variable is dereferenced is irrelevant to whether the pointer can access the pointed-to variable. (clobber_what_p_points_to): New function. * tree-ssa-alias.c (set_initial_properties): Use it. * tree-ssa.c (verify_flow_sensitive_alias_info): Adjust call clobber check for NMTs. * gcc.c-torture/execute/pr36343.c: New testcase. Added: trunk/gcc/testsuite/gcc.c-torture/execute/pr36343.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-flow.h trunk/gcc/tree-ssa-alias.c trunk/gcc/tree-ssa-structalias.c trunk/gcc/tree-ssa.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36343
next prev parent reply other threads:[~2008-05-29 10:33 UTC|newest] Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top 2008-05-27 12:42 [Bug tree-optimization/36343] New: " rguenth at gcc dot gnu dot org 2008-05-27 12:46 ` [Bug tree-optimization/36343] [4.3/4.4 Regression] " rguenth at gcc dot gnu dot org 2008-05-27 12:46 ` rguenth at gcc dot gnu dot org 2008-05-28 22:12 ` rguenth at gcc dot gnu dot org 2008-05-29 10:33 ` rguenth at gcc dot gnu dot org [this message] 2008-05-29 10:35 ` rguenth at gcc dot gnu dot org 2008-06-06 15:04 ` [Bug tree-optimization/36343] [4.3 " rguenth at gcc dot gnu dot org 2008-08-27 22:09 ` jsm28 at gcc dot gnu dot org 2008-09-17 14:47 ` rguenth at gcc dot gnu dot org 2008-09-17 15:08 ` ebotcazou at gcc dot gnu dot org 2008-09-17 15:12 ` rguenther at suse dot de 2008-09-19 15:06 ` rguenth at gcc dot gnu dot org 2008-09-19 15:07 ` rguenth at gcc dot gnu dot org
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