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[Bug middle-end/52493] [4.8 Regression] tree check fail in ptr_derefs_may_alias_p
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 06 Mar 2012 13:13:21 +0000
- Subject: [Bug middle-end/52493] [4.8 Regression] tree check fail in ptr_derefs_may_alias_p
- Auto-submitted: auto-generated
- References: <bug-52493-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52493
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-03-06 13:13:21 UTC ---
Author: rguenth
Date: Tue Mar 6 13:13:14 2012
New Revision: 184987
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=184987
Log:
2012-03-06 Richard Guenther <rguenther@suse.de>
PR middle-end/52493
* tree-ssa-alias.c (ptr_derefs_may_alias_p): Robustify.
* gcc.dg/torture/pr52493.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr52493.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-alias.c