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[Bug tree-optimization/50838] [4.7 Regression] ice in refs_may_alias_p_1 with -O3
- 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: Mon, 24 Oct 2011 12:31:06 +0000
- Subject: [Bug tree-optimization/50838] [4.7 Regression] ice in refs_may_alias_p_1 with -O3
- Auto-submitted: auto-generated
- References: <bug-50838-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50838
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-24 12:31:06 UTC ---
Author: rguenth
Date: Mon Oct 24 12:31:01 2011
New Revision: 180381
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=180381
Log:
2011-10-24 Richard Guenther <rguenther@suse.de>
PR tree-optimization/50838
* tree-data-ref.c (dr_analyze_indices): Properly canonicalize
a MEM_REF base if we change it.
* gcc.dg/torture/pr50838.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr50838.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-data-ref.c