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r191030 - in /trunk/gcc: ChangeLog tree-ssa-ali...
- From: rguenth at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Thu, 06 Sep 2012 14:47:43 -0000
- Subject: r191030 - in /trunk/gcc: ChangeLog tree-ssa-ali...
Author: rguenth
Date: Thu Sep 6 14:47:42 2012
New Revision: 191030
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=191030
Log:
2012-09-06 Richard Guenther <rguenther@suse.de>
PR tree-optimization/54498
* tree-ssa-alias.h (get_continuation_for_phi): Add flag to
abort when reaching an already visited region.
* tree-ssa-alias.c (maybe_skip_until): Likewise. And do it.
(get_continuation_for_phi_1): Likewise.
(walk_non_aliased_vuses): When we translated the reference,
abort when we re-visit a region.
* tree-ssa-pre.c (translate_vuse_through_block): Adjust.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-ssa-alias.c
trunk/gcc/tree-ssa-alias.h
trunk/gcc/tree-ssa-pre.c