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r151744 - in /branches/gcc-4_4-branch/gcc: Chan...
- From: rguenth at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Wed, 16 Sep 2009 11:56:32 -0000
- Subject: r151744 - in /branches/gcc-4_4-branch/gcc: Chan...
Author: rguenth
Date: Wed Sep 16 11:56:31 2009
New Revision: 151744
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=151744
Log:
2009-09-16 Richard Guenther <rguenther@suse.de>
Backport from mainline
2009-09-09 Richard Guenther <rguenther@suse.de>
PR tree-optimization/41101
* tree-ssa-pre.c (maximal_set): Remove.
(compute_antic_aux): Treat the maximal set as implicitly all ones.
Defer all blocks we didn't visit at least one successor.
(add_to_exp_gen): Do not add to the maximal set.
(make_values_for_phi): Likewise.
(compute_avail): Likewise.
(init_pre): Do not allocate the maximal set.
(execute_pre): Do not dump it.
* gcc.c-torture/compile/pr41101.c: New testcase.
Added:
branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr41101.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-pre.c