[Bug tree-optimization/41101] [4.4/4.5 Regression] ICE in compute_antic, at tree-ssa-pre.c:2419
------- Comment #23 from rguenth at gcc dot gnu dot org 2009-09-09 15:05 -------
Subject: Bug 41101
Author: rguenth
Date: Wed Sep 9 15:04:27 2009
New Revision: 151561
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=151561
Log:
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:
trunk/gcc/testsuite/gcc.c-torture/compile/pr41101.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-pre.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41101
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