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r143228 - in /branches/alias-improvements/gcc: ...


Author: rguenth
Date: Fri Jan  9 20:00:46 2009
New Revision: 143228

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143228
Log:
2009-01-09  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-alias.c (get_continuation_for_phi): Add visited param,
	adjust maybe_skip_until calls.
	(maybe_skip_until): Likewise.  All multiply visited PHI nodes
	finish the walking.
	(walk_non_aliased_vuses): Adjust get_continuation_for_phi calls.
	Free visited bitmap.

	* gcc.dg/tree-ssa/ssa-fre-20.c: New testcase.

Added:
    branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-20.c
Modified:
    branches/alias-improvements/gcc/ChangeLog.alias
    branches/alias-improvements/gcc/tree-ssa-alias.c


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