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[Bug middle-end/43464] copy prop breaks loop closed SSA form



------- Comment #14 from spop at gcc dot gnu dot org  2010-03-30 16:57 -------
Subject: Bug 43464

Author: spop
Date: Tue Mar 30 16:56:49 2010
New Revision: 157828

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157828
Log:
Fix PR43464: copyprop should maintain loop close phi nodes with multiple
arguments.

2010-03-30  Richard Guenther  <rguenther@suse.de>
            Zdenek Dvorak  <ook@ucw.cz>
            Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/43464
        * tree-ssa-copy.c (init_copy_prop): Handle loop close phi nodes
        with multiple arguments.
        (execute_copy_prop): Remove call to rewrite_into_loop_closed_ssa.

Modified:
    branches/graphite/gcc/ChangeLog.graphite
    branches/graphite/gcc/tree-ssa-copy.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43464


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