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[Bug tree-optimization/54547] [4.8 regression] FAIL: gcc.dg/tree-ssa/pr37508.c scan-tree-dump-times vrp1 "Folding" 3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54547

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> 2012-11-28 12:18:47 UTC ---
Author: rguenth
Date: Wed Nov 28 12:18:39 2012
New Revision: 193888

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193888
Log:
2012-11-28  Richard Biener  <rguenther@suse.de>

    PR tree-optimization/54547
    * tree-vrp.c (set_and_canonicalize_value_range): Handle
    1-bit anti-ranges explicitely.
    (extract_range_from_assert): Properly canonicalize all
    built anti-ranges.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-vrp.c


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