re PR tree-optimization/50319 (if-conversion produces unvectorizable conditions)
2011-09-07 Richard Guenther <rguenther@suse.de> PR tree-optimization/50319 * tree-if-conv.c (set_bb_predicate): Assert we only set canonical predicates. (add_to_predicate_list): Simplify. Allow TRUTH_NOT_EXPR around canonical predicates. (predicate_bbs): Do not re-gimplify already canonical predicates. Properly unshare them though. (find_phi_replacement_condition): Simplify. From-SVN: r178638
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