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2018-03-05 Richard Biener <rguenther@suse.de> PR tree-optimization/84670 * tree-ssa-pre.c (struct bb_bitmap_sets): Add visited_with_visited_succs member. (BB_VISITED_WITH_VISITED_SUCCS): New define. (compute_antic): Initialize BB_VISITED_WITH_VISITED_SUCCS. (compute_antic_aux): Only assert the number of values in ANTIC_IN doesn't grow if all successors (recursively) were visited at least once. * gcc.dg/pr84670-1.c: New testcase. * gcc.dg/pr84670-2.c: Likewise. * gcc.dg/pr84670-3.c: Likewise. * gcc.dg/pr84670-4.c: Likewise. From-SVN: r258243
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