https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70623
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Thu Apr 14 07:30:53 2016 New Revision: 234970 URL: https://gcc.gnu.org/viewcvs?rev=234970&root=gcc&view=rev Log: 2016-04-14 Richard Biener <rguent...@suse.de> PR tree-optimization/70623 * tree-ssa-pre.c (changed_blocks): Make global ... (compute_antic): ... local here. Move and fix worklist handling here. Do not clear EDGE_DFS_BACK or call mark_dfs_back_edges. (compute_antic_aux): Add dumping for MAX assumed succs. Remove worklist handling, dump when ANTIC_IN changed. (compute_partial_antic_aux): Remove worklist handling. (init_pre): Do not compute post dominators. Add a comment about the CFG order chosen. (fini_pre): Do not free post dominators. * gcc.dg/torture/pr70623.c: New testcase. * gcc.dg/torture/pr70623-2.c: Likewise. Added: trunk/gcc/testsuite/gcc.dg/torture/pr70623-2.c trunk/gcc/testsuite/gcc.dg/torture/pr70623.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-pre.c