https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83312
--- Comment #9 from David Malcolm <dmalcolm at gcc dot gnu.org> --- Author: dmalcolm Date: Thu Dec 14 17:15:39 2017 New Revision: 255649 URL: https://gcc.gnu.org/viewcvs?rev=255649&root=gcc&view=rev Log: vrp_prop: Use dom_walker for -Warray-bounds (PR tree-optimization/83312) gcc/ChangeLog: PR tree-optimization/83312 * domwalk.h (dom_walker::dom_walker): Fix typo in comment. * tree-cfg.c (find_taken_edge): Update to handle NULL_TREE for "val" param, and to cope with arbitrary basic blocks. (find_taken_edge_cond_expr): Add "cond_stmt" param and use it to handle NULL_TREE for "val", dropping "bb" param. (find_taken_edge_switch_expr): Make "switch_stmt" param const and drop "bb" param. Handle NULL_TREE for "val". (find_case_label_for_value): Make "switch_stmt" param const. * tree-vrp.c (class check_array_bounds_dom_walker): New subclass of dom_walker. (vrp_prop::check_all_array_refs): Reimplement as... (check_array_bounds_dom_walker::before_dom_children): ...this new vfunc. Replace linear search through BB block list, excluding those with non-executable in-edges via dominator walk. gcc/testsuite/ChangeLog: PR tree-optimization/83312 * gcc.dg/pr83312.c: New test case. Added: trunk/gcc/testsuite/gcc.dg/pr83312.c Modified: trunk/gcc/ChangeLog trunk/gcc/domwalk.h trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-cfg.c trunk/gcc/tree-vrp.c
