http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55107
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> 2013-02-05 12:56:56 UTC --- Author: rguenth Date: Tue Feb 5 12:56:51 2013 New Revision: 195755 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195755 Log: 2013-02-05 Richard Biener <rguent...@suse.de> Backport from mainline 2012-12-10 Richard Biener <rguent...@suse.de> PR tree-optimization/55107 * tree-ssa-pre.c (struct pre_stats): Remove constified field. (bitmap_set_replace_value): Add gcc_unreachable. (do_regular_insertion): Re-write all_same handling. Insert an assignment instead of a PHI in this case. (execute_pre): Do not record constified events. * gcc.dg/torture/pr55107.c: New testcase. * gcc.dg/tree-ssa/ssa-pre-5.c: Adjust. Added: branches/gcc-4_7-branch/gcc/testsuite/gcc.dg/torture/pr55107.c Modified: branches/gcc-4_7-branch/gcc/ChangeLog branches/gcc-4_7-branch/gcc/testsuite/ChangeLog branches/gcc-4_7-branch/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-5.c branches/gcc-4_7-branch/gcc/tree-ssa-pre.c
