https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81192
--- Comment #19 from Tom de Vries <vries at gcc dot gnu.org> --- Author: vries Date: Thu Jul 13 05:42:15 2017 New Revision: 250175 URL: https://gcc.gnu.org/viewcvs?rev=250175&root=gcc&view=rev Log: Backport "Fix sigsegv in find_same_succ_bb" 2017-07-13 Tom de Vries <t...@codesourcery.com> backport from mainline: 2017-07-03 Tom de Vries <t...@codesourcery.com> PR tree-optimization/81192 * tree-ssa-tail-merge.c (same_succ_flush_bb): Handle BB_SAME_SUCC (bb) == NULL. * gcc.dg/pr81192.c: New test. Added: branches/gcc-6-branch/gcc/testsuite/gcc.dg/pr81192.c Modified: branches/gcc-6-branch/gcc/ChangeLog branches/gcc-6-branch/gcc/testsuite/ChangeLog branches/gcc-6-branch/gcc/tree-ssa-tail-merge.c