https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65244
--- Comment #8 from howarth at bromo dot med.uc.edu --- I wonder if this is the same issue as https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63748 which was fixed in trunk by r217317... 2014-11-10 Patrick Palka <ppa...@gcc.gnu.org> gcc/ PR middle-end/63748 * tree-ssa-propagate.c (may_propagate_copy): Allow propagating SSA copies whose source and destination names both occur in abnormal PHIs. gcc/testsuite/ PR middle-end/63748 * gcc.dg/pr63748.c: New testcase. but never back ported to gcc-4_9-branch.
