https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79088
--- Comment #6 from Jeffrey A. Law <law at gcc dot gnu.org> --- Author: law Date: Mon Jan 23 22:29:17 2017 New Revision: 244837 URL: https://gcc.gnu.org/viewcvs?rev=244837&root=gcc&view=rev Log: 2017-01-23 Richard Biener <rguent...@suse.de> PR tree-optimization/79088 PR tree-optimization/79188 * tree-ssa-threadupdate.c (mark_threaded_blocks): Move code resetting loop bounds after last path deletion. Reset loop bounds of the target loop, make code match the comments. * tree-ssa-threadbackwards.c (pass_early_thread_jumps::execute): Make sure loops need no fixups. * gcc.dg/torture/pr79088.c: New testcase. * gcc.dg/torture/pr79188.c: Likewise. Added: trunk/gcc/testsuite/gcc.dg/torture/pr79088.c trunk/gcc/testsuite/gcc.dg/torture/pr79188.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-threadbackward.c trunk/gcc/tree-ssa-threadupdate.c
