https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68398
--- Comment #6 from Jeffrey A. Law <law at gcc dot gnu.org> --- Author: law Date: Mon Jan 25 19:19:09 2016 New Revision: 232802 URL: https://gcc.gnu.org/viewcvs?rev=232802&root=gcc&view=rev Log: PR tree-optimization/69196 PR tree-optimization/68398 * tree-ssa-threadupdate.h (enum bb_dom_status): Moved here from tree-ssa-threadupdate.c. (determine_bb_domination_status): Prototype * tree-ssa-threadupdate.c (enum bb_dom_status): Remove (determine_bb_domination_status): No longer static. (valid_jump_thread_path): Remove code to detect characteristics of the jump thread path not associated with correctness. * tree-ssa-threadbackward.c (fsm_find_control_statment_thread_paths): Correct test for thread path length. Count PHIs for real operands as statements that need to be copied. Do not count ASSERT_EXPRs. Look at all the blocks in the thread path. Compute and selectively filter thread paths based on threading through the latch, threading a multiway branch or crossing a multiway branch. PR tree-optimization/69196 PR tree-optimization/68398 * gcc.dg/tree-ssa/pr66752-3.c: Update expected output * gcc.dg/tree-ssa/pr68198.c: Likewise. Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.dg/tree-ssa/pr66752-3.c trunk/gcc/testsuite/gcc.dg/tree-ssa/pr68198.c trunk/gcc/tree-ssa-threadbackward.c trunk/gcc/tree-ssa-threadupdate.c trunk/gcc/tree-ssa-threadupdate.h
