r237403 - in /trunk/gcc: ChangeLog testsuite/Ch...

[law@gcc.gnu.org]

Author: law
Date: Mon Jun 13 20:55:59 2016
New Revision: 237403

URL: https://gcc.gnu.org/viewcvs?rev=237403&root=gcc&view=rev
Log:
	PR tree-optimization/71403
	* tree-ssa-threadbackward.c
	(convert_and_register_jump_thread_path): No longer accept reference
	to path.  Do not pop items off the path anymore.
	(fsm_find_control_statement_thread_paths): Do not allow threading
	to a deeper loop nest.  Pop the last item off the path here rather
	than in convert_and_register_jump_thread_path.

	PR tree-optimization/71403
	* c-c++-common/ubsan/pr71403-1.c: New test.
	* c-c++-common/ubsan/pr71403-2.c: New test.
	* c-c++-common/ubsan/pr71403-3.c: New test.

Added:
    trunk/gcc/testsuite/c-c++-common/ubsan/pr71403-1.c
    trunk/gcc/testsuite/c-c++-common/ubsan/pr71403-2.c
    trunk/gcc/testsuite/c-c++-common/ubsan/pr71403-3.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-threadbackward.c