r202489 - in /trunk/gcc: ChangeLog testsuite/Ch...

[law@gcc.gnu.org]

Author: law
Date: Wed Sep 11 02:23:48 2013
New Revision: 202489

URL: http://gcc.gnu.org/viewcvs?rev=202489&root=gcc&view=rev
Log:
	PR tree-optimization/58380
	* tree-ssa-threadupdate.c (thread_block): Recognize another case
	of threading through a buried loop header.

	* tree-ssa-threadedge.c (thread_around_empty_blocks): Correct
	return value for single successor case.

	* g++.dg/torture/pr58380.C: New test.

2013-09-10  Jeff Law  <law@redhat.com>

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr58380.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-threadedge.c
    trunk/gcc/tree-ssa-threadupdate.c