r202386 - in /branches/gcc-4_8-branch/gcc: Chan...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Mon Sep  9 09:48:43 2013
New Revision: 202386

URL: http://gcc.gnu.org/viewcvs?rev=202386&root=gcc&view=rev
Log:
2013-09-09  Richard Biener  <rguenther@suse.de>

	Backport from mainline
	2013-08-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/57685
	* tree-vrp.c (register_edge_assert_for_1): Recurse only for
	single-use operands to avoid exponential complexity.

	* gcc.dg/torture/pr57685.c: New testcase.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/torture/pr57685.c
Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_8-branch/gcc/tree-vrp.c