r202385 - in /branches/gcc-4_8-branch/gcc: Chan...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Mon Sep  9 09:47:24 2013
New Revision: 202385

URL: http://gcc.gnu.org/viewcvs?rev=202385&root=gcc&view=rev
Log:
2013-09-09  Richard Biener  <rguenther@suse.de>

	Backport from mainline
	2013-08-30  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/58223
	* tree-loop-distribution.c (has_anti_dependence): Rename to ...
	(has_anti_or_output_dependence): ... this and adjust to also
	look for output dependences.
	(mark_nodes_having_upstream_mem_writes): Adjust.
	(rdg_flag_uses): Likewise.

	* gcc.dg/torture/pr58223.c: New testcase.
	* gcc.dg/tree-ssa/ldist-16.c: Flip expected behavior.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/torture/pr58223.c
Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/tree-ssa/ldist-16.c
    branches/gcc-4_8-branch/gcc/tree-loop-distribution.c