r192803 - in /branches/gcc-4_7-branch/gcc: Chan...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Thu Oct 25 11:05:43 2012
New Revision: 192803

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192803
Log:
2012-10-25  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/54902
	* tree-ssa-pre.c (fini_pre): Return TODO.
	(execute_pre): Adjust.
	* tree-ssa-tailmerge.c (tail_merge_optimize): Delete unreachable
	blocks before computing dominators.

	* g++.dg/torture/pr54902.C: New testcase.

Added:
    branches/gcc-4_7-branch/gcc/testsuite/g++.dg/torture/pr54902.C
Modified:
    branches/gcc-4_7-branch/gcc/ChangeLog
    branches/gcc-4_7-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_7-branch/gcc/tree-ssa-pre.c
    branches/gcc-4_7-branch/gcc/tree-ssa-tail-merge.c