r192804 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Thu Oct 25 11:16:12 2012
New Revision: 192804

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192804
Log:
2012-10-25  Richard Biener  <rguenther@suse.de>

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

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

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