r169581 - in /branches/google/integration/gcc: ...

[dnovillo@gcc.gnu.org]

Author: dnovillo
Date: Wed Feb  2 17:46:33 2011
New Revision: 169581

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169581
Log:
Fix PR47271: only if-convert full writes.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>
	    Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/47271
	* tree-if-conv.c (bb_postdominates_preds): New.
	(if_convertible_bb_p): Call bb_postdominates_preds.
	(if_convertible_loop_p_1): Compute CDI_POST_DOMINATORS.
	(predicate_scalar_phi): Call bb_postdominates_preds.

	* gcc.dg/tree-ssa/ifc-pr47271.c: New.

Added:
    branches/google/integration/gcc/testsuite/gcc.dg/tree-ssa/ifc-pr47271.c
Modified:
    branches/google/integration/gcc/ChangeLog
    branches/google/integration/gcc/testsuite/ChangeLog
    branches/google/integration/gcc/tree-if-conv.c