r196771 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Mon Mar 18 08:53:42 2013
New Revision: 196771

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=196771
Log:
2013-03-18  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/3713
	* tree-ssa-sccvn.c (visit_copy): Simplify.  Always propagate
	has_constants and expr.
	(stmt_has_constants): Properly valueize SSA names when deciding
	whether the stmt has constants.

	* g++.dg/ipa/devirt-12.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/ipa/devirt-12.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-sccvn.c