re PR middle-end/61378 (Obvious bug in vn_reference_lookup_3)

2014-06-02  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/61378
	* tree-ssa-sccvn.c (vn_reference_lookup_3): Initialize
	valueized_anything.

From-SVN: r211126

gcc/ChangeLog

+2014-06-02  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/61378
+	* tree-ssa-sccvn.c (vn_reference_lookup_3): Initialize
+	valueized_anything.
+
 2014-06-01  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/constraints.md (Bw): Rename from 'w'.

gcc/tree-ssa-sccvn.c

@@ -1613,7 +1613,7 @@ vn_reference_lookup_3 (ao_ref *ref, tree vuse, void *vr_,
 	 conditional calls to free falsely clobbering ref because
 	 of imprecise points-to info of the argument.  */
       tree oldargs[4];
-      bool valueized_anything;
+      bool valueized_anything = false;
       for (unsigned i = 0; i < gimple_call_num_args (def_stmt); ++i)
 	{
 	  oldargs[i] = gimple_call_arg (def_stmt, i);