tree-ssa-pre.c (get_expr_value_id): Do not allocate value-ids here.

2012-11-30  Richard Biener  <rguenther@suse.de>

	* tree-ssa-pre.c (get_expr_value_id): Do not allocate value-ids
	here.

From-SVN: r193993

gcc/ChangeLog

 2012-11-30  Richard Biener  <rguenther@suse.de>
 
+	* tree-ssa-pre.c (get_expr_value_id): Do not allocate value-ids
+	here.
+
+2012-11-30  Richard Biener  <rguenther@suse.de>
+
 	* tree-ssa-sccvn.c (run_scc_vn): Remove iteration propagating
 	value_ids.
 

gcc/tree-ssa-pre.c

@@ -616,7 +616,7 @@ get_expr_value_id (pre_expr expr)
   switch (expr->kind)
     {
     case CONSTANT:
-      id = get_or_alloc_constant_value_id (PRE_EXPR_CONSTANT (expr));
+      id = get_constant_value_id (PRE_EXPR_CONSTANT (expr));
       break;
     case NAME:
       id = VN_INFO (PRE_EXPR_NAME (expr))->value_id;