diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6af3858cb67..e21b3c8729e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+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
diff --git a/gcc/tree-ssa-pre.c b/gcc/tree-ssa-pre.c
index 9cf874df7b7..9c95ef6a2d3 100644
--- a/gcc/tree-ssa-pre.c
+++ b/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;