diff -r 34e2e90e7182 -r f457154eee8b src/share/vm/opto/loopnode.cpp
--- a/src/share/vm/opto/loopnode.cpp	Tue Jan 24 14:48:22 2012 +0100
+++ b/src/share/vm/opto/loopnode.cpp	Mon Jan 30 12:36:49 2012 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -898,7 +898,7 @@
 Node* CountedLoopNode::match_incr_with_optional_truncation(
                       Node* expr, Node** trunc1, Node** trunc2, const TypeInt** trunc_type) {
   // Quick cutouts:
-  if (expr == NULL || expr->req() != 3)  return false;
+  if (expr == NULL || expr->req() != 3)  return NULL;
 
   Node *t1 = NULL;
   Node *t2 = NULL;