diff -r f4edb0d9f109 -r 21d113ecbf6a hotspot/src/share/vm/opto/subnode.hpp
--- a/hotspot/src/share/vm/opto/subnode.hpp	Fri Apr 11 09:56:35 2008 -0400
+++ b/hotspot/src/share/vm/opto/subnode.hpp	Sun Apr 13 17:43:42 2008 -0400
@@ -163,6 +163,16 @@
   virtual const Type *sub( const Type *, const Type * ) const;
 };
 
+//------------------------------CmpNNode--------------------------------------
+// Compare 2 narrow oop values, returning condition codes (-1, 0 or 1).
+class CmpNNode : public CmpNode {
+public:
+  CmpNNode( Node *in1, Node *in2 ) : CmpNode(in1,in2) {}
+  virtual int Opcode() const;
+  virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
+  virtual const Type *sub( const Type *, const Type * ) const;
+};
+
 //------------------------------CmpLNode---------------------------------------
 // Compare 2 long values, returning condition codes (-1, 0 or 1).
 class CmpLNode : public CmpNode {