--- old/src/share/vm/opto/memnode.hpp	2012-10-08 20:36:49.280551022 +0200
+++ new/src/share/vm/opto/memnode.hpp	2012-10-08 20:36:49.085691469 +0200
@@ -437,12 +437,12 @@
 // Load a narrow Klass from an object.
 class LoadNKlassNode : public LoadNNode {
 public:
-  LoadNKlassNode( Node *c, Node *mem, Node *adr, const TypePtr *at, const TypeNarrowOop *tk )
+  LoadNKlassNode( Node *c, Node *mem, Node *adr, const TypePtr *at, const TypeNarrowKlass *tk )
     : LoadNNode(c,mem,adr,at,tk) {}
   virtual int Opcode() const;
   virtual uint ideal_reg() const { return Op_RegN; }
-  virtual int store_Opcode() const { return Op_StoreN; }
-  virtual BasicType memory_type() const { return T_NARROWOOP; }
+  virtual int store_Opcode() const { return Op_StoreNKlass; }
+  virtual BasicType memory_type() const { return T_NARROWKLASS; }
 
   virtual const Type *Value( PhaseTransform *phase ) const;
   virtual Node *Identity( PhaseTransform *phase );
@@ -593,6 +593,15 @@
   virtual BasicType memory_type() const { return T_NARROWOOP; }
 };
 
+//------------------------------StoreNKlassNode--------------------------------------
+// Store narrow klass to memory
+class StoreNKlassNode : public StoreNNode {
+public:
+  StoreNKlassNode( Node *c, Node *mem, Node *adr, const TypePtr* at, Node *val ) : StoreNNode(c,mem,adr,at,val) {}
+  virtual int Opcode() const;
+  virtual BasicType memory_type() const { return T_NARROWKLASS; }
+};
+
 //------------------------------StoreCMNode-----------------------------------
 // Store card-mark byte to memory for CM
 // The last StoreCM before a SafePoint must be preserved and occur after its "oop" store