--- a/src/share/vm/opto/memnode.hpp	Wed Sep 19 16:50:26 2012 -0700
+++ b/src/share/vm/opto/memnode.hpp	Thu Sep 20 16:49:17 2012 +0200
@@ -657,23 +657,36 @@
 //------------------------------LoadStoreNode---------------------------
 // Note: is_Mem() method returns 'true' for this class.
 class LoadStoreNode : public Node {
+private:
+  const Type* const _type;      // What kind of value is loaded?
+  const TypePtr* _adr_type;     // What kind of memory is being addressed?
+  virtual uint size_of() const; // Size is bigger
+public:
+  LoadStoreNode( Node *c, Node *mem, Node *adr, Node *val, const TypePtr* at, const Type* rt, uint required );
+  virtual bool depends_only_on_test() const { return false; }
+  virtual uint match_edge(uint idx) const { return idx == MemNode::Address || idx == MemNode::ValueIn; }
+
+  virtual const Type *bottom_type() const { return _type; }
+  virtual uint ideal_reg() const;
+  virtual const class TypePtr *adr_type() const { return _adr_type; }  // returns bottom_type of address
+
+  bool result_not_used() const;
+};
+
+class LoadStoreConditionalNode : public LoadStoreNode {
 public:
   enum {
     ExpectedIn = MemNode::ValueIn+1 // One more input than MemNode
   };
-  LoadStoreNode( Node *c, Node *mem, Node *adr, Node *val, Node *ex);
-  virtual bool depends_only_on_test() const { return false; }
-  virtual const Type *bottom_type() const { return TypeInt::BOOL; }
-  virtual uint ideal_reg() const { return Op_RegI; }
-  virtual uint match_edge(uint idx) const { return idx == MemNode::Address || idx == MemNode::ValueIn; }
+  LoadStoreConditionalNode(Node *c, Node *mem, Node *adr, Node *val, Node *ex);
 };
 
 //------------------------------StorePConditionalNode---------------------------
 // Conditionally store pointer to memory, if no change since prior
 // load-locked.  Sets flags for success or failure of the store.
-class StorePConditionalNode : public LoadStoreNode {
+class StorePConditionalNode : public LoadStoreConditionalNode {
 public:
-  StorePConditionalNode( Node *c, Node *mem, Node *adr, Node *val, Node *ll ) : LoadStoreNode(c, mem, adr, val, ll) { }
+  StorePConditionalNode( Node *c, Node *mem, Node *adr, Node *val, Node *ll ) : LoadStoreConditionalNode(c, mem, adr, val, ll) { }
   virtual int Opcode() const;
   // Produces flags
   virtual uint ideal_reg() const { return Op_RegFlags; }
@@ -682,9 +695,9 @@
 //------------------------------StoreIConditionalNode---------------------------
 // Conditionally store int to memory, if no change since prior
 // load-locked.  Sets flags for success or failure of the store.
-class StoreIConditionalNode : public LoadStoreNode {
+class StoreIConditionalNode : public LoadStoreConditionalNode {
 public:
-  StoreIConditionalNode( Node *c, Node *mem, Node *adr, Node *val, Node *ii ) : LoadStoreNode(c, mem, adr, val, ii) { }
+  StoreIConditionalNode( Node *c, Node *mem, Node *adr, Node *val, Node *ii ) : LoadStoreConditionalNode(c, mem, adr, val, ii) { }
   virtual int Opcode() const;
   // Produces flags
   virtual uint ideal_reg() const { return Op_RegFlags; }
@@ -693,9 +706,9 @@
 //------------------------------StoreLConditionalNode---------------------------
 // Conditionally store long to memory, if no change since prior
 // load-locked.  Sets flags for success or failure of the store.
-class StoreLConditionalNode : public LoadStoreNode {
+class StoreLConditionalNode : public LoadStoreConditionalNode {
 public:
-  StoreLConditionalNode( Node *c, Node *mem, Node *adr, Node *val, Node *ll ) : LoadStoreNode(c, mem, adr, val, ll) { }
+  StoreLConditionalNode( Node *c, Node *mem, Node *adr, Node *val, Node *ll ) : LoadStoreConditionalNode(c, mem, adr, val, ll) { }
   virtual int Opcode() const;
   // Produces flags
   virtual uint ideal_reg() const { return Op_RegFlags; }
@@ -703,32 +716,75 @@
 
 
 //------------------------------CompareAndSwapLNode---------------------------
-class CompareAndSwapLNode : public LoadStoreNode {
+class CompareAndSwapLNode : public LoadStoreConditionalNode {
 public:
-  CompareAndSwapLNode( Node *c, Node *mem, Node *adr, Node *val, Node *ex) : LoadStoreNode(c, mem, adr, val, ex) { }
+  CompareAndSwapLNode( Node *c, Node *mem, Node *adr, Node *val, Node *ex) : LoadStoreConditionalNode(c, mem, adr, val, ex) { }
   virtual int Opcode() const;
 };
 
 
 //------------------------------CompareAndSwapINode---------------------------
-class CompareAndSwapINode : public LoadStoreNode {
+class CompareAndSwapINode : public LoadStoreConditionalNode {
 public:
-  CompareAndSwapINode( Node *c, Node *mem, Node *adr, Node *val, Node *ex) : LoadStoreNode(c, mem, adr, val, ex) { }
+  CompareAndSwapINode( Node *c, Node *mem, Node *adr, Node *val, Node *ex) : LoadStoreConditionalNode(c, mem, adr, val, ex) { }
   virtual int Opcode() const;
 };
 
 
 //------------------------------CompareAndSwapPNode---------------------------
-class CompareAndSwapPNode : public LoadStoreNode {
+class CompareAndSwapPNode : public LoadStoreConditionalNode {
 public:
-  CompareAndSwapPNode( Node *c, Node *mem, Node *adr, Node *val, Node *ex) : LoadStoreNode(c, mem, adr, val, ex) { }
+  CompareAndSwapPNode( Node *c, Node *mem, Node *adr, Node *val, Node *ex) : LoadStoreConditionalNode(c, mem, adr, val, ex) { }
   virtual int Opcode() const;
 };
 
 //------------------------------CompareAndSwapNNode---------------------------
-class CompareAndSwapNNode : public LoadStoreNode {
+class CompareAndSwapNNode : public LoadStoreConditionalNode {
+public:
+  CompareAndSwapNNode( Node *c, Node *mem, Node *adr, Node *val, Node *ex) : LoadStoreConditionalNode(c, mem, adr, val, ex) { }
+  virtual int Opcode() const;
+};
+
+//------------------------------GetAndAddINode---------------------------
+class GetAndAddINode : public LoadStoreNode {
+public:
+  GetAndAddINode( Node *c, Node *mem, Node *adr, Node *val, const TypePtr* at ) : LoadStoreNode(c, mem, adr, val, at, TypeInt::INT, 4) { }
+  virtual int Opcode() const;
+};
+
+//------------------------------GetAndAddLNode---------------------------
+class GetAndAddLNode : public LoadStoreNode {
 public:
-  CompareAndSwapNNode( Node *c, Node *mem, Node *adr, Node *val, Node *ex) : LoadStoreNode(c, mem, adr, val, ex) { }
+  GetAndAddLNode( Node *c, Node *mem, Node *adr, Node *val, const TypePtr* at ) : LoadStoreNode(c, mem, adr, val, at, TypeLong::LONG, 4) { }
+  virtual int Opcode() const;
+};
+
+
+//------------------------------GetAndSetINode---------------------------
+class GetAndSetINode : public LoadStoreNode {
+public:
+  GetAndSetINode( Node *c, Node *mem, Node *adr, Node *val, const TypePtr* at ) : LoadStoreNode(c, mem, adr, val, at, TypeInt::INT, 4) { }
+  virtual int Opcode() const;
+};
+
+//------------------------------GetAndSetINode---------------------------
+class GetAndSetLNode : public LoadStoreNode {
+public:
+  GetAndSetLNode( Node *c, Node *mem, Node *adr, Node *val, const TypePtr* at ) : LoadStoreNode(c, mem, adr, val, at, TypeLong::LONG, 4) { }
+  virtual int Opcode() const;
+};
+
+//------------------------------GetAndSetPNode---------------------------
+class GetAndSetPNode : public LoadStoreNode {
+public:
+  GetAndSetPNode( Node *c, Node *mem, Node *adr, Node *val, const TypePtr* at, const Type* t ) : LoadStoreNode(c, mem, adr, val, at, t, 4) { }
+  virtual int Opcode() const;
+};
+
+//------------------------------GetAndSetNNode---------------------------
+class GetAndSetNNode : public LoadStoreNode {
+public:
+  GetAndSetNNode( Node *c, Node *mem, Node *adr, Node *val, const TypePtr* at, const Type* t ) : LoadStoreNode(c, mem, adr, val, at, t, 4) { }
   virtual int Opcode() const;
 };