1.1 --- a/src/share/vm/opto/connode.hpp Fri Apr 11 09:56:35 2008 -0400
1.2 +++ b/src/share/vm/opto/connode.hpp Sun Apr 13 17:43:42 2008 -0400
1.3 @@ -78,6 +78,20 @@
1.4 };
1.5
1.6
1.7 +//------------------------------ConNNode--------------------------------------
1.8 +// Simple narrow oop constants
1.9 +class ConNNode : public ConNode {
1.10 +public:
1.11 + ConNNode( const TypeNarrowOop *t ) : ConNode(t) {}
1.12 + virtual int Opcode() const;
1.13 +
1.14 + static ConNNode* make( Compile *C, ciObject* con ) {
1.15 + return new (C, 1) ConNNode( TypeNarrowOop::make_from_constant(con) );
1.16 + }
1.17 +
1.18 +};
1.19 +
1.20 +
1.21 //------------------------------ConLNode---------------------------------------
1.22 // Simple long constants
1.23 class ConLNode : public ConNode {
1.24 @@ -254,6 +268,41 @@
1.25 //virtual Node *Ideal_DU_postCCP( PhaseCCP * );
1.26 };
1.27
1.28 +
1.29 +//------------------------------EncodeP--------------------------------
1.30 +// Encodes an oop pointers into its compressed form
1.31 +// Takes an extra argument which is the real heap base as a long which
1.32 +// may be useful for code generation in the backend.
1.33 +class EncodePNode : public TypeNode {
1.34 + public:
1.35 + EncodePNode(Node* value, const Type* type):
1.36 + TypeNode(type, 2) {
1.37 + init_req(0, NULL);
1.38 + init_req(1, value);
1.39 + }
1.40 + virtual int Opcode() const;
1.41 + virtual Node *Identity( PhaseTransform *phase );
1.42 + virtual uint ideal_reg() const { return Op_RegN; }
1.43 +
1.44 + static Node* encode(PhaseGVN* phase, Node* value);
1.45 +};
1.46 +
1.47 +//------------------------------DecodeN--------------------------------
1.48 +// Converts a narrow oop into a real oop ptr.
1.49 +// Takes an extra argument which is the real heap base as a long which
1.50 +// may be useful for code generation in the backend.
1.51 +class DecodeNNode : public TypeNode {
1.52 + public:
1.53 + DecodeNNode(Node* value, const Type* type):
1.54 + TypeNode(type, 2) {
1.55 + init_req(0, NULL);
1.56 + init_req(1, value);
1.57 + }
1.58 + virtual int Opcode() const;
1.59 + virtual Node *Identity( PhaseTransform *phase );
1.60 + virtual uint ideal_reg() const { return Op_RegP; }
1.61 +};
1.62 +
1.63 //------------------------------Conv2BNode-------------------------------------
1.64 // Convert int/pointer to a Boolean. Map zero to zero, all else to 1.
1.65 class Conv2BNode : public Node {
