src/share/vm/opto/valuetypenode.hpp

*** 47,57 ****
    }
  
    // Get the klass defining the field layout of the value type
    ciValueKlass* value_klass() const { return type()->is_valuetype()->value_klass(); }
    // Initialize the value type by loading its field values from memory
!   void load_values(PhaseGVN& gvn, Node* mem, Node* base, Node* ptr, ciInstanceKlass* holder, int holder_offset = 0);
  
    enum { Control,   // Control input
           Oop,       // Oop of TypeValueTypePtr
           Values     // Nodes corresponding to values of the value type's fields.
                      // Nodes are connected in increasing order of the index of the field
--- 47,59 ----
    }
  
    // Get the klass defining the field layout of the value type
    ciValueKlass* value_klass() const { return type()->is_valuetype()->value_klass(); }
    // Initialize the value type by loading its field values from memory
!   void load(PhaseGVN& gvn, Node* mem, Node* base, Node* ptr, ciInstanceKlass* holder, int holder_offset = 0);
!   // Checks if the value type is loaded from memory and if so returns the oop
!   Node* is_loaded(PhaseGVN* phase, const TypeValueType* t, Node* base = NULL, int holder_offset = 0);
  
    enum { Control,   // Control input
           Oop,       // Oop of TypeValueTypePtr
           Values     // Nodes corresponding to values of the value type's fields.
                      // Nodes are connected in increasing order of the index of the field
*** 71,90 ****
    // Support for control flow merges
    ValueTypeNode* clone_with_phis(PhaseGVN* gvn, Node* region);
    bool  has_phi_inputs(Node* region);
    ValueTypeNode* merge_with(PhaseGVN* gvn, const ValueTypeNode* other, int pnum, bool transform);
  
!   // Store the value type to memory if not yet allocated and returns the oop
!   Node* store_to_memory(GraphKit* kit);
!   // Store the value type to a flattened value type field or array
!   void store(GraphKit* kit, Node* obj, Node* ptr, ciInstanceKlass* holder = NULL, int holder_offset = 0) const;
    // Store the field values to memory
!   void store_values(GraphKit* kit, Node* base, Node* ptr, ciInstanceKlass* holder, int holder_offset = 0) const;
  
    // Get oop for heap allocated value type (may be TypePtr::NULL_PTR)
    Node* get_oop() const    { return in(Oop); }
    void  set_oop(Node* oop) { set_req(Oop, oop); }
  
    // Value type fields
    uint          field_count() const { return req() - Values; }
    Node*         field_value(uint index) const;
    Node*         field_value_by_offset(int offset, bool recursive = false) const;
--- 73,93 ----
    // Support for control flow merges
    ValueTypeNode* clone_with_phis(PhaseGVN* gvn, Node* region);
    bool  has_phi_inputs(Node* region);
    ValueTypeNode* merge_with(PhaseGVN* gvn, const ValueTypeNode* other, int pnum, bool transform);
  
!   // Store the value type as a flattened (headerless) representation
!   void store_flattened(GraphKit* kit, Node* base, Node* ptr, ciInstanceKlass* holder = NULL, int holder_offset = 0) const;
    // Store the field values to memory
!   void store(GraphKit* kit, Node* base, Node* ptr, ciInstanceKlass* holder, int holder_offset = 0) const;
  
    // Get oop for heap allocated value type (may be TypePtr::NULL_PTR)
    Node* get_oop() const    { return in(Oop); }
    void  set_oop(Node* oop) { set_req(Oop, oop); }
+   // Allocates the value type (if not yet allocated) and returns the oop
+   Node* allocate(GraphKit* kit);
+   bool  is_allocated(PhaseGVN* phase) const;
  
    // Value type fields
    uint          field_count() const { return req() - Values; }
    Node*         field_value(uint index) const;
    Node*         field_value_by_offset(int offset, bool recursive = false) const;
*** 96,105 ****
--- 99,110 ----
    void make_scalar_in_safepoints(Compile* C);
    void pass_klass(Node* n, uint pos, const GraphKit& kit);
    uint pass_fields(Node* call, int base_input, const GraphKit& kit, ciValueKlass* base_vk = NULL, int base_offset = 0);
    void replace_call_results(Node* call, Compile* C);
  
+   // Allocation optimizations
+   void remove_redundant_allocations(PhaseIterGVN* igvn, PhaseIdealLoop* phase);
  
    virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);
    virtual int Opcode() const;
  
  #ifndef PRODUCT