src/share/vm/ci/ciMethodData.hpp

rev 5462 : 8026251: New type profiling points: parameters to methods
Summary: x86 interpreter and c1 type profiling for parameters on method entries
Reviewed-by:

*** 41,50 ****
--- 41,51 ----
  class ciArrayData;
  class ciMultiBranchData;
  class ciArgInfoData;
  class ciCallTypeData;
  class ciVirtualCallTypeData;
+ class ciParametersTypeData;
  
  typedef ProfileData ciProfileData;
  
  class ciBitData : public BitData {
  public:
*** 122,132 ****
    ciCallTypeData(DataLayout* layout) : CallTypeData(layout) {}
  
    ciTypeStackSlotEntries* args() const { return (ciTypeStackSlotEntries*)CallTypeData::args(); }
    ciReturnTypeEntry* ret() const { return (ciReturnTypeEntry*)CallTypeData::ret(); }
  
!   void translate_type_data_from(const ProfileData* data) {
      if (has_arguments()) {
        args()->translate_type_data_from(data->as_CallTypeData()->args());
      }
      if (has_return()) {
        ret()->translate_type_data_from(data->as_CallTypeData()->ret());
--- 123,133 ----
    ciCallTypeData(DataLayout* layout) : CallTypeData(layout) {}
  
    ciTypeStackSlotEntries* args() const { return (ciTypeStackSlotEntries*)CallTypeData::args(); }
    ciReturnTypeEntry* ret() const { return (ciReturnTypeEntry*)CallTypeData::ret(); }
  
!   void translate_from(const ProfileData* data) {
      if (has_arguments()) {
        args()->translate_type_data_from(data->as_CallTypeData()->args());
      }
      if (has_return()) {
        ret()->translate_type_data_from(data->as_CallTypeData()->ret());
*** 288,297 ****
--- 289,317 ----
  class ciArgInfoData : public ArgInfoData {
  public:
    ciArgInfoData(DataLayout* layout) : ArgInfoData(layout) {};
  };
  
+ class ciParametersTypeData : public ParametersTypeData {
+ public:
+   ciParametersTypeData(DataLayout* layout) : ParametersTypeData(layout) {}
+ 
+   virtual void translate_from(const ProfileData* data) {
+     parameters()->translate_type_data_from(data->as_ParametersTypeData()->parameters());
+   }
+ 
+   ciTypeStackSlotEntries* parameters() const { return (ciTypeStackSlotEntries*)ParametersTypeData::parameters(); }
+ 
+   ciKlass* valid_parameter_type(int i) const {
+     return parameters()->valid_type(i);
+   }
+ 
+ #ifndef PRODUCT
+   void print_data_on(outputStream* st) const;
+ #endif
+ };
+ 
  // ciMethodData
  //
  // This class represents a MethodData* in the HotSpot virtual
  // machine.
  
*** 333,342 ****
--- 353,366 ----
    int _backedge_counter;
  
    // Coherent snapshot of original header.
    MethodData _orig;
  
+   // Dedicated area dedicated to parameters. Null if no parameter
+   // profiling for this method.
+   DataLayout* _parameters;
+ 
    ciMethodData(MethodData* md);
    ciMethodData();
  
    // Accessors
    int data_size() const { return _data_size; }
*** 401,410 ****
--- 425,435 ----
    // Again, this is used to determine if a method is trivial.
    void set_compilation_stats(short loops, short blocks);
    // If the compiler finds a profiled type that is known statically
    // for sure, set it in the MethodData
    void set_argument_type(int bci, int i, ciKlass* k);
+   void set_parameter_type(int i, ciKlass* k);
    void set_return_type(int bci, ciKlass* k);
  
    void load_data();
  
    // Convert a dp (data pointer) to a di (data index).
*** 465,474 ****
--- 490,503 ----
    bool is_arg_local(int i) const;
    bool is_arg_stack(int i) const;
    bool is_arg_returned(int i) const;
    uint arg_modified(int arg) const;
  
+   ciParametersTypeData* parameters_type_data() const {
+     return _parameters != NULL ? new ciParametersTypeData(_parameters) : NULL;
+   }
+ 
    // Code generation helper
    ByteSize offset_of_slot(ciProfileData* data, ByteSize slot_offset_in_data);
    int      byte_offset_of_slot(ciProfileData* data, ByteSize slot_offset_in_data) { return in_bytes(offset_of_slot(data, slot_offset_in_data)); }
  
  #ifndef PRODUCT