42   // Initialization
  43   static void reset()                      PRODUCT_RETURN;
  44 
  45   // Counter info (all info since last reset)
  46   static int    counter_value()            PRODUCT_RETURN0 NOT_PRODUCT({ return _counter_value; });
  47   static double elapsed_time()             PRODUCT_RETURN0; // in seconds
  48   static double frequency()                PRODUCT_RETURN0; // bytecodes/seconds
  49 
  50   // Counter printing
  51   static void   print()                    PRODUCT_RETURN;
  52 };
  53 
  54 
  55 // BytecodeHistogram collects number of executions of bytecodes
  56 
  57 class BytecodeHistogram: AllStatic {
  58  private:
  59   NOT_PRODUCT(static int _counters[Bytecodes::number_of_codes];)   // a counter for each bytecode
  60 
  61   friend class TemplateInterpreterGenerator;
  62   friend class         InterpreterGenerator;
  63   friend class         BytecodeInterpreter;
  64 
  65  public:
  66   // Initialization
  67   static void reset()                       PRODUCT_RETURN; // reset counters
  68 
  69   // Profile printing
  70   static void print(float cutoff = 0.01F)   PRODUCT_RETURN; // cutoff in percent
  71 };
  72 
  73 
  74 // BytecodePairHistogram collects number of executions of bytecode pairs.
  75 // A bytecode pair is any sequence of two consequtive bytecodes.
  76 
  77 class BytecodePairHistogram: AllStatic {
  78  public: // for SparcWorks
  79   enum Constants {
  80     log2_number_of_codes = 8,                         // use a power of 2 for faster addressing
  81     number_of_codes      = 1 << log2_number_of_codes, // must be no less than Bytecodes::number_of_codes
  82     number_of_pairs      = number_of_codes * number_of_codes
  83   };
  84 
  85  private:
  86   NOT_PRODUCT(static int  _index;)                      // new bytecode is shifted in - used to index into _counters
  87   NOT_PRODUCT(static int  _counters[number_of_pairs];)  // a counter for each pair
  88 
  89   friend class TemplateInterpreterGenerator;
  90   friend class         InterpreterGenerator;
  91 
  92  public:
  93   // Initialization
  94   static void reset()                       PRODUCT_RETURN;   // reset counters
  95 
  96   // Profile printing
  97   static void print(float cutoff = 0.01F)   PRODUCT_RETURN;   // cutoff in percent
  98 };
  99 
 100 #endif // SHARE_VM_INTERPRETER_BYTECODEHISTOGRAM_HPP

  42   // Initialization
  43   static void reset()                      PRODUCT_RETURN;
  44 
  45   // Counter info (all info since last reset)
  46   static int    counter_value()            PRODUCT_RETURN0 NOT_PRODUCT({ return _counter_value; });
  47   static double elapsed_time()             PRODUCT_RETURN0; // in seconds
  48   static double frequency()                PRODUCT_RETURN0; // bytecodes/seconds
  49 
  50   // Counter printing
  51   static void   print()                    PRODUCT_RETURN;
  52 };
  53 
  54 
  55 // BytecodeHistogram collects number of executions of bytecodes
  56 
  57 class BytecodeHistogram: AllStatic {
  58  private:
  59   NOT_PRODUCT(static int _counters[Bytecodes::number_of_codes];)   // a counter for each bytecode
  60 
  61   friend class TemplateInterpreterGenerator;

  62   friend class         BytecodeInterpreter;
  63 
  64  public:
  65   // Initialization
  66   static void reset()                       PRODUCT_RETURN; // reset counters
  67 
  68   // Profile printing
  69   static void print(float cutoff = 0.01F)   PRODUCT_RETURN; // cutoff in percent
  70 };
  71 
  72 
  73 // BytecodePairHistogram collects number of executions of bytecode pairs.
  74 // A bytecode pair is any sequence of two consequtive bytecodes.
  75 
  76 class BytecodePairHistogram: AllStatic {
  77  public: // for SparcWorks
  78   enum Constants {
  79     log2_number_of_codes = 8,                         // use a power of 2 for faster addressing
  80     number_of_codes      = 1 << log2_number_of_codes, // must be no less than Bytecodes::number_of_codes
  81     number_of_pairs      = number_of_codes * number_of_codes
  82   };
  83 
  84  private:
  85   NOT_PRODUCT(static int  _index;)                      // new bytecode is shifted in - used to index into _counters
  86   NOT_PRODUCT(static int  _counters[number_of_pairs];)  // a counter for each pair
  87 
  88   friend class TemplateInterpreterGenerator;

  89 
  90  public:
  91   // Initialization
  92   static void reset()                       PRODUCT_RETURN;   // reset counters
  93 
  94   // Profile printing
  95   static void print(float cutoff = 0.01F)   PRODUCT_RETURN;   // cutoff in percent
  96 };
  97 
  98 #endif // SHARE_VM_INTERPRETER_BYTECODEHISTOGRAM_HPP