src/share/vm/interpreter/invocationCounter.hpp

rev 5190 : 8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
Summary: Implement profiling for c2 jit compilation. Also enable new cppInterpreter features.

*** 97,116 ****
  
    int   get_InvocationLimit() const              { return InterpreterInvocationLimit >> number_of_noncount_bits; }
    int   get_BackwardBranchLimit() const          { return InterpreterBackwardBranchLimit >> number_of_noncount_bits; }
    int   get_ProfileLimit() const                 { return InterpreterProfileLimit >> number_of_noncount_bits; }
  
    // Test counter using scaled limits like the asm interpreter would do rather than doing
    // the shifts to normalize the counter.
! 
!   bool   reached_InvocationLimit() const         { return _counter >= (unsigned int) InterpreterInvocationLimit; }
!   bool   reached_BackwardBranchLimit() const     { return _counter >= (unsigned int) InterpreterBackwardBranchLimit; }
! 
!   // Do this just like asm interpreter does for max speed
    bool   reached_ProfileLimit(InvocationCounter *back_edge_count) const {
!     return (_counter && count_mask) + back_edge_count->_counter >= (unsigned int) InterpreterProfileLimit;
    }
  
    void increment()                               { _counter += count_increment; }
  
  
    // Printing
--- 97,124 ----
  
    int   get_InvocationLimit() const              { return InterpreterInvocationLimit >> number_of_noncount_bits; }
    int   get_BackwardBranchLimit() const          { return InterpreterBackwardBranchLimit >> number_of_noncount_bits; }
    int   get_ProfileLimit() const                 { return InterpreterProfileLimit >> number_of_noncount_bits; }
  
+ #ifdef CC_INTERP
    // Test counter using scaled limits like the asm interpreter would do rather than doing
    // the shifts to normalize the counter.
!   // Checks sum of invocation_counter and backedge_counter as the template interpreter does.
!   bool reached_InvocationLimit(InvocationCounter *back_edge_count) const {
!     return (_counter & count_mask) + (back_edge_count->_counter & count_mask) >=
!            (unsigned int) InterpreterInvocationLimit;
!   }
!   bool reached_BackwardBranchLimit(InvocationCounter *back_edge_count) const {
!     return (_counter & count_mask) + (back_edge_count->_counter & count_mask) >=
!            (unsigned int) InterpreterBackwardBranchLimit;
!   }
!   // Do this just like asm interpreter does for max speed.
    bool reached_ProfileLimit(InvocationCounter *back_edge_count) const {
!     return (_counter & count_mask) + (back_edge_count->_counter & count_mask) >=
!            (unsigned int) InterpreterProfileLimit;
    }
+ #endif // CC_INTERP
  
    void increment()                               { _counter += count_increment; }
  
  
    // Printing