hotspot/src/share/vm/oops/methodData.hpp

rev 6907 : 8056071: compiler/whitebox/IsMethodCompilableTest.java fails with 'method() is not compilable after 3 iterations'
Summary: Always use MDO if valid and always compile trivial methods with C1 if available.
Reviewed-by: kvn, iveresov

*** 2097,2107 ****
    // Number of loops and blocks is computed when compiling the first
    // time with C1. It is used to determine if method is trivial.
    short             _num_loops;
    short             _num_blocks;
    // Does this method contain anything worth profiling?
!   bool              _would_profile;
  
    // Size of _data array in bytes.  (Excludes header and extra_data fields.)
    int _data_size;
  
    // data index for the area dedicated to parameters. -1 if no
--- 2097,2108 ----
    // Number of loops and blocks is computed when compiling the first
    // time with C1. It is used to determine if method is trivial.
    short             _num_loops;
    short             _num_blocks;
    // Does this method contain anything worth profiling?
!   enum WouldProfile {unknown, no_profile, profile};
!   WouldProfile      _would_profile;
  
    // Size of _data array in bytes.  (Excludes header and extra_data fields.)
    int _data_size;
  
    // data index for the area dedicated to parameters. -1 if no
*** 2266,2277 ****
    static int rtm_state_offset_in_bytes() {
      return offset_of(MethodData, _rtm_state);
    }
  #endif
  
!   void set_would_profile(bool p)              { _would_profile = p;    }
!   bool would_profile() const                  { return _would_profile; }
  
    int num_loops() const                       { return _num_loops;  }
    void set_num_loops(int n)                   { _num_loops = n;     }
    int num_blocks() const                      { return _num_blocks; }
    void set_num_blocks(int n)                  { _num_blocks = n;    }
--- 2267,2278 ----
    static int rtm_state_offset_in_bytes() {
      return offset_of(MethodData, _rtm_state);
    }
  #endif
  
!   void set_would_profile(bool p)              { _would_profile = p ? profile : no_profile; }
!   bool would_profile() const                  { return _would_profile != no_profile; }
  
    int num_loops() const                       { return _num_loops;  }
    void set_num_loops(int n)                   { _num_loops = n;     }
    int num_blocks() const                      { return _num_blocks; }
    void set_num_blocks(int n)                  { _num_blocks = n;    }