src/share/vm/ci/ciMethodData.hpp

rev 5463 : 8026251: New type profiling points: parameters to methods
Summary: x86 interpreter and c1 type profiling for parameters on method entries
Reviewed-by:
rev 5464 : 8024070: C2 needs some form of type speculation
Summary: record unused type profile information with type system, propagate and use it.
Reviewed-by:

*** 98,107 ****
--- 98,111 ----
  
    ciKlass* valid_type(int i) const {
      return valid_ciklass(type(i));
    }
  
+   bool maybe_null(int i) const {
+     return was_null_seen(type(i));
+   }
+ 
  #ifndef PRODUCT
    void print_data_on(outputStream* st) const;
  #endif
  };
  
*** 111,120 ****
--- 115,128 ----
  
    ciKlass* valid_type() const {
      return valid_ciklass(type());
    }
  
+   bool maybe_null() const {
+     return was_null_seen(type());
+   }
+ 
  #ifndef PRODUCT
    void print_data_on(outputStream* st) const;
  #endif
  };
  
*** 152,161 ****
--- 160,177 ----
    ciKlass* valid_return_type() const {
      assert(has_return(), "no ret type profiling data");
      return ret()->valid_type();
    }
  
+   bool argument_maybe_null(int i) const {
+     return args()->maybe_null(i);
+   }
+ 
+   bool return_maybe_null() const {
+     return ret()->maybe_null();
+   }
+ 
  #ifndef PRODUCT
    void print_data_on(outputStream* st) const;
  #endif
  };
  
*** 258,267 ****
--- 274,291 ----
    ciKlass* valid_return_type() const {
      assert(has_return(), "no ret type profiling data");
      return ret()->valid_type();
    }
  
+   bool argument_maybe_null(int i) const {
+     return args()->maybe_null(i);
+   }
+ 
+   bool return_maybe_null() const {
+     return ret()->maybe_null();
+   }
+ 
  #ifndef PRODUCT
    void print_data_on(outputStream* st) const;
  #endif
  };
  
*** 303,312 ****
--- 327,340 ----
  
    ciKlass* valid_parameter_type(int i) const {
      return parameters()->valid_type(i);
    }
  
+   bool parameter_maybe_null(int i) const {
+     return parameters()->maybe_null(i);
+   }
+ 
  #ifndef PRODUCT
    void print_data_on(outputStream* st) const;
  #endif
  };