src/share/vm/ci/ciStreams.hpp

rev 5349 : 8023657: New type profiling points: arguments to call
Summary: x86 interpreter and c1 type profiling for arguments at calls
Reviewed-by:

*** 276,289 ****
  // The class is used to iterate over the elements of a method signature.
  class ciSignatureStream : public StackObj {
  private:
    ciSignature* _sig;
    int    _pos;
  public:
!   ciSignatureStream(ciSignature* signature) {
      _sig = signature;
      _pos = 0;
    }
  
    bool at_return_type() { return _pos == _sig->count(); }
  
    bool is_done() { return _pos > _sig->count(); }
--- 276,292 ----
  // The class is used to iterate over the elements of a method signature.
  class ciSignatureStream : public StackObj {
  private:
    ciSignature* _sig;
    int          _pos;
+   // holder is a method's holder
+   ciKlass*     _holder;
  public:
!   ciSignatureStream(ciSignature* signature, ciKlass* holder = NULL) {
      _sig = signature;
      _pos = 0;
+     _holder = holder;
    }
  
    bool at_return_type() { return _pos == _sig->count(); }
  
    bool is_done() { return _pos > _sig->count(); }
*** 299,308 ****
--- 302,328 ----
        return _sig->return_type();
      } else {
        return _sig->type_at(_pos);
      }
    }
+ 
+   // next klass in the signature
+   ciKlass* next_klass() {
+     ciKlass* sig_k;
+     if (_holder != NULL) {
+       sig_k = _holder;
+       _holder = NULL;
+     } else {
+       while (!type()->is_klass()) {
+         next();
+       }
+       assert(!at_return_type(), "passed end of signature");
+       sig_k = type()->as_klass();
+       next();
+     }
+     return sig_k;
+   }
  };
  
  
  // ciExceptionHandlerStream
  //