Simplify invocation sequence at monomorphic function invocation sites.

src/hydrogen-instructions.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1626 matching lines @@
   HValue* second() { return OperandAt(1); }
 };
 
 
 class HInvokeFunction: public HBinaryCall {
  public:
   HInvokeFunction(HValue* context, HValue* function, int argument_count)
       : HBinaryCall(context, function, argument_count) {
   }
 
+  HInvokeFunction(HValue* context,
+                  HValue* function,
+                  Handle<JSFunction> known_function,
+                  int argument_count)
+      : HBinaryCall(context, function, argument_count),
+        known_function_(known_function) {
+  }
+
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   HValue* context() { return first(); }
   HValue* function() { return second(); }
+  Handle<JSFunction> known_function() { return known_function_; }
 
   DECLARE_CONCRETE_INSTRUCTION(InvokeFunction)
+
+ private:
+  Handle<JSFunction> known_function_;
 };
 
 
 class HCallConstantFunction: public HCall<0> {
  public:
   HCallConstantFunction(Handle<JSFunction> function, int argument_count)
       : HCall<0>(argument_count), function_(function) { }
 
   Handle<JSFunction> function() const { return function_; }
 
@@ skipping 3256 matching lines @@
   DECLARE_CONCRETE_INSTRUCTION(LoadFieldByIndex);
 };
 
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_