Inline simple setter calls.

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 1385 matching lines @@
   bool is_function_entry() { return type_ == kFunctionEntry; }
   bool is_backwards_branch() { return type_ == kBackwardsBranch; }
 
   DECLARE_CONCRETE_INSTRUCTION(StackCheck)
 
  private:
   Type type_;
 };
 
 
+enum InliningKind {
+  NORMAL_RETURN,          // Normal function/method call and return.
+  DROP_EXTRA_ON_RETURN,   // Drop an extra value from the environment on return.
+  CONSTRUCT_CALL_RETURN,  // Either use allocated receiver or return value.
+  SETTER_CALL_RETURN      // Use the RHS of the assignment as the return value.
+};
+
+
 class HEnterInlined: public HTemplateInstruction<0> {
  public:
   HEnterInlined(Handle<JSFunction> closure,
                 int arguments_count,
                 FunctionLiteral* function,
                 CallKind call_kind,
-                bool is_construct,
+                InliningKind inlining_kind,
                 Variable* arguments_var,
                 ZoneList<HValue*>* arguments_values)
       : closure_(closure),
         arguments_count_(arguments_count),
         function_(function),
         call_kind_(call_kind),
-        is_construct_(is_construct),
+        inlining_kind_(inlining_kind),
         arguments_var_(arguments_var),
         arguments_values_(arguments_values) {
   }
 
   virtual void PrintDataTo(StringStream* stream);
 
   Handle<JSFunction> closure() const { return closure_; }
   int arguments_count() const { return arguments_count_; }
   FunctionLiteral* function() const { return function_; }
   CallKind call_kind() const { return call_kind_; }
-  bool is_construct() const { return is_construct_; }
+  InliningKind inlining_kind() const { return inlining_kind_; }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
   }
 
   Variable* arguments_var() { return arguments_var_; }
   ZoneList<HValue*>* arguments_values() { return arguments_values_; }
 
   DECLARE_CONCRETE_INSTRUCTION(EnterInlined)
 
  private:
   Handle<JSFunction> closure_;
   int arguments_count_;
   FunctionLiteral* function_;
   CallKind call_kind_;
-  bool is_construct_;
+  InliningKind inlining_kind_;
   Variable* arguments_var_;
   ZoneList<HValue*>* arguments_values_;
 };
 
 
 class HLeaveInlined: public HTemplateInstruction<0> {
  public:
   explicit HLeaveInlined(bool arguments_pushed)
       : arguments_pushed_(arguments_pushed) { }
 
@@ skipping 3783 matching lines @@
   DECLARE_CONCRETE_INSTRUCTION(LoadFieldByIndex);
 };
 
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_