Improve instruction creating/adding shorthand in HGraphBuilder

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 1290 matching lines @@
   int flags_;
   GVNFlagSet gvn_flags_;
 
  private:
   virtual bool IsDeletable() const { return false; }
 
   DISALLOW_COPY_AND_ASSIGN(HValue);
 };
 
 
+#define DECLARE_INSTRUCTION_FACTORY_P0(I)                                      \
+  static I* New(Zone* zone, HValue* context) {                                 \
+    return new(zone) I();                                                      \
+}
+
+#define DECLARE_INSTRUCTION_FACTORY_P1(I, P1)                                  \
+  static I* New(Zone* zone, HValue* context, P1 p1) {                          \
+    return new(zone) I(p1);                                                    \
+  }
+
+#define DECLARE_INSTRUCTION_FACTORY_P2(I, P1, P2)                              \
+  static I* New(Zone* zone, HValue* context, P1 p1, P2 p2) {                   \
+    return new(zone) I(p1, p2);                                                \
+  }
+
+#define DECLARE_INSTRUCTION_FACTORY_P3(I, P1, P2, P3)                          \
+  static I* New(Zone* zone, HValue* context, P1 p1, P2 p2, P3 p3) {            \
+    return new(zone) I(p1, p2, p3);                                            \
+  }
+
+#define DECLARE_INSTRUCTION_FACTORY_P4(I, P1, P2, P3, P4)                      \
+  static I* New(Zone* zone,                                                    \
+                HValue* context,                                               \
+                P1 p1,                                                         \
+                P2 p2,                                                         \
+                P3 p3,                                                         \
+                P4 p4) {                                                       \
+    return new(zone) I(p1, p2, p3, p4);                                        \
+  }
+
+#define DECLARE_INSTRUCTION_FACTORY_P5(I, P1, P2, P3, P4, P5)                  \
+  static I* New(Zone* zone,                                                    \
+                HValue* context,                                               \
+                P1 p1,                                                         \
+                P2 p2,                                                         \
+                P3 p3,                                                         \
+                P4 p4,                                                         \
+                P5 p5) {                                                       \
+    return new(zone) I(p1, p2, p3, p4, p5);                                    \
+  }
+
+
 class HInstruction: public HValue {
  public:
   HInstruction* next() const { return next_; }
   HInstruction* previous() const { return previous_; }
 
   virtual void PrintTo(StringStream* stream);
   virtual void PrintDataTo(StringStream* stream);
 
   bool IsLinked() const { return block() != NULL; }
   void Unlink();
@@ skipping 192 matching lines @@
     SetOperandAt(0, constrained_value);
     SetOperandAt(1, related_value);
   }
 
   NumericRelation relation_;
 };
 
 
 class HDeoptimize: public HTemplateInstruction<0> {
  public:
-  explicit HDeoptimize(Deoptimizer::BailoutType type) : type_(type) {}
+  DECLARE_INSTRUCTION_FACTORY_P1(HDeoptimize, Deoptimizer::BailoutType);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
   }
 
   Deoptimizer::BailoutType type() { return type_; }
 
   DECLARE_CONCRETE_INSTRUCTION(Deoptimize)
 
  private:
+  explicit HDeoptimize(Deoptimizer::BailoutType type) : type_(type) {}
+
   Deoptimizer::BailoutType type_;
 };
 
 
 // Inserts an int3/stop break instruction for debugging purposes.
 class HDebugBreak: public HTemplateInstruction<0> {
  public:
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
   }
@@ skipping 80 matching lines @@
     return Representation::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CompareMap)
 
  private:
   Handle<Map> map_;
 };
 
 
+class HContext: public HTemplateInstruction<0> {
+ public:
+  static HContext* New(Zone* zone) {
+    return new(zone) HContext();
+  }
+
+  virtual Representation RequiredInputRepresentation(int index) {
+    return Representation::None();
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(Context)
+
+ protected:
+  virtual bool DataEquals(HValue* other) { return true; }
+
+ private:
+  HContext() {
+    set_representation(Representation::Tagged());
+    SetFlag(kUseGVN);
+  }
+
+  virtual bool IsDeletable() const { return true; }
+};
+
+
 class HReturn: public HTemplateControlInstruction<0, 3> {
  public:
-  HReturn(HValue* value, HValue* context, HValue* parameter_count) {
-    SetOperandAt(0, value);
-    SetOperandAt(1, context);
-    SetOperandAt(2, parameter_count);
+  static HInstruction* New(Zone* zone,
+                           HValue* context,
+                           HValue* value,
+                           HValue* parameter_count) {
+    return new(zone) HReturn(value, context, parameter_count);
+  }
+
+  static HInstruction* New(Zone* zone,
+                           HValue* context,
+                           HValue* value) {
+    return new(zone) HReturn(value, context, 0);
   }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   virtual void PrintDataTo(StringStream* stream);
 
   HValue* value() { return OperandAt(0); }
   HValue* context() { return OperandAt(1); }
   HValue* parameter_count() { return OperandAt(2); }
 
   DECLARE_CONCRETE_INSTRUCTION(Return)
+
+ private:
+  HReturn(HValue* value, HValue* context, HValue* parameter_count) {
+    SetOperandAt(0, value);
+    SetOperandAt(1, context);
+    SetOperandAt(2, parameter_count);
+  }
 };
 
 
 class HAbnormalExit: public HTemplateControlInstruction<0, 0> {
  public:
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(AbnormalExit)
@@ skipping 11 matching lines @@
     return reinterpret_cast<HUnaryOperation*>(value);
   }
 
   HValue* value() const { return OperandAt(0); }
   virtual void PrintDataTo(StringStream* stream);
 };
 
 
 class HThrow: public HTemplateInstruction<2> {
  public:
-  HThrow(HValue* context, HValue* value) {
-    SetOperandAt(0, context);
-    SetOperandAt(1, value);
-    SetAllSideEffects();
+  static HThrow* New(Zone* zone,
+                     HValue* context,
+                     HValue* value) {
+    return new(zone) HThrow(context, value);
   }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   HValue* context() { return OperandAt(0); }
   HValue* value() { return OperandAt(1); }
 
   DECLARE_CONCRETE_INSTRUCTION(Throw)
+
+ private:
+  HThrow(HValue* context, HValue* value) {
+    SetOperandAt(0, context);
+    SetOperandAt(1, value);
+    SetAllSideEffects();
+  }
 };
 
 
 class HUseConst: public HUnaryOperation {
  public:
-  explicit HUseConst(HValue* old_value) : HUnaryOperation(old_value) { }
+  DECLARE_INSTRUCTION_FACTORY_P1(HUseConst, HValue*);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(UseConst)
+
+ private:
+    explicit HUseConst(HValue* old_value) : HUnaryOperation(old_value) { }
 };
 
 
 class HForceRepresentation: public HTemplateInstruction<1> {
  public:
-  HForceRepresentation(HValue* value, Representation required_representation) {
-    SetOperandAt(0, value);
-    set_representation(required_representation);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P2(HForceRepresentation, HValue*, Representation);
 
   HValue* value() { return OperandAt(0); }
 
   virtual HValue* EnsureAndPropagateNotMinusZero(BitVector* visited);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return representation();  // Same as the output representation.
   }
 
   virtual void PrintDataTo(StringStream* stream);
 
   DECLARE_CONCRETE_INSTRUCTION(ForceRepresentation)
+
+ private:
+  HForceRepresentation(HValue* value, Representation required_representation) {
+    SetOperandAt(0, value);
+    set_representation(required_representation);
+  }
 };
 
 
 class HChange: public HUnaryOperation {
  public:
   HChange(HValue* value,
           Representation to,
           bool is_truncating_to_smi,
           bool is_truncating_to_int32,
           bool allow_undefined_as_nan)
@@ skipping 41 matching lines @@
 
  private:
   virtual bool IsDeletable() const {
     return !from().IsTagged() || value()->type().IsSmi();
   }
 };
 
 
 class HClampToUint8: public HUnaryOperation {
  public:
-  explicit HClampToUint8(HValue* value)
-      : HUnaryOperation(value) {
-    set_representation(Representation::Integer32());
-    SetFlag(kAllowUndefinedAsNaN);
-    SetFlag(kUseGVN);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P1(HClampToUint8, HValue*);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(ClampToUint8)
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
 
  private:
+  explicit HClampToUint8(HValue* value)
+      : HUnaryOperation(value) {
+    set_representation(Representation::Integer32());
+    SetFlag(kAllowUndefinedAsNaN);
+    SetFlag(kUseGVN);
+  }
+
   virtual bool IsDeletable() const { return true; }
 };
 
 
 enum RemovableSimulate {
   REMOVABLE_SIMULATE,
   FIXED_SIMULATE
 };
 
 
@@ skipping 136 matching lines @@
 };
 
 
 class HStackCheck: public HTemplateInstruction<1> {
  public:
   enum Type {
     kFunctionEntry,
     kBackwardsBranch
   };
 
-  HStackCheck(HValue* context, Type type) : type_(type) {
-    SetOperandAt(0, context);
-    SetGVNFlag(kChangesNewSpacePromotion);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P2(HStackCheck, HValue*, Type);
 
   HValue* context() { return OperandAt(0); }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   void Eliminate() {
     // The stack check eliminator might try to eliminate the same stack
     // check instruction multiple times.
     if (IsLinked()) {
       DeleteAndReplaceWith(NULL);
     }
   }
 
   bool is_function_entry() { return type_ == kFunctionEntry; }
   bool is_backwards_branch() { return type_ == kBackwardsBranch; }
 
   DECLARE_CONCRETE_INSTRUCTION(StackCheck)
 
  private:
+  HStackCheck(HValue* context, Type type) : type_(type) {
+    SetOperandAt(0, context);
+    SetGVNFlag(kChangesNewSpacePromotion);
+  }
+
   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.
   GETTER_CALL_RETURN,     // Returning from a getter, need to restore context.
   SETTER_CALL_RETURN      // Use the RHS of the assignment as the return value.
 };
 
 
 class HArgumentsObject;
 
 
 class HEnterInlined: public HTemplateInstruction<0> {
  public:
-  HEnterInlined(Handle<JSFunction> closure,
-                int arguments_count,
-                FunctionLiteral* function,
-                InliningKind inlining_kind,
-                Variable* arguments_var,
-                HArgumentsObject* arguments_object,
-                bool undefined_receiver,
-                Zone* zone)
-      : closure_(closure),
-        arguments_count_(arguments_count),
-        arguments_pushed_(false),
-        function_(function),
-        inlining_kind_(inlining_kind),
-        arguments_var_(arguments_var),
-        arguments_object_(arguments_object),
-        undefined_receiver_(undefined_receiver),
-        return_targets_(2, zone) {
+  static HEnterInlined* New(Zone* zone,
+                            HValue* context,
+                            Handle<JSFunction> closure,
+                            int arguments_count,
+                            FunctionLiteral* function,
+                            InliningKind inlining_kind,
+                            Variable* arguments_var,
+                            HArgumentsObject* arguments_object,
+                            bool undefined_receiver) {
+    return new(zone) HEnterInlined(closure, arguments_count, function,
+                                   inlining_kind, arguments_var,
+                                   arguments_object, undefined_receiver, zone);
   }
 
   void RegisterReturnTarget(HBasicBlock* return_target, Zone* zone);
   ZoneList<HBasicBlock*>* return_targets() { return &return_targets_; }
 
   virtual void PrintDataTo(StringStream* stream);
 
   Handle<JSFunction> closure() const { return closure_; }
   int arguments_count() const { return arguments_count_; }
   bool arguments_pushed() const { return arguments_pushed_; }
   void set_arguments_pushed() { arguments_pushed_ = true; }
   FunctionLiteral* function() const { return function_; }
   InliningKind inlining_kind() const { return inlining_kind_; }
   bool undefined_receiver() const { return undefined_receiver_; }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
   }
 
   Variable* arguments_var() { return arguments_var_; }
   HArgumentsObject* arguments_object() { return arguments_object_; }
 
   DECLARE_CONCRETE_INSTRUCTION(EnterInlined)
 
  private:
+  HEnterInlined(Handle<JSFunction> closure,
+                int arguments_count,
+                FunctionLiteral* function,
+                InliningKind inlining_kind,
+                Variable* arguments_var,
+                HArgumentsObject* arguments_object,
+                bool undefined_receiver,
+                Zone* zone)
+      : closure_(closure),
+        arguments_count_(arguments_count),
+        arguments_pushed_(false),
+        function_(function),
+        inlining_kind_(inlining_kind),
+        arguments_var_(arguments_var),
+        arguments_object_(arguments_object),
+        undefined_receiver_(undefined_receiver),
+        return_targets_(2, zone) {
+  }
+
   Handle<JSFunction> closure_;
   int arguments_count_;
   bool arguments_pushed_;
   FunctionLiteral* function_;
   InliningKind inlining_kind_;
   Variable* arguments_var_;
   HArgumentsObject* arguments_object_;
   bool undefined_receiver_;
   ZoneList<HBasicBlock*> return_targets_;
 };
 
 
 class HLeaveInlined: public HTemplateInstruction<0> {
  public:
   HLeaveInlined() { }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(LeaveInlined)
 };
 
 
 class HPushArgument: public HUnaryOperation {
  public:
-  explicit HPushArgument(HValue* value) : HUnaryOperation(value) {
-    set_representation(Representation::Tagged());
-  }
+  DECLARE_INSTRUCTION_FACTORY_P1(HPushArgument, HValue*);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   HValue* argument() { return OperandAt(0); }
 
   DECLARE_CONCRETE_INSTRUCTION(PushArgument)
+
+ private:
+  explicit HPushArgument(HValue* value) : HUnaryOperation(value) {
+    set_representation(Representation::Tagged());
+  }
 };
 
 
 class HThisFunction: public HTemplateInstruction<0> {
  public:
   HThisFunction() {
     set_representation(Representation::Tagged());
     SetFlag(kUseGVN);
   }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(ThisFunction)
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
 
  private:
   virtual bool IsDeletable() const { return true; }
 };
 
 
-class HContext: public HTemplateInstruction<0> {
- public:
-  HContext() {
-    set_representation(Representation::Tagged());
-    SetFlag(kUseGVN);
-  }
-
-  virtual Representation RequiredInputRepresentation(int index) {
-    return Representation::None();
-  }
-
-  DECLARE_CONCRETE_INSTRUCTION(Context)
-
- protected:
-  virtual bool DataEquals(HValue* other) { return true; }
-
- private:
-  virtual bool IsDeletable() const { return true; }
-};
-
-
 class HOuterContext: public HUnaryOperation {
  public:
-  explicit HOuterContext(HValue* inner) : HUnaryOperation(inner) {
-    set_representation(Representation::Tagged());
-    SetFlag(kUseGVN);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P1(HOuterContext, HValue*);
 
   DECLARE_CONCRETE_INSTRUCTION(OuterContext);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
 
  private:
+  explicit HOuterContext(HValue* inner) : HUnaryOperation(inner) {
+    set_representation(Representation::Tagged());
+    SetFlag(kUseGVN);
+  }
+
   virtual bool IsDeletable() const { return true; }
 };
 
 
 class HDeclareGlobals: public HUnaryOperation {
  public:
   HDeclareGlobals(HValue* context,
                   Handle<FixedArray> pairs,
                   int flags)
       : HUnaryOperation(context),
         pairs_(pairs),
         flags_(flags) {
     set_representation(Representation::Tagged());
     SetAllSideEffects();
   }
 
+  static HDeclareGlobals* New(Zone* zone,
+                              HValue* context,
+                              Handle<FixedArray> pairs,
+                              int flags) {
+    return new(zone) HDeclareGlobals(context, pairs, flags);
+  }
+
   HValue* context() { return OperandAt(0); }
   Handle<FixedArray> pairs() const { return pairs_; }
   int flags() const { return flags_; }
 
   DECLARE_CONCRETE_INSTRUCTION(DeclareGlobals)
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
+
  private:
   Handle<FixedArray> pairs_;
   int flags_;
 };
 
 
 class HGlobalObject: public HUnaryOperation {
  public:
   explicit HGlobalObject(HValue* context) : HUnaryOperation(context) {
     set_representation(Representation::Tagged());
     SetFlag(kUseGVN);
   }
 
+  static HGlobalObject* New(Zone* zone, HValue* context) {
+    return new(zone) HGlobalObject(context);
+  }
+
   DECLARE_CONCRETE_INSTRUCTION(GlobalObject)
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
 
  private:
   virtual bool IsDeletable() const { return true; }
 };
 
 
 class HGlobalReceiver: public HUnaryOperation {
  public:
-  explicit HGlobalReceiver(HValue* global_object)
-      : HUnaryOperation(global_object) {
-    set_representation(Representation::Tagged());
-    SetFlag(kUseGVN);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P1(HGlobalReceiver, HValue*);
 
   DECLARE_CONCRETE_INSTRUCTION(GlobalReceiver)
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
 
  private:
+  explicit HGlobalReceiver(HValue* global_object)
+      : HUnaryOperation(global_object) {
+    set_representation(Representation::Tagged());
+    SetFlag(kUseGVN);
+  }
+
   virtual bool IsDeletable() const { return true; }
 };
 
 
 template <int V>
 class HCall: public HTemplateInstruction<V> {
  public:
   // The argument count includes the receiver.
   explicit HCall<V>(int argument_count) : argument_count_(argument_count) {
     this->set_representation(Representation::Tagged());
@@ skipping 46 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) {
   }
 
+  static HInvokeFunction* New(Zone* zone,
+                              HValue* context,
+                              HValue* function,
+                              int argument_count) {
+    return new(zone) HInvokeFunction(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) {
     formal_parameter_count_ = known_function.is_null()
         ? 0 : known_function->shared()->formal_parameter_count();
   }
 
+  static HInvokeFunction* New(Zone* zone,
+                              HValue* context,
+                              HValue* function,
+                              Handle<JSFunction> known_function,
+                              int argument_count) {
+    return new(zone) HInvokeFunction(context, function,
+                                     known_function, argument_count);
+  }
+
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   HValue* context() { return first(); }
   HValue* function() { return second(); }
   Handle<JSFunction> known_function() { return known_function_; }
   int formal_parameter_count() const { return formal_parameter_count_; }
 
   DECLARE_CONCRETE_INSTRUCTION(InvokeFunction)
@@ skipping 71 matching lines @@
   Handle<String> name_;
 };
 
 
 class HCallFunction: public HBinaryCall {
  public:
   HCallFunction(HValue* context, HValue* function, int argument_count)
       : HBinaryCall(context, function, argument_count) {
   }
 
+  static HCallFunction* New(Zone* zone,
+                            HValue* context,
+                            HValue* function,
+                            int argument_count) {
+    return new(zone) HCallFunction(context, function, argument_count);
+  }
+
   HValue* context() { return first(); }
   HValue* function() { return second(); }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CallFunction)
 };
 
 
 class HCallGlobal: public HUnaryCall {
  public:
   HCallGlobal(HValue* context, Handle<String> name, int argument_count)
       : HUnaryCall(context, argument_count), name_(name) {
   }
 
+  static HCallGlobal* New(Zone* zone,
+                          HValue* context,
+                          Handle<String> name,
+                          int argument_count) {
+    return new(zone) HCallGlobal(context, name, argument_count);
+  }
+
   virtual void PrintDataTo(StringStream* stream);
 
   HValue* context() { return value(); }
   Handle<String> name() const { return name_; }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CallGlobal)
@@ skipping 63 matching lines @@
   DECLARE_CONCRETE_INSTRUCTION(CallNewArray)
 
  private:
   ElementsKind elements_kind_;
   Handle<Cell> type_cell_;
 };
 
 
 class HCallRuntime: public HCall<1> {
  public:
-  HCallRuntime(HValue* context,
-               Handle<String> name,
-               const Runtime::Function* c_function,
-               int argument_count)
-      : HCall<1>(argument_count), c_function_(c_function), name_(name) {
-    SetOperandAt(0, context);
+  static HCallRuntime* New(Zone* zone,
+                           HValue* context,
+                           Handle<String> name,
+                           const Runtime::Function* c_function,
+                           int argument_count) {
+    return new(zone) HCallRuntime(context, name, c_function, argument_count);
   }
 
   virtual void PrintDataTo(StringStream* stream);
 
   HValue* context() { return OperandAt(0); }
   const Runtime::Function* function() const { return c_function_; }
   Handle<String> name() const { return name_; }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CallRuntime)
 
  private:
+  HCallRuntime(HValue* context,
+               Handle<String> name,
+               const Runtime::Function* c_function,
+               int argument_count)
+      : HCall<1>(argument_count), c_function_(c_function), name_(name) {
+    SetOperandAt(0, context);
+  }
+
   const Runtime::Function* c_function_;
   Handle<String> name_;
 };
 
 
 class HMapEnumLength: public HUnaryOperation {
  public:
-  explicit HMapEnumLength(HValue* value)
-      : HUnaryOperation(value, HType::Smi()) {
-    set_representation(Representation::Smi());
-    SetFlag(kUseGVN);
-    SetGVNFlag(kDependsOnMaps);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P1(HMapEnumLength, HValue*);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(MapEnumLength)
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
 
  private:
+  explicit HMapEnumLength(HValue* value)
+      : HUnaryOperation(value, HType::Smi()) {
+    set_representation(Representation::Smi());
+    SetFlag(kUseGVN);
+    SetGVNFlag(kDependsOnMaps);
+  }
+
   virtual bool IsDeletable() const { return true; }
 };
 
 
 class HElementsKind: public HUnaryOperation {
  public:
   explicit HElementsKind(HValue* value) : HUnaryOperation(value) {
     set_representation(Representation::Integer32());
     SetFlag(kUseGVN);
     SetGVNFlag(kDependsOnElementsKind);
   }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(ElementsKind)
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
 
  private:
   virtual bool IsDeletable() const { return true; }
 };
 
 
 class HBitNot: public HUnaryOperation {
  public:
-  explicit HBitNot(HValue* value)
-      : HUnaryOperation(value, HType::TaggedNumber()) {
-    set_representation(Representation::Integer32());
-    SetFlag(kUseGVN);
-    SetFlag(kTruncatingToInt32);
-    SetFlag(kAllowUndefinedAsNaN);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P1(HBitNot, HValue*);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Integer32();
   }
   virtual Representation observed_input_representation(int index) {
     return Representation::Integer32();
   }
 
   virtual HValue* Canonicalize();
 
   DECLARE_CONCRETE_INSTRUCTION(BitNot)
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
 
  private:
+  explicit HBitNot(HValue* value)
+      : HUnaryOperation(value, HType::TaggedNumber()) {
+    set_representation(Representation::Integer32());
+    SetFlag(kUseGVN);
+    SetFlag(kTruncatingToInt32);
+    SetFlag(kAllowUndefinedAsNaN);
+  }
+
   virtual bool IsDeletable() const { return true; }
 };
 
 
 class HUnaryMathOperation: public HTemplateInstruction<2> {
  public:
   static HInstruction* New(Zone* zone,
                            HValue* context,
                            HValue* value,
                            BuiltinFunctionId op);
@@ skipping 84 matching lines @@
   }
 
   virtual bool IsDeletable() const { return true; }
 
   BuiltinFunctionId op_;
 };
 
 
 class HLoadExternalArrayPointer: public HUnaryOperation {
  public:
-  explicit HLoadExternalArrayPointer(HValue* value)
-      : HUnaryOperation(value) {
-    set_representation(Representation::External());
-    // The result of this instruction is idempotent as long as its inputs don't
-    // change.  The external array of a specialized array elements object cannot
-    // change once set, so it's no necessary to introduce any additional
-    // dependencies on top of the inputs.
-    SetFlag(kUseGVN);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P1(HLoadExternalArrayPointer, HValue*);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   virtual HType CalculateInferredType() {
     return HType::None();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(LoadExternalArrayPointer)
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
 
  private:
+  explicit HLoadExternalArrayPointer(HValue* value)
+      : HUnaryOperation(value) {
+    set_representation(Representation::External());
+    // The result of this instruction is idempotent as long as its inputs don't
+    // change.  The external array of a specialized array elements object cannot
+    // change once set, so it's no necessary to introduce any additional
+    // dependencies on top of the inputs.
+    SetFlag(kUseGVN);
+  }
+
   virtual bool IsDeletable() const { return true; }
 };
 
 
 class HCheckMaps: public HTemplateInstruction<2> {
  public:
-  static HCheckMaps* New(HValue* value, Handle<Map> map, Zone* zone,
-                         CompilationInfo* info, HValue *typecheck = NULL);
-  static HCheckMaps* New(HValue* value, SmallMapList* maps, Zone* zone,
+  static HCheckMaps* New(Zone* zone, HValue* context, HValue* value,
+                         Handle<Map> map, CompilationInfo* info,
+                         HValue *typecheck = NULL);
+  static HCheckMaps* New(Zone* zone, HValue* context,
+                         HValue* value, SmallMapList* maps,
                          HValue *typecheck = NULL) {
     HCheckMaps* check_map = new(zone) HCheckMaps(value, zone, typecheck);
     for (int i = 0; i < maps->length(); i++) {
       check_map->map_set_.Add(maps->at(i), zone);
     }
     check_map->map_set_.Sort();
     return check_map;
   }
 
   bool CanOmitMapChecks() { return omit_; }
@@ skipping 55 matching lines @@
   }
 
   bool omit_;
   SmallMapList map_set_;
   ZoneList<UniqueValueId> map_unique_ids_;
 };
 
 
 class HCheckFunction: public HUnaryOperation {
  public:
-  HCheckFunction(HValue* value, Handle<JSFunction> function)
-      : HUnaryOperation(value, value->type()),
-        target_(function), target_unique_id_() {
-    set_representation(Representation::Tagged());
-    SetFlag(kUseGVN);
-    target_in_new_space_ = Isolate::Current()->heap()->InNewSpace(*function);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P2(HCheckFunction, HValue*, Handle<JSFunction>);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
   virtual void PrintDataTo(StringStream* stream);
 
   virtual HValue* Canonicalize();
 
 #ifdef DEBUG
   virtual void Verify();
 #endif
 
   virtual void FinalizeUniqueValueId() {
     target_unique_id_ = UniqueValueId(target_);
   }
 
   Handle<JSFunction> target() const { return target_; }
   bool target_in_new_space() const { return target_in_new_space_; }
 
   DECLARE_CONCRETE_INSTRUCTION(CheckFunction)
 
  protected:
   virtual bool DataEquals(HValue* other) {
     HCheckFunction* b = HCheckFunction::cast(other);
     return target_unique_id_ == b->target_unique_id_;
   }
 
  private:
+  HCheckFunction(HValue* value, Handle<JSFunction> function)
+      : HUnaryOperation(value, value->type()),
+        target_(function), target_unique_id_() {
+    set_representation(Representation::Tagged());
+    SetFlag(kUseGVN);
+    target_in_new_space_ = Isolate::Current()->heap()->InNewSpace(*function);
+  }
+
   Handle<JSFunction> target_;
   UniqueValueId target_unique_id_;
   bool target_in_new_space_;
 };
 
 
 class HCheckInstanceType: public HUnaryOperation {
  public:
   static HCheckInstanceType* NewIsSpecObject(HValue* value, Zone* zone) {
     return new(zone) HCheckInstanceType(value, IS_SPEC_OBJECT);
@@ skipping 48 matching lines @@
     set_representation(Representation::Tagged());
     SetFlag(kUseGVN);
   }
 
   const Check check_;
 };
 
 
 class HCheckSmi: public HUnaryOperation {
  public:
-  explicit HCheckSmi(HValue* value) : HUnaryOperation(value, HType::Smi()) {
-    set_representation(Representation::Smi());
-    SetFlag(kUseGVN);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P1(HCheckSmi, HValue*);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   virtual HValue* Canonicalize() {
     HType value_type = value()->type();
     if (value_type.IsSmi()) {
       return NULL;
     }
     return this;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CheckSmi)
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
+
+ private:
+  explicit HCheckSmi(HValue* value) : HUnaryOperation(value, HType::Smi()) {
+    set_representation(Representation::Smi());
+    SetFlag(kUseGVN);
+  }
 };
 
 
 class HIsNumberAndBranch: public HUnaryControlInstruction {
  public:
   explicit HIsNumberAndBranch(HValue* value)
     : HUnaryControlInstruction(value, NULL, NULL) {
     SetFlag(kFlexibleRepresentation);
   }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(IsNumberAndBranch)
 };
 
 
 class HCheckHeapObject: public HUnaryOperation {
  public:
-  explicit HCheckHeapObject(HValue* value)
-      : HUnaryOperation(value, HType::NonPrimitive()) {
-    set_representation(Representation::Tagged());
-    SetFlag(kUseGVN);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P1(HCheckHeapObject, HValue*);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
 #ifdef DEBUG
   virtual void Verify();
 #endif
 
   virtual HValue* Canonicalize() {
     return value()->type().IsHeapObject() ? NULL : this;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CheckHeapObject)
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
+
+ private:
+  explicit HCheckHeapObject(HValue* value)
+      : HUnaryOperation(value, HType::NonPrimitive()) {
+    set_representation(Representation::Tagged());
+    SetFlag(kUseGVN);
+  }
 };
 
 
 class HCheckPrototypeMaps: public HTemplateInstruction<0> {
  public:
-  HCheckPrototypeMaps(Handle<JSObject> prototype,
-                      Handle<JSObject> holder,
-                      Zone* zone,
-                      CompilationInfo* info)
-      : prototypes_(2, zone),
-        maps_(2, zone),
-        first_prototype_unique_id_(),
-        last_prototype_unique_id_(),
-        can_omit_prototype_maps_(true) {
-    SetFlag(kUseGVN);
-    SetGVNFlag(kDependsOnMaps);
-    // Keep a list of all objects on the prototype chain up to the holder
-    // and the expected maps.
-    while (true) {
-      prototypes_.Add(prototype, zone);
-      Handle<Map> map(prototype->map());
-      maps_.Add(map, zone);
-      can_omit_prototype_maps_ &= map->CanOmitPrototypeChecks();
-      if (prototype.is_identical_to(holder)) break;
-      prototype = Handle<JSObject>(JSObject::cast(prototype->GetPrototype()));
-    }
-    if (can_omit_prototype_maps_) {
-      // Mark in-flight compilation as dependent on those maps.
-      for (int i = 0; i < maps()->length(); i++) {
-        Handle<Map> map = maps()->at(i);
-        map->AddDependentCompilationInfo(DependentCode::kPrototypeCheckGroup,
-                                         info);
-      }
-    }
+  static HCheckPrototypeMaps* New(Zone* zone,
+                                  HValue* context,
+                                  Handle<JSObject> prototype,
+                                  Handle<JSObject> holder,
+                                  CompilationInfo* info) {
+    return new(zone) HCheckPrototypeMaps(prototype, holder, zone, info);
   }
 
   ZoneList<Handle<JSObject> >* prototypes() { return &prototypes_; }
 
   ZoneList<Handle<Map> >* maps() { return &maps_; }
 
   DECLARE_CONCRETE_INSTRUCTION(CheckPrototypeMaps)
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
@@ skipping 14 matching lines @@
   bool CanOmitPrototypeChecks() { return can_omit_prototype_maps_; }
 
  protected:
   virtual bool DataEquals(HValue* other) {
     HCheckPrototypeMaps* b = HCheckPrototypeMaps::cast(other);
     return first_prototype_unique_id_ == b->first_prototype_unique_id_ &&
            last_prototype_unique_id_ == b->last_prototype_unique_id_;
   }
 
  private:
+  HCheckPrototypeMaps(Handle<JSObject> prototype,
+                      Handle<JSObject> holder,
+                      Zone* zone,
+                      CompilationInfo* info)
+      : prototypes_(2, zone),
+        maps_(2, zone),
+        first_prototype_unique_id_(),
+        last_prototype_unique_id_(),
+        can_omit_prototype_maps_(true) {
+    SetFlag(kUseGVN);
+    SetGVNFlag(kDependsOnMaps);
+    // Keep a list of all objects on the prototype chain up to the holder
+    // and the expected maps.
+    while (true) {
+      prototypes_.Add(prototype, zone);
+      Handle<Map> map(prototype->map());
+      maps_.Add(map, zone);
+      can_omit_prototype_maps_ &= map->CanOmitPrototypeChecks();
+      if (prototype.is_identical_to(holder)) break;
+      prototype = Handle<JSObject>(JSObject::cast(prototype->GetPrototype()));
+    }
+    if (can_omit_prototype_maps_) {
+      // Mark in-flight compilation as dependent on those maps.
+      for (int i = 0; i < maps()->length(); i++) {
+        Handle<Map> map = maps()->at(i);
+        map->AddDependentCompilationInfo(DependentCode::kPrototypeCheckGroup,
+                                         info);
+      }
+    }
+  }
+
   ZoneList<Handle<JSObject> > prototypes_;
   ZoneList<Handle<Map> > maps_;
   UniqueValueId first_prototype_unique_id_;
   UniqueValueId last_prototype_unique_id_;
   bool can_omit_prototype_maps_;
 };
 
 
 class InductionVariableData;
 
@@ skipping 381 matching lines @@
   // the operand can change if a new idef of the phi is added between the phi
   // and this instruction (inserting an idef updates every use).
   HPhi* phi_;
   NumericRelation relation_;
   int operand_index_;
 };
 
 
 class HArgumentsObject: public HTemplateInstruction<0> {
  public:
-  HArgumentsObject(int count, Zone* zone) : values_(count, zone) {
-    set_representation(Representation::Tagged());
-    SetFlag(kIsArguments);
+  static HArgumentsObject* New(Zone* zone,
+                               HValue* context,
+                               int count) {
+    return new(zone) HArgumentsObject(count, zone);
   }
 
   const ZoneList<HValue*>* arguments_values() const { return &values_; }
   int arguments_count() const { return values_.length(); }
 
   void AddArgument(HValue* argument, Zone* zone) {
     values_.Add(NULL, zone);  // Resize list.
     SetOperandAt(values_.length() - 1, argument);
   }
 
   virtual int OperandCount() { return values_.length(); }
   virtual HValue* OperandAt(int index) const { return values_[index]; }
 
   virtual bool HasEscapingOperandAt(int index) { return false; }
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(ArgumentsObject)
 
  protected:
   virtual void InternalSetOperandAt(int index, HValue* value) {
     values_[index] = value;
   }
 
  private:
+  HArgumentsObject(int count, Zone* zone) : values_(count, zone) {
+    set_representation(Representation::Tagged());
+    SetFlag(kIsArguments);
+  }
+
   virtual bool IsDeletable() const { return true; }
 
   ZoneList<HValue*> values_;
 };
 
 
 class HConstant: public HTemplateInstruction<0> {
  public:
-  HConstant(Handle<Object> handle, Representation r = Representation::None());
-  HConstant(int32_t value,
-            Representation r = Representation::None(),
-            bool is_not_in_new_space = true,
-            Handle<Object> optional_handle = Handle<Object>::null());
-  HConstant(double value,
-            Representation r = Representation::None(),
-            bool is_not_in_new_space = true,
-            Handle<Object> optional_handle = Handle<Object>::null());
-  HConstant(Handle<Object> handle,
-            UniqueValueId unique_id,
-            Representation r,
-            HType type,
-            bool is_internalized_string,
-            bool is_not_in_new_space,
-            bool is_cell,
-            bool boolean_value);
-  explicit HConstant(ExternalReference reference);
+  DECLARE_INSTRUCTION_FACTORY_P1(HConstant, int32_t);
+  DECLARE_INSTRUCTION_FACTORY_P1(HConstant, double);
+  DECLARE_INSTRUCTION_FACTORY_P1(HConstant, Handle<Object>);
+  DECLARE_INSTRUCTION_FACTORY_P1(HConstant, ExternalReference);
 
   Handle<Object> handle() {
     if (handle_.is_null()) {
       Factory* factory = Isolate::Current()->factory();
       // Default arguments to is_not_in_new_space depend on this heap number
       // to be tenured so that it's guaranteed not be be located in new space.
       handle_ = factory->NewNumber(double_value_, TENURED);
     }
     AllowDeferredHandleDereference smi_check;
     ASSERT(has_int32_value_ || !handle_->IsSmi());
@@ skipping 160 matching lines @@
           external_reference_value_ ==
           other_constant->external_reference_value_;
     } else {
       ASSERT(!handle_.is_null());
       return !other_constant->handle_.is_null() &&
              unique_id_ == other_constant->unique_id_;
     }
   }
 
  private:
+  friend class HGraph;
+  HConstant(Handle<Object> handle, Representation r = Representation::None());
+  HConstant(int32_t value,
+            Representation r = Representation::None(),
+            bool is_not_in_new_space = true,
+            Handle<Object> optional_handle = Handle<Object>::null());
+  HConstant(double value,
+            Representation r = Representation::None(),
+            bool is_not_in_new_space = true,
+            Handle<Object> optional_handle = Handle<Object>::null());
+  HConstant(Handle<Object> handle,
+            UniqueValueId unique_id,
+            Representation r,
+            HType type,
+            bool is_internalized_string,
+            bool is_not_in_new_space,
+            bool is_cell,
+            bool boolean_value);
+  explicit HConstant(ExternalReference reference);
+
   void Initialize(Representation r);
 
   virtual bool IsDeletable() const { return true; }
 
   // If this is a numerical constant, handle_ either points to to the
   // HeapObject the constant originated from or is null.  If the
   // constant is non-numeric, handle_ always points to a valid
   // constant HeapObject.
   Handle<Object> handle_;
   UniqueValueId unique_id_;
@@ skipping 99 matching lines @@
  private:
   bool IgnoreObservedOutputRepresentation(Representation current_rep);
 
   Representation observed_input_representation_[2];
   Representation observed_output_representation_;
 };
 
 
 class HWrapReceiver: public HTemplateInstruction<2> {
  public:
-  HWrapReceiver(HValue* receiver, HValue* function) {
-    set_representation(Representation::Tagged());
-    SetOperandAt(0, receiver);
-    SetOperandAt(1, function);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P2(HWrapReceiver, HValue*, HValue*);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   HValue* receiver() { return OperandAt(0); }
   HValue* function() { return OperandAt(1); }
 
   virtual HValue* Canonicalize();
 
   virtual void PrintDataTo(StringStream* stream);
 
   DECLARE_CONCRETE_INSTRUCTION(WrapReceiver)
+
+ private:
+  HWrapReceiver(HValue* receiver, HValue* function) {
+    set_representation(Representation::Tagged());
+    SetOperandAt(0, receiver);
+    SetOperandAt(1, function);
+  }
 };
 
 
 class HApplyArguments: public HTemplateInstruction<4> {
  public:
   HApplyArguments(HValue* function,
                   HValue* receiver,
                   HValue* length,
                   HValue* elements) {
     set_representation(Representation::Tagged());
@@ skipping 15 matching lines @@
   HValue* receiver() { return OperandAt(1); }
   HValue* length() { return OperandAt(2); }
   HValue* elements() { return OperandAt(3); }
 
   DECLARE_CONCRETE_INSTRUCTION(ApplyArguments)
 };
 
 
 class HArgumentsElements: public HTemplateInstruction<0> {
  public:
-  explicit HArgumentsElements(bool from_inlined) : from_inlined_(from_inlined) {
-    // The value produced by this instruction is a pointer into the stack
-    // that looks as if it was a smi because of alignment.
-    set_representation(Representation::Tagged());
-    SetFlag(kUseGVN);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P1(HArgumentsElements, bool);
 
   DECLARE_CONCRETE_INSTRUCTION(ArgumentsElements)
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
   }
 
   bool from_inlined() const { return from_inlined_; }
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
 
  private:
+  explicit HArgumentsElements(bool from_inlined) : from_inlined_(from_inlined) {
+    // The value produced by this instruction is a pointer into the stack
+    // that looks as if it was a smi because of alignment.
+    set_representation(Representation::Tagged());
+    SetFlag(kUseGVN);
+  }
+
   virtual bool IsDeletable() const { return true; }
 
   bool from_inlined_;
 };
 
 
 class HArgumentsLength: public HUnaryOperation {
  public:
-  explicit HArgumentsLength(HValue* value) : HUnaryOperation(value) {
-    set_representation(Representation::Integer32());
-    SetFlag(kUseGVN);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P1(HArgumentsLength, HValue*);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(ArgumentsLength)
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
 
  private:
+  explicit HArgumentsLength(HValue* value) : HUnaryOperation(value) {
+    set_representation(Representation::Integer32());
+    SetFlag(kUseGVN);
+  }
+
   virtual bool IsDeletable() const { return true; }
 };
 
 
 class HAccessArgumentsAt: public HTemplateInstruction<3> {
  public:
   HAccessArgumentsAt(HValue* arguments, HValue* length, HValue* index) {
     set_representation(Representation::Tagged());
     SetFlag(kUseGVN);
     SetOperandAt(0, arguments);
@@ skipping 18 matching lines @@
 
   virtual bool DataEquals(HValue* other) { return true; }
 };
 
 
 class HBoundsCheckBaseIndexInformation;
 
 
 class HBoundsCheck: public HTemplateInstruction<2> {
  public:
-  // Normally HBoundsCheck should be created using the
-  // HGraphBuilder::AddBoundsCheck() helper.
-  // However when building stubs, where we know that the arguments are Int32,
-  // it makes sense to invoke this constructor directly.
-  HBoundsCheck(HValue* index, HValue* length)
-    : skip_check_(false),
-      base_(NULL), offset_(0), scale_(0),
-      responsibility_direction_(DIRECTION_NONE),
-      allow_equality_(false) {
-    SetOperandAt(0, index);
-    SetOperandAt(1, length);
-    SetFlag(kFlexibleRepresentation);
-    SetFlag(kUseGVN);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P2(HBoundsCheck, HValue*, HValue*);
 
   bool skip_check() const { return skip_check_; }
   void set_skip_check() { skip_check_ = true; }
+
   HValue* base() { return base_; }
   int offset() { return offset_; }
   int scale() { return scale_; }
   bool index_can_increase() {
     return (responsibility_direction_ & DIRECTION_LOWER) == 0;
   }
   bool index_can_decrease() {
     return (responsibility_direction_ & DIRECTION_UPPER) == 0;
   }
 
@@ skipping 49 matching lines @@
   virtual bool DataEquals(HValue* other) { return true; }
   virtual void TryGuaranteeRangeChanging(RangeEvaluationContext* context);
   bool skip_check_;
   HValue* base_;
   int offset_;
   int scale_;
   RangeGuaranteeDirection responsibility_direction_;
   bool allow_equality_;
 
  private:
+  // Normally HBoundsCheck should be created using the
+  // HGraphBuilder::AddBoundsCheck() helper.
+  // However when building stubs, where we know that the arguments are Int32,
+  // it makes sense to invoke this constructor directly.
+  HBoundsCheck(HValue* index, HValue* length)
+    : skip_check_(false),
+      base_(NULL), offset_(0), scale_(0),
+      responsibility_direction_(DIRECTION_NONE),
+      allow_equality_(false) {
+    SetOperandAt(0, index);
+    SetOperandAt(1, length);
+    SetFlag(kFlexibleRepresentation);
+    SetFlag(kUseGVN);
+  }
+
   virtual bool IsDeletable() const {
     return skip_check() && !FLAG_debug_code;
   }
 };
 
 
 class HBoundsCheckBaseIndexInformation: public HTemplateInstruction<2> {
  public:
   explicit HBoundsCheckBaseIndexInformation(HBoundsCheck* check) {
     DecompositionResult decomposition;
@@ skipping 76 matching lines @@
 
   DECLARE_ABSTRACT_INSTRUCTION(BitwiseBinaryOperation)
 
  private:
   virtual bool IsDeletable() const { return true; }
 };
 
 
 class HMathFloorOfDiv: public HBinaryOperation {
  public:
-  HMathFloorOfDiv(HValue* context, HValue* left, HValue* right)
-      : HBinaryOperation(context, left, right) {
-    set_representation(Representation::Integer32());
-    SetFlag(kUseGVN);
-    SetFlag(kCanOverflow);
-    if (!right->IsConstant()) {
-      SetFlag(kCanBeDivByZero);
-    }
-    SetFlag(kAllowUndefinedAsNaN);
+  static HMathFloorOfDiv* New(Zone* zone,
+                              HValue* context,
+                              HValue* left,
+                              HValue* right) {
+    return new(zone) HMathFloorOfDiv(context, left, right);
   }
 
   virtual HValue* EnsureAndPropagateNotMinusZero(BitVector* visited);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Integer32();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(MathFloorOfDiv)
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
 
  private:
+  HMathFloorOfDiv(HValue* context, HValue* left, HValue* right)
+      : HBinaryOperation(context, left, right) {
+    set_representation(Representation::Integer32());
+    SetFlag(kUseGVN);
+    SetFlag(kCanOverflow);
+    if (!right->IsConstant()) {
+      SetFlag(kCanBeDivByZero);
+    }
+    SetFlag(kAllowUndefinedAsNaN);
+  }
+
   virtual bool IsDeletable() const { return true; }
 };
 
 
 class HArithmeticBinaryOperation: public HBinaryOperation {
  public:
   HArithmeticBinaryOperation(HValue* context, HValue* left, HValue* right)
       : HBinaryOperation(context, left, right, HType::TaggedNumber()) {
     SetAllSideEffects();
     SetFlag(kFlexibleRepresentation);
@@ skipping 81 matching lines @@
   DECLARE_CONCRETE_INSTRUCTION(CompareNumericAndBranch)
 
  private:
   Representation observed_input_representation_[2];
   Token::Value token_;
 };
 
 
 class HCompareObjectEqAndBranch: public HTemplateControlInstruction<2, 2> {
  public:
-  HCompareObjectEqAndBranch(HValue* left, HValue* right) {
+  // TODO(danno): make this private when the IfBuilder properly constructs
+  // control flow instructions.
+  HCompareObjectEqAndBranch(HValue* left,
+                            HValue* right) {
     SetOperandAt(0, left);
     SetOperandAt(1, right);
   }
 
+  DECLARE_INSTRUCTION_FACTORY_P2(HCompareObjectEqAndBranch, HValue*, HValue*);
+
   HValue* left() { return OperandAt(0); }
   HValue* right() { return OperandAt(1); }
 
   virtual void PrintDataTo(StringStream* stream);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   virtual Representation observed_input_representation(int index) {
@@ skipping 265 matching lines @@
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(InstanceSize)
 };
 
 
 class HPower: public HTemplateInstruction<2> {
  public:
-  static HInstruction* New(Zone* zone, HValue* left, HValue* right);
+  static HInstruction* New(Zone* zone,
+                           HValue* context,
+                           HValue* left,
+                           HValue* right);
 
   HValue* left() { return OperandAt(0); }
   HValue* right() const { return OperandAt(1); }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return index == 0
       ? Representation::Double()
       : Representation::None();
   }
   virtual Representation observed_input_representation(int index) {
@@ skipping 314 matching lines @@
       : HArithmeticBinaryOperation(context, left, right),
         operation_(op) { }
 
   Operation operation_;
 };
 
 
 class HBitwise: public HBitwiseBinaryOperation {
  public:
   static HInstruction* New(Zone* zone,
+                           HValue* context,
                            Token::Value op,
-                           HValue* context,
                            HValue* left,
                            HValue* right);
 
   Token::Value op() const { return op_; }
 
   virtual bool IsCommutative() const { return true; }
 
   virtual HValue* Canonicalize();
 
   virtual void PrintDataTo(StringStream* stream);
 
   DECLARE_CONCRETE_INSTRUCTION(Bitwise)
 
  protected:
   virtual bool DataEquals(HValue* other) {
     return op() == HBitwise::cast(other)->op();
   }
 
   virtual Range* InferRange(Zone* zone);
 
  private:
-  HBitwise(Token::Value op, HValue* context, HValue* left, HValue* right)
+  HBitwise(HValue* context,
+           Token::Value op,
+           HValue* left,
+           HValue* right)
       : HBitwiseBinaryOperation(context, left, right, HType::TaggedNumber()),
         op_(op) {
     ASSERT(op == Token::BIT_AND || op == Token::BIT_OR || op == Token::BIT_XOR);
     // BIT_AND with a smi-range positive value will always unset the
     // entire sign-extension of the smi-sign.
     if (op == Token::BIT_AND &&
         ((left->IsConstant() &&
           left->representation().IsSmi() &&
           HConstant::cast(left)->Integer32Value() >= 0) ||
          (right->IsConstant() &&
@@ skipping 142 matching lines @@
 
   DECLARE_CONCRETE_INSTRUCTION(Ror)
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
 };
 
 
 class HOsrEntry: public HTemplateInstruction<0> {
  public:
-  explicit HOsrEntry(BailoutId ast_id) : ast_id_(ast_id) {
-    SetGVNFlag(kChangesOsrEntries);
-    SetGVNFlag(kChangesNewSpacePromotion);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P1(HOsrEntry, BailoutId);
 
   BailoutId ast_id() const { return ast_id_; }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(OsrEntry)
 
  private:
+  explicit HOsrEntry(BailoutId ast_id) : ast_id_(ast_id) {
+    SetGVNFlag(kChangesOsrEntries);
+    SetGVNFlag(kChangesNewSpacePromotion);
+  }
+
   BailoutId ast_id_;
 };
 
 
 class HParameter: public HTemplateInstruction<0> {
  public:
   enum ParameterKind {
     STACK_PARAMETER,
     REGISTER_PARAMETER
   };
 
+  DECLARE_INSTRUCTION_FACTORY_P1(HParameter, unsigned);
+  DECLARE_INSTRUCTION_FACTORY_P2(HParameter, unsigned, ParameterKind);
+  DECLARE_INSTRUCTION_FACTORY_P3(HParameter, unsigned, ParameterKind,
+                                 Representation);
+
+  unsigned index() const { return index_; }
+  ParameterKind kind() const { return kind_; }
+
+  virtual void PrintDataTo(StringStream* stream);
+
+  virtual Representation RequiredInputRepresentation(int index) {
+    return Representation::None();
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(Parameter)
+
+ private:
   explicit HParameter(unsigned index,
                       ParameterKind kind = STACK_PARAMETER)
       : index_(index),
         kind_(kind) {
     set_representation(Representation::Tagged());
   }
 
   explicit HParameter(unsigned index,
                       ParameterKind kind,
                       Representation r)
       : index_(index),
         kind_(kind) {
     set_representation(r);
   }
 
-  unsigned index() const { return index_; }
-  ParameterKind kind() const { return kind_; }
-
-  virtual void PrintDataTo(StringStream* stream);
-
-  virtual Representation RequiredInputRepresentation(int index) {
-    return Representation::None();
-  }
-
-  DECLARE_CONCRETE_INSTRUCTION(Parameter)
-
- private:
   unsigned index_;
   ParameterKind kind_;
 };
 
 
 class HCallStub: public HUnaryCall {
  public:
   HCallStub(HValue* context, CodeStub::Major major_key, int argument_count)
       : HUnaryCall(context, argument_count),
         major_key_(major_key),
@@ skipping 20 matching lines @@
   DECLARE_CONCRETE_INSTRUCTION(CallStub)
 
  private:
   CodeStub::Major major_key_;
   TranscendentalCache::Type transcendental_type_;
 };
 
 
 class HUnknownOSRValue: public HTemplateInstruction<0> {
  public:
-  HUnknownOSRValue()
-      : incoming_value_(NULL) {
-    set_representation(Representation::Tagged());
-  }
+  DECLARE_INSTRUCTION_FACTORY_P0(HUnknownOSRValue)
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
   }
 
   void set_incoming_value(HPhi* value) {
     incoming_value_ = value;
   }
 
   HPhi* incoming_value() {
     return incoming_value_;
   }
 
   virtual Representation KnownOptimalRepresentation() {
     if (incoming_value_ == NULL) return Representation::None();
     return incoming_value_->KnownOptimalRepresentation();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(UnknownOSRValue)
 
  private:
+  HUnknownOSRValue()
+      : incoming_value_(NULL) {
+    set_representation(Representation::Tagged());
+  }
+
   HPhi* incoming_value_;
 };
 
 
 class HLoadGlobalCell: public HTemplateInstruction<0> {
  public:
   HLoadGlobalCell(Handle<Cell> cell, PropertyDetails details)
       : cell_(cell), details_(details), unique_id_() {
     set_representation(Representation::Tagged());
     SetFlag(kUseGVN);
@@ skipping 62 matching lines @@
   DECLARE_CONCRETE_INSTRUCTION(LoadGlobalGeneric)
 
  private:
   Handle<Object> name_;
   bool for_typeof_;
 };
 
 
 class HAllocate: public HTemplateInstruction<2> {
  public:
-  HAllocate(HValue* context,
-            HValue* size,
-            HType type,
-            bool pretenure,
-            ElementsKind kind = FAST_ELEMENTS)
-      : HTemplateInstruction<2>(type) {
-    SetOperandAt(0, context);
-    SetOperandAt(1, size);
-    set_representation(Representation::Tagged());
-    SetFlag(kTrackSideEffectDominators);
-    SetGVNFlag(kChangesNewSpacePromotion);
-    SetGVNFlag(kDependsOnNewSpacePromotion);
-    if (pretenure) {
-      if (IsFastDoubleElementsKind(kind)) {
-        flags_ = static_cast<HAllocate::Flags>(ALLOCATE_IN_OLD_DATA_SPACE |
-             ALLOCATE_DOUBLE_ALIGNED);
-      } else {
-        flags_ = ALLOCATE_IN_OLD_POINTER_SPACE;
-      }
-    } else {
-      flags_ = ALLOCATE_IN_NEW_SPACE;
-      if (IsFastDoubleElementsKind(kind)) {
-        flags_ = static_cast<HAllocate::Flags>(flags_ |
-            ALLOCATE_DOUBLE_ALIGNED);
-      }
-    }
+  static HAllocate* New(Zone* zone,
+                        HValue* context,
+                        HValue* size,
+                        HType type,
+                        bool pretenure,
+                        ElementsKind kind = FAST_ELEMENTS) {
+    return new(zone) HAllocate(context, size, type, pretenure, kind);
   }
 
   // Maximum instance size for which allocations will be inlined.
   static const int kMaxInlineSize = 64 * kPointerSize;
 
   HValue* context() { return OperandAt(0); }
   HValue* size() { return OperandAt(1); }
 
   virtual Representation RequiredInputRepresentation(int index) {
     if (index == 0) {
@@ skipping 52 matching lines @@
 
  private:
   enum Flags {
     ALLOCATE_IN_NEW_SPACE = 1 << 0,
     ALLOCATE_IN_OLD_DATA_SPACE = 1 << 1,
     ALLOCATE_IN_OLD_POINTER_SPACE = 1 << 2,
     ALLOCATE_DOUBLE_ALIGNED = 1 << 3,
     PREFILL_WITH_FILLER = 1 << 4
   };
 
+  HAllocate(HValue* context,
+            HValue* size,
+            HType type,
+            bool pretenure,
+            ElementsKind kind)
+      : HTemplateInstruction<2>(type) {
+    SetOperandAt(0, context);
+    SetOperandAt(1, size);
+    set_representation(Representation::Tagged());
+    SetFlag(kTrackSideEffectDominators);
+    SetGVNFlag(kChangesNewSpacePromotion);
+    SetGVNFlag(kDependsOnNewSpacePromotion);
+    if (pretenure) {
+      if (IsFastDoubleElementsKind(kind)) {
+        flags_ = static_cast<HAllocate::Flags>(ALLOCATE_IN_OLD_DATA_SPACE |
+             ALLOCATE_DOUBLE_ALIGNED);
+      } else {
+        flags_ = ALLOCATE_IN_OLD_POINTER_SPACE;
+      }
+    } else {
+      flags_ = ALLOCATE_IN_NEW_SPACE;
+      if (IsFastDoubleElementsKind(kind)) {
+        flags_ = static_cast<HAllocate::Flags>(flags_ |
+            ALLOCATE_DOUBLE_ALIGNED);
+      }
+    }
+  }
+
   Flags flags_;
   Handle<Map> known_initial_map_;
 };
 
 
 class HInnerAllocatedObject: public HTemplateInstruction<1> {
  public:
-  HInnerAllocatedObject(HValue* value, int offset, HType type = HType::Tagged())
-      : HTemplateInstruction<1>(type), offset_(offset) {
-    ASSERT(value->IsAllocate());
-    SetOperandAt(0, value);
-    set_representation(Representation::Tagged());
+  static HInnerAllocatedObject* New(Zone* zone,
+                                    HValue* context,
+                                    HValue* value,
+                                    int offset,
+                                    HType type = HType::Tagged()) {
+    return new(zone) HInnerAllocatedObject(value, offset, type);
   }
 
   HValue* base_object() { return OperandAt(0); }
   int offset() { return offset_; }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   virtual void PrintDataTo(StringStream* stream);
 
   DECLARE_CONCRETE_INSTRUCTION(InnerAllocatedObject)
 
  private:
+  HInnerAllocatedObject(HValue* value, int offset, HType type = HType::Tagged())
+      : HTemplateInstruction<1>(type), offset_(offset) {
+    ASSERT(value->IsAllocate());
+    SetOperandAt(0, value);
+    set_type(type);
+    set_representation(Representation::Tagged());
+  }
+
   int offset_;
 };
 
 
 inline bool StoringValueNeedsWriteBarrier(HValue* value) {
   return !value->type().IsBoolean()
       && !value->type().IsSmi()
       && !(value->IsConstant() && HConstant::cast(value)->ImmortalImmovable());
 }
 
@@ skipping 16 matching lines @@
   if (object != new_space_dominator) return true;
   if (object->IsAllocate()) {
     return !HAllocate::cast(object)->IsNewSpaceAllocation();
   }
   return true;
 }
 
 
 class HStoreGlobalCell: public HUnaryOperation {
  public:
-  HStoreGlobalCell(HValue* value,
-                   Handle<PropertyCell> cell,
-                   PropertyDetails details)
-      : HUnaryOperation(value),
-        cell_(cell),
-        details_(details) {
-    SetGVNFlag(kChangesGlobalVars);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P3(HStoreGlobalCell, HValue*,
+                                 Handle<PropertyCell>, PropertyDetails);
 
   Handle<PropertyCell> cell() const { return cell_; }
   bool RequiresHoleCheck() {
     return !details_.IsDontDelete() || details_.IsReadOnly();
   }
   bool NeedsWriteBarrier() {
     return StoringValueNeedsWriteBarrier(value());
   }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
   virtual void PrintDataTo(StringStream* stream);
 
   DECLARE_CONCRETE_INSTRUCTION(StoreGlobalCell)
 
  private:
+  HStoreGlobalCell(HValue* value,
+                   Handle<PropertyCell> cell,
+                   PropertyDetails details)
+      : HUnaryOperation(value),
+        cell_(cell),
+        details_(details) {
+    SetGVNFlag(kChangesGlobalVars);
+  }
+
   Handle<PropertyCell> cell_;
   PropertyDetails details_;
 };
 
 
 class HStoreGlobalGeneric: public HTemplateInstruction<3> {
  public:
-  HStoreGlobalGeneric(HValue* context,
-                      HValue* global_object,
-                      Handle<Object> name,
-                      HValue* value,
-                      StrictModeFlag strict_mode_flag)
-      : name_(name),
-        strict_mode_flag_(strict_mode_flag) {
-    SetOperandAt(0, context);
-    SetOperandAt(1, global_object);
-    SetOperandAt(2, value);
-    set_representation(Representation::Tagged());
-    SetAllSideEffects();
+  inline static HStoreGlobalGeneric* New(Zone* zone,
+                                         HValue* context,
+                                         HValue* global_object,
+                                         Handle<Object> name,
+                                         HValue* value,
+                                         StrictModeFlag strict_mode_flag) {
+    return new(zone) HStoreGlobalGeneric(context, global_object,
+                                         name, value, strict_mode_flag);
   }
 
   HValue* context() { return OperandAt(0); }
   HValue* global_object() { return OperandAt(1); }
   Handle<Object> name() const { return name_; }
   HValue* value() { return OperandAt(2); }
   StrictModeFlag strict_mode_flag() { return strict_mode_flag_; }
 
   virtual void PrintDataTo(StringStream* stream);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(StoreGlobalGeneric)
 
  private:
+  HStoreGlobalGeneric(HValue* context,
+                      HValue* global_object,
+                      Handle<Object> name,
+                      HValue* value,
+                      StrictModeFlag strict_mode_flag)
+      : name_(name),
+        strict_mode_flag_(strict_mode_flag) {
+    SetOperandAt(0, context);
+    SetOperandAt(1, global_object);
+    SetOperandAt(2, value);
+    set_representation(Representation::Tagged());
+    SetAllSideEffects();
+  }
+
   Handle<Object> name_;
   StrictModeFlag strict_mode_flag_;
 };
 
 
 class HLoadContextSlot: public HUnaryOperation {
  public:
   enum Mode {
     // Perform a normal load of the context slot without checking its value.
     kNoCheck,
@@ skipping 67 matching lines @@
     kNoCheck,
     // Check the previous value of the context slot and deoptimize if it's the
     // hole value. This is used for checking for assignments to uninitialized
     // harmony bindings where we deoptimize into full-codegen generated code
     // which will subsequently throw a reference error.
     kCheckDeoptimize,
     // Check the previous value and ignore assignment if it isn't a hole value
     kCheckIgnoreAssignment
   };
 
-  HStoreContextSlot(HValue* context, int slot_index, Mode mode, HValue* value)
-      : slot_index_(slot_index), mode_(mode) {
-    SetOperandAt(0, context);
-    SetOperandAt(1, value);
-    SetGVNFlag(kChangesContextSlots);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P4(HStoreContextSlot, HValue*, int,
+                                 Mode, HValue*);
 
   HValue* context() { return OperandAt(0); }
   HValue* value() { return OperandAt(1); }
   int slot_index() const { return slot_index_; }
   Mode mode() const { return mode_; }
 
   bool NeedsWriteBarrier() {
     return StoringValueNeedsWriteBarrier(value());
   }
 
   bool DeoptimizesOnHole() {
     return mode_ == kCheckDeoptimize;
   }
 
   bool RequiresHoleCheck() {
     return mode_ != kNoCheck;
   }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   virtual void PrintDataTo(StringStream* stream);
 
   DECLARE_CONCRETE_INSTRUCTION(StoreContextSlot)
 
  private:
+  HStoreContextSlot(HValue* context, int slot_index, Mode mode, HValue* value)
+      : slot_index_(slot_index), mode_(mode) {
+    SetOperandAt(0, context);
+    SetOperandAt(1, value);
+    SetGVNFlag(kChangesContextSlots);
+  }
+
   int slot_index_;
   Mode mode_;
 };
 
 
 // Represents an access to a portion of an object, such as the map pointer,
 // array elements pointer, etc, but not accesses to array elements themselves.
 class HObjectAccess {
  public:
   inline bool IsInobject() const {
@@ skipping 151 matching lines @@
   friend class HStoreNamedField;
 
   inline Portion portion() const {
     return PortionField::decode(value_);
   }
 };
 
 
 class HLoadNamedField: public HTemplateInstruction<2> {
  public:
-  HLoadNamedField(HValue* object,
-                  HObjectAccess access,
-                  HValue* typecheck = NULL)
-      : access_(access) {
-    ASSERT(object != NULL);
-    SetOperandAt(0, object);
-    SetOperandAt(1, typecheck != NULL ? typecheck : object);
-
-    Representation representation = access.representation();
-    if (representation.IsSmi()) {
-      set_type(HType::Smi());
-      set_representation(representation);
-    } else if (representation.IsDouble() ||
-               representation.IsExternal() ||
-               representation.IsInteger32()) {
-      set_representation(representation);
-    } else if (FLAG_track_heap_object_fields &&
-               representation.IsHeapObject()) {
-      set_type(HType::NonPrimitive());
-      set_representation(Representation::Tagged());
-    } else {
-      set_representation(Representation::Tagged());
-    }
-    access.SetGVNFlags(this, false);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P2(HLoadNamedField, HValue*, HObjectAccess);
+  DECLARE_INSTRUCTION_FACTORY_P3(HLoadNamedField, HValue*, HObjectAccess,
+                                 HValue*);
 
   HValue* object() { return OperandAt(0); }
   HValue* typecheck() {
     ASSERT(HasTypeCheck());
     return OperandAt(1);
   }
 
   bool HasTypeCheck() const { return OperandAt(0) != OperandAt(1); }
   HObjectAccess access() const { return access_; }
   Representation field_representation() const {
@@ skipping 12 matching lines @@
 
   DECLARE_CONCRETE_INSTRUCTION(LoadNamedField)
 
  protected:
   virtual bool DataEquals(HValue* other) {
     HLoadNamedField* b = HLoadNamedField::cast(other);
     return access_.Equals(b->access_);
   }
 
  private:
+  HLoadNamedField(HValue* object,
+                  HObjectAccess access,
+                  HValue* typecheck = NULL)
+      : access_(access) {
+    ASSERT(object != NULL);
+    SetOperandAt(0, object);
+    SetOperandAt(1, typecheck != NULL ? typecheck : object);
+
+    Representation representation = access.representation();
+    if (representation.IsSmi()) {
+      set_type(HType::Smi());
+      set_representation(representation);
+    } else if (representation.IsDouble() ||
+               representation.IsExternal() ||
+               representation.IsInteger32()) {
+      set_representation(representation);
+    } else if (FLAG_track_heap_object_fields &&
+               representation.IsHeapObject()) {
+      set_type(HType::NonPrimitive());
+      set_representation(Representation::Tagged());
+    } else {
+      set_representation(Representation::Tagged());
+    }
+    access.SetGVNFlags(this, false);
+  }
+
   virtual bool IsDeletable() const { return true; }
 
   HObjectAccess access_;
 };
 
 
 class HLoadNamedFieldPolymorphic: public HTemplateInstruction<2> {
  public:
   HLoadNamedFieldPolymorphic(HValue* context,
                              HValue* object,
@@ skipping 98 matching lines @@
 
 enum LoadKeyedHoleMode {
   NEVER_RETURN_HOLE,
   ALLOW_RETURN_HOLE
 };
 
 
 class HLoadKeyed
     : public HTemplateInstruction<3>, public ArrayInstructionInterface {
  public:
-  HLoadKeyed(HValue* obj,
-             HValue* key,
-             HValue* dependency,
-             ElementsKind elements_kind,
-             LoadKeyedHoleMode mode = NEVER_RETURN_HOLE)
-      : bit_field_(0) {
-    bit_field_ = ElementsKindField::encode(elements_kind) |
-        HoleModeField::encode(mode);
-
-    SetOperandAt(0, obj);
-    SetOperandAt(1, key);
-    SetOperandAt(2, dependency != NULL ? dependency : obj);
-
-    if (!is_external()) {
-      // I can detect the case between storing double (holey and fast) and
-      // smi/object by looking at elements_kind_.
-      ASSERT(IsFastSmiOrObjectElementsKind(elements_kind) ||
-             IsFastDoubleElementsKind(elements_kind));
-
-      if (IsFastSmiOrObjectElementsKind(elements_kind)) {
-        if (IsFastSmiElementsKind(elements_kind) &&
-            (!IsHoleyElementsKind(elements_kind) ||
-             mode == NEVER_RETURN_HOLE)) {
-          set_type(HType::Smi());
-          set_representation(Representation::Smi());
-        } else {
-          set_representation(Representation::Tagged());
-        }
-
-        SetGVNFlag(kDependsOnArrayElements);
-      } else {
-        set_representation(Representation::Double());
-        SetGVNFlag(kDependsOnDoubleArrayElements);
-      }
-    } else {
-      if (elements_kind == EXTERNAL_FLOAT_ELEMENTS ||
-          elements_kind == EXTERNAL_DOUBLE_ELEMENTS) {
-        set_representation(Representation::Double());
-      } else {
-        set_representation(Representation::Integer32());
-      }
-
-      SetGVNFlag(kDependsOnExternalMemory);
-      // Native code could change the specialized array.
-      SetGVNFlag(kDependsOnCalls);
-    }
-
-    SetFlag(kUseGVN);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P4(HLoadKeyed, HValue*, HValue*, HValue*,
+                                 ElementsKind);
+  DECLARE_INSTRUCTION_FACTORY_P5(HLoadKeyed, HValue*, HValue*, HValue*,
+                                 ElementsKind, LoadKeyedHoleMode);
 
   bool is_external() const {
     return IsExternalArrayElementsKind(elements_kind());
   }
   HValue* elements() { return OperandAt(0); }
   HValue* key() { return OperandAt(1); }
   HValue* dependency() {
     ASSERT(HasDependency());
     return OperandAt(2);
   }
@@ skipping 48 matching lines @@
   virtual bool DataEquals(HValue* other) {
     if (!other->IsLoadKeyed()) return false;
     HLoadKeyed* other_load = HLoadKeyed::cast(other);
 
     if (IsDehoisted() && index_offset() != other_load->index_offset())
       return false;
     return elements_kind() == other_load->elements_kind();
   }
 
  private:
+  HLoadKeyed(HValue* obj,
+             HValue* key,
+             HValue* dependency,
+             ElementsKind elements_kind,
+             LoadKeyedHoleMode mode = NEVER_RETURN_HOLE)
+      : bit_field_(0) {
+    bit_field_ = ElementsKindField::encode(elements_kind) |
+        HoleModeField::encode(mode);
+
+    SetOperandAt(0, obj);
+    SetOperandAt(1, key);
+    SetOperandAt(2, dependency != NULL ? dependency : obj);
+
+    if (!is_external()) {
+      // I can detect the case between storing double (holey and fast) and
+      // smi/object by looking at elements_kind_.
+      ASSERT(IsFastSmiOrObjectElementsKind(elements_kind) ||
+             IsFastDoubleElementsKind(elements_kind));
+
+      if (IsFastSmiOrObjectElementsKind(elements_kind)) {
+        if (IsFastSmiElementsKind(elements_kind) &&
+            (!IsHoleyElementsKind(elements_kind) ||
+             mode == NEVER_RETURN_HOLE)) {
+          set_type(HType::Smi());
+          set_representation(Representation::Smi());
+        } else {
+          set_representation(Representation::Tagged());
+        }
+
+        SetGVNFlag(kDependsOnArrayElements);
+      } else {
+        set_representation(Representation::Double());
+        SetGVNFlag(kDependsOnDoubleArrayElements);
+      }
+    } else {
+      if (elements_kind == EXTERNAL_FLOAT_ELEMENTS ||
+          elements_kind == EXTERNAL_DOUBLE_ELEMENTS) {
+        set_representation(Representation::Double());
+      } else {
+        set_representation(Representation::Integer32());
+      }
+
+      SetGVNFlag(kDependsOnExternalMemory);
+      // Native code could change the specialized array.
+      SetGVNFlag(kDependsOnCalls);
+    }
+
+    SetFlag(kUseGVN);
+  }
+
   virtual bool IsDeletable() const {
     return !RequiresHoleCheck();
   }
 
   // Establish some checks around our packed fields
   enum LoadKeyedBits {
     kBitsForElementsKind = 5,
     kBitsForHoleMode = 1,
     kBitsForIndexOffset = 25,
     kBitsForIsDehoisted = 1,
@@ skipping 45 matching lines @@
   }
 
   virtual HValue* Canonicalize();
 
   DECLARE_CONCRETE_INSTRUCTION(LoadKeyedGeneric)
 };
 
 
 class HStoreNamedField: public HTemplateInstruction<2> {
  public:
-  HStoreNamedField(HValue* obj,
-                   HObjectAccess access,
-                   HValue* val)
-      : access_(access),
-        transition_(),
-        transition_unique_id_(),
-        new_space_dominator_(NULL),
-        write_barrier_mode_(UPDATE_WRITE_BARRIER) {
-    SetOperandAt(0, obj);
-    SetOperandAt(1, val);
-    access.SetGVNFlags(this, true);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P3(HStoreNamedField, HValue*,
+                                 HObjectAccess, HValue*);
 
   DECLARE_CONCRETE_INSTRUCTION(StoreNamedField)
 
   virtual bool HasEscapingOperandAt(int index) { return index == 1; }
   virtual Representation RequiredInputRepresentation(int index) {
     if (index == 0 && access().IsExternalMemory()) {
       // object must be external in case of external memory access
       return Representation::External();
     } else if (index == 1 &&
         (field_representation().IsDouble() ||
@@ skipping 49 matching lines @@
 
   virtual void FinalizeUniqueValueId() {
     transition_unique_id_ = UniqueValueId(transition_);
   }
 
   Representation field_representation() const {
     return access_.representation();
   }
 
  private:
+  HStoreNamedField(HValue* obj,
+                   HObjectAccess access,
+                   HValue* val)
+      : access_(access),
+        transition_(),
+        transition_unique_id_(),
+        new_space_dominator_(NULL),
+        write_barrier_mode_(UPDATE_WRITE_BARRIER) {
+    SetOperandAt(0, obj);
+    SetOperandAt(1, val);
+    access.SetGVNFlags(this, true);
+  }
+
   HObjectAccess access_;
   Handle<Map> transition_;
   UniqueValueId transition_unique_id_;
   HValue* new_space_dominator_;
   WriteBarrierMode write_barrier_mode_;
 };
 
 
 class HStoreNamedGeneric: public HTemplateInstruction<3> {
  public:
@@ skipping 26 matching lines @@
 
  private:
   Handle<String> name_;
   StrictModeFlag strict_mode_flag_;
 };
 
 
 class HStoreKeyed
     : public HTemplateInstruction<3>, public ArrayInstructionInterface {
  public:
-  HStoreKeyed(HValue* obj, HValue* key, HValue* val,
-              ElementsKind elements_kind)
-      : elements_kind_(elements_kind),
-      index_offset_(0),
-      is_dehoisted_(false),
-      is_uninitialized_(false),
-      new_space_dominator_(NULL) {
-    SetOperandAt(0, obj);
-    SetOperandAt(1, key);
-    SetOperandAt(2, val);
-
-    if (IsFastObjectElementsKind(elements_kind)) {
-      SetFlag(kTrackSideEffectDominators);
-      SetGVNFlag(kDependsOnNewSpacePromotion);
-    }
-    if (is_external()) {
-      SetGVNFlag(kChangesExternalMemory);
-      SetFlag(kAllowUndefinedAsNaN);
-    } else if (IsFastDoubleElementsKind(elements_kind)) {
-      SetGVNFlag(kChangesDoubleArrayElements);
-    } else if (IsFastSmiElementsKind(elements_kind)) {
-      SetGVNFlag(kChangesArrayElements);
-    } else {
-      SetGVNFlag(kChangesArrayElements);
-    }
-
-    // EXTERNAL_{UNSIGNED_,}{BYTE,SHORT,INT}_ELEMENTS are truncating.
-    if (elements_kind >= EXTERNAL_BYTE_ELEMENTS &&
-        elements_kind <= EXTERNAL_UNSIGNED_INT_ELEMENTS) {
-      SetFlag(kTruncatingToInt32);
-    }
-  }
+  DECLARE_INSTRUCTION_FACTORY_P4(HStoreKeyed, HValue*, HValue*, HValue*,
+                                 ElementsKind);
 
   virtual bool HasEscapingOperandAt(int index) { return index != 0; }
   virtual Representation RequiredInputRepresentation(int index) {
     // kind_fast:       tagged[int32] = tagged
     // kind_double:     tagged[int32] = double
     // kind_smi   :     tagged[int32] = smi
     // kind_external: external[int32] = (double | int32)
     if (index == 0) {
       return is_external() ? Representation::External()
                            : Representation::Tagged();
@@ skipping 76 matching lines @@
     }
   }
 
   bool NeedsCanonicalization();
 
   virtual void PrintDataTo(StringStream* stream);
 
   DECLARE_CONCRETE_INSTRUCTION(StoreKeyed)
 
  private:
+  HStoreKeyed(HValue* obj, HValue* key, HValue* val,
+              ElementsKind elements_kind)
+      : elements_kind_(elements_kind),
+      index_offset_(0),
+      is_dehoisted_(false),
+      is_uninitialized_(false),
+      new_space_dominator_(NULL) {
+    SetOperandAt(0, obj);
+    SetOperandAt(1, key);
+    SetOperandAt(2, val);
+
+    if (IsFastObjectElementsKind(elements_kind)) {
+      SetFlag(kTrackSideEffectDominators);
+      SetGVNFlag(kDependsOnNewSpacePromotion);
+    }
+    if (is_external()) {
+      SetGVNFlag(kChangesExternalMemory);
+      SetFlag(kAllowUndefinedAsNaN);
+    } else if (IsFastDoubleElementsKind(elements_kind)) {
+      SetGVNFlag(kChangesDoubleArrayElements);
+    } else if (IsFastSmiElementsKind(elements_kind)) {
+      SetGVNFlag(kChangesArrayElements);
+    } else {
+      SetGVNFlag(kChangesArrayElements);
+    }
+
+    // EXTERNAL_{UNSIGNED_,}{BYTE,SHORT,INT}_ELEMENTS are truncating.
+    if (elements_kind >= EXTERNAL_BYTE_ELEMENTS &&
+        elements_kind <= EXTERNAL_UNSIGNED_INT_ELEMENTS) {
+      SetFlag(kTruncatingToInt32);
+    }
+  }
+
   ElementsKind elements_kind_;
   uint32_t index_offset_;
   bool is_dehoisted_ : 1;
   bool is_uninitialized_ : 1;
   HValue* new_space_dominator_;
 };
 
 
 class HStoreKeyedGeneric: public HTemplateInstruction<4> {
  public:
@@ skipping 25 matching lines @@
 
   DECLARE_CONCRETE_INSTRUCTION(StoreKeyedGeneric)
 
  private:
   StrictModeFlag strict_mode_flag_;
 };
 
 
 class HTransitionElementsKind: public HTemplateInstruction<2> {
  public:
-  HTransitionElementsKind(HValue* context,
-                          HValue* object,
-                          Handle<Map> original_map,
-                          Handle<Map> transitioned_map)
-      : original_map_(original_map),
-        transitioned_map_(transitioned_map),
-        original_map_unique_id_(),
-        transitioned_map_unique_id_(),
-        from_kind_(original_map->elements_kind()),
-        to_kind_(transitioned_map->elements_kind()) {
-    SetOperandAt(0, object);
-    SetOperandAt(1, context);
-    SetFlag(kUseGVN);
-    SetGVNFlag(kChangesElementsKind);
-    if (original_map->has_fast_double_elements()) {
-      SetGVNFlag(kChangesElementsPointer);
-      SetGVNFlag(kChangesNewSpacePromotion);
-    }
-    if (transitioned_map->has_fast_double_elements()) {
-      SetGVNFlag(kChangesElementsPointer);
-      SetGVNFlag(kChangesNewSpacePromotion);
-    }
-    set_representation(Representation::Tagged());
+  inline static HTransitionElementsKind* New(Zone* zone,
+                                             HValue* context,
+                                             HValue* object,
+                                             Handle<Map> original_map,
+                                             Handle<Map> transitioned_map) {
+    return new(zone) HTransitionElementsKind(context, object,
+                                             original_map, transitioned_map);
   }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   HValue* object() { return OperandAt(0); }
   HValue* context() { return OperandAt(1); }
   Handle<Map> original_map() { return original_map_; }
   Handle<Map> transitioned_map() { return transitioned_map_; }
@@ skipping 10 matching lines @@
   DECLARE_CONCRETE_INSTRUCTION(TransitionElementsKind)
 
  protected:
   virtual bool DataEquals(HValue* other) {
     HTransitionElementsKind* instr = HTransitionElementsKind::cast(other);
     return original_map_unique_id_ == instr->original_map_unique_id_ &&
            transitioned_map_unique_id_ == instr->transitioned_map_unique_id_;
   }
 
  private:
+  HTransitionElementsKind(HValue* context,
+                          HValue* object,
+                          Handle<Map> original_map,
+                          Handle<Map> transitioned_map)
+      : original_map_(original_map),
+        transitioned_map_(transitioned_map),
+        original_map_unique_id_(),
+        transitioned_map_unique_id_(),
+        from_kind_(original_map->elements_kind()),
+        to_kind_(transitioned_map->elements_kind()) {
+    SetOperandAt(0, object);
+    SetOperandAt(1, context);
+    SetFlag(kUseGVN);
+    SetGVNFlag(kChangesElementsKind);
+    if (original_map->has_fast_double_elements()) {
+      SetGVNFlag(kChangesElementsPointer);
+      SetGVNFlag(kChangesNewSpacePromotion);
+    }
+    if (transitioned_map->has_fast_double_elements()) {
+      SetGVNFlag(kChangesElementsPointer);
+      SetGVNFlag(kChangesNewSpacePromotion);
+    }
+    set_representation(Representation::Tagged());
+  }
+
   Handle<Map> original_map_;
   Handle<Map> transitioned_map_;
   UniqueValueId original_map_unique_id_;
   UniqueValueId transitioned_map_unique_id_;
   ElementsKind from_kind_;
   ElementsKind to_kind_;
 };
 
 
 class HStringAdd: public HBinaryOperation {
@@ skipping 27 matching lines @@
   // No side-effects except possible allocation.
   // NOTE: this instruction _does not_ call ToString() on its inputs.
   virtual bool IsDeletable() const { return true; }
 
   const StringAddFlags flags_;
 };
 
 
 class HStringCharCodeAt: public HTemplateInstruction<3> {
  public:
-  HStringCharCodeAt(HValue* context, HValue* string, HValue* index) {
-    SetOperandAt(0, context);
-    SetOperandAt(1, string);
-    SetOperandAt(2, index);
-    set_representation(Representation::Integer32());
-    SetFlag(kUseGVN);
-    SetGVNFlag(kDependsOnMaps);
-    SetGVNFlag(kChangesNewSpacePromotion);
+  static HStringCharCodeAt* New(Zone* zone,
+                                HValue* context,
+                                HValue* string,
+                                HValue* index) {
+    return new(zone) HStringCharCodeAt(context, string, index);
   }
 
   virtual Representation RequiredInputRepresentation(int index) {
     // The index is supposed to be Integer32.
     return index == 2
         ? Representation::Integer32()
         : Representation::Tagged();
   }
 
   HValue* context() const { return OperandAt(0); }
   HValue* string() const { return OperandAt(1); }
   HValue* index() const { return OperandAt(2); }
 
   DECLARE_CONCRETE_INSTRUCTION(StringCharCodeAt)
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
 
   virtual Range* InferRange(Zone* zone) {
     return new(zone) Range(0, String::kMaxUtf16CodeUnit);
   }
 
  private:
+  HStringCharCodeAt(HValue* context, HValue* string, HValue* index) {
+    SetOperandAt(0, context);
+    SetOperandAt(1, string);
+    SetOperandAt(2, index);
+    set_representation(Representation::Integer32());
+    SetFlag(kUseGVN);
+    SetGVNFlag(kDependsOnMaps);
+    SetGVNFlag(kChangesNewSpacePromotion);
+  }
+
   // No side effects: runtime function assumes string + number inputs.
   virtual bool IsDeletable() const { return true; }
 };
 
 
 class HStringCharFromCode: public HTemplateInstruction<2> {
  public:
   static HInstruction* New(Zone* zone,
                            HValue* context,
                            HValue* char_code);
@@ skipping 22 matching lines @@
   }
 
   virtual bool IsDeletable() const {
     return !value()->ToNumberCanBeObserved();
   }
 };
 
 
 class HStringLength: public HUnaryOperation {
  public:
-  static HInstruction* New(Zone* zone, HValue* string);
+  static HInstruction* New(Zone* zone, HValue* context, HValue* string);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(StringLength)
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
 
@@ skipping 137 matching lines @@
 
   DECLARE_CONCRETE_INSTRUCTION(Typeof)
 
  private:
   virtual bool IsDeletable() const { return true; }
 };
 
 
 class HTrapAllocationMemento : public HTemplateInstruction<1> {
  public:
-  explicit HTrapAllocationMemento(HValue* obj) {
-    SetOperandAt(0, obj);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P1(HTrapAllocationMemento, HValue*);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   HValue* object() { return OperandAt(0); }
 
   DECLARE_CONCRETE_INSTRUCTION(TrapAllocationMemento)
+
+ private:
+  explicit HTrapAllocationMemento(HValue* obj) {
+    SetOperandAt(0, obj);
+  }
 };
 
 
 class HToFastProperties: public HUnaryOperation {
  public:
+  DECLARE_INSTRUCTION_FACTORY_P1(HToFastProperties, HValue*);
+
+  virtual Representation RequiredInputRepresentation(int index) {
+    return Representation::Tagged();
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(ToFastProperties)
+
+ private:
   explicit HToFastProperties(HValue* value) : HUnaryOperation(value) {
     // This instruction is not marked as having side effects, but
     // changes the map of the input operand. Use it only when creating
     // object literals via a runtime call.
     ASSERT(value->IsCallRuntime());
 #ifdef DEBUG
     const Runtime::Function* function = HCallRuntime::cast(value)->function();
     ASSERT(function->function_id == Runtime::kCreateObjectLiteral ||
            function->function_id == Runtime::kCreateObjectLiteralShallow);
 #endif
     set_representation(Representation::Tagged());
   }
 
-  virtual Representation RequiredInputRepresentation(int index) {
-    return Representation::Tagged();
-  }
-
-  DECLARE_CONCRETE_INSTRUCTION(ToFastProperties)
-
- private:
   virtual bool IsDeletable() const { return true; }
 };
 
 
 class HValueOf: public HUnaryOperation {
  public:
   explicit HValueOf(HValue* value) : HUnaryOperation(value) {
     set_representation(Representation::Tagged());
   }
 
@@ skipping 52 matching lines @@
 
   DECLARE_CONCRETE_INSTRUCTION(SeqStringSetChar)
 
  private:
   String::Encoding encoding_;
 };
 
 
 class HCheckMapValue: public HTemplateInstruction<2> {
  public:
-  HCheckMapValue(HValue* value,
-                 HValue* map) {
-    SetOperandAt(0, value);
-    SetOperandAt(1, map);
-    set_representation(Representation::Tagged());
-    SetFlag(kUseGVN);
-    SetGVNFlag(kDependsOnMaps);
-    SetGVNFlag(kDependsOnElementsKind);
-  }
+  DECLARE_INSTRUCTION_FACTORY_P2(HCheckMapValue, HValue*, HValue*);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   virtual void PrintDataTo(StringStream* stream);
 
   virtual HType CalculateInferredType() {
     return HType::Tagged();
   }
 
   HValue* value() { return OperandAt(0); }
   HValue* map() { return OperandAt(1); }
 
   DECLARE_CONCRETE_INSTRUCTION(CheckMapValue)
 
  protected:
   virtual bool DataEquals(HValue* other) {
     return true;
   }
+
+ private:
+  HCheckMapValue(HValue* value,
+                 HValue* map) {
+    SetOperandAt(0, value);
+    SetOperandAt(1, map);
+    set_representation(Representation::Tagged());
+    SetFlag(kUseGVN);
+    SetGVNFlag(kDependsOnMaps);
+    SetGVNFlag(kDependsOnElementsKind);
+  }
 };
 
 
 class HForInPrepareMap : public HTemplateInstruction<2> {
  public:
-  HForInPrepareMap(HValue* context,
-                   HValue* object) {
-    SetOperandAt(0, context);
-    SetOperandAt(1, object);
-    set_representation(Representation::Tagged());
-    SetAllSideEffects();
+  static HForInPrepareMap* New(Zone* zone,
+                               HValue* context,
+                               HValue* object) {
+    return new(zone) HForInPrepareMap(context, object);
   }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   HValue* context() { return OperandAt(0); }
   HValue* enumerable() { return OperandAt(1); }
 
   virtual void PrintDataTo(StringStream* stream);
 
   virtual HType CalculateInferredType() {
     return HType::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(ForInPrepareMap);
+
+ private:
+  HForInPrepareMap(HValue* context,
+                   HValue* object) {
+    SetOperandAt(0, context);
+    SetOperandAt(1, object);
+    set_representation(Representation::Tagged());
+    SetAllSideEffects();
+  }
 };
 
 
 class HForInCacheArray : public HTemplateInstruction<2> {
  public:
-  HForInCacheArray(HValue* enumerable,
-                   HValue* keys,
-                   int idx) : idx_(idx) {
-    SetOperandAt(0, enumerable);
-    SetOperandAt(1, keys);
-    set_representation(Representation::Tagged());
-  }
+  DECLARE_INSTRUCTION_FACTORY_P3(HForInCacheArray, HValue*, HValue*, int);
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
 
   HValue* enumerable() { return OperandAt(0); }
   HValue* map() { return OperandAt(1); }
   int idx() { return idx_; }
 
   HForInCacheArray* index_cache() {
     return index_cache_;
   }
 
   void set_index_cache(HForInCacheArray* index_cache) {
     index_cache_ = index_cache;
   }
 
   virtual void PrintDataTo(StringStream* stream);
 
   virtual HType CalculateInferredType() {
     return HType::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(ForInCacheArray);
 
  private:
+  HForInCacheArray(HValue* enumerable,
+                   HValue* keys,
+                   int idx) : idx_(idx) {
+    SetOperandAt(0, enumerable);
+    SetOperandAt(1, keys);
+    set_representation(Representation::Tagged());
+  }
+
   int idx_;
   HForInCacheArray* index_cache_;
 };
 
 
 class HLoadFieldByIndex : public HTemplateInstruction<2> {
  public:
   HLoadFieldByIndex(HValue* object,
                     HValue* index) {
     SetOperandAt(0, object);
@@ skipping 20 matching lines @@
   virtual bool IsDeletable() const { return true; }
 };
 
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_