Version 3.0.10...

src/ia32/lithium-ia32.h

 // Copyright 2011 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 96 matching lines @@
 //     LOsrEntry
 //     LParameter
 //     LRegExpConstructResult
 //     LStackCheck
 //     LStoreKeyed
 //       LStoreKeyedFastElement
 //       LStoreKeyedGeneric
 //     LStoreNamed
 //       LStoreNamedField
 //       LStoreNamedGeneric
+//     LStringCharCodeAt
 //     LBitNotI
 //     LCallNew
 //     LCheckFunction
 //     LCheckPrototypeMaps
 //     LCheckInstanceType
 //     LCheckMap
 //     LCheckSmi
 //     LClassOfTest
 //     LDeleteProperty
 //     LDoubleToI
 //     LFixedArrayLength
 //     LHasCachedArrayIndex
 //     LHasInstanceType
 //     LInteger32ToDouble
 //     LIsNull
 //     LIsObject
 //     LIsSmi
 //     LJSArrayLength
 //     LLoadNamedField
 //     LLoadNamedGeneric
 //     LLoadFunctionPrototype
 //     LNumberTagD
 //     LNumberTagI
 //     LPushArgument
 //     LReturn
 //     LSmiTag
 //     LStoreGlobal
+//     LStringLength
 //     LTaggedToI
 //     LThrow
 //     LTypeof
 //     LTypeofIs
 //     LUnaryMathOperation
 //     LValueOf
 //     LUnknownOSRValue
 
 #define LITHIUM_ALL_INSTRUCTION_LIST(V)         \
   V(ControlInstruction)                         \
@@ skipping 92 matching lines @@
   V(Return)                                     \
   V(ShiftI)                                     \
   V(SmiTag)                                     \
   V(SmiUntag)                                   \
   V(StackCheck)                                 \
   V(StoreGlobal)                                \
   V(StoreKeyedFastElement)                      \
   V(StoreKeyedGeneric)                          \
   V(StoreNamedField)                            \
   V(StoreNamedGeneric)                          \
+  V(StringCharCodeAt)                           \
+  V(StringLength)                               \
   V(SubI)                                       \
   V(TaggedToI)                                  \
   V(Throw)                                      \
   V(Typeof)                                     \
   V(TypeofIs)                                   \
   V(TypeofIsAndBranch)                          \
   V(UnaryMathOperation)                         \
   V(UnknownOSRValue)                            \
   V(ValueOf)
 
@@ skipping 62 matching lines @@
   }
 
  private:
   SetOncePointer<LEnvironment> environment_;
   SetOncePointer<LPointerMap> pointer_map_;
   HValue* hydrogen_value_;
   SetOncePointer<LEnvironment> deoptimization_environment_;
 };
 
 
-template<typename T, int N>
+template<typename ElementType, int NumElements>
 class OperandContainer {
  public:
   OperandContainer() {
-    for (int i = 0; i < N; i++) elems_[i] = NULL;
+    for (int i = 0; i < NumElements; i++) elems_[i] = NULL;
   }
-  int length() { return N; }
-  T& operator[](int i) {
+  int length() { return NumElements; }
+  ElementType& operator[](int i) {
     ASSERT(i < length());
     return elems_[i];
   }
   void PrintOperandsTo(StringStream* stream);
 
  private:
-  T elems_[N];
+  ElementType elems_[NumElements];
 };
 
 
-template<typename T>
-class OperandContainer<T, 0> {
+template<typename ElementType>
+class OperandContainer<ElementType, 0> {
  public:
   int length() { return 0; }
   void PrintOperandsTo(StringStream* stream) { }
 };
 
 
-template<int R, int I, int T = 0>
+// R = number of result operands (0 or 1).
+// I = number of input operands.
+// T = number of temporary operands.
+template<int R, int I, int T>
 class LTemplateInstruction: public LInstruction {
  public:
   // Allow 0 or 1 output operands.
   STATIC_ASSERT(R == 0 || R == 1);
   virtual bool HasResult() const { return R != 0; }
   void set_result(LOperand* operand) { results_[0] = operand; }
   LOperand* result() { return results_[0]; }
 
   int InputCount() { return I; }
   LOperand* InputAt(int i) { return inputs_[i]; }
@@ skipping 130 matching lines @@
   }
 };
 
 
 class LUnknownOSRValue: public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(UnknownOSRValue, "unknown-osr-value")
 };
 
 
-template<int I, int T = 0>
+template<int I, int T>
 class LControlInstruction: public LTemplateInstruction<0, I, T> {
  public:
   DECLARE_INSTRUCTION(ControlInstruction)
   virtual bool IsControl() const { return true; }
 
   int true_block_id() const { return true_block_id_; }
   int false_block_id() const { return false_block_id_; }
   void SetBranchTargets(int true_block_id, int false_block_id) {
     true_block_id_ = true_block_id;
     false_block_id_ = false_block_id;
@@ skipping 37 matching lines @@
   DECLARE_CONCRETE_INSTRUCTION(AccessArgumentsAt, "access-arguments-at")
 
   LOperand* arguments() { return inputs_[0]; }
   LOperand* length() { return inputs_[1]; }
   LOperand* index() { return inputs_[2]; }
 
   virtual void PrintDataTo(StringStream* stream);
 };
 
 
-class LArgumentsLength: public LTemplateInstruction<1, 1> {
+class LArgumentsLength: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LArgumentsLength(LOperand* elements) {
     inputs_[0] = elements;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(ArgumentsLength, "arguments-length")
 };
 
 
 class LArgumentsElements: public LTemplateInstruction<1, 0, 0> {
@@ skipping 36 matching lines @@
     inputs_[0] = left;
     inputs_[1] = right;
     temps_[0] = temp;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(MulI, "mul-i")
   DECLARE_HYDROGEN_ACCESSOR(Mul)
 };
 
 
-class LCmpID: public LTemplateInstruction<1, 2> {
+class LCmpID: public LTemplateInstruction<1, 2, 0> {
  public:
   LCmpID(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CmpID, "cmp-id")
   DECLARE_HYDROGEN_ACCESSOR(Compare)
 
   Token::Value op() const { return hydrogen()->token(); }
   bool is_double() const {
     return hydrogen()->GetInputRepresentation().IsDouble();
   }
 };
 
 
-class LCmpIDAndBranch: public LControlInstruction<2> {
+class LCmpIDAndBranch: public LControlInstruction<2, 0> {
  public:
   LCmpIDAndBranch(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CmpIDAndBranch, "cmp-id-and-branch")
   DECLARE_HYDROGEN_ACCESSOR(Compare)
 
   Token::Value op() const { return hydrogen()->token(); }
   bool is_double() const {
     return hydrogen()->GetInputRepresentation().IsDouble();
   }
 
   virtual void PrintDataTo(StringStream* stream);
 };
 
 
-class LUnaryMathOperation: public LTemplateInstruction<1, 1> {
+class LUnaryMathOperation: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LUnaryMathOperation(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(UnaryMathOperation, "unary-math-operation")
   DECLARE_HYDROGEN_ACCESSOR(UnaryMathOperation)
 
   virtual void PrintDataTo(StringStream* stream);
   BuiltinFunctionId op() const { return hydrogen()->op(); }
 };
 
 
-class LCmpJSObjectEq: public LTemplateInstruction<1, 2> {
+class LCmpJSObjectEq: public LTemplateInstruction<1, 2, 0> {
  public:
   LCmpJSObjectEq(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CmpJSObjectEq, "cmp-jsobject-eq")
 };
 
 
-class LCmpJSObjectEqAndBranch: public LControlInstruction<2> {
+class LCmpJSObjectEqAndBranch: public LControlInstruction<2, 0> {
  public:
   LCmpJSObjectEqAndBranch(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CmpJSObjectEqAndBranch,
                                "cmp-jsobject-eq-and-branch")
 };
 
 
-class LIsNull: public LTemplateInstruction<1, 1> {
+class LIsNull: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LIsNull(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(IsNull, "is-null")
   DECLARE_HYDROGEN_ACCESSOR(IsNull)
 
   bool is_strict() const { return hydrogen()->is_strict(); }
 };
@@ skipping 33 matching lines @@
     temps_[0] = temp;
     temps_[1] = temp2;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(IsObjectAndBranch, "is-object-and-branch")
 
   virtual void PrintDataTo(StringStream* stream);
 };
 
 
-class LIsSmi: public LTemplateInstruction<1, 1> {
+class LIsSmi: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LIsSmi(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(IsSmi, "is-smi")
   DECLARE_HYDROGEN_ACCESSOR(IsSmi)
 };
 
 
-class LIsSmiAndBranch: public LControlInstruction<1> {
+class LIsSmiAndBranch: public LControlInstruction<1, 0> {
  public:
   explicit LIsSmiAndBranch(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(IsSmiAndBranch, "is-smi-and-branch")
 
   virtual void PrintDataTo(StringStream* stream);
 };
 
 
-class LHasInstanceType: public LTemplateInstruction<1, 1> {
+class LHasInstanceType: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LHasInstanceType(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(HasInstanceType, "has-instance-type")
   DECLARE_HYDROGEN_ACCESSOR(HasInstanceType)
 };
 
 
 class LHasInstanceTypeAndBranch: public LControlInstruction<1, 1> {
  public:
   LHasInstanceTypeAndBranch(LOperand* value, LOperand* temp) {
     inputs_[0] = value;
     temps_[0] = temp;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(HasInstanceTypeAndBranch,
                                "has-instance-type-and-branch")
   DECLARE_HYDROGEN_ACCESSOR(HasInstanceType)
 
   virtual void PrintDataTo(StringStream* stream);
 };
 
 
-class LHasCachedArrayIndex: public LTemplateInstruction<1, 1> {
+class LHasCachedArrayIndex: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LHasCachedArrayIndex(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(HasCachedArrayIndex, "has-cached-array-index")
   DECLARE_HYDROGEN_ACCESSOR(HasCachedArrayIndex)
 };
 
 
-class LHasCachedArrayIndexAndBranch: public LControlInstruction<1> {
+class LHasCachedArrayIndexAndBranch: public LControlInstruction<1, 0> {
  public:
   explicit LHasCachedArrayIndexAndBranch(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(HasCachedArrayIndexAndBranch,
                                "has-cached-array-index-and-branch")
   virtual void PrintDataTo(StringStream* stream);
 };
 
@@ skipping 21 matching lines @@
   }
 
   DECLARE_CONCRETE_INSTRUCTION(ClassOfTestAndBranch,
                                "class-of-test-and-branch")
   DECLARE_HYDROGEN_ACCESSOR(ClassOfTest)
 
   virtual void PrintDataTo(StringStream* stream);
 };
 
 
-class LCmpT: public LTemplateInstruction<1, 2> {
+class LCmpT: public LTemplateInstruction<1, 2, 0> {
  public:
   LCmpT(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CmpT, "cmp-t")
   DECLARE_HYDROGEN_ACCESSOR(Compare)
 
   Token::Value op() const { return hydrogen()->token(); }
 };
 
 
-class LCmpTAndBranch: public LControlInstruction<2> {
+class LCmpTAndBranch: public LControlInstruction<2, 0> {
  public:
   LCmpTAndBranch(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CmpTAndBranch, "cmp-t-and-branch")
   DECLARE_HYDROGEN_ACCESSOR(Compare)
 
   Token::Value op() const { return hydrogen()->token(); }
 };
 
 
-class LInstanceOf: public LTemplateInstruction<1, 2> {
+class LInstanceOf: public LTemplateInstruction<1, 2, 0> {
  public:
   LInstanceOf(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(InstanceOf, "instance-of")
 };
 
 
-class LInstanceOfAndBranch: public LControlInstruction<2> {
+class LInstanceOfAndBranch: public LControlInstruction<2, 0> {
  public:
   LInstanceOfAndBranch(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(InstanceOfAndBranch, "instance-of-and-branch")
 };
 
 
@@ skipping 19 matching lines @@
     inputs_[1] = length;
   }
 
   LOperand* index() { return inputs_[0]; }
   LOperand* length() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(BoundsCheck, "bounds-check")
 };
 
 
-class LBitI: public LTemplateInstruction<1, 2> {
+class LBitI: public LTemplateInstruction<1, 2, 0> {
  public:
   LBitI(Token::Value op, LOperand* left, LOperand* right)
       : op_(op) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   Token::Value op() const { return op_; }
 
   DECLARE_CONCRETE_INSTRUCTION(BitI, "bit-i")
 
  private:
   Token::Value op_;
 };
 
 
-class LShiftI: public LTemplateInstruction<1, 2> {
+class LShiftI: public LTemplateInstruction<1, 2, 0> {
  public:
   LShiftI(Token::Value op, LOperand* left, LOperand* right, bool can_deopt)
       : op_(op), can_deopt_(can_deopt) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   Token::Value op() const { return op_; }
 
   bool can_deopt() const { return can_deopt_; }
 
   DECLARE_CONCRETE_INSTRUCTION(ShiftI, "shift-i")
 
  private:
   Token::Value op_;
   bool can_deopt_;
 };
 
 
-class LSubI: public LTemplateInstruction<1, 2> {
+class LSubI: public LTemplateInstruction<1, 2, 0> {
  public:
   LSubI(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(SubI, "sub-i")
   DECLARE_HYDROGEN_ACCESSOR(Sub)
 };
 
@@ skipping 32 matching lines @@
   explicit LConstantT(Handle<Object> value) : value_(value) { }
   Handle<Object> value() const { return value_; }
 
   DECLARE_CONCRETE_INSTRUCTION(ConstantT, "constant-t")
 
  private:
   Handle<Object> value_;
 };
 
 
-class LBranch: public LControlInstruction<1> {
+class LBranch: public LControlInstruction<1, 0> {
  public:
   explicit LBranch(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(Branch, "branch")
   DECLARE_HYDROGEN_ACCESSOR(Value)
 
   virtual void PrintDataTo(StringStream* stream);
 };
 
 
-class LCmpMapAndBranch: public LTemplateInstruction<0, 1> {
+class LCmpMapAndBranch: public LTemplateInstruction<0, 1, 0> {
  public:
   explicit LCmpMapAndBranch(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CmpMapAndBranch, "cmp-map-and-branch")
-  DECLARE_HYDROGEN_ACCESSOR(CompareMapAndBranch)
+  DECLARE_HYDROGEN_ACCESSOR(CompareMap)
 
   virtual bool IsControl() const { return true; }
 
   Handle<Map> map() const { return hydrogen()->map(); }
   int true_block_id() const {
-    return hydrogen()->true_destination()->block_id();
+    return hydrogen()->FirstSuccessor()->block_id();
   }
   int false_block_id() const {
-    return hydrogen()->false_destination()->block_id();
+    return hydrogen()->SecondSuccessor()->block_id();
   }
 };
 
 
-class LJSArrayLength: public LTemplateInstruction<1, 1> {
+class LJSArrayLength: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LJSArrayLength(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(JSArrayLength, "js-array-length")
   DECLARE_HYDROGEN_ACCESSOR(JSArrayLength)
 };
 
 
-class LFixedArrayLength: public LTemplateInstruction<1, 1> {
+class LFixedArrayLength: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LFixedArrayLength(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(FixedArrayLength, "fixed-array-length")
   DECLARE_HYDROGEN_ACCESSOR(FixedArrayLength)
 };
 
 
 class LValueOf: public LTemplateInstruction<1, 1, 1> {
  public:
   LValueOf(LOperand* value, LOperand* temp) {
     inputs_[0] = value;
     temps_[0] = temp;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(ValueOf, "value-of")
   DECLARE_HYDROGEN_ACCESSOR(ValueOf)
 };
 
 
-class LThrow: public LTemplateInstruction<0, 1> {
+class LThrow: public LTemplateInstruction<0, 1, 0> {
  public:
   explicit LThrow(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(Throw, "throw")
 };
 
 
-class LBitNotI: public LTemplateInstruction<1, 1> {
+class LBitNotI: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LBitNotI(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(BitNotI, "bit-not-i")
 };
 
 
-class LAddI: public LTemplateInstruction<1, 2> {
+class LAddI: public LTemplateInstruction<1, 2, 0> {
  public:
   LAddI(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(AddI, "add-i")
   DECLARE_HYDROGEN_ACCESSOR(Add)
 };
 
 
-class LPower: public LTemplateInstruction<1, 2> {
+class LPower: public LTemplateInstruction<1, 2, 0> {
  public:
   LPower(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(Power, "power")
   DECLARE_HYDROGEN_ACCESSOR(Power)
 };
 
 
-class LArithmeticD: public LTemplateInstruction<1, 2> {
+class LArithmeticD: public LTemplateInstruction<1, 2, 0> {
  public:
   LArithmeticD(Token::Value op, LOperand* left, LOperand* right)
       : op_(op) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   Token::Value op() const { return op_; }
 
   virtual void CompileToNative(LCodeGen* generator);
   virtual const char* Mnemonic() const;
 
  private:
   Token::Value op_;
 };
 
 
-class LArithmeticT: public LTemplateInstruction<1, 2> {
+class LArithmeticT: public LTemplateInstruction<1, 2, 0> {
  public:
   LArithmeticT(Token::Value op, LOperand* left, LOperand* right)
       : op_(op) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   virtual void CompileToNative(LCodeGen* generator);
   virtual const char* Mnemonic() const;
 
   Token::Value op() const { return op_; }
 
  private:
   Token::Value op_;
 };
 
 
-class LReturn: public LTemplateInstruction<0, 1> {
+class LReturn: public LTemplateInstruction<0, 1, 0> {
  public:
   explicit LReturn(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(Return, "return")
 };
 
 
-class LLoadNamedField: public LTemplateInstruction<1, 1> {
+class LLoadNamedField: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LLoadNamedField(LOperand* object) {
     inputs_[0] = object;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(LoadNamedField, "load-named-field")
   DECLARE_HYDROGEN_ACCESSOR(LoadNamedField)
 };
 
 
-class LLoadNamedGeneric: public LTemplateInstruction<1, 1> {
+class LLoadNamedGeneric: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LLoadNamedGeneric(LOperand* object) {
     inputs_[0] = object;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(LoadNamedGeneric, "load-named-generic")
   DECLARE_HYDROGEN_ACCESSOR(LoadNamedGeneric)
 
   LOperand* object() { return inputs_[0]; }
   Handle<Object> name() const { return hydrogen()->name(); }
 };
 
 
 class LLoadFunctionPrototype: public LTemplateInstruction<1, 1, 1> {
  public:
   LLoadFunctionPrototype(LOperand* function, LOperand* temp) {
     inputs_[0] = function;
     temps_[0] = temp;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(LoadFunctionPrototype, "load-function-prototype")
   DECLARE_HYDROGEN_ACCESSOR(LoadFunctionPrototype)
 
   LOperand* function() { return inputs_[0]; }
 };
 
 
-class LLoadElements: public LTemplateInstruction<1, 1> {
+class LLoadElements: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LLoadElements(LOperand* object) {
     inputs_[0] = object;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(LoadElements, "load-elements")
 };
 
 
-class LLoadKeyedFastElement: public LTemplateInstruction<1, 2> {
+class LLoadKeyedFastElement: public LTemplateInstruction<1, 2, 0> {
  public:
   LLoadKeyedFastElement(LOperand* elements, LOperand* key) {
     inputs_[0] = elements;
     inputs_[1] = key;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(LoadKeyedFastElement, "load-keyed-fast-element")
   DECLARE_HYDROGEN_ACCESSOR(LoadKeyedFastElement)
 
   LOperand* elements() { return inputs_[0]; }
   LOperand* key() { return inputs_[1]; }
 };
 
 
-class LLoadKeyedGeneric: public LTemplateInstruction<1, 2> {
+class LLoadKeyedGeneric: public LTemplateInstruction<1, 2, 0> {
  public:
   LLoadKeyedGeneric(LOperand* obj, LOperand* key) {
     inputs_[0] = obj;
     inputs_[1] = key;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(LoadKeyedGeneric, "load-keyed-generic")
 
   LOperand* object() { return inputs_[0]; }
   LOperand* key() { return inputs_[1]; }
 };
 
 
 class LLoadGlobal: public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(LoadGlobal, "load-global")
   DECLARE_HYDROGEN_ACCESSOR(LoadGlobal)
 };
 
 
-class LStoreGlobal: public LTemplateInstruction<0, 1> {
+class LStoreGlobal: public LTemplateInstruction<0, 1, 0> {
  public:
   explicit LStoreGlobal(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(StoreGlobal, "store-global")
   DECLARE_HYDROGEN_ACCESSOR(StoreGlobal)
 };
 
 
 class LLoadContextSlot: public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(LoadContextSlot, "load-context-slot")
   DECLARE_HYDROGEN_ACCESSOR(LoadContextSlot)
 
   int context_chain_length() { return hydrogen()->context_chain_length(); }
   int slot_index() { return hydrogen()->slot_index(); }
 
   virtual void PrintDataTo(StringStream* stream);
 };
 
 
-class LPushArgument: public LTemplateInstruction<0, 1> {
+class LPushArgument: public LTemplateInstruction<0, 1, 0> {
  public:
   explicit LPushArgument(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(PushArgument, "push-argument")
 };
 
 
 class LGlobalObject: public LTemplateInstruction<1, 0, 0> {
@@ skipping 73 matching lines @@
   DECLARE_CONCRETE_INSTRUCTION(CallKnownGlobal, "call-known-global")
   DECLARE_HYDROGEN_ACCESSOR(CallKnownGlobal)
 
   virtual void PrintDataTo(StringStream* stream);
 
   Handle<JSFunction> target() const { return hydrogen()->target();  }
   int arity() const { return hydrogen()->argument_count() - 1;  }
 };
 
 
-class LCallNew: public LTemplateInstruction<1, 1> {
+class LCallNew: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LCallNew(LOperand* constructor) {
     inputs_[0] = constructor;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CallNew, "call-new")
   DECLARE_HYDROGEN_ACCESSOR(CallNew)
 
   virtual void PrintDataTo(StringStream* stream);
 
   int arity() const { return hydrogen()->argument_count() - 1; }
 };
 
 
 class LCallRuntime: public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(CallRuntime, "call-runtime")
   DECLARE_HYDROGEN_ACCESSOR(CallRuntime)
 
   Runtime::Function* function() const { return hydrogen()->function(); }
   int arity() const { return hydrogen()->argument_count(); }
 };
 
 
-class LInteger32ToDouble: public LTemplateInstruction<1, 1> {
+class LInteger32ToDouble: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LInteger32ToDouble(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(Integer32ToDouble, "int32-to-double")
 };
 
 
-class LNumberTagI: public LTemplateInstruction<1, 1> {
+class LNumberTagI: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LNumberTagI(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(NumberTagI, "number-tag-i")
 };
 
 
 class LNumberTagD: public LTemplateInstruction<1, 1, 1> {
  public:
-  explicit LNumberTagD(LOperand* value, LOperand* temp) {
+  LNumberTagD(LOperand* value, LOperand* temp) {
     inputs_[0] = value;
     temps_[0] = temp;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(NumberTagD, "number-tag-d")
 };
 
 
 // Sometimes truncating conversion from a tagged value to an int32.
 class LDoubleToI: public LTemplateInstruction<1, 1, 1> {
@@ skipping 18 matching lines @@
     temps_[0] = temp;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(TaggedToI, "tagged-to-i")
   DECLARE_HYDROGEN_ACCESSOR(Change)
 
   bool truncating() { return hydrogen()->CanTruncateToInt32(); }
 };
 
 
-class LSmiTag: public LTemplateInstruction<1, 1> {
+class LSmiTag: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LSmiTag(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(SmiTag, "smi-tag")
 };
 
 
-class LNumberUntagD: public LTemplateInstruction<1, 1> {
+class LNumberUntagD: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LNumberUntagD(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(NumberUntagD, "double-untag")
 };
 
 
-class LSmiUntag: public LTemplateInstruction<1, 1> {
+class LSmiUntag: public LTemplateInstruction<1, 1, 0> {
  public:
   LSmiUntag(LOperand* value, bool needs_check)
       : needs_check_(needs_check) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(SmiUntag, "smi-untag")
 
   bool needs_check() const { return needs_check_; }
 
@@ skipping 78 matching lines @@
 
 class LStoreKeyedGeneric: public LStoreKeyed {
  public:
   LStoreKeyedGeneric(LOperand* obj, LOperand* key, LOperand* val)
       : LStoreKeyed(obj, key, val) { }
 
   DECLARE_CONCRETE_INSTRUCTION(StoreKeyedGeneric, "store-keyed-generic")
 };
 
 
-class LCheckFunction: public LTemplateInstruction<0, 1> {
+class LStringCharCodeAt: public LTemplateInstruction<1, 2, 0> {
+ public:
+  LStringCharCodeAt(LOperand* string, LOperand* index) {
+    inputs_[0] = string;
+    inputs_[1] = index;
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(StringCharCodeAt, "string-char-code-at")
+  DECLARE_HYDROGEN_ACCESSOR(StringCharCodeAt)
+
+  LOperand* string() { return inputs_[0]; }
+  LOperand* index() { return inputs_[1]; }
+};
+
+
+class LStringLength: public LTemplateInstruction<1, 1, 0> {
+ public:
+  explicit LStringLength(LOperand* string) {
+    inputs_[0] = string;
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(StringLength, "string-length")
+  DECLARE_HYDROGEN_ACCESSOR(StringLength)
+
+  LOperand* string() { return inputs_[0]; }
+};
+
+
+class LCheckFunction: public LTemplateInstruction<0, 1, 0> {
  public:
   explicit LCheckFunction(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CheckFunction, "check-function")
   DECLARE_HYDROGEN_ACCESSOR(CheckFunction)
 };
 
 
 class LCheckInstanceType: public LTemplateInstruction<0, 1, 1> {
  public:
   LCheckInstanceType(LOperand* value, LOperand* temp) {
     inputs_[0] = value;
     temps_[0] = temp;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CheckInstanceType, "check-instance-type")
   DECLARE_HYDROGEN_ACCESSOR(CheckInstanceType)
 };
 
 
-class LCheckMap: public LTemplateInstruction<0, 1> {
+class LCheckMap: public LTemplateInstruction<0, 1, 0> {
  public:
   explicit LCheckMap(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CheckMap, "check-map")
   DECLARE_HYDROGEN_ACCESSOR(CheckMap)
 };
 
 
 class LCheckPrototypeMaps: public LTemplateInstruction<0, 0, 1> {
  public:
   explicit LCheckPrototypeMaps(LOperand* temp)  {
     temps_[0] = temp;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CheckPrototypeMaps, "check-prototype-maps")
   DECLARE_HYDROGEN_ACCESSOR(CheckPrototypeMaps)
 
   Handle<JSObject> prototype() const { return hydrogen()->prototype(); }
   Handle<JSObject> holder() const { return hydrogen()->holder(); }
 };
 
 
-class LCheckSmi: public LTemplateInstruction<0, 1> {
+class LCheckSmi: public LTemplateInstruction<0, 1, 0> {
  public:
   LCheckSmi(LOperand* value, Condition condition)
       : condition_(condition) {
     inputs_[0] = value;
   }
 
   Condition condition() const { return condition_; }
 
   virtual void CompileToNative(LCodeGen* generator);
   virtual const char* Mnemonic() const {
@@ skipping 28 matching lines @@
 
 class LFunctionLiteral: public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(FunctionLiteral, "function-literal")
   DECLARE_HYDROGEN_ACCESSOR(FunctionLiteral)
 
   Handle<SharedFunctionInfo> shared_info() { return hydrogen()->shared_info(); }
 };
 
 
-class LTypeof: public LTemplateInstruction<1, 1> {
+class LTypeof: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LTypeof(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(Typeof, "typeof")
 };
 
 
-class LTypeofIs: public LTemplateInstruction<1, 1> {
+class LTypeofIs: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LTypeofIs(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(TypeofIs, "typeof-is")
   DECLARE_HYDROGEN_ACCESSOR(TypeofIs)
 
   Handle<String> type_literal() { return hydrogen()->type_literal(); }
 
   virtual void PrintDataTo(StringStream* stream);
 };
 
 
-class LTypeofIsAndBranch: public LControlInstruction<1> {
+class LTypeofIsAndBranch: public LControlInstruction<1, 0> {
  public:
   explicit LTypeofIsAndBranch(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(TypeofIsAndBranch, "typeof-is-and-branch")
   DECLARE_HYDROGEN_ACCESSOR(TypeofIs)
 
   Handle<String> type_literal() { return hydrogen()->type_literal(); }
 
   virtual void PrintDataTo(StringStream* stream);
 };
 
 
-class LDeleteProperty: public LTemplateInstruction<1, 2> {
+class LDeleteProperty: public LTemplateInstruction<1, 2, 0> {
  public:
   LDeleteProperty(LOperand* obj, LOperand* key) {
     inputs_[0] = obj;
     inputs_[1] = key;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(DeleteProperty, "delete-property")
 
   LOperand* object() { return inputs_[0]; }
   LOperand* key() { return inputs_[1]; }
@@ skipping 245 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_LITHIUM_IA32_H_