X64 Crankshaft: Ported lots of boilerplate code.

src/x64/lithium-x64.h

Index: src/x64/lithium-x64.h
diff --git a/src/x64/lithium-x64.h b/src/x64/lithium-x64.h
index ad23f6156c63deb5839f380a8cc643f1e72d8c35..374bf24184e53f3323b158908108c14a97a4084a 100644
--- a/src/x64/lithium-x64.h
+++ b/src/x64/lithium-x64.h
@@ -43,23 +43,225 @@ class LCodeGen;
 // Type hierarchy:
 //
 // LInstruction
+//   LAccessArgumentsAt
+//   LArgumentsElements
+//   LArgumentsLength
+//   LBinaryOperation
+//     LAddI
+//     LApplyArguments
+//     LArithmeticD
+//     LArithmeticT
+//     LBitI
+//     LBoundsCheck
+//     LCmpID
+//     LCmpIDAndBranch
+//     LCmpJSObjectEq
+//     LCmpJSObjectEqAndBranch
+//     LCmpT
+//     LDivI
+//     LInstanceOf
+//     LInstanceOfAndBranch
+//     LInstanceOfKnownGlobal
+//     LLoadKeyedFastElement
+//     LLoadKeyedGeneric
+//     LModI
+//     LMulI
+//     LPower
+//     LShiftI
+//     LSubI
+//   LCallConstantFunction
+//   LCallFunction
+//   LCallGlobal
+//   LCallKeyed
+//   LCallKnownGlobal
+//   LCallNamed
+//   LCallRuntime
+//   LCallStub
+//   LCheckPrototypeMaps
+//   LConstant
+//     LConstantD
+//     LConstantI
+//     LConstantT
 //   LDeoptimize
+//   LFunctionLiteral
 //   LGap
 //     LLabel
+//   LGlobalObject
+//   LGlobalReceiver
 //   LGoto
 //   LLazyBailout
+//   LLoadGlobal
+//   LMaterializedLiteral
+//     LArrayLiteral
+//     LObjectLiteral
+//     LRegExpLiteral
 //   LOsrEntry
+//   LParameter
+//   LRegExpConstructResult
+//   LStackCheck
+//   LStoreKeyed
+//     LStoreKeyedFastElement
+//     LStoreKeyedGeneric
+//   LStoreNamed
+//     LStoreNamedField
+//     LStoreNamedGeneric
+//   LUnaryOperation
+//     LBitNotI
+//     LBranch
+//     LCallNew
+//     LCheckFunction
+//     LCheckInstanceType
+//     LCheckMap
+//     LCheckSmi
+//     LClassOfTest
+//     LClassOfTestAndBranch
+//     LDeleteProperty
+//     LDoubleToI
+//     LFixedArrayLength
+//     LHasCachedArrayIndex
+//     LHasCachedArrayIndexAndBranch
+//     LHasInstanceType
+//     LHasInstanceTypeAndBranch
+//     LInteger32ToDouble
+//     LIsNull
+//     LIsNullAndBranch
+//     LIsObject
+//     LIsObjectAndBranch
+//     LIsSmi
+//     LIsSmiAndBranch
+//     LJSArrayLength
+//     LLoadNamedField
+//     LLoadNamedGeneric
+//     LLoadFunctionPrototype
+//     LNumberTagD
+//     LNumberTagI
+//     LPushArgument
+//     LReturn
+//     LSmiTag
+//     LStoreGlobal
+//     LTaggedToI
+//     LThrow
+//     LTypeof
+//     LTypeofIs
+//     LTypeofIsAndBranch
+//     LUnaryMathOperation
+//     LValueOf
+//   LUnknownOSRValue
 
 #define LITHIUM_ALL_INSTRUCTION_LIST(V)         \
+  V(BinaryOperation)                            \
+  V(Constant)                                   \
+  V(Call)                                       \
+  V(MaterializedLiteral)                        \
+  V(StoreKeyed)                                 \
+  V(StoreNamed)                                 \
+  V(UnaryOperation)                             \
   LITHIUM_CONCRETE_INSTRUCTION_LIST(V)
 
+
 #define LITHIUM_CONCRETE_INSTRUCTION_LIST(V)    \
+  V(AccessArgumentsAt)                          \
+  V(AddI)                                       \
+  V(ApplyArguments)                             \
+  V(ArgumentsElements)                          \
+  V(ArgumentsLength)                            \
+  V(ArithmeticD)                                \
+  V(ArithmeticT)                                \
+  V(ArrayLiteral)                               \
+  V(BitI)                                       \
+  V(BitNotI)                                    \
+  V(BoundsCheck)                                \
+  V(Branch)                                     \
+  V(CallConstantFunction)                       \
+  V(CallFunction)                               \
+  V(CallGlobal)                                 \
+  V(CallKeyed)                                  \
+  V(CallKnownGlobal)                            \
+  V(CallNamed)                                  \
+  V(CallNew)                                    \
+  V(CallRuntime)                                \
+  V(CallStub)                                   \
+  V(CheckFunction)                              \
+  V(CheckInstanceType)                          \
+  V(CheckMap)                                   \
+  V(CheckPrototypeMaps)                         \
+  V(CheckSmi)                                   \
+  V(CmpID)                                      \
+  V(CmpIDAndBranch)                             \
+  V(CmpJSObjectEq)                              \
+  V(CmpJSObjectEqAndBranch)                     \
+  V(CmpMapAndBranch)                            \
+  V(CmpT)                                       \
+  V(CmpTAndBranch)                              \
+  V(ConstantD)                                  \
+  V(ConstantI)                                  \
+  V(ConstantT)                                  \
+  V(DeleteProperty)                             \
   V(Deoptimize)                                 \
+  V(DivI)                                       \
+  V(DoubleToI)                                  \
+  V(FunctionLiteral)                            \
   V(Gap)                                        \
+  V(GlobalObject)                               \
+  V(GlobalReceiver)                             \
   V(Goto)                                       \
+  V(FixedArrayLength)                           \
+  V(InstanceOf)                                 \
+  V(InstanceOfAndBranch)                        \
+  V(InstanceOfKnownGlobal)                      \
+  V(Integer32ToDouble)                          \
+  V(IsNull)                                     \
+  V(IsNullAndBranch)                            \
+  V(IsObject)                                   \
+  V(IsObjectAndBranch)                          \
+  V(IsSmi)                                      \
+  V(IsSmiAndBranch)                             \
+  V(JSArrayLength)                              \
+  V(HasInstanceType)                            \
+  V(HasInstanceTypeAndBranch)                   \
+  V(HasCachedArrayIndex)                        \
+  V(HasCachedArrayIndexAndBranch)               \
+  V(ClassOfTest)                                \
+  V(ClassOfTestAndBranch)                       \
   V(Label)                                      \
   V(LazyBailout)                                \
-  V(OsrEntry)
+  V(LoadElements)                               \
+  V(LoadGlobal)                                 \
+  V(LoadKeyedFastElement)                       \
+  V(LoadKeyedGeneric)                           \
+  V(LoadNamedField)                             \
+  V(LoadNamedGeneric)                           \
+  V(LoadFunctionPrototype)                      \
+  V(ModI)                                       \
+  V(MulI)                                       \
+  V(NumberTagD)                                 \
+  V(NumberTagI)                                 \
+  V(NumberUntagD)                               \
+  V(ObjectLiteral)                              \
+  V(OsrEntry)                                   \
+  V(Parameter)                                  \
+  V(Power)                                      \
+  V(PushArgument)                               \
+  V(RegExpLiteral)                              \
+  V(Return)                                     \
+  V(ShiftI)                                     \
+  V(SmiTag)                                     \
+  V(SmiUntag)                                   \
+  V(StackCheck)                                 \
+  V(StoreGlobal)                                \
+  V(StoreKeyedFastElement)                      \
+  V(StoreKeyedGeneric)                          \
+  V(StoreNamedField)                            \
+  V(StoreNamedGeneric)                          \
+  V(SubI)                                       \
+  V(TaggedToI)                                  \
+  V(Throw)                                      \
+  V(Typeof)                                     \
+  V(TypeofIs)                                   \
+  V(TypeofIsAndBranch)                          \
+  V(UnaryMathOperation)                         \
+  V(UnknownOSRValue)                            \
+  V(ValueOf)
 
 
 #define DECLARE_INSTRUCTION(type)                \
@@ -91,7 +293,8 @@ class LInstruction: public ZoneObject {
   virtual void CompileToNative(LCodeGen* generator) = 0;
   virtual const char* Mnemonic() const = 0;
   virtual void PrintTo(StringStream* stream);
-  virtual void PrintDataTo(StringStream* stream) { }
+  virtual void PrintDataTo(StringStream* stream) = 0;
+  virtual void PrintOutputOperandTo(StringStream* stream) = 0;
 
   // Declare virtual type testers.
 #define DECLARE_DO(type) virtual bool Is##type() const { return false; }
@@ -130,32 +333,61 @@ class LInstruction: public ZoneObject {
 };
 
 
-template <int Result>
-class LTemplateInstruction: public LInstruction { };
+template<typename T, int N>
+class OperandContainer {
+ public:
+  OperandContainer() {
+    for (int i = 0; i < N; i++) elems_[i] = NULL;
+  }
+  int length() const { return N; }
+  T at(int i) const { return elems_[i]; }
+  void set_at(int i, T value) { elems_[i] = value; }
+ private:
+  T elems_[N];
+};
 
 
-template<>
-class LTemplateInstruction<0>: public LInstruction {
-  virtual bool HasResult() const { return false; }
+template<typename T>
+class OperandContainer<T, 0> {
+ public:
+  int length() const { return 0; }
+  T at(int i) const {
+    UNREACHABLE();
+    return NULL;
+  }
+  void set_at(int i, T value) {
+    UNREACHABLE();
+  }
 };
 
 
-template<>
-class LTemplateInstruction<1>: public LInstruction {
+template<int R, int I, int T>
+class LTemplateInstruction: public LInstruction {
  public:
-  static LTemplateInstruction<1>* cast(LInstruction* instr)  {
-    ASSERT(instr->HasResult());
-    return reinterpret_cast<LTemplateInstruction<1>*>(instr);
-  }
-  void set_result(LOperand* operand) { result_.set(operand); }
-  LOperand* result() const { return result_.get(); }
-  virtual bool HasResult() const { return result_.is_set(); }
+  // Allow 0 or 1 output operands.
+  STATIC_ASSERT(R == 0 || R == 1);
+  virtual bool HasResult() const { return R != 0; }
+  void set_result(LOperand* operand) { outputs_.set_at(0, operand); }
+  LOperand* result() const { return outputs_.at(0); }
+
+  int InputCount() const { return inputs_.length(); }
+  LOperand* InputAt(int i) const { return inputs_.at(i); }
+  void SetInputAt(int i, LOperand* operand) { inputs_.set_at(i, operand); }
+
+  int TempCount() const { return temps_.length(); }
+  LOperand* TempAt(int i) const { return temps_.at(i); }
+
+  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintOutputOperandTo(StringStream* stream);
+
  private:
-  SetOncePointer<LOperand> result_;
+  OperandContainer<LOperand*, R> outputs_;
+  OperandContainer<LOperand*, I> inputs_;
+  OperandContainer<LOperand*, T> temps_;
 };
 
 
-class LGap: public LTemplateInstruction<0> {
+class LGap: public LTemplateInstruction<0, 0, 0> {
  public:
   explicit LGap(HBasicBlock* block)
       : block_(block) {
@@ -181,7 +413,7 @@ class LGap: public LTemplateInstruction<0> {
     LAST_INNER_POSITION = AFTER
   };
 
-  LParallelMove* GetOrCreateParallelMove(InnerPosition pos) {
+  LParallelMove* GetOrCreateParallelMove(InnerPosition pos)  {
     if (parallel_moves_[pos] == NULL) parallel_moves_[pos] = new LParallelMove;
     return parallel_moves_[pos];
   }
@@ -196,7 +428,7 @@ class LGap: public LTemplateInstruction<0> {
 };
 
 
-class LGoto: public LTemplateInstruction<0> {
+class LGoto: public LTemplateInstruction<0, 0, 0> {
  public:
   LGoto(int block_id, bool include_stack_check = false)
     : block_id_(block_id), include_stack_check_(include_stack_check) { }
@@ -214,7 +446,7 @@ class LGoto: public LTemplateInstruction<0> {
 };
 
 
-class LLazyBailout: public LTemplateInstruction<0> {
+class LLazyBailout: public LTemplateInstruction<0, 0, 0> {
  public:
   LLazyBailout() : gap_instructions_size_(0) { }
 
@@ -230,7 +462,7 @@ class LLazyBailout: public LTemplateInstruction<0> {
 };
 
 
-class LDeoptimize: public LTemplateInstruction<0> {
+class LDeoptimize: public LTemplateInstruction<0, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(Deoptimize, "deoptimize")
 };
@@ -258,144 +490,1532 @@ class LLabel: public LGap {
 };
 
 
-class LOsrEntry: public LTemplateInstruction<0> {
+class LParameter: public LTemplateInstruction<1, 0, 0> {
  public:
-  LOsrEntry();
-
-  DECLARE_CONCRETE_INSTRUCTION(OsrEntry, "osr-entry")
+  DECLARE_CONCRETE_INSTRUCTION(Parameter, "parameter")
+};
 
-  LOperand** SpilledRegisterArray() { return register_spills_; }
-  LOperand** SpilledDoubleRegisterArray() { return double_register_spills_; }
 
-  void MarkSpilledRegister(int allocation_index, LOperand* spill_operand);
-  void MarkSpilledDoubleRegister(int allocation_index,
-                                 LOperand* spill_operand);
+class LCallStub: public LTemplateInstruction<1, 0, 0> {
+ public:
+  DECLARE_CONCRETE_INSTRUCTION(CallStub, "call-stub")
+  DECLARE_HYDROGEN_ACCESSOR(CallStub)
 
- private:
-  // Arrays of spill slot operands for registers with an assigned spill
-  // slot, i.e., that must also be restored to the spill slot on OSR entry.
-  // NULL if the register has no assigned spill slot.  Indexed by allocation
-  // index.
-  LOperand* register_spills_[Register::kNumAllocatableRegisters];
-  LOperand* double_register_spills_[DoubleRegister::kNumAllocatableRegisters];
+  TranscendentalCache::Type transcendental_type() {
+    return hydrogen()->transcendental_type();
+  }
 };
 
 
-class LChunkBuilder;
-class LChunk: public ZoneObject {
+class LUnknownOSRValue: public LTemplateInstruction<1, 0, 0> {
  public:
-  explicit LChunk(HGraph* graph)
-    : spill_slot_count_(0),
-      graph_(graph),
-      instructions_(32),
-      pointer_maps_(8),
-      inlined_closures_(1) { }
+  DECLARE_CONCRETE_INSTRUCTION(UnknownOSRValue, "unknown-osr-value")
+};
 
-  int spill_slot_count() const { return spill_slot_count_; }
-  HGraph* graph() const { return graph_; }
-  const ZoneList<LInstruction*>* instructions() const { return &instructions_; }
-  const ZoneList<LPointerMap*>* pointer_maps() const { return &pointer_maps_; }
-  const ZoneList<Handle<JSFunction> >* inlined_closures() const {
-    return &inlined_closures_;
-  }
 
-  LOperand* GetNextSpillSlot(bool double_slot) {
-    UNIMPLEMENTED();
-    return NULL;
+template<int R>
+class LUnaryOperation: public LTemplateInstruction<R, 1, 0> {
+ public:
+  explicit LUnaryOperation<R>(LOperand* input) {
+    this->SetInputAt(0, input);
   }
 
-  LConstantOperand* DefineConstantOperand(HConstant* constant) {
-    UNIMPLEMENTED();
-    return NULL;
-  }
+  LOperand* input() const { return this->InputAt(0); }
+
+  DECLARE_INSTRUCTION(UnaryOperation)
+};
 
-  LLabel* GetLabel(int block_id) const {
-    UNIMPLEMENTED();
-    return NULL;
-  }
 
-  int GetParameterStackSlot(int index) const {
-    UNIMPLEMENTED();
-    return 0;
+template<int R>
+class LBinaryOperation: public LTemplateInstruction<R, 2, 0> {
+ public:
+  LBinaryOperation(LOperand* left, LOperand* right) {
+    this->SetInputAt(0, left);
+    this->SetInputAt(1, right);
   }
 
-  void AddGapMove(int index, LOperand* from, LOperand* to) { UNIMPLEMENTED(); }
+  DECLARE_INSTRUCTION(BinaryOperation)
 
-  LGap* GetGapAt(int index) const {
-    UNIMPLEMENTED();
-    return NULL;
+  LOperand* left() const { return this->InputAt(0); }
+  LOperand* right() const { return this->InputAt(1); }
+};
+
+
+class LApplyArguments: public LTemplateInstruction<1, 4, 0> {
+ public:
+  LApplyArguments(LOperand* function,
+                  LOperand* receiver,
+                  LOperand* length,
+                  LOperand* elements) {
+    this->SetInputAt(0, function);
+    this->SetInputAt(1, receiver);
+    this->SetInputAt(2, length);
+    this->SetInputAt(3, elements);
   }
 
-  bool IsGapAt(int index) const {
-    UNIMPLEMENTED();
-    return false;
+  DECLARE_CONCRETE_INSTRUCTION(ApplyArguments, "apply-arguments")
+
+  LOperand* function() const { return InputAt(0); }
+  LOperand* receiver() const { return InputAt(1); }
+  LOperand* length() const { return InputAt(2); }
+  LOperand* elements() const { return InputAt(3); }
+};
+
+
+class LAccessArgumentsAt: public LTemplateInstruction<1, 3, 0> {
+ public:
+  LAccessArgumentsAt(LOperand* arguments, LOperand* length, LOperand* index) {
+    this->SetInputAt(0, arguments);
+    this->SetInputAt(1, length);
+    this->SetInputAt(2, index);
   }
 
-  int NearestGapPos(int index) const {
-    UNIMPLEMENTED();
-    return 0;
+  DECLARE_CONCRETE_INSTRUCTION(AccessArgumentsAt, "access-arguments-at")
+
+  LOperand* arguments() const { return this->InputAt(0); }
+  LOperand* length() const { return this->InputAt(1); }
+  LOperand* index() const { return this->InputAt(2); }
+
+  virtual void PrintDataTo(StringStream* stream);
+};
+
+
+class LArgumentsLength: public LUnaryOperation<1> {
+ public:
+  explicit LArgumentsLength(LOperand* elements)
+      : LUnaryOperation<1>(elements) {}
+
+  DECLARE_CONCRETE_INSTRUCTION(ArgumentsLength, "arguments-length")
+};
+
+
+class LArgumentsElements: public LTemplateInstruction<1, 0, 0> {
+ public:
+  LArgumentsElements() { }
+
+  DECLARE_CONCRETE_INSTRUCTION(ArgumentsElements, "arguments-elements")
+};
+
+
+class LModI: public LBinaryOperation<1> {
+ public:
+  LModI(LOperand* left, LOperand* right) : LBinaryOperation<1>(left, right) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(ModI, "mod-i")
+  DECLARE_HYDROGEN_ACCESSOR(Mod)
+};
+
+
+class LDivI: public LBinaryOperation<1> {
+ public:
+  LDivI(LOperand* left, LOperand* right)
+      : LBinaryOperation<1>(left, right) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(DivI, "div-i")
+  DECLARE_HYDROGEN_ACCESSOR(Div)
+};
+
+
+class LMulI: public LBinaryOperation<1> {
+ public:
+  LMulI(LOperand* left, LOperand* right, LOperand* temp)
+      : LBinaryOperation<1>(left, right), temp_(temp) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(MulI, "mul-i")
+  DECLARE_HYDROGEN_ACCESSOR(Mul)
+
+  LOperand* temp() const { return temp_; }
+
+ private:
+  LOperand* temp_;
+};
+
+
+class LCmpID: public LBinaryOperation<1> {
+ public:
+  LCmpID(LOperand* left, LOperand* right)
+      : LBinaryOperation<1>(left, right) { }
+
+  Token::Value op() const { return hydrogen()->token(); }
+  bool is_double() const {
+    return hydrogen()->GetInputRepresentation().IsDouble();
   }
 
-  void MarkEmptyBlocks() { UNIMPLEMENTED(); }
+  DECLARE_CONCRETE_INSTRUCTION(CmpID, "cmp-id")
+  DECLARE_HYDROGEN_ACCESSOR(Compare)
+};
+
+
+class LCmpIDAndBranch: public LCmpID {
+ public:
+  LCmpIDAndBranch(LOperand* left,
+                  LOperand* right,
+                  int true_block_id,
+                  int false_block_id)
+      : LCmpID(left, right),
+        true_block_id_(true_block_id),
+        false_block_id_(false_block_id) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(CmpIDAndBranch, "cmp-id-and-branch")
+  virtual void PrintDataTo(StringStream* stream);
+  virtual bool IsControl() const { return true; }
 
-#ifdef DEBUG
-  void Verify() { }
-#endif
+  int true_block_id() const { return true_block_id_; }
+  int false_block_id() const { return false_block_id_; }
 
  private:
-  int spill_slot_count_;
-  HGraph* const graph_;
-  ZoneList<LInstruction*> instructions_;
-  ZoneList<LPointerMap*> pointer_maps_;
-  ZoneList<Handle<JSFunction> > inlined_closures_;
+  int true_block_id_;
+  int false_block_id_;
 };
 
 
-class LChunkBuilder BASE_EMBEDDED {
+class LUnaryMathOperation: public LUnaryOperation<1> {
  public:
-  LChunkBuilder(HGraph* graph, LAllocator* allocator)
-      : chunk_(NULL),
-        graph_(graph),
-        status_(UNUSED),
-        current_instruction_(NULL),
-        current_block_(NULL),
-        next_block_(NULL),
-        argument_count_(0),
-        allocator_(allocator),
-        position_(RelocInfo::kNoPosition),
-        instructions_pending_deoptimization_environment_(NULL),
-        pending_deoptimization_ast_id_(AstNode::kNoNumber) { }
+  explicit LUnaryMathOperation(LOperand* value)
+      : LUnaryOperation<1>(value) { }
 
-  // Build the sequence for the graph.
-  LChunk* Build();
+  DECLARE_CONCRETE_INSTRUCTION(UnaryMathOperation, "unary-math-operation")
+  DECLARE_HYDROGEN_ACCESSOR(UnaryMathOperation)
 
-  // Declare methods that deal with the individual node types.
-#define DECLARE_DO(type) LInstruction* Do##type(H##type* node) { \
-    UNIMPLEMENTED(); \
-    return NULL; \
-  }
-  HYDROGEN_CONCRETE_INSTRUCTION_LIST(DECLARE_DO)
-#undef DECLARE_DO
+  virtual void PrintDataTo(StringStream* stream);
+  BuiltinFunctionId op() const { return hydrogen()->op(); }
+};
+
+
+class LCmpJSObjectEq: public LBinaryOperation<1> {
+ public:
+  LCmpJSObjectEq(LOperand* left, LOperand* right)
+      : LBinaryOperation<1>(left, right) {}
+
+  DECLARE_CONCRETE_INSTRUCTION(CmpJSObjectEq, "cmp-jsobject-eq")
+};
+
+
+class LCmpJSObjectEqAndBranch: public LCmpJSObjectEq {
+ public:
+  LCmpJSObjectEqAndBranch(LOperand* left,
+                          LOperand* right,
+                          int true_block_id,
+                          int false_block_id)
+      : LCmpJSObjectEq(left, right),
+        true_block_id_(true_block_id),
+        false_block_id_(false_block_id) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(CmpJSObjectEqAndBranch,
+                               "cmp-jsobject-eq-and-branch")
+
+  int true_block_id() const { return true_block_id_; }
+  int false_block_id() const { return false_block_id_; }
 
  private:
-  enum Status {
-    UNUSED,
-    BUILDING,
-    DONE,
-    ABORTED
-  };
+  int true_block_id_;
+  int false_block_id_;
+};
 
-  LChunk* chunk() const { return chunk_; }
-  HGraph* graph() const { return graph_; }
 
-  bool is_unused() const { return status_ == UNUSED; }
-  bool is_building() const { return status_ == BUILDING; }
-  bool is_done() const { return status_ == DONE; }
-  bool is_aborted() const { return status_ == ABORTED; }
+class LIsNull: public LUnaryOperation<1> {
+ public:
+  explicit LIsNull(LOperand* value) : LUnaryOperation<1>(value) { }
 
-  void Abort(const char* format, ...);
+  DECLARE_CONCRETE_INSTRUCTION(IsNull, "is-null")
+  DECLARE_HYDROGEN_ACCESSOR(IsNull)
+
+  bool is_strict() const { return hydrogen()->is_strict(); }
+};
+
+
+class LIsNullAndBranch: public LIsNull {
+ public:
+  LIsNullAndBranch(LOperand* value,
+                   LOperand* temp,
+                   int true_block_id,
+                   int false_block_id)
+      : LIsNull(value),
+        temp_(temp),
+        true_block_id_(true_block_id),
+        false_block_id_(false_block_id) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(IsNullAndBranch, "is-null-and-branch")
+  virtual void PrintDataTo(StringStream* stream);
+  virtual bool IsControl() const { return true; }
+
+  int true_block_id() const { return true_block_id_; }
+  int false_block_id() const { return false_block_id_; }
+
+  LOperand* temp() const { return temp_; }
+
+ private:
+  LOperand* temp_;
+  int true_block_id_;
+  int false_block_id_;
+};
+
+
+class LIsObject: public LUnaryOperation<1> {
+ public:
+  LIsObject(LOperand* value, LOperand* temp)
+      : LUnaryOperation<1>(value), temp_(temp) {}
+
+  DECLARE_CONCRETE_INSTRUCTION(IsObject, "is-object")
+
+  LOperand* temp() const { return temp_; }
+
+ private:
+  LOperand* temp_;
+};
+
+
+class LIsObjectAndBranch: public LIsObject {
+ public:
+  LIsObjectAndBranch(LOperand* value,
+                     LOperand* temp,
+                     LOperand* temp2,
+                     int true_block_id,
+                     int false_block_id)
+      : LIsObject(value, temp),
+        temp2_(temp2),
+        true_block_id_(true_block_id),
+        false_block_id_(false_block_id) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(IsObjectAndBranch, "is-object-and-branch")
+  virtual void PrintDataTo(StringStream* stream);
+  virtual bool IsControl() const { return true; }
+
+  int true_block_id() const { return true_block_id_; }
+  int false_block_id() const { return false_block_id_; }
+
+  LOperand* temp2() const { return temp2_; }
+
+ private:
+  LOperand* temp2_;
+  int true_block_id_;
+  int false_block_id_;
+};
+
+
+class LIsSmi: public LUnaryOperation<1> {
+ public:
+  explicit LIsSmi(LOperand* value) : LUnaryOperation<1>(value) {}
+
+  DECLARE_CONCRETE_INSTRUCTION(IsSmi, "is-smi")
+  DECLARE_HYDROGEN_ACCESSOR(IsSmi)
+};
+
+
+class LIsSmiAndBranch: public LIsSmi {
+ public:
+  LIsSmiAndBranch(LOperand* value,
+                  int true_block_id,
+                  int false_block_id)
+      : LIsSmi(value),
+        true_block_id_(true_block_id),
+        false_block_id_(false_block_id) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(IsSmiAndBranch, "is-smi-and-branch")
+  virtual void PrintDataTo(StringStream* stream);
+  virtual bool IsControl() const { return true; }
+
+  int true_block_id() const { return true_block_id_; }
+  int false_block_id() const { return false_block_id_; }
+
+ private:
+  int true_block_id_;
+  int false_block_id_;
+};
+
+
+class LHasInstanceType: public LUnaryOperation<1> {
+ public:
+  explicit LHasInstanceType(LOperand* value)
+      : LUnaryOperation<1>(value) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(HasInstanceType, "has-instance-type")
+  DECLARE_HYDROGEN_ACCESSOR(HasInstanceType)
+
+  InstanceType TestType();  // The type to test against when generating code.
+  Condition BranchCondition();  // The branch condition for 'true'.
+};
+
+
+class LHasInstanceTypeAndBranch: public LHasInstanceType {
+ public:
+  LHasInstanceTypeAndBranch(LOperand* value,
+                            LOperand* temporary,
+                            int true_block_id,
+                            int false_block_id)
+      : LHasInstanceType(value),
+        temp_(temporary),
+        true_block_id_(true_block_id),
+        false_block_id_(false_block_id) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(HasInstanceTypeAndBranch,
+                               "has-instance-type-and-branch")
+  virtual void PrintDataTo(StringStream* stream);
+  virtual bool IsControl() const { return true; }
+
+  int true_block_id() const { return true_block_id_; }
+  int false_block_id() const { return false_block_id_; }
+
+  LOperand* temp() { return temp_; }
+
+ private:
+  LOperand* temp_;
+  int true_block_id_;
+  int false_block_id_;
+};
+
+
+class LHasCachedArrayIndex: public LUnaryOperation<1> {
+ public:
+  explicit LHasCachedArrayIndex(LOperand* value) : LUnaryOperation<1>(value) {}
+
+  DECLARE_CONCRETE_INSTRUCTION(HasCachedArrayIndex, "has-cached-array-index")
+  DECLARE_HYDROGEN_ACCESSOR(HasCachedArrayIndex)
+};
+
+
+class LHasCachedArrayIndexAndBranch: public LHasCachedArrayIndex {
+ public:
+  LHasCachedArrayIndexAndBranch(LOperand* value,
+                                int true_block_id,
+                                int false_block_id)
+      : LHasCachedArrayIndex(value),
+        true_block_id_(true_block_id),
+        false_block_id_(false_block_id) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(HasCachedArrayIndexAndBranch,
+                               "has-cached-array-index-and-branch")
+  virtual void PrintDataTo(StringStream* stream);
+  virtual bool IsControl() const { return true; }
+
+  int true_block_id() const { return true_block_id_; }
+  int false_block_id() const { return false_block_id_; }
+
+ private:
+  int true_block_id_;
+  int false_block_id_;
+};
+
+
+class LClassOfTest: public LUnaryOperation<1> {
+ public:
+  LClassOfTest(LOperand* value, LOperand* temp)
+      : LUnaryOperation<1>(value), temporary_(temp) {}
+
+  DECLARE_CONCRETE_INSTRUCTION(ClassOfTest, "class-of-test")
+  DECLARE_HYDROGEN_ACCESSOR(ClassOfTest)
+
+  virtual void PrintDataTo(StringStream* stream);
+
+  LOperand* temporary() { return temporary_; }
+
+ private:
+  LOperand* temporary_;
+};
+
+
+class LClassOfTestAndBranch: public LClassOfTest {
+ public:
+  LClassOfTestAndBranch(LOperand* value,
+                        LOperand* temporary,
+                        LOperand* temporary2,
+                        int true_block_id,
+                        int false_block_id)
+      : LClassOfTest(value, temporary),
+        temporary2_(temporary2),
+        true_block_id_(true_block_id),
+        false_block_id_(false_block_id) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(ClassOfTestAndBranch,
+                               "class-of-test-and-branch")
+  virtual void PrintDataTo(StringStream* stream);
+  virtual bool IsControl() const { return true; }
+
+  int true_block_id() const { return true_block_id_; }
+  int false_block_id() const { return false_block_id_; }
+  LOperand* temporary2() { return temporary2_; }
+
+ private:
+  LOperand* temporary2_;
+  int true_block_id_;
+  int false_block_id_;
+};
+
+
+class LCmpT: public LBinaryOperation<1> {
+ public:
+  LCmpT(LOperand* left, LOperand* right) : LBinaryOperation<1>(left, right) {}
+
+  DECLARE_CONCRETE_INSTRUCTION(CmpT, "cmp-t")
+  DECLARE_HYDROGEN_ACCESSOR(Compare)
+
+  Token::Value op() const { return hydrogen()->token(); }
+};
+
+
+class LCmpTAndBranch: public LCmpT {
+ public:
+  LCmpTAndBranch(LOperand* left,
+                 LOperand* right,
+                 int true_block_id,
+                 int false_block_id)
+      : LCmpT(left, right),
+        true_block_id_(true_block_id),
+        false_block_id_(false_block_id) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(CmpTAndBranch, "cmp-t-and-branch")
+
+  int true_block_id() const { return true_block_id_; }
+  int false_block_id() const { return false_block_id_; }
+
+ private:
+  int true_block_id_;
+  int false_block_id_;
+};
+
+
+class LInstanceOf: public LBinaryOperation<1> {
+ public:
+  LInstanceOf(LOperand* left, LOperand* right)
+      : LBinaryOperation<1>(left, right) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(InstanceOf, "instance-of")
+};
+
+
+class LInstanceOfAndBranch: public LInstanceOf {
+ public:
+  LInstanceOfAndBranch(LOperand* left,
+                       LOperand* right,
+                       int true_block_id,
+                       int false_block_id)
+      : LInstanceOf(left, right),
+        true_block_id_(true_block_id),
+        false_block_id_(false_block_id) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(InstanceOfAndBranch, "instance-of-and-branch")
+
+  int true_block_id() const { return true_block_id_; }
+  int false_block_id() const { return false_block_id_; }
+
+ private:
+  int true_block_id_;
+  int false_block_id_;
+};
+
+
+class LInstanceOfKnownGlobal: public LUnaryOperation<1> {
+ public:
+  LInstanceOfKnownGlobal(LOperand* left, LOperand* temp)
+      : LUnaryOperation<1>(left), temp_(temp) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(InstanceOfKnownGlobal,
+                               "instance-of-known-global")
+  DECLARE_HYDROGEN_ACCESSOR(InstanceOfKnownGlobal)
+
+  Handle<JSFunction> function() const { return hydrogen()->function(); }
+  LOperand* temp() const { return temp_; }
+
+ private:
+  LOperand* temp_;
+};
+
+
+class LBoundsCheck: public LBinaryOperation<0> {
+ public:
+  LBoundsCheck(LOperand* index, LOperand* length)
+      : LBinaryOperation<0>(index, length) { }
+
+  LOperand* index() const { return left(); }
+  LOperand* length() const { return right(); }
+
+  DECLARE_CONCRETE_INSTRUCTION(BoundsCheck, "bounds-check")
+};
+
+
+class LBitI: public LBinaryOperation<1> {
+ public:
+  LBitI(Token::Value op, LOperand* left, LOperand* right)
+      : LBinaryOperation<1>(left, right), op_(op) { }
+
+  Token::Value op() const { return op_; }
+
+  DECLARE_CONCRETE_INSTRUCTION(BitI, "bit-i")
+
+ private:
+  Token::Value op_;
+};
+
+
+class LShiftI: public LBinaryOperation<1> {
+ public:
+  LShiftI(Token::Value op, LOperand* left, LOperand* right, bool can_deopt)
+      : LBinaryOperation<1>(left, right), op_(op), can_deopt_(can_deopt) { }
+
+  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 LBinaryOperation<1> {
+ public:
+  LSubI(LOperand* left, LOperand* right)
+      : LBinaryOperation<1>(left, right) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(SubI, "sub-i")
+  DECLARE_HYDROGEN_ACCESSOR(Sub)
+};
+
+
+class LConstant: public LTemplateInstruction<1, 0, 0> {
+  DECLARE_INSTRUCTION(Constant)
+};
+
+
+class LConstantI: public LConstant {
+ public:
+  explicit LConstantI(int32_t value) : value_(value) { }
+  int32_t value() const { return value_; }
+
+  DECLARE_CONCRETE_INSTRUCTION(ConstantI, "constant-i")
+
+ private:
+  int32_t value_;
+};
+
+
+class LConstantD: public LConstant {
+ public:
+  explicit LConstantD(double value) : value_(value) { }
+  double value() const { return value_; }
+
+  DECLARE_CONCRETE_INSTRUCTION(ConstantD, "constant-d")
+
+ private:
+  double value_;
+};
+
+
+class LConstantT: public LConstant {
+ public:
+  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 LUnaryOperation<0> {
+ public:
+  LBranch(LOperand* input, int true_block_id, int false_block_id)
+      : LUnaryOperation<0>(input),
+        true_block_id_(true_block_id),
+        false_block_id_(false_block_id) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(Branch, "branch")
+  DECLARE_HYDROGEN_ACCESSOR(Value)
+
+  virtual void PrintDataTo(StringStream* stream);
+  virtual bool IsControl() const { return true; }
+
+  int true_block_id() const { return true_block_id_; }
+  int false_block_id() const { return false_block_id_; }
+
+ private:
+  int true_block_id_;
+  int false_block_id_;
+};
+
+
+class LCmpMapAndBranch: public LUnaryOperation<0> {
+ public:
+  explicit LCmpMapAndBranch(LOperand* value) : LUnaryOperation<0>(value) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(CmpMapAndBranch, "cmp-map-and-branch")
+  DECLARE_HYDROGEN_ACCESSOR(CompareMapAndBranch)
+
+  virtual bool IsControl() const { return true; }
+
+  Handle<Map> map() const { return hydrogen()->map(); }
+  int true_block_id() const {
+    return hydrogen()->true_destination()->block_id();
+  }
+  int false_block_id() const {
+    return hydrogen()->false_destination()->block_id();
+  }
+};
+
+
+class LJSArrayLength: public LUnaryOperation<1> {
+ public:
+  explicit LJSArrayLength(LOperand* input) : LUnaryOperation<1>(input) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(JSArrayLength, "js-array-length")
+  DECLARE_HYDROGEN_ACCESSOR(JSArrayLength)
+};
+
+
+class LFixedArrayLength: public LUnaryOperation<1> {
+ public:
+  explicit LFixedArrayLength(LOperand* input) : LUnaryOperation<1>(input) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(FixedArrayLength, "fixed-array-length")
+  DECLARE_HYDROGEN_ACCESSOR(FixedArrayLength)
+};
+
+
+class LValueOf: public LUnaryOperation<1> {
+ public:
+  LValueOf(LOperand* input, LOperand* temporary)
+      : LUnaryOperation<1>(input), temporary_(temporary) { }
+
+  LOperand* temporary() const { return temporary_; }
+
+  DECLARE_CONCRETE_INSTRUCTION(ValueOf, "value-of")
+  DECLARE_HYDROGEN_ACCESSOR(ValueOf)
+
+ private:
+  LOperand* temporary_;
+};
+
+
+class LThrow: public LUnaryOperation<1> {
+ public:
+  explicit LThrow(LOperand* value) : LUnaryOperation<1>(value) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(Throw, "throw")
+};
+
+
+class LBitNotI: public LUnaryOperation<1> {
+ public:
+  explicit LBitNotI(LOperand* input) : LUnaryOperation<1>(input) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(BitNotI, "bit-not-i")
+};
+
+
+class LAddI: public LBinaryOperation<1> {
+ public:
+  LAddI(LOperand* left, LOperand* right)
+      : LBinaryOperation<1>(left, right) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(AddI, "add-i")
+  DECLARE_HYDROGEN_ACCESSOR(Add)
+};
+
+
+class LPower: public LBinaryOperation<1> {
+ public:
+  LPower(LOperand* left, LOperand* right)
+      : LBinaryOperation<1>(left, right) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(Power, "power")
+  DECLARE_HYDROGEN_ACCESSOR(Power)
+};
+
+
+class LArithmeticD: public LBinaryOperation<1> {
+ public:
+  LArithmeticD(Token::Value op, LOperand* left, LOperand* right)
+      : LBinaryOperation<1>(left, right), op_(op) { }
+
+  Token::Value op() const { return op_; }
+
+  virtual void CompileToNative(LCodeGen* generator);
+  virtual const char* Mnemonic() const;
+
+ private:
+  Token::Value op_;
+};
+
+
+class LArithmeticT: public LBinaryOperation<1> {
+ public:
+  LArithmeticT(Token::Value op, LOperand* left, LOperand* right)
+      : LBinaryOperation<1>(left, right), op_(op) { }
+
+  virtual void CompileToNative(LCodeGen* generator);
+  virtual const char* Mnemonic() const;
+
+  Token::Value op() const { return op_; }
+
+ private:
+  Token::Value op_;
+};
+
+
+class LReturn: public LUnaryOperation<0> {
+ public:
+  explicit LReturn(LOperand* use) : LUnaryOperation<0>(use) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(Return, "return")
+};
+
+
+class LLoadNamedField: public LUnaryOperation<1> {
+ public:
+  explicit LLoadNamedField(LOperand* object) : LUnaryOperation<1>(object) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(LoadNamedField, "load-named-field")
+  DECLARE_HYDROGEN_ACCESSOR(LoadNamedField)
+};
+
+
+class LLoadNamedGeneric: public LUnaryOperation<1> {
+ public:
+  explicit LLoadNamedGeneric(LOperand* object) : LUnaryOperation<1>(object) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(LoadNamedGeneric, "load-named-generic")
+  DECLARE_HYDROGEN_ACCESSOR(LoadNamedGeneric)
+
+  LOperand* object() const { return input(); }
+  Handle<Object> name() const { return hydrogen()->name(); }
+};
+
+
+class LLoadFunctionPrototype: public LUnaryOperation<1> {
+ public:
+  LLoadFunctionPrototype(LOperand* function, LOperand* temporary)
+      : LUnaryOperation<1>(function), temporary_(temporary) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(LoadFunctionPrototype, "load-function-prototype")
+  DECLARE_HYDROGEN_ACCESSOR(LoadFunctionPrototype)
+
+  LOperand* function() const { return input(); }
+  LOperand* temporary() const { return temporary_; }
+
+ private:
+  LOperand* temporary_;
+};
+
+
+class LLoadElements: public LUnaryOperation<1> {
+ public:
+  explicit LLoadElements(LOperand* obj) : LUnaryOperation<1>(obj) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(LoadElements, "load-elements")
+};
+
+
+class LLoadKeyedFastElement: public LBinaryOperation<1> {
+ public:
+  LLoadKeyedFastElement(LOperand* elements, LOperand* key)
+      : LBinaryOperation<1>(elements, key) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(LoadKeyedFastElement, "load-keyed-fast-element")
+  DECLARE_HYDROGEN_ACCESSOR(LoadKeyedFastElement)
+
+  LOperand* elements() const { return left(); }
+  LOperand* key() const { return right(); }
+};
+
+
+class LLoadKeyedGeneric: public LBinaryOperation<1> {
+ public:
+  LLoadKeyedGeneric(LOperand* obj, LOperand* key)
+      : LBinaryOperation<1>(obj, key) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(LoadKeyedGeneric, "load-keyed-generic")
+
+  LOperand* object() const { return left(); }
+  LOperand* key() const { return right(); }
+};
+
+
+class LLoadGlobal: public LTemplateInstruction<1, 0, 0> {
+ public:
+  DECLARE_CONCRETE_INSTRUCTION(LoadGlobal, "load-global")
+  DECLARE_HYDROGEN_ACCESSOR(LoadGlobal)
+};
+
+
+class LStoreGlobal: public LUnaryOperation<0> {
+ public:
+  explicit LStoreGlobal(LOperand* value) : LUnaryOperation<0>(value) {}
+
+  DECLARE_CONCRETE_INSTRUCTION(StoreGlobal, "store-global")
+  DECLARE_HYDROGEN_ACCESSOR(StoreGlobal)
+};
+
+
+class LPushArgument: public LUnaryOperation<0> {
+ public:
+  explicit LPushArgument(LOperand* argument) : LUnaryOperation<0>(argument) {}
+
+  DECLARE_CONCRETE_INSTRUCTION(PushArgument, "push-argument")
+};
+
+
+class LGlobalObject: public LTemplateInstruction<1, 0, 0> {
+ public:
+  DECLARE_CONCRETE_INSTRUCTION(GlobalObject, "global-object")
+};
+
+
+class LGlobalReceiver: public LTemplateInstruction<1, 0, 0> {
+ public:
+  DECLARE_CONCRETE_INSTRUCTION(GlobalReceiver, "global-receiver")
+};
+
+
+class LCallConstantFunction: public LTemplateInstruction<1, 0, 0> {
+ public:
+  DECLARE_CONCRETE_INSTRUCTION(CallConstantFunction, "call-constant-function")
+  DECLARE_HYDROGEN_ACCESSOR(CallConstantFunction)
+
+  virtual void PrintDataTo(StringStream* stream);
+
+  Handle<JSFunction> function() { return hydrogen()->function(); }
+  int arity() const { return hydrogen()->argument_count() - 1; }
+};
+
+
+class LCallKeyed: public LTemplateInstruction<1, 0, 0> {
+ public:
+  DECLARE_CONCRETE_INSTRUCTION(CallKeyed, "call-keyed")
+  DECLARE_HYDROGEN_ACCESSOR(CallKeyed)
+
+  virtual void PrintDataTo(StringStream* stream);
+
+  int arity() const { return hydrogen()->argument_count() - 1; }
+};
+
+
+class LCallNamed: public LTemplateInstruction<1, 0, 0> {
+ public:
+  DECLARE_CONCRETE_INSTRUCTION(CallNamed, "call-named")
+  DECLARE_HYDROGEN_ACCESSOR(CallNamed)
+
+  virtual void PrintDataTo(StringStream* stream);
+
+  Handle<String> name() const { return hydrogen()->name(); }
+  int arity() const { return hydrogen()->argument_count() - 1; }
+};
+
+
+class LCallFunction: public LTemplateInstruction<1, 0, 0> {
+ public:
+  DECLARE_CONCRETE_INSTRUCTION(CallFunction, "call-function")
+  DECLARE_HYDROGEN_ACCESSOR(CallFunction)
+
+  int arity() const { return hydrogen()->argument_count() - 2; }
+};
+
+
+class LCallGlobal: public LTemplateInstruction<1, 0, 0> {
+ public:
+  DECLARE_CONCRETE_INSTRUCTION(CallGlobal, "call-global")
+  DECLARE_HYDROGEN_ACCESSOR(CallGlobal)
+
+  virtual void PrintDataTo(StringStream* stream);
+
+  Handle<String> name() const {return hydrogen()->name(); }
+  int arity() const { return hydrogen()->argument_count() - 1; }
+};
+
+
+class LCallKnownGlobal: public LTemplateInstruction<1, 0, 0> {
+ public:
+  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 LUnaryOperation<1> {
+ public:
+  explicit LCallNew(LOperand* constructor) : LUnaryOperation<1>(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 LUnaryOperation<1> {
+ public:
+  explicit LInteger32ToDouble(LOperand* use) : LUnaryOperation<1>(use) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(Integer32ToDouble, "int32-to-double")
+};
+
+
+class LNumberTagI: public LUnaryOperation<1> {
+ public:
+  explicit LNumberTagI(LOperand* use) : LUnaryOperation<1>(use) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(NumberTagI, "number-tag-i")
+};
+
+
+class LNumberTagD: public LUnaryOperation<1> {
+ public:
+  explicit LNumberTagD(LOperand* value, LOperand* temp)
+      : LUnaryOperation<1>(value), temp_(temp) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(NumberTagD, "number-tag-d")
+
+  LOperand* temp() const { return temp_; }
+
+ private:
+  LOperand* temp_;
+};
+
+
+// Sometimes truncating conversion from a tagged value to an int32.
+class LDoubleToI: public LUnaryOperation<1> {
+ public:
+  LDoubleToI(LOperand* value, LOperand* temporary)
+      : LUnaryOperation<1>(value), temporary_(temporary) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(DoubleToI, "double-to-i")
+  DECLARE_HYDROGEN_ACCESSOR(Change)
+
+  bool truncating() { return hydrogen()->CanTruncateToInt32(); }
+  LOperand* temporary() const { return temporary_; }
+
+ private:
+  LOperand* temporary_;
+};
+
+
+// Truncating conversion from a tagged value to an int32.
+class LTaggedToI: public LUnaryOperation<1> {
+ public:
+  LTaggedToI(LOperand* value, LOperand* temp)
+      : LUnaryOperation<1>(value), temp_(temp) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(TaggedToI, "tagged-to-i")
+  DECLARE_HYDROGEN_ACCESSOR(Change)
+
+  bool truncating() { return hydrogen()->CanTruncateToInt32(); }
+  LOperand* temp() const { return temp_; }
+
+ private:
+  LOperand* temp_;
+};
+
+
+class LSmiTag: public LUnaryOperation<1> {
+ public:
+  explicit LSmiTag(LOperand* use) : LUnaryOperation<1>(use) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(SmiTag, "smi-tag")
+};
+
+
+class LNumberUntagD: public LUnaryOperation<1> {
+ public:
+  explicit LNumberUntagD(LOperand* value) : LUnaryOperation<1>(value) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(NumberUntagD, "double-untag")
+};
+
+
+class LSmiUntag: public LUnaryOperation<1> {
+ public:
+  LSmiUntag(LOperand* use, bool needs_check)
+      : LUnaryOperation<1>(use), needs_check_(needs_check) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(SmiUntag, "smi-untag")
+
+  bool needs_check() const { return needs_check_; }
+
+ private:
+  bool needs_check_;
+};
+
+
+class LStoreNamed: public LTemplateInstruction<0, 2, 0> {
+ public:
+  LStoreNamed(LOperand* obj, LOperand* val) {
+    this->SetInputAt(0, obj);
+    this->SetInputAt(1, val);
+  }
+
+  DECLARE_INSTRUCTION(StoreNamed)
+  DECLARE_HYDROGEN_ACCESSOR(StoreNamed)
+
+  virtual void PrintDataTo(StringStream* stream);
+
+  LOperand* object() const { return this->InputAt(0); }
+  LOperand* value() const { return this->InputAt(1); }
+  Handle<Object> name() const { return hydrogen()->name(); }
+};
+
+
+class LStoreNamedField: public LStoreNamed {
+ public:
+  LStoreNamedField(LOperand* obj, LOperand* val, LOperand* temp)
+      : LStoreNamed(obj, val), temp_(temp) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(StoreNamedField, "store-named-field")
+  DECLARE_HYDROGEN_ACCESSOR(StoreNamedField)
+
+  bool is_in_object() { return hydrogen()->is_in_object(); }
+  int offset() { return hydrogen()->offset(); }
+  bool needs_write_barrier() { return hydrogen()->NeedsWriteBarrier(); }
+  Handle<Map> transition() const { return hydrogen()->transition(); }
+
+  LOperand* temp() { return temp_; }
+
+ private:
+  LOperand* temp_;
+};
+
+
+class LStoreNamedGeneric: public LStoreNamed {
+ public:
+  LStoreNamedGeneric(LOperand* obj, LOperand* val)
+      : LStoreNamed(obj, val) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(StoreNamedGeneric, "store-named-generic")
+  DECLARE_HYDROGEN_ACCESSOR(StoreNamedGeneric)
+};
+
+
+class LStoreKeyed: public LTemplateInstruction<0, 3, 0> {
+ public:
+  LStoreKeyed(LOperand* obj, LOperand* key, LOperand* val) {
+    this->SetInputAt(0, obj);
+    this->SetInputAt(1, key);
+    this->SetInputAt(2, val);
+  }
+
+  DECLARE_INSTRUCTION(StoreKeyed)
+
+  virtual void PrintDataTo(StringStream* stream);
+
+  LOperand* object() const { return this->InputAt(0); }
+  LOperand* key() const { return this->InputAt(1); }
+  LOperand* value() const { return this->InputAt(2); }
+};
+
+
+class LStoreKeyedFastElement: public LStoreKeyed {
+ public:
+  LStoreKeyedFastElement(LOperand* obj, LOperand* key, LOperand* val)
+      : LStoreKeyed(obj, key, val) {}
+
+  DECLARE_CONCRETE_INSTRUCTION(StoreKeyedFastElement,
+                               "store-keyed-fast-element")
+  DECLARE_HYDROGEN_ACCESSOR(StoreKeyedFastElement)
+};
+
+
+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 LUnaryOperation<0> {
+ public:
+  explicit LCheckFunction(LOperand* use) : LUnaryOperation<0>(use) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(CheckFunction, "check-function")
+  DECLARE_HYDROGEN_ACCESSOR(CheckFunction)
+};
+
+
+class LCheckInstanceType: public LUnaryOperation<0> {
+ public:
+  LCheckInstanceType(LOperand* use, LOperand* temp)
+      : LUnaryOperation<0>(use), temp_(temp) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(CheckInstanceType, "check-instance-type")
+  DECLARE_HYDROGEN_ACCESSOR(CheckInstanceType)
+
+  LOperand* temp() const { return temp_; }
+
+ private:
+  LOperand* temp_;
+};
+
+
+class LCheckMap: public LUnaryOperation<0> {
+ public:
+  explicit LCheckMap(LOperand* use) : LUnaryOperation<0>(use) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(CheckMap, "check-map")
+  DECLARE_HYDROGEN_ACCESSOR(CheckMap)
+};
+
+
+class LCheckPrototypeMaps: public LTemplateInstruction<0, 0, 0> {
+ public:
+  explicit LCheckPrototypeMaps(LOperand* temp) : temp_(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(); }
+
+  LOperand* temp() const { return temp_; }
+
+ private:
+  LOperand* temp_;
+};
+
+
+class LCheckSmi: public LUnaryOperation<0> {
+ public:
+  LCheckSmi(LOperand* use, Condition condition)
+      : LUnaryOperation<0>(use), condition_(condition) { }
+
+  Condition condition() const { return condition_; }
+
+  virtual void CompileToNative(LCodeGen* generator);
+  virtual const char* Mnemonic() const {
+    return (condition_ == zero) ? "check-non-smi" : "check-smi";
+  }
+
+ private:
+  Condition condition_;
+};
+
+
+class LMaterializedLiteral: public LTemplateInstruction<1, 0, 0> {
+ public:
+  DECLARE_INSTRUCTION(MaterializedLiteral)
+};
+
+
+class LArrayLiteral: public LMaterializedLiteral {
+ public:
+  DECLARE_CONCRETE_INSTRUCTION(ArrayLiteral, "array-literal")
+  DECLARE_HYDROGEN_ACCESSOR(ArrayLiteral)
+};
+
+
+class LObjectLiteral: public LMaterializedLiteral {
+ public:
+  DECLARE_CONCRETE_INSTRUCTION(ObjectLiteral, "object-literal")
+  DECLARE_HYDROGEN_ACCESSOR(ObjectLiteral)
+};
+
+
+class LRegExpLiteral: public LMaterializedLiteral {
+ public:
+  DECLARE_CONCRETE_INSTRUCTION(RegExpLiteral, "regexp-literal")
+  DECLARE_HYDROGEN_ACCESSOR(RegExpLiteral)
+};
+
+
+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 LUnaryOperation<1> {
+ public:
+  explicit LTypeof(LOperand* input) : LUnaryOperation<1>(input) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(Typeof, "typeof")
+};
+
+
+class LTypeofIs: public LUnaryOperation<1> {
+ public:
+  explicit LTypeofIs(LOperand* input) : LUnaryOperation<1>(input) { }
+  virtual void PrintDataTo(StringStream* stream);
+
+  DECLARE_CONCRETE_INSTRUCTION(TypeofIs, "typeof-is")
+  DECLARE_HYDROGEN_ACCESSOR(TypeofIs)
+
+  Handle<String> type_literal() { return hydrogen()->type_literal(); }
+};
+
+
+class LTypeofIsAndBranch: public LTypeofIs {
+ public:
+  LTypeofIsAndBranch(LOperand* value,
+                     int true_block_id,
+                     int false_block_id)
+      : LTypeofIs(value),
+        true_block_id_(true_block_id),
+        false_block_id_(false_block_id) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(TypeofIsAndBranch, "typeof-is-and-branch")
+
+  virtual void PrintDataTo(StringStream* stream);
+  virtual bool IsControl() const { return true; }
+
+  int true_block_id() const { return true_block_id_; }
+  int false_block_id() const { return false_block_id_; }
+
+ private:
+  int true_block_id_;
+  int false_block_id_;
+};
+
+
+class LDeleteProperty: public LBinaryOperation<1> {
+ public:
+  LDeleteProperty(LOperand* obj, LOperand* key)
+      : LBinaryOperation<1>(obj, key) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(DeleteProperty, "delete-property")
+
+  LOperand* object() const { return left(); }
+  LOperand* key() const { return right(); }
+};
+
+
+class LOsrEntry: public LTemplateInstruction<0, 0, 0> {
+ public:
+  LOsrEntry();
+
+  DECLARE_CONCRETE_INSTRUCTION(OsrEntry, "osr-entry")
+
+  LOperand** SpilledRegisterArray() { return register_spills_; }
+  LOperand** SpilledDoubleRegisterArray() { return double_register_spills_; }
+
+  void MarkSpilledRegister(int allocation_index, LOperand* spill_operand);
+  void MarkSpilledDoubleRegister(int allocation_index,
+                                 LOperand* spill_operand);
+
+ private:
+  // Arrays of spill slot operands for registers with an assigned spill
+  // slot, i.e., that must also be restored to the spill slot on OSR entry.
+  // NULL if the register has no assigned spill slot.  Indexed by allocation
+  // index.
+  LOperand* register_spills_[Register::kNumAllocatableRegisters];
+  LOperand* double_register_spills_[DoubleRegister::kNumAllocatableRegisters];
+};
+
+
+class LStackCheck: public LTemplateInstruction<0, 0, 0> {
+ public:
+  DECLARE_CONCRETE_INSTRUCTION(StackCheck, "stack-check")
+};
+
+
+class LChunkBuilder;
+class LChunk: public ZoneObject {
+ public:
+  explicit LChunk(HGraph* graph)
+    : spill_slot_count_(0),
+      graph_(graph),
+      instructions_(32),
+      pointer_maps_(8),
+      inlined_closures_(1) { }
+
+  int AddInstruction(LInstruction* instruction, HBasicBlock* block);
+  LConstantOperand* DefineConstantOperand(HConstant* constant);
+  Handle<Object> LookupLiteral(LConstantOperand* operand) const;
+  Representation LookupLiteralRepresentation(LConstantOperand* operand) const;
+
+  int GetNextSpillIndex(bool is_double);
+  LOperand* GetNextSpillSlot(bool is_double);
+
+  int ParameterAt(int index);
+  int GetParameterStackSlot(int index) const;
+  int spill_slot_count() const { return spill_slot_count_; }
+  HGraph* graph() const { return graph_; }
+  const ZoneList<LInstruction*>* instructions() const { return &instructions_; }
+  void AddGapMove(int index, LOperand* from, LOperand* to);
+  LGap* GetGapAt(int index) const;
+  bool IsGapAt(int index) const;
+  int NearestGapPos(int index) const;
+  void MarkEmptyBlocks();
+  const ZoneList<LPointerMap*>* pointer_maps() const { return &pointer_maps_; }
+  LLabel* GetLabel(int block_id) const {
+    HBasicBlock* block = graph_->blocks()->at(block_id);
+    int first_instruction = block->first_instruction_index();
+    return LLabel::cast(instructions_[first_instruction]);
+  }
+  int LookupDestination(int block_id) const {
+    LLabel* cur = GetLabel(block_id);
+    while (cur->replacement() != NULL) {
+      cur = cur->replacement();
+    }
+    return cur->block_id();
+  }
+  Label* GetAssemblyLabel(int block_id) const {
+    LLabel* label = GetLabel(block_id);
+    ASSERT(!label->HasReplacement());
+    return label->label();
+  }
+
+  const ZoneList<Handle<JSFunction> >* inlined_closures() const {
+    return &inlined_closures_;
+  }
+
+  void AddInlinedClosure(Handle<JSFunction> closure) {
+    inlined_closures_.Add(closure);
+  }
+
+ private:
+  int spill_slot_count_;
+  HGraph* const graph_;
+  ZoneList<LInstruction*> instructions_;
+  ZoneList<LPointerMap*> pointer_maps_;
+  ZoneList<Handle<JSFunction> > inlined_closures_;
+};
+
+
+class LChunkBuilder BASE_EMBEDDED {
+ public:
+  LChunkBuilder(HGraph* graph, LAllocator* allocator)
+      : chunk_(NULL),
+        graph_(graph),
+        status_(UNUSED),
+        current_instruction_(NULL),
+        current_block_(NULL),
+        next_block_(NULL),
+        argument_count_(0),
+        allocator_(allocator),
+        position_(RelocInfo::kNoPosition),
+        instructions_pending_deoptimization_environment_(NULL),
+        pending_deoptimization_ast_id_(AstNode::kNoNumber) { }
+
+  // Build the sequence for the graph.
+  LChunk* Build();
+
+  // Declare methods that deal with the individual node types.
+#define DECLARE_DO(type) LInstruction* Do##type(H##type* node);
+  HYDROGEN_CONCRETE_INSTRUCTION_LIST(DECLARE_DO)
+#undef DECLARE_DO
+
+ private:
+  enum Status {
+    UNUSED,
+    BUILDING,
+    DONE,
+    ABORTED
+  };
+
+  LChunk* chunk() const { return chunk_; }
+  HGraph* graph() const { return graph_; }
+
+  bool is_unused() const { return status_ == UNUSED; }
+  bool is_building() const { return status_ == BUILDING; }
+  bool is_done() const { return status_ == DONE; }
+  bool is_aborted() const { return status_ == ABORTED; }
+
+  void Abort(const char* format, ...);
+
+  // Methods for getting operands for Use / Define / Temp.
+  LRegister* ToOperand(Register reg);
+  LUnallocated* ToUnallocated(Register reg);
+  LUnallocated* ToUnallocated(XMMRegister reg);
+
+  // Methods for setting up define-use relationships.
+  LOperand* Use(HValue* value, LUnallocated* operand);
+  LOperand* UseFixed(HValue* value, Register fixed_register);
+  LOperand* UseFixedDouble(HValue* value, XMMRegister fixed_register);
+
+  // A value that is guaranteed to be allocated to a register.
+  // Operand created by UseRegister is guaranteed to be live until the end of
+  // instruction. This means that register allocator will not reuse it's
+  // register for any other operand inside instruction.
+  // Operand created by UseRegisterAtStart is guaranteed to be live only at
+  // instruction start. Register allocator is free to assign the same register
+  // to some other operand used inside instruction (i.e. temporary or
+  // output).
+  LOperand* UseRegister(HValue* value);
+  LOperand* UseRegisterAtStart(HValue* value);
+
+  // A value in a register that may be trashed.
+  LOperand* UseTempRegister(HValue* value);
+  LOperand* Use(HValue* value);
+  LOperand* UseAtStart(HValue* value);
+  LOperand* UseOrConstant(HValue* value);
+  LOperand* UseOrConstantAtStart(HValue* value);
+  LOperand* UseRegisterOrConstant(HValue* value);
+  LOperand* UseRegisterOrConstantAtStart(HValue* value);
+
+  // Methods for setting up define-use relationships.
+  // Return the same instruction that they are passed.
+  template<int I, int T>
+      LInstruction* Define(LTemplateInstruction<1, I, T>* instr,
+                           LUnallocated* result);
+  template<int I, int T>
+      LInstruction* Define(LTemplateInstruction<1, I, T>* instr);
+  template<int I, int T>
+      LInstruction* DefineAsRegister(LTemplateInstruction<1, I, T>* instr);
+  template<int I, int T>
+      LInstruction* DefineAsSpilled(LTemplateInstruction<1, I, T>* instr,
+                                    int index);
+  template<int I, int T>
+      LInstruction* DefineSameAsFirst(LTemplateInstruction<1, I, T>* instr);
+  template<int I, int T>
+      LInstruction* DefineFixed(LTemplateInstruction<1, I, T>* instr,
+                                Register reg);
+  template<int I, int T>
+      LInstruction* DefineFixedDouble(LTemplateInstruction<1, I, T>* instr,
+                                      XMMRegister reg);
+  LInstruction* AssignEnvironment(LInstruction* instr);
+  LInstruction* AssignPointerMap(LInstruction* instr);
+
+  enum CanDeoptimize { CAN_DEOPTIMIZE_EAGERLY, CANNOT_DEOPTIMIZE_EAGERLY };
+
+  // By default we assume that instruction sequences generated for calls
+  // cannot deoptimize eagerly and we do not attach environment to this
+  // instruction.
+  LInstruction* MarkAsCall(
+      LInstruction* instr,
+      HInstruction* hinstr,
+      CanDeoptimize can_deoptimize = CANNOT_DEOPTIMIZE_EAGERLY);
+  LInstruction* MarkAsSaveDoubles(LInstruction* instr);
+
+  LInstruction* SetInstructionPendingDeoptimizationEnvironment(
+      LInstruction* instr, int ast_id);
+  void ClearInstructionPendingDeoptimizationEnvironment();
+
+  LEnvironment* CreateEnvironment(HEnvironment* hydrogen_env);
+
+  // Temporary operand that must be in a register.
+  LUnallocated* TempRegister();
+  LOperand* FixedTemp(Register reg);
+  LOperand* FixedTemp(XMMRegister reg);
+
+  void VisitInstruction(HInstruction* current);
 
   void DoBasicBlock(HBasicBlock* block, HBasicBlock* next_block);
+  LInstruction* DoBit(Token::Value op, HBitwiseBinaryOperation* instr);
+  LInstruction* DoShift(Token::Value op, HBitwiseBinaryOperation* instr);
+  LInstruction* DoArithmeticD(Token::Value op,
+                              HArithmeticBinaryOperation* instr);
+  LInstruction* DoArithmeticT(Token::Value op,
+                              HArithmeticBinaryOperation* instr);
 
   LChunk* chunk_;
   HGraph* const graph_;
@@ -412,6 +2032,9 @@ class LChunkBuilder BASE_EMBEDDED {
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
+#undef DECLARE_HYDROGEN_ACCESSOR
+#undef DECLARE_INSTRUCTION
+#undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal