text: // 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
  //       with the distribution.
  //     * Neither the name of Google Inc. nor the names of its
  //       contributors may be used to endorse or promote products derived
  //       from this software without specific prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  #ifndef V8_X64_LITHIUM_X64_H_
  #define V8_X64_LITHIUM_X64_H_
  
  #include "hydrogen.h"
  #include "lithium-allocator.h"
  #include "lithium.h"
  #include "safepoint-table.h"
  #include "utils.h"
  
  namespace v8 {
  namespace internal {
  
  // Forward declarations.
  class LCodeGen;
  
  #define LITHIUM_ALL_INSTRUCTION_LIST(V)         \
    V(ControlInstruction)                         \
    V(Call)                                       \
    LITHIUM_CONCRETE_INSTRUCTION_LIST(V)
  
  
  #define LITHIUM_CONCRETE_INSTRUCTION_LIST(V)    \
    V(AccessArgumentsAt)                          \
    V(AddI)                                       \
    V(Allocate)                                   \
    V(AllocateObject)                             \
    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(CheckMaps)                                  \
    V(CheckNonSmi)                                \
    V(CheckPrototypeMaps)                         \
    V(CheckSmi)                                   \
    V(ClampDToUint8)                              \
    V(ClampIToUint8)                              \
    V(ClampTToUint8)                              \
    V(ClassOfTestAndBranch)                       \
    V(CmpConstantEqAndBranch)                     \
    V(CmpIDAndBranch)                             \
    V(CmpObjectEqAndBranch)                       \
    V(CmpMapAndBranch)                            \
    V(CmpT)                                       \
    V(ConstantD)                                  \
    V(ConstantI)                                  \
    V(ConstantT)                                  \
    V(Context)                                    \
    V(DeclareGlobals)                             \
    V(DeleteProperty)                             \
    V(Deoptimize)                                 \
    V(DivI)                                       \
    V(DoubleToI)                                  \
    V(DummyUse)                                   \
    V(ElementsKind)                               \
    V(FastLiteral)                                \
    V(FixedArrayBaseLength)                       \
    V(MapEnumLength)                              \
    V(FunctionLiteral)                            \
    V(GetCachedArrayIndex)                        \
    V(GlobalObject)                               \
    V(GlobalReceiver)                             \
    V(Goto)                                       \
    V(HasCachedArrayIndexAndBranch)               \
    V(HasInstanceTypeAndBranch)                   \
    V(In)                                         \
    V(InstanceOf)                                 \
    V(InstanceOfKnownGlobal)                      \
    V(InstructionGap)                             \
    V(Integer32ToDouble)                          \
    V(Uint32ToDouble)                             \
    V(InvokeFunction)                             \
    V(IsConstructCallAndBranch)                   \
    V(IsNilAndBranch)                             \
    V(IsObjectAndBranch)                          \
    V(IsStringAndBranch)                          \
    V(IsSmiAndBranch)                             \
    V(IsUndetectableAndBranch)                    \
    V(JSArrayLength)                              \
    V(Label)                                      \
    V(LazyBailout)                                \
    V(LoadContextSlot)                            \
    V(LoadElements)                               \
    V(LoadExternalArrayPointer)                   \
    V(LoadFunctionPrototype)                      \
    V(LoadGlobalCell)                             \
    V(LoadGlobalGeneric)                          \
    V(LoadKeyed)                                  \
    V(LoadKeyedGeneric)                           \
    V(LoadNamedField)                             \
    V(LoadNamedFieldPolymorphic)                  \
    V(LoadNamedGeneric)                           \
    V(MathExp)                                    \
    V(MathFloorOfDiv)                             \
    V(MathMinMax)                                 \
    V(ModI)                                       \
    V(MulI)                                       \
    V(NumberTagD)                                 \
    V(NumberTagI)                                 \
    V(NumberTagU)                                 \
    V(NumberUntagD)                               \
    V(ObjectLiteral)                              \
    V(OsrEntry)                                   \
    V(OuterContext)                               \
    V(Parameter)                                  \
    V(Power)                                      \
    V(PushArgument)                               \
    V(Random)                                     \
    V(RegExpLiteral)                              \
    V(Return)                                     \
    V(SeqStringSetChar)                           \
    V(ShiftI)                                     \
    V(SmiTag)                                     \
    V(SmiUntag)                                   \
    V(StackCheck)                                 \
    V(StoreContextSlot)                           \
    V(StoreGlobalCell)                            \
    V(StoreGlobalGeneric)                         \
    V(StoreKeyed)                                 \
    V(StoreKeyedGeneric)                          \
    V(StoreNamedField)                            \
    V(StoreNamedGeneric)                          \
    V(StringAdd)                                  \
    V(StringCharCodeAt)                           \
    V(StringCharFromCode)                         \
    V(StringCompareAndBranch)                     \
    V(StringLength)                               \
    V(SubI)                                       \
    V(TaggedToI)                                  \
    V(ThisFunction)                               \
    V(Throw)                                      \
    V(ToFastProperties)                           \
    V(TransitionElementsKind)                     \
    V(TrapAllocationMemento)                      \
    V(Typeof)                                     \
    V(TypeofIsAndBranch)                          \
    V(UnaryMathOperation)                         \
    V(UnknownOSRValue)                            \
    V(ValueOf)                                    \
    V(ForInPrepareMap)                            \
    V(ForInCacheArray)                            \
    V(CheckMapValue)                              \
    V(LoadFieldByIndex)                           \
    V(DateField)                                  \
    V(WrapReceiver)                               \
    V(Drop)
  
  
  #define DECLARE_CONCRETE_INSTRUCTION(type, mnemonic)              \
    virtual Opcode opcode() const { return LInstruction::k##type; } \
    virtual void CompileToNative(LCodeGen* generator);              \
    virtual const char* Mnemonic() const { return mnemonic; }       \
    static L##type* cast(LInstruction* instr) {                     \
      ASSERT(instr->Is##type());                                    \
      return reinterpret_cast<L##type*>(instr);                     \
    }
  
  
  #define DECLARE_HYDROGEN_ACCESSOR(type)     \
    H##type* hydrogen() const {               \
      return H##type::cast(hydrogen_value()); \
    }
  
  
  class LInstruction: public ZoneObject {
   public:
    LInstruction()
        :  environment_(NULL),
           hydrogen_value_(NULL),
           is_call_(false) { }
  
    virtual ~LInstruction() { }
  
    virtual void CompileToNative(LCodeGen* generator) = 0;
    virtual const char* Mnemonic() const = 0;
    virtual void PrintTo(StringStream* stream);
    virtual void PrintDataTo(StringStream* stream);
    virtual void PrintOutputOperandTo(StringStream* stream);
  
    enum Opcode {
      // Declare a unique enum value for each instruction.
  #define DECLARE_OPCODE(type) k##type,
      LITHIUM_CONCRETE_INSTRUCTION_LIST(DECLARE_OPCODE)
      kNumberOfInstructions
  #undef DECLARE_OPCODE
    };
  
    virtual Opcode opcode() const = 0;
  
    // Declare non-virtual type testers for all leaf IR classes.
  #define DECLARE_PREDICATE(type) \
    bool Is##type() const { return opcode() == k##type; }
    LITHIUM_CONCRETE_INSTRUCTION_LIST(DECLARE_PREDICATE)
  #undef DECLARE_PREDICATE
  
    // Declare virtual predicates for instructions that don't have
    // an opcode.
    virtual bool IsGap() const { return false; }
  
    virtual bool IsControl() const { return false; }
  
    void set_environment(LEnvironment* env) { environment_ = env; }
    LEnvironment* environment() const { return environment_; }
    bool HasEnvironment() const { return environment_ != NULL; }
  
    void set_pointer_map(LPointerMap* p) { pointer_map_.set(p); }
    LPointerMap* pointer_map() const { return pointer_map_.get(); }
    bool HasPointerMap() const { return pointer_map_.is_set(); }
  
    void set_hydrogen_value(HValue* value) { hydrogen_value_ = value; }
    HValue* hydrogen_value() const { return hydrogen_value_; }
  
    void MarkAsCall() { is_call_ = true; }
  
    // Interface to the register allocator and iterators.
    bool ClobbersTemps() const { return is_call_; }
    bool ClobbersRegisters() const { return is_call_; }
    bool ClobbersDoubleRegisters() const { return is_call_; }
  
    virtual void SetDeferredLazyDeoptimizationEnvironment(LEnvironment* env) { }
  
    // Interface to the register allocator and iterators.
    bool IsMarkedAsCall() const { return is_call_; }
  
    virtual bool HasResult() const = 0;
    virtual LOperand* result() = 0;
  
    LOperand* FirstInput() { return InputAt(0); }
    LOperand* Output() { return HasResult() ? result() : NULL; }
  
  #ifdef DEBUG
    void VerifyCall();
  #endif
  
   private:
    // Iterator support.
    friend class InputIterator;
    virtual int InputCount() = 0;
    virtual LOperand* InputAt(int i) = 0;
  
    friend class TempIterator;
    virtual int TempCount() = 0;
    virtual LOperand* TempAt(int i) = 0;
  
    LEnvironment* environment_;
    SetOncePointer<LPointerMap> pointer_map_;
    HValue* hydrogen_value_;
    bool is_call_;
  };
  
  
  // 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]; }
  
   protected:
    EmbeddedContainer<LOperand*, R> results_;
    EmbeddedContainer<LOperand*, I> inputs_;
    EmbeddedContainer<LOperand*, T> temps_;
  
   private:
    // Iterator support.
    virtual int InputCount() { return I; }
    virtual LOperand* InputAt(int i) { return inputs_[i]; }
  
    virtual int TempCount() { return T; }
    virtual LOperand* TempAt(int i) { return temps_[i]; }
  };
  
  
  class LGap: public LTemplateInstruction<0, 0, 0> {
   public:
    explicit LGap(HBasicBlock* block)
        : block_(block) {
      parallel_moves_[BEFORE] = NULL;
      parallel_moves_[START] = NULL;
      parallel_moves_[END] = NULL;
      parallel_moves_[AFTER] = NULL;
    }
  
    // Can't use the DECLARE-macro here because of sub-classes.
    virtual bool IsGap() const { return true; }
    virtual void PrintDataTo(StringStream* stream);
    static LGap* cast(LInstruction* instr) {
      ASSERT(instr->IsGap());
      return reinterpret_cast<LGap*>(instr);
    }
  
    bool IsRedundant() const;
  
    HBasicBlock* block() const { return block_; }
  
    enum InnerPosition {
      BEFORE,
      START,
      END,
      AFTER,
      FIRST_INNER_POSITION = BEFORE,
      LAST_INNER_POSITION = AFTER
    };
  
    LParallelMove* GetOrCreateParallelMove(InnerPosition pos,
                                           Zone* zone)  {
      if (parallel_moves_[pos] == NULL) {
        parallel_moves_[pos] = new(zone) LParallelMove(zone);
      }
      return parallel_moves_[pos];
    }
  
    LParallelMove* GetParallelMove(InnerPosition pos)  {
      return parallel_moves_[pos];
    }
  
   private:
    LParallelMove* parallel_moves_[LAST_INNER_POSITION + 1];
    HBasicBlock* block_;
  };
  
  
  class LInstructionGap: public LGap {
   public:
    explicit LInstructionGap(HBasicBlock* block) : LGap(block) { }
  
    DECLARE_CONCRETE_INSTRUCTION(InstructionGap, "gap")
  };
  
  
  class LGoto: public LTemplateInstruction<0, 0, 0> {
   public:
    explicit LGoto(int block_id) : block_id_(block_id) { }
  
    DECLARE_CONCRETE_INSTRUCTION(Goto, "goto")
    virtual void PrintDataTo(StringStream* stream);
    virtual bool IsControl() const { return true; }
  
    int block_id() const { return block_id_; }
  
   private:
    int block_id_;
  };
  
  
  class LLazyBailout: public LTemplateInstruction<0, 0, 0> {
   public:
    LLazyBailout() : gap_instructions_size_(0) { }
  
    DECLARE_CONCRETE_INSTRUCTION(LazyBailout, "lazy-bailout")
  
    void set_gap_instructions_size(int gap_instructions_size) {
      gap_instructions_size_ = gap_instructions_size;
    }
    int gap_instructions_size() { return gap_instructions_size_; }
  
   private:
    int gap_instructions_size_;
  };
  
  
  class LDummyUse: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LDummyUse(LOperand* value) {
      inputs_[0] = value;
    }
    DECLARE_CONCRETE_INSTRUCTION(DummyUse, "dummy-use")
  };
  
  
  class LDeoptimize: public LTemplateInstruction<0, 0, 0> {
   public:
    DECLARE_CONCRETE_INSTRUCTION(Deoptimize, "deoptimize")
  };
  
  
  class LLabel: public LGap {
   public:
    explicit LLabel(HBasicBlock* block)
        : LGap(block), replacement_(NULL) { }
  
    DECLARE_CONCRETE_INSTRUCTION(Label, "label")
  
    virtual void PrintDataTo(StringStream* stream);
  
    int block_id() const { return block()->block_id(); }
    bool is_loop_header() const { return block()->IsLoopHeader(); }
    Label* label() { return &label_; }
    LLabel* replacement() const { return replacement_; }
    void set_replacement(LLabel* label) { replacement_ = label; }
    bool HasReplacement() const { return replacement_ != NULL; }
  
   private:
    Label label_;
    LLabel* replacement_;
  };
  
  
  class LParameter: public LTemplateInstruction<1, 0, 0> {
   public:
    DECLARE_CONCRETE_INSTRUCTION(Parameter, "parameter")
  };
  
  
  class LCallStub: public LTemplateInstruction<1, 0, 0> {
   public:
    DECLARE_CONCRETE_INSTRUCTION(CallStub, "call-stub")
    DECLARE_HYDROGEN_ACCESSOR(CallStub)
  
    TranscendentalCache::Type transcendental_type() {
      return hydrogen()->transcendental_type();
    }
  };
  
  
  class LUnknownOSRValue: public LTemplateInstruction<1, 0, 0> {
   public:
    DECLARE_CONCRETE_INSTRUCTION(UnknownOSRValue, "unknown-osr-value")
  };
  
  
  template<int I, int T>
  class LControlInstruction: public LTemplateInstruction<0, I, T> {
   public:
    virtual bool IsControl() const { return true; }
  
    int SuccessorCount() { return hydrogen()->SuccessorCount(); }
    HBasicBlock* SuccessorAt(int i) { return hydrogen()->SuccessorAt(i); }
    int true_block_id() { return hydrogen()->SuccessorAt(0)->block_id(); }
    int false_block_id() { return hydrogen()->SuccessorAt(1)->block_id(); }
  
   private:
    HControlInstruction* hydrogen() {
      return HControlInstruction::cast(this->hydrogen_value());
    }
  };
  
  
  class LWrapReceiver: public LTemplateInstruction<1, 2, 0> {
   public:
    LWrapReceiver(LOperand* receiver, LOperand* function) {
      inputs_[0] = receiver;
      inputs_[1] = function;
    }
  
    LOperand* receiver() { return inputs_[0]; }
    LOperand* function() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(WrapReceiver, "wrap-receiver")
  };
  
  
  class LApplyArguments: public LTemplateInstruction<1, 4, 0> {
   public:
    LApplyArguments(LOperand* function,
                    LOperand* receiver,
                    LOperand* length,
                    LOperand* elements) {
      inputs_[0] = function;
      inputs_[1] = receiver;
      inputs_[2] = length;
      inputs_[3] = elements;
    }
  
    LOperand* function() { return inputs_[0]; }
    LOperand* receiver() { return inputs_[1]; }
    LOperand* length() { return inputs_[2]; }
    LOperand* elements() { return inputs_[3]; }
  
    DECLARE_CONCRETE_INSTRUCTION(ApplyArguments, "apply-arguments")
  };
  
  
  class LAccessArgumentsAt: public LTemplateInstruction<1, 3, 0> {
   public:
    LAccessArgumentsAt(LOperand* arguments, LOperand* length, LOperand* index) {
      inputs_[0] = arguments;
      inputs_[1] = length;
      inputs_[2] = index;
    }
  
    LOperand* arguments() { return inputs_[0]; }
    LOperand* length() { return inputs_[1]; }
    LOperand* index() { return inputs_[2]; }
  
    DECLARE_CONCRETE_INSTRUCTION(AccessArgumentsAt, "access-arguments-at")
  
    virtual void PrintDataTo(StringStream* stream);
  };
  
  
  class LArgumentsLength: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LArgumentsLength(LOperand* elements) {
      inputs_[0] = elements;
    }
  
    LOperand* elements() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(ArgumentsLength, "arguments-length")
  };
  
  
  class LArgumentsElements: public LTemplateInstruction<1, 0, 0> {
   public:
    DECLARE_CONCRETE_INSTRUCTION(ArgumentsElements, "arguments-elements")
    DECLARE_HYDROGEN_ACCESSOR(ArgumentsElements)
  };
  
  
  class LModI: public LTemplateInstruction<1, 2, 1> {
   public:
    LModI(LOperand* left, LOperand* right, LOperand* temp) {
      inputs_[0] = left;
      inputs_[1] = right;
      temps_[0] = temp;
    }
  
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(ModI, "mod-i")
    DECLARE_HYDROGEN_ACCESSOR(Mod)
  };
  
  
  class LDivI: public LTemplateInstruction<1, 2, 1> {
   public:
    LDivI(LOperand* left, LOperand* right, LOperand* temp) {
      inputs_[0] = left;
      inputs_[1] = right;
      temps_[0] = temp;
    }
  
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
    LOperand* temp() { return temps_[0]; }
  
    bool is_flooring() { return hydrogen_value()->IsMathFloorOfDiv(); }
  
    DECLARE_CONCRETE_INSTRUCTION(DivI, "div-i")
    DECLARE_HYDROGEN_ACCESSOR(Div)
  };
  
  
  class LMathFloorOfDiv: public LTemplateInstruction<1, 2, 1> {
   public:
    LMathFloorOfDiv(LOperand* left,
                    LOperand* right,
                    LOperand* temp = NULL) {
      inputs_[0] = left;
      inputs_[1] = right;
      temps_[0] = temp;
    }
  
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(MathFloorOfDiv, "math-floor-of-div")
    DECLARE_HYDROGEN_ACCESSOR(MathFloorOfDiv)
  };
  
  
  class LMulI: public LTemplateInstruction<1, 2, 0> {
   public:
    LMulI(LOperand* left, LOperand* right) {
      inputs_[0] = left;
      inputs_[1] = right;
    }
  
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(MulI, "mul-i")
    DECLARE_HYDROGEN_ACCESSOR(Mul)
  };
  
  
  class LCmpIDAndBranch: public LControlInstruction<2, 0> {
   public:
    LCmpIDAndBranch(LOperand* left, LOperand* right) {
      inputs_[0] = left;
      inputs_[1] = right;
    }
  
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(CmpIDAndBranch, "cmp-id-and-branch")
    DECLARE_HYDROGEN_ACCESSOR(CompareIDAndBranch)
  
    Token::Value op() const { return hydrogen()->token(); }
    bool is_double() const {
      return hydrogen()->representation().IsDouble();
    }
  
    virtual void PrintDataTo(StringStream* stream);
  };
  
  
  class LUnaryMathOperation: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LUnaryMathOperation(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(UnaryMathOperation, "unary-math-operation")
    DECLARE_HYDROGEN_ACCESSOR(UnaryMathOperation)
  
    virtual void PrintDataTo(StringStream* stream);
    BuiltinFunctionId op() const { return hydrogen()->op(); }
  };
  
  
  class LMathExp: public LTemplateInstruction<1, 1, 2> {
   public:
    LMathExp(LOperand* value, LOperand* temp1, LOperand* temp2) {
      inputs_[0] = value;
      temps_[0] = temp1;
      temps_[1] = temp2;
      ExternalReference::InitializeMathExpData();
    }
  
    LOperand* value() { return inputs_[0]; }
    LOperand* temp1() { return temps_[0]; }
    LOperand* temp2() { return temps_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(MathExp, "math-exp")
  
    virtual void PrintDataTo(StringStream* stream);
  };
  
  
  class LCmpObjectEqAndBranch: public LControlInstruction<2, 0> {
   public:
    LCmpObjectEqAndBranch(LOperand* left, LOperand* right) {
      inputs_[0] = left;
      inputs_[1] = right;
    }
  
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(CmpObjectEqAndBranch,
                                 "cmp-object-eq-and-branch")
  };
  
  
  class LCmpConstantEqAndBranch: public LControlInstruction<1, 0> {
   public:
    explicit LCmpConstantEqAndBranch(LOperand* left) {
      inputs_[0] = left;
    }
  
    LOperand* left() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(CmpConstantEqAndBranch,
                                 "cmp-constant-eq-and-branch")
    DECLARE_HYDROGEN_ACCESSOR(CompareConstantEqAndBranch)
  };
  
  
  class LIsNilAndBranch: public LControlInstruction<1, 1> {
   public:
    LIsNilAndBranch(LOperand* value, LOperand* temp) {
      inputs_[0] = value;
      temps_[0] = temp;
    }
  
    LOperand* value() { return inputs_[0]; }
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(IsNilAndBranch, "is-nil-and-branch")
    DECLARE_HYDROGEN_ACCESSOR(IsNilAndBranch)
  
    EqualityKind kind() const { return hydrogen()->kind(); }
    NilValue nil() const { return hydrogen()->nil(); }
  
    virtual void PrintDataTo(StringStream* stream);
  };
  
  
  class LIsObjectAndBranch: public LControlInstruction<1, 0> {
   public:
    explicit LIsObjectAndBranch(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(IsObjectAndBranch, "is-object-and-branch")
    DECLARE_HYDROGEN_ACCESSOR(IsObjectAndBranch)
  
    virtual void PrintDataTo(StringStream* stream);
  };
  
  
  class LIsStringAndBranch: public LControlInstruction<1, 1> {
   public:
    explicit LIsStringAndBranch(LOperand* value, LOperand* temp) {
      inputs_[0] = value;
      temps_[0] = temp;
    }
  
    LOperand* value() { return inputs_[0]; }
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(IsStringAndBranch, "is-string-and-branch")
    DECLARE_HYDROGEN_ACCESSOR(IsStringAndBranch)
  
    virtual void PrintDataTo(StringStream* stream);
  };
  
  
  class LIsSmiAndBranch: public LControlInstruction<1, 0> {
   public:
    explicit LIsSmiAndBranch(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(IsSmiAndBranch, "is-smi-and-branch")
    DECLARE_HYDROGEN_ACCESSOR(IsSmiAndBranch)
  
    virtual void PrintDataTo(StringStream* stream);
  };
  
  
  class LIsUndetectableAndBranch: public LControlInstruction<1, 1> {
   public:
    explicit LIsUndetectableAndBranch(LOperand* value, LOperand* temp) {
      inputs_[0] = value;
      temps_[0] = temp;
    }
  
    LOperand* value() { return inputs_[0]; }
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(IsUndetectableAndBranch,
                                 "is-undetectable-and-branch")
    DECLARE_HYDROGEN_ACCESSOR(IsUndetectableAndBranch)
  
    virtual void PrintDataTo(StringStream* stream);
  };
  
  
  class LStringCompareAndBranch: public LControlInstruction<2, 0> {
   public:
    explicit LStringCompareAndBranch(LOperand* left, LOperand* right) {
      inputs_[0] = left;
      inputs_[1] = right;
    }
  
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(StringCompareAndBranch,
                                 "string-compare-and-branch")
    DECLARE_HYDROGEN_ACCESSOR(StringCompareAndBranch)
  
    virtual void PrintDataTo(StringStream* stream);
  
    Token::Value op() const { return hydrogen()->token(); }
  };
  
  
  class LHasInstanceTypeAndBranch: public LControlInstruction<1, 0> {
   public:
    explicit LHasInstanceTypeAndBranch(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(HasInstanceTypeAndBranch,
                                 "has-instance-type-and-branch")
    DECLARE_HYDROGEN_ACCESSOR(HasInstanceTypeAndBranch)
  
    virtual void PrintDataTo(StringStream* stream);
  };
  
  
  class LGetCachedArrayIndex: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LGetCachedArrayIndex(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(GetCachedArrayIndex, "get-cached-array-index")
    DECLARE_HYDROGEN_ACCESSOR(GetCachedArrayIndex)
  };
  
  
  class LHasCachedArrayIndexAndBranch: public LControlInstruction<1, 0> {
   public:
    explicit LHasCachedArrayIndexAndBranch(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(HasCachedArrayIndexAndBranch,
                                 "has-cached-array-index-and-branch")
    DECLARE_HYDROGEN_ACCESSOR(HasCachedArrayIndexAndBranch)
  
    virtual void PrintDataTo(StringStream* stream);
  };
  
  
  class LClassOfTestAndBranch: public LControlInstruction<1, 2> {
   public:
    LClassOfTestAndBranch(LOperand* value, LOperand* temp, LOperand* temp2) {
      inputs_[0] = value;
      temps_[0] = temp;
      temps_[1] = temp2;
    }
  
    LOperand* value() { return inputs_[0]; }
    LOperand* temp() { return temps_[0]; }
    LOperand* temp2() { return temps_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(ClassOfTestAndBranch,
                                 "class-of-test-and-branch")
    DECLARE_HYDROGEN_ACCESSOR(ClassOfTestAndBranch)
  
    virtual void PrintDataTo(StringStream* stream);
  };
  
  
  class LCmpT: public LTemplateInstruction<1, 2, 0> {
   public:
    LCmpT(LOperand* left, LOperand* right) {
      inputs_[0] = left;
      inputs_[1] = right;
    }
  
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(CmpT, "cmp-t")
    DECLARE_HYDROGEN_ACCESSOR(CompareGeneric)
  
    Token::Value op() const { return hydrogen()->token(); }
  };
  
  
  class LIn: public LTemplateInstruction<1, 2, 0> {
   public:
    LIn(LOperand* key, LOperand* object) {
      inputs_[0] = key;
      inputs_[1] = object;
    }
  
    LOperand* key() { return inputs_[0]; }
    LOperand* object() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(In, "in")
  };
  
  
  class LInstanceOf: public LTemplateInstruction<1, 2, 0> {
   public:
    LInstanceOf(LOperand* left, LOperand* right) {
      inputs_[0] = left;
      inputs_[1] = right;
    }
  
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(InstanceOf, "instance-of")
  };
  
  
  class LInstanceOfKnownGlobal: public LTemplateInstruction<1, 1, 1> {
   public:
    LInstanceOfKnownGlobal(LOperand* value, LOperand* temp) {
      inputs_[0] = value;
      temps_[0] = temp;
    }
  
    LOperand* value() { return inputs_[0]; }
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(InstanceOfKnownGlobal,
                                 "instance-of-known-global")
    DECLARE_HYDROGEN_ACCESSOR(InstanceOfKnownGlobal)
  
    Handle<JSFunction> function() const { return hydrogen()->function(); }
    LEnvironment* GetDeferredLazyDeoptimizationEnvironment() {
      return lazy_deopt_env_;
    }
    virtual void SetDeferredLazyDeoptimizationEnvironment(LEnvironment* env) {
      lazy_deopt_env_ = env;
    }
  
   private:
    LEnvironment* lazy_deopt_env_;
  };
  
  
  class LBoundsCheck: public LTemplateInstruction<0, 2, 0> {
   public:
    LBoundsCheck(LOperand* index, LOperand* length) {
      inputs_[0] = index;
      inputs_[1] = length;
    }
  
    LOperand* index() { return inputs_[0]; }
    LOperand* length() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(BoundsCheck, "bounds-check")
    DECLARE_HYDROGEN_ACCESSOR(BoundsCheck)
  };
  
  
  class LBitI: public LTemplateInstruction<1, 2, 0> {
   public:
    LBitI(LOperand* left, LOperand* right) {
      inputs_[0] = left;
      inputs_[1] = right;
    }
  
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
  
    Token::Value op() const { return hydrogen()->op(); }
  
    DECLARE_CONCRETE_INSTRUCTION(BitI, "bit-i")
    DECLARE_HYDROGEN_ACCESSOR(Bitwise)
  };
  
  
  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_; }
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
    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, 0> {
   public:
    LSubI(LOperand* left, LOperand* right) {
      inputs_[0] = left;
      inputs_[1] = right;
    }
  
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(SubI, "sub-i")
    DECLARE_HYDROGEN_ACCESSOR(Sub)
  };
  
  
  class LConstantI: public LTemplateInstruction<1, 0, 0> {
   public:
    DECLARE_CONCRETE_INSTRUCTION(ConstantI, "constant-i")
    DECLARE_HYDROGEN_ACCESSOR(Constant)
  
    int32_t value() const { return hydrogen()->Integer32Value(); }
  };
  
  
  class LConstantD: public LTemplateInstruction<1, 0, 1> {
   public:
    explicit LConstantD(LOperand* temp) {
      temps_[0] = temp;
    }
  
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(ConstantD, "constant-d")
    DECLARE_HYDROGEN_ACCESSOR(Constant)
  
    double value() const { return hydrogen()->DoubleValue(); }
  };
  
  
  class LConstantT: public LTemplateInstruction<1, 0, 0> {
   public:
    DECLARE_CONCRETE_INSTRUCTION(ConstantT, "constant-t")
    DECLARE_HYDROGEN_ACCESSOR(Constant)
  
    Handle<Object> value() const { return hydrogen()->handle(); }
  };
  
  
  class LBranch: public LControlInstruction<1, 0> {
   public:
    explicit LBranch(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(Branch, "branch")
    DECLARE_HYDROGEN_ACCESSOR(Branch)
  
    virtual void PrintDataTo(StringStream* stream);
  };
  
  
  class LCmpMapAndBranch: public LTemplateInstruction<0, 1, 0> {
   public:
    explicit LCmpMapAndBranch(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(CmpMapAndBranch, "cmp-map-and-branch")
    DECLARE_HYDROGEN_ACCESSOR(CompareMap)
  
    virtual bool IsControl() const { return true; }
  
    Handle<Map> map() const { return hydrogen()->map(); }
    int true_block_id() const {
      return hydrogen()->FirstSuccessor()->block_id();
    }
    int false_block_id() const {
      return hydrogen()->SecondSuccessor()->block_id();
    }
  };
  
  
  class LJSArrayLength: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LJSArrayLength(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(JSArrayLength, "js-array-length")
    DECLARE_HYDROGEN_ACCESSOR(JSArrayLength)
  };
  
  
  class LFixedArrayBaseLength: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LFixedArrayBaseLength(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(FixedArrayBaseLength,
                                 "fixed-array-base-length")
    DECLARE_HYDROGEN_ACCESSOR(FixedArrayBaseLength)
  };
  
  
  class LMapEnumLength: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LMapEnumLength(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(MapEnumLength, "map-enum-length")
  };
  
  
  class LElementsKind: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LElementsKind(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(ElementsKind, "elements-kind")
    DECLARE_HYDROGEN_ACCESSOR(ElementsKind)
  };
  
  
  class LValueOf: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LValueOf(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(ValueOf, "value-of")
    DECLARE_HYDROGEN_ACCESSOR(ValueOf)
  };
  
  
  class LDateField: public LTemplateInstruction<1, 1, 0> {
   public:
    LDateField(LOperand* date, Smi* index) : index_(index) {
      inputs_[0] = date;
    }
  
    LOperand* date() { return inputs_[0]; }
    Smi* index() const { return index_; }
  
    DECLARE_CONCRETE_INSTRUCTION(ValueOf, "date-field")
    DECLARE_HYDROGEN_ACCESSOR(ValueOf)
  
   private:
    Smi* index_;
  };
  
  
  class LSeqStringSetChar: public LTemplateInstruction<1, 3, 0> {
   public:
    LSeqStringSetChar(String::Encoding encoding,
                      LOperand* string,
                      LOperand* index,
                      LOperand* value) : encoding_(encoding) {
      inputs_[0] = string;
      inputs_[1] = index;
      inputs_[2] = value;
    }
  
    String::Encoding encoding() { return encoding_; }
    LOperand* string() { return inputs_[0]; }
    LOperand* index() { return inputs_[1]; }
    LOperand* value() { return inputs_[2]; }
  
    DECLARE_CONCRETE_INSTRUCTION(SeqStringSetChar, "seq-string-set-char")
    DECLARE_HYDROGEN_ACCESSOR(SeqStringSetChar)
  
   private:
    String::Encoding encoding_;
  };
  
  
  class LThrow: public LTemplateInstruction<0, 1, 0> {
   public:
    explicit LThrow(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(Throw, "throw")
  };
  
  
  class LBitNotI: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LBitNotI(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(BitNotI, "bit-not-i")
  };
  
  
  class LAddI: public LTemplateInstruction<1, 2, 0> {
   public:
    LAddI(LOperand* left, LOperand* right) {
      inputs_[0] = left;
      inputs_[1] = right;
    }
  
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(AddI, "add-i")
    DECLARE_HYDROGEN_ACCESSOR(Add)
  };
  
  
  class LMathMinMax: public LTemplateInstruction<1, 2, 0> {
   public:
    LMathMinMax(LOperand* left, LOperand* right) {
      inputs_[0] = left;
      inputs_[1] = right;
    }
  
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(MathMinMax, "min-max")
    DECLARE_HYDROGEN_ACCESSOR(MathMinMax)
  };
  
  
  class LPower: public LTemplateInstruction<1, 2, 0> {
   public:
    LPower(LOperand* left, LOperand* right) {
      inputs_[0] = left;
      inputs_[1] = right;
    }
  
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(Power, "power")
    DECLARE_HYDROGEN_ACCESSOR(Power)
  };
  
  
  class LRandom: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LRandom(LOperand* global_object) {
      inputs_[0] = global_object;
    }
  
    LOperand* global_object() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(Random, "random")
    DECLARE_HYDROGEN_ACCESSOR(Random)
  };
  
  
  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_; }
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
  
    virtual Opcode opcode() const { return LInstruction::kArithmeticD; }
    virtual void CompileToNative(LCodeGen* generator);
    virtual const char* Mnemonic() const;
  
   private:
    Token::Value op_;
  };
  
  
  class LArithmeticT: public LTemplateInstruction<1, 2, 0> {
   public:
    LArithmeticT(Token::Value op, LOperand* left, LOperand* right)
        : op_(op) {
      inputs_[0] = left;
      inputs_[1] = right;
    }
  
    Token::Value op() const { return op_; }
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
  
    virtual Opcode opcode() const { return LInstruction::kArithmeticT; }
    virtual void CompileToNative(LCodeGen* generator);
    virtual const char* Mnemonic() const;
  
   private:
    Token::Value op_;
  };
  
  
  class LReturn: public LTemplateInstruction<0, 1, 0> {
   public:
    explicit LReturn(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(Return, "return")
  };
  
  
  class LLoadNamedField: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LLoadNamedField(LOperand* object) {
      inputs_[0] = object;
    }
  
    LOperand* object() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(LoadNamedField, "load-named-field")
    DECLARE_HYDROGEN_ACCESSOR(LoadNamedField)
  };
  
  
  class LLoadNamedFieldPolymorphic: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LLoadNamedFieldPolymorphic(LOperand* object) {
      inputs_[0] = object;
    }
  
    DECLARE_CONCRETE_INSTRUCTION(LoadNamedField, "load-named-field-polymorphic")
    DECLARE_HYDROGEN_ACCESSOR(LoadNamedFieldPolymorphic)
  
    LOperand* object() { return inputs_[0]; }
  };
  
  
  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, 0> {
   public:
    explicit LLoadFunctionPrototype(LOperand* function) {
      inputs_[0] = function;
    }
  
    DECLARE_CONCRETE_INSTRUCTION(LoadFunctionPrototype, "load-function-prototype")
    DECLARE_HYDROGEN_ACCESSOR(LoadFunctionPrototype)
  
    LOperand* function() { return inputs_[0]; }
  };
  
  
  class LLoadElements: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LLoadElements(LOperand* object) {
      inputs_[0] = object;
    }
  
    LOperand* object() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(LoadElements, "load-elements")
  };
  
  
  class LLoadExternalArrayPointer: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LLoadExternalArrayPointer(LOperand* object) {
      inputs_[0] = object;
    }
  
    LOperand* object() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(LoadExternalArrayPointer,
                                 "load-external-array-pointer")
  };
  
  
  class LLoadKeyed: public LTemplateInstruction<1, 2, 0> {
   public:
    LLoadKeyed(LOperand* elements, LOperand* key) {
      inputs_[0] = elements;
      inputs_[1] = key;
    }
  
    DECLARE_CONCRETE_INSTRUCTION(LoadKeyed, "load-keyed")
    DECLARE_HYDROGEN_ACCESSOR(LoadKeyed)
  
    bool is_external() const {
      return hydrogen()->is_external();
    }
    LOperand* elements() { return inputs_[0]; }
    LOperand* key() { return inputs_[1]; }
    virtual void PrintDataTo(StringStream* stream);
    uint32_t additional_index() const { return hydrogen()->index_offset(); }
    ElementsKind elements_kind() const {
      return hydrogen()->elements_kind();
    }
  };
  
  
  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 LLoadGlobalCell: public LTemplateInstruction<1, 0, 0> {
   public:
    DECLARE_CONCRETE_INSTRUCTION(LoadGlobalCell, "load-global-cell")
    DECLARE_HYDROGEN_ACCESSOR(LoadGlobalCell)
  };
  
  
  class LLoadGlobalGeneric: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LLoadGlobalGeneric(LOperand* global_object) {
      inputs_[0] = global_object;
    }
  
    DECLARE_CONCRETE_INSTRUCTION(LoadGlobalGeneric, "load-global-generic")
    DECLARE_HYDROGEN_ACCESSOR(LoadGlobalGeneric)
  
    LOperand* global_object() { return inputs_[0]; }
    Handle<Object> name() const { return hydrogen()->name(); }
    bool for_typeof() const { return hydrogen()->for_typeof(); }
  };
  
  
  class LStoreGlobalCell: public LTemplateInstruction<0, 1, 1> {
   public:
    explicit LStoreGlobalCell(LOperand* value, LOperand* temp) {
      inputs_[0] = value;
      temps_[0] = temp;
    }
  
    LOperand* value() { return inputs_[0]; }
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(StoreGlobalCell, "store-global-cell")
    DECLARE_HYDROGEN_ACCESSOR(StoreGlobalCell)
  };
  
  
  class LStoreGlobalGeneric: public LTemplateInstruction<0, 2, 0> {
   public:
    explicit LStoreGlobalGeneric(LOperand* global_object,
                                 LOperand* value) {
      inputs_[0] = global_object;
      inputs_[1] = value;
    }
  
    LOperand* global_object() { return inputs_[0]; }
    LOperand* value() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(StoreGlobalGeneric, "store-global-generic")
    DECLARE_HYDROGEN_ACCESSOR(StoreGlobalGeneric)
  
    Handle<Object> name() const { return hydrogen()->name(); }
    StrictModeFlag strict_mode_flag() { return hydrogen()->strict_mode_flag(); }
  };
  
  
  class LLoadContextSlot: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LLoadContextSlot(LOperand* context) {
      inputs_[0] = context;
    }
  
    LOperand* context() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(LoadContextSlot, "load-context-slot")
    DECLARE_HYDROGEN_ACCESSOR(LoadContextSlot)
  
    int slot_index() { return hydrogen()->slot_index(); }
  
    virtual void PrintDataTo(StringStream* stream);
  };
  
  
  class LStoreContextSlot: public LTemplateInstruction<0, 2, 1> {
   public:
    LStoreContextSlot(LOperand* context, LOperand* value, LOperand* temp) {
      inputs_[0] = context;
      inputs_[1] = value;
      temps_[0] = temp;
    }
  
    LOperand* context() { return inputs_[0]; }
    LOperand* value() { return inputs_[1]; }
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(StoreContextSlot, "store-context-slot")
    DECLARE_HYDROGEN_ACCESSOR(StoreContextSlot)
  
    int slot_index() { return hydrogen()->slot_index(); }
  
    virtual void PrintDataTo(StringStream* stream);
  };
  
  
  class LPushArgument: public LTemplateInstruction<0, 1, 0> {
   public:
    explicit LPushArgument(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(PushArgument, "push-argument")
  };
  
  
  class LDrop: public LTemplateInstruction<0, 0, 0> {
   public:
    explicit LDrop(int count) : count_(count) { }
  
    int count() const { return count_; }
  
    DECLARE_CONCRETE_INSTRUCTION(Drop, "drop")
  
   private:
    int count_;
  };
  
  
  class LThisFunction: public LTemplateInstruction<1, 0, 0> {
   public:
    DECLARE_CONCRETE_INSTRUCTION(ThisFunction, "this-function")
    DECLARE_HYDROGEN_ACCESSOR(ThisFunction)
  };
  
  
  class LContext: public LTemplateInstruction<1, 0, 0> {
   public:
    DECLARE_CONCRETE_INSTRUCTION(Context, "context")
    DECLARE_HYDROGEN_ACCESSOR(Context)
  };
  
  
  class LOuterContext: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LOuterContext(LOperand* context) {
      inputs_[0] = context;
    }
  
    LOperand* context() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(OuterContext, "outer-context")
  };
  
  
  class LDeclareGlobals: public LTemplateInstruction<0, 0, 0> {
   public:
    DECLARE_CONCRETE_INSTRUCTION(DeclareGlobals, "declare-globals")
    DECLARE_HYDROGEN_ACCESSOR(DeclareGlobals)
  };
  
  
  class LGlobalObject: public LTemplateInstruction<1, 0, 0> {
   public:
    DECLARE_CONCRETE_INSTRUCTION(GlobalObject, "global-object")
  };
  
  
  class LGlobalReceiver: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LGlobalReceiver(LOperand* global_object) {
      inputs_[0] = global_object;
    }
  
    LOperand* global() { return inputs_[0]; }
  
    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 LInvokeFunction: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LInvokeFunction(LOperand* function) {
      inputs_[0] = function;
    }
  
    LOperand* function() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(InvokeFunction, "invoke-function")
    DECLARE_HYDROGEN_ACCESSOR(InvokeFunction)
  
    virtual void PrintDataTo(StringStream* stream);
  
    int arity() const { return hydrogen()->argument_count() - 1; }
    Handle<JSFunction> known_function() { return hydrogen()->known_function(); }
  };
  
  
  class LCallKeyed: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LCallKeyed(LOperand* key) {
      inputs_[0] = key;
    }
  
    DECLARE_CONCRETE_INSTRUCTION(CallKeyed, "call-keyed")
    DECLARE_HYDROGEN_ACCESSOR(CallKeyed)
  
    LOperand* key() { return inputs_[0]; }
  
    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, 1, 0> {
   public:
    explicit LCallFunction(LOperand* function) {
      inputs_[0] = function;
    }
  
    DECLARE_CONCRETE_INSTRUCTION(CallFunction, "call-function")
    DECLARE_HYDROGEN_ACCESSOR(CallFunction)
  
    LOperand* function() { return inputs_[0]; }
    int arity() const { return hydrogen()->argument_count() - 1; }
  };
  
  
  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 LTemplateInstruction<1, 1, 0> {
   public:
    explicit LCallNew(LOperand* constructor) {
      inputs_[0] = constructor;
    }
  
    LOperand* constructor() { return inputs_[0]; }
  
    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)
  
    const Runtime::Function* function() const { return hydrogen()->function(); }
    int arity() const { return hydrogen()->argument_count(); }
  };
  
  
  class LInteger32ToDouble: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LInteger32ToDouble(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(Integer32ToDouble, "int32-to-double")
  };
  
  
  class LUint32ToDouble: public LTemplateInstruction<1, 1, 1> {
   public:
    explicit LUint32ToDouble(LOperand* value, LOperand* temp) {
      inputs_[0] = value;
      temps_[0] = temp;
    }
  
    LOperand* value() { return inputs_[0]; }
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(Uint32ToDouble, "uint32-to-double")
  };
  
  
  class LNumberTagI: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LNumberTagI(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(NumberTagI, "number-tag-i")
  };
  
  
  class LNumberTagU: public LTemplateInstruction<1, 1, 1> {
   public:
    explicit LNumberTagU(LOperand* value, LOperand* temp) {
      inputs_[0] = value;
      temps_[0] = temp;
    }
  
    LOperand* value() { return inputs_[0]; }
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(NumberTagU, "number-tag-u")
  };
  
  
  class LNumberTagD: public LTemplateInstruction<1, 1, 1> {
   public:
    explicit LNumberTagD(LOperand* value, LOperand* temp) {
      inputs_[0] = value;
      temps_[0] = temp;
    }
  
    LOperand* value() { return inputs_[0]; }
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(NumberTagD, "number-tag-d")
    DECLARE_HYDROGEN_ACCESSOR(Change)
  };
  
  
  // Sometimes truncating conversion from a tagged value to an int32.
  class LDoubleToI: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LDoubleToI(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(DoubleToI, "double-to-i")
    DECLARE_HYDROGEN_ACCESSOR(UnaryOperation)
  
    bool truncating() { return hydrogen()->CanTruncateToInt32(); }
  };
  
  
  // Truncating conversion from a tagged value to an int32.
  class LTaggedToI: public LTemplateInstruction<1, 1, 1> {
   public:
    LTaggedToI(LOperand* value, LOperand* temp) {
      inputs_[0] = value;
      temps_[0] = temp;
    }
  
    LOperand* value() { return inputs_[0]; }
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(TaggedToI, "tagged-to-i")
    DECLARE_HYDROGEN_ACCESSOR(UnaryOperation)
  
    bool truncating() { return hydrogen()->CanTruncateToInt32(); }
  };
  
  
  class LSmiTag: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LSmiTag(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(SmiTag, "smi-tag")
  };
  
  
  class LNumberUntagD: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LNumberUntagD(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(NumberUntagD, "double-untag")
    DECLARE_HYDROGEN_ACCESSOR(Change);
  };
  
  
  class LSmiUntag: public LTemplateInstruction<1, 1, 0> {
   public:
    LSmiUntag(LOperand* value, bool needs_check)
        : needs_check_(needs_check) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
    bool needs_check() const { return needs_check_; }
  
    DECLARE_CONCRETE_INSTRUCTION(SmiUntag, "smi-untag")
  
   private:
    bool needs_check_;
  };
  
  
  class LStoreNamedField: public LTemplateInstruction<0, 2, 1> {
   public:
    LStoreNamedField(LOperand* object, LOperand* value, LOperand* temp) {
      inputs_[0] = object;
      inputs_[1] = value;
      temps_[0] = temp;
    }
  
    LOperand* object() { return inputs_[0]; }
    LOperand* value() { return inputs_[1]; }
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(StoreNamedField, "store-named-field")
    DECLARE_HYDROGEN_ACCESSOR(StoreNamedField)
  
    virtual void PrintDataTo(StringStream* stream);
  
    Handle<Object> name() const { return hydrogen()->name(); }
    bool is_in_object() { return hydrogen()->is_in_object(); }
    int offset() { return hydrogen()->offset(); }
    Handle<Map> transition() const { return hydrogen()->transition(); }
  };
  
  
  class LStoreNamedGeneric: public LTemplateInstruction<0, 2, 0> {
   public:
    LStoreNamedGeneric(LOperand* object, LOperand* value) {
      inputs_[0] = object;
      inputs_[1] = value;
    }
  
    LOperand* object() { return inputs_[0]; }
    LOperand* value() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(StoreNamedGeneric, "store-named-generic")
    DECLARE_HYDROGEN_ACCESSOR(StoreNamedGeneric)
  
    virtual void PrintDataTo(StringStream* stream);
  
    Handle<Object> name() const { return hydrogen()->name(); }
    StrictModeFlag strict_mode_flag() { return hydrogen()->strict_mode_flag(); }
  };
  
  
  class LStoreKeyed: public LTemplateInstruction<0, 3, 0> {
   public:
    LStoreKeyed(LOperand* object, LOperand* key, LOperand* value) {
      inputs_[0] = object;
      inputs_[1] = key;
      inputs_[2] = value;
    }
  
    bool is_external() const { return hydrogen()->is_external(); }
    LOperand* elements() { return inputs_[0]; }
    LOperand* key() { return inputs_[1]; }
    LOperand* value() { return inputs_[2]; }
    ElementsKind elements_kind() const { return hydrogen()->elements_kind(); }
  
    DECLARE_CONCRETE_INSTRUCTION(StoreKeyed, "store-keyed")
    DECLARE_HYDROGEN_ACCESSOR(StoreKeyed)
  
    virtual void PrintDataTo(StringStream* stream);
    bool NeedsCanonicalization() { return hydrogen()->NeedsCanonicalization(); }
    uint32_t additional_index() const { return hydrogen()->index_offset(); }
  };
  
  
  class LStoreKeyedGeneric: public LTemplateInstruction<0, 3, 0> {
   public:
    LStoreKeyedGeneric(LOperand* object, LOperand* key, LOperand* value) {
      inputs_[0] = object;
      inputs_[1] = key;
      inputs_[2] = value;
    }
  
    LOperand* object() { return inputs_[0]; }
    LOperand* key() { return inputs_[1]; }
    LOperand* value() { return inputs_[2]; }
  
    DECLARE_CONCRETE_INSTRUCTION(StoreKeyedGeneric, "store-keyed-generic")
    DECLARE_HYDROGEN_ACCESSOR(StoreKeyedGeneric)
  
    virtual void PrintDataTo(StringStream* stream);
  
    StrictModeFlag strict_mode_flag() { return hydrogen()->strict_mode_flag(); }
  };
  
  
  class LTransitionElementsKind: public LTemplateInstruction<1, 1, 2> {
   public:
    LTransitionElementsKind(LOperand* object,
                            LOperand* new_map_temp,
                            LOperand* temp) {
      inputs_[0] = object;
      temps_[0] = new_map_temp;
      temps_[1] = temp;
    }
  
    LOperand* object() { return inputs_[0]; }
    LOperand* new_map_temp() { return temps_[0]; }
    LOperand* temp() { return temps_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(TransitionElementsKind,
                                 "transition-elements-kind")
    DECLARE_HYDROGEN_ACCESSOR(TransitionElementsKind)
  
    virtual void PrintDataTo(StringStream* stream);
  
    Handle<Map> original_map() { return hydrogen()->original_map(); }
    Handle<Map> transitioned_map() { return hydrogen()->transitioned_map(); }
    ElementsKind from_kind() { return hydrogen()->from_kind(); }
    ElementsKind to_kind() { return hydrogen()->to_kind(); }
  };
  
  
  class LTrapAllocationMemento : public LTemplateInstruction<0, 1, 1> {
   public:
    LTrapAllocationMemento(LOperand* object,
                           LOperand* temp) {
      inputs_[0] = object;
      temps_[0] = temp;
    }
  
    LOperand* object() { return inputs_[0]; }
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(TrapAllocationMemento,
                                 "trap-allocation-memento")
  };
  
  
  class LStringAdd: public LTemplateInstruction<1, 2, 0> {
   public:
    LStringAdd(LOperand* left, LOperand* right) {
      inputs_[0] = left;
      inputs_[1] = right;
    }
  
    LOperand* left() { return inputs_[0]; }
    LOperand* right() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(StringAdd, "string-add")
    DECLARE_HYDROGEN_ACCESSOR(StringAdd)
  };
  
  
  class LStringCharCodeAt: public LTemplateInstruction<1, 2, 0> {
   public:
    LStringCharCodeAt(LOperand* string, LOperand* index) {
      inputs_[0] = string;
      inputs_[1] = index;
    }
  
    LOperand* string() { return inputs_[0]; }
    LOperand* index() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(StringCharCodeAt, "string-char-code-at")
    DECLARE_HYDROGEN_ACCESSOR(StringCharCodeAt)
  };
  
  
  class LStringCharFromCode: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LStringCharFromCode(LOperand* char_code) {
      inputs_[0] = char_code;
    }
  
    LOperand* char_code() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(StringCharFromCode, "string-char-from-code")
    DECLARE_HYDROGEN_ACCESSOR(StringCharFromCode)
  };
  
  
  class LStringLength: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LStringLength(LOperand* string) {
      inputs_[0] = string;
    }
  
    LOperand* string() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(StringLength, "string-length")
    DECLARE_HYDROGEN_ACCESSOR(StringLength)
  };
  
  
  class LCheckFunction: public LTemplateInstruction<0, 1, 0> {
   public:
    explicit LCheckFunction(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(CheckFunction, "check-function")
    DECLARE_HYDROGEN_ACCESSOR(CheckFunction)
  };
  
  
  class LCheckInstanceType: public LTemplateInstruction<0, 1, 0> {
   public:
    explicit LCheckInstanceType(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(CheckInstanceType, "check-instance-type")
    DECLARE_HYDROGEN_ACCESSOR(CheckInstanceType)
  };
  
  
  class LCheckMaps: public LTemplateInstruction<0, 1, 0> {
   public:
    explicit LCheckMaps(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(CheckMaps, "check-maps")
    DECLARE_HYDROGEN_ACCESSOR(CheckMaps)
  };
  
  
  class LCheckPrototypeMaps: public LTemplateInstruction<1, 0, 1> {
   public:
    explicit LCheckPrototypeMaps(LOperand* temp)  {
      temps_[0] = temp;
    }
  
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(CheckPrototypeMaps, "check-prototype-maps")
    DECLARE_HYDROGEN_ACCESSOR(CheckPrototypeMaps)
  
    ZoneList<Handle<JSObject> >* prototypes() const {
      return hydrogen()->prototypes();
    }
    ZoneList<Handle<Map> >* maps() const { return hydrogen()->maps(); }
  };
  
  
  class LCheckSmi: public LTemplateInstruction<0, 1, 0> {
   public:
    explicit LCheckSmi(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(CheckSmi, "check-smi")
  };
  
  
  class LClampDToUint8: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LClampDToUint8(LOperand* unclamped) {
      inputs_[0] = unclamped;
    }
  
    LOperand* unclamped() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(ClampDToUint8, "clamp-d-to-uint8")
  };
  
  
  class LClampIToUint8: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LClampIToUint8(LOperand* unclamped) {
      inputs_[0] = unclamped;
    }
  
    LOperand* unclamped() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(ClampIToUint8, "clamp-i-to-uint8")
  };
  
  
  class LClampTToUint8: public LTemplateInstruction<1, 1, 1> {
   public:
    LClampTToUint8(LOperand* unclamped,
                   LOperand* temp_xmm) {
      inputs_[0] = unclamped;
      temps_[0] = temp_xmm;
    }
  
    LOperand* unclamped() { return inputs_[0]; }
    LOperand* temp_xmm() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(ClampTToUint8, "clamp-t-to-uint8")
  };
  
  
  class LCheckNonSmi: public LTemplateInstruction<0, 1, 0> {
   public:
    explicit LCheckNonSmi(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(CheckNonSmi, "check-non-smi")
  };
  
  
  class LAllocateObject: public LTemplateInstruction<1, 0, 1> {
   public:
    explicit LAllocateObject(LOperand* temp) {
      temps_[0] = temp;
    }
  
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(AllocateObject, "allocate-object")
    DECLARE_HYDROGEN_ACCESSOR(AllocateObject)
  };
  
  
  class LAllocate: public LTemplateInstruction<1, 1, 1> {
   public:
    LAllocate(LOperand* size, LOperand* temp) {
      inputs_[0] = size;
      temps_[0] = temp;
    }
  
    LOperand* size() { return inputs_[0]; }
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(Allocate, "allocate")
    DECLARE_HYDROGEN_ACCESSOR(Allocate)
  };
  
  
  class LFastLiteral: public LTemplateInstruction<1, 0, 0> {
   public:
    DECLARE_CONCRETE_INSTRUCTION(FastLiteral, "fast-literal")
    DECLARE_HYDROGEN_ACCESSOR(FastLiteral)
  };
  
  
  class LArrayLiteral: public LTemplateInstruction<1, 0, 0> {
   public:
    DECLARE_CONCRETE_INSTRUCTION(ArrayLiteral, "array-literal")
    DECLARE_HYDROGEN_ACCESSOR(ArrayLiteral)
  };
  
  
  class LObjectLiteral: public LTemplateInstruction<1, 0, 0> {
   public:
    DECLARE_CONCRETE_INSTRUCTION(ObjectLiteral, "object-literal")
    DECLARE_HYDROGEN_ACCESSOR(ObjectLiteral)
  };
  
  
  class LRegExpLiteral: public LTemplateInstruction<1, 0, 0> {
   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 LToFastProperties: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LToFastProperties(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(ToFastProperties, "to-fast-properties")
    DECLARE_HYDROGEN_ACCESSOR(ToFastProperties)
  };
  
  
  class LTypeof: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LTypeof(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(Typeof, "typeof")
  };
  
  
  class LTypeofIsAndBranch: public LControlInstruction<1, 0> {
   public:
    explicit LTypeofIsAndBranch(LOperand* value) {
      inputs_[0] = value;
    }
  
    LOperand* value() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(TypeofIsAndBranch, "typeof-is-and-branch")
    DECLARE_HYDROGEN_ACCESSOR(TypeofIsAndBranch)
  
    Handle<String> type_literal() { return hydrogen()->type_literal(); }
  
    virtual void PrintDataTo(StringStream* stream);
  };
  
  
  class LIsConstructCallAndBranch: public LControlInstruction<0, 1> {
   public:
    explicit LIsConstructCallAndBranch(LOperand* temp) {
      temps_[0] = temp;
    }
  
    LOperand* temp() { return temps_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(IsConstructCallAndBranch,
                                 "is-construct-call-and-branch")
    DECLARE_HYDROGEN_ACCESSOR(IsConstructCallAndBranch)
  };
  
  
  class LDeleteProperty: public LTemplateInstruction<1, 2, 0> {
   public:
    LDeleteProperty(LOperand* obj, LOperand* key) {
      inputs_[0] = obj;
      inputs_[1] = key;
    }
  
    LOperand* object() { return inputs_[0]; }
    LOperand* key() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(DeleteProperty, "delete-property")
  };
  
  
  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::kMaxNumAllocatableRegisters];
    LOperand* double_register_spills_[
        DoubleRegister::kMaxNumAllocatableRegisters];
  };
  
  
  class LStackCheck: public LTemplateInstruction<0, 0, 0> {
   public:
    DECLARE_CONCRETE_INSTRUCTION(StackCheck, "stack-check")
    DECLARE_HYDROGEN_ACCESSOR(StackCheck)
  
    Label* done_label() { return &done_label_; }
  
   private:
    Label done_label_;
  };
  
  
  class LForInPrepareMap: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LForInPrepareMap(LOperand* object) {
      inputs_[0] = object;
    }
  
    LOperand* object() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(ForInPrepareMap, "for-in-prepare-map")
  };
  
  
  class LForInCacheArray: public LTemplateInstruction<1, 1, 0> {
   public:
    explicit LForInCacheArray(LOperand* map) {
      inputs_[0] = map;
    }
  
    LOperand* map() { return inputs_[0]; }
  
    DECLARE_CONCRETE_INSTRUCTION(ForInCacheArray, "for-in-cache-array")
  
    int idx() {
      return HForInCacheArray::cast(this->hydrogen_value())->idx();
    }
  };
  
  
  class LCheckMapValue: public LTemplateInstruction<0, 2, 0> {
   public:
    LCheckMapValue(LOperand* value, LOperand* map) {
      inputs_[0] = value;
      inputs_[1] = map;
    }
  
    LOperand* value() { return inputs_[0]; }
    LOperand* map() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(CheckMapValue, "check-map-value")
  };
  
  
  class LLoadFieldByIndex: public LTemplateInstruction<1, 2, 0> {
   public:
    LLoadFieldByIndex(LOperand* object, LOperand* index) {
      inputs_[0] = object;
      inputs_[1] = index;
    }
  
    LOperand* object() { return inputs_[0]; }
    LOperand* index() { return inputs_[1]; }
  
    DECLARE_CONCRETE_INSTRUCTION(LoadFieldByIndex, "load-field-by-index")
  };
  
  
  class LChunkBuilder;
  class LPlatformChunk: public LChunk {
   public:
    LPlatformChunk(CompilationInfo* info, HGraph* graph)
        : LChunk(info, graph) { }
  
    int GetNextSpillIndex(bool is_double);
    LOperand* GetNextSpillSlot(bool is_double);
  };
  
  
  class LChunkBuilder BASE_EMBEDDED {
   public:
    LChunkBuilder(CompilationInfo* info, HGraph* graph, LAllocator* allocator)
        : chunk_(NULL),
          info_(info),
          graph_(graph),
          zone_(graph->zone()),
          status_(UNUSED),
          current_instruction_(NULL),
          current_block_(NULL),
          next_block_(NULL),
          argument_count_(0),
          allocator_(allocator),
          position_(RelocInfo::kNoPosition),
          instruction_pending_deoptimization_environment_(NULL),
          pending_deoptimization_ast_id_(BailoutId::None()) { }
  
    // Build the sequence for the graph.
    LPlatformChunk* 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
  
    static HValue* SimplifiedDividendForMathFloorOfDiv(HValue* val);
    static HValue* SimplifiedDivisorForMathFloorOfDiv(HValue* val);
  
   private:
    enum Status {
      UNUSED,
      BUILDING,
      DONE,
      ABORTED
    };
  
    LPlatformChunk* chunk() const { return chunk_; }
    CompilationInfo* info() const { return info_; }
    HGraph* graph() const { return graph_; }
    Zone* zone() const { return zone_; }
  
    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* reason);
  
    // Methods for getting operands for Use / Define / Temp.
    LUnallocated* ToUnallocated(Register reg);
    LUnallocated* ToUnallocated(XMMRegister reg);
  
    // Methods for setting up define-use relationships.
    MUST_USE_RESULT LOperand* Use(HValue* value, LUnallocated* operand);
    MUST_USE_RESULT LOperand* UseFixed(HValue* value, Register fixed_register);
    MUST_USE_RESULT 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).
    MUST_USE_RESULT LOperand* UseRegister(HValue* value);
    MUST_USE_RESULT LOperand* UseRegisterAtStart(HValue* value);
  
    // An input operand in a register that may be trashed.
    MUST_USE_RESULT LOperand* UseTempRegister(HValue* value);
  
    // An input operand in a register or stack slot.
    MUST_USE_RESULT LOperand* Use(HValue* value);
    MUST_USE_RESULT LOperand* UseAtStart(HValue* value);
  
    // An input operand in a register, stack slot or a constant operand.
    MUST_USE_RESULT LOperand* UseOrConstant(HValue* value);
    MUST_USE_RESULT LOperand* UseOrConstantAtStart(HValue* value);
  
    // An input operand in a register or a constant operand.
    MUST_USE_RESULT LOperand* UseRegisterOrConstant(HValue* value);
    MUST_USE_RESULT LOperand* UseRegisterOrConstantAtStart(HValue* value);
  
    // An input operand in register, stack slot or a constant operand.
    // Will not be moved to a register even if one is freely available.
    MUST_USE_RESULT LOperand* UseAny(HValue* value);
  
    // Temporary operand that must be in a register.
    MUST_USE_RESULT LUnallocated* TempRegister();
    MUST_USE_RESULT LOperand* FixedTemp(Register reg);
    MUST_USE_RESULT LOperand* FixedTemp(XMMRegister reg);
  
    // 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* 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);
    // Assigns an environment to an instruction.  An instruction which can
    // deoptimize must have an environment.
    LInstruction* AssignEnvironment(LInstruction* instr);
    // Assigns a pointer map to an instruction.  An instruction which can
    // trigger a GC or a lazy deoptimization must have a pointer map.
    LInstruction* AssignPointerMap(LInstruction* instr);
  
    enum CanDeoptimize { CAN_DEOPTIMIZE_EAGERLY, CANNOT_DEOPTIMIZE_EAGERLY };
  
    // Marks a call for the register allocator.  Assigns a pointer map to
    // support GC and lazy deoptimization.  Assigns an environment to support
    // eager deoptimization if CAN_DEOPTIMIZE_EAGERLY.
    LInstruction* MarkAsCall(
        LInstruction* instr,
        HInstruction* hinstr,
        CanDeoptimize can_deoptimize = CANNOT_DEOPTIMIZE_EAGERLY);
  
    LEnvironment* CreateEnvironment(HEnvironment* hydrogen_env,
                                    int* argument_index_accumulator);
  
    void VisitInstruction(HInstruction* current);
  
    void DoBasicBlock(HBasicBlock* block, HBasicBlock* next_block);
    LInstruction* DoShift(Token::Value op, HBitwiseBinaryOperation* instr);
    LInstruction* DoArithmeticD(Token::Value op,
                                HArithmeticBinaryOperation* instr);
    LInstruction* DoArithmeticT(Token::Value op,
                                HArithmeticBinaryOperation* instr);
  
    LPlatformChunk* chunk_;
    CompilationInfo* info_;
    HGraph* const graph_;
    Zone* zone_;
    Status status_;
    HInstruction* current_instruction_;
    HBasicBlock* current_block_;
    HBasicBlock* next_block_;
    int argument_count_;
    LAllocator* allocator_;
    int position_;
    LInstruction* instruction_pending_deoptimization_environment_;
    BailoutId pending_deoptimization_ast_id_;
  
    DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
  };
  
  #undef DECLARE_HYDROGEN_ACCESSOR
  #undef DECLARE_CONCRETE_INSTRUCTION
  
  } }  // namespace v8::int
  
  #endif  // V8_X64_LITHIUM_X64_H_
  