lithium-arm64.h 89.6 KB
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// Copyright 2013 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
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#ifndef V8_ARM64_LITHIUM_ARM64_H_
#define V8_ARM64_LITHIUM_ARM64_H_
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#include "src/hydrogen.h"
#include "src/lithium.h"
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#include "src/lithium-allocator.h"
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#include "src/safepoint-table.h"
#include "src/utils.h"
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namespace v8 {
namespace internal {

// Forward declarations.
class LCodeGen;

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#define LITHIUM_CONCRETE_INSTRUCTION_LIST(V) \
  V(AccessArgumentsAt)                       \
  V(AddE)                                    \
  V(AddI)                                    \
  V(AddS)                                    \
  V(Allocate)                                \
  V(AllocateBlockContext)                    \
  V(ApplyArguments)                          \
  V(ArgumentsElements)                       \
  V(ArgumentsLength)                         \
  V(ArithmeticD)                             \
  V(ArithmeticT)                             \
  V(BitI)                                    \
  V(BitS)                                    \
  V(BoundsCheck)                             \
  V(Branch)                                  \
  V(CallFunction)                            \
  V(CallJSFunction)                          \
  V(CallNew)                                 \
  V(CallNewArray)                            \
  V(CallRuntime)                             \
  V(CallStub)                                \
  V(CallWithDescriptor)                      \
  V(CheckInstanceType)                       \
  V(CheckMapValue)                           \
  V(CheckMaps)                               \
  V(CheckNonSmi)                             \
  V(CheckSmi)                                \
  V(CheckValue)                              \
  V(ClampDToUint8)                           \
  V(ClampIToUint8)                           \
  V(ClampTToUint8)                           \
  V(ClassOfTestAndBranch)                    \
  V(CmpHoleAndBranchD)                       \
  V(CmpHoleAndBranchT)                       \
  V(CmpMapAndBranch)                         \
  V(CmpObjectEqAndBranch)                    \
  V(CmpT)                                    \
  V(CompareMinusZeroAndBranch)               \
  V(CompareNumericAndBranch)                 \
  V(ConstantD)                               \
  V(ConstantE)                               \
  V(ConstantI)                               \
  V(ConstantS)                               \
  V(ConstantT)                               \
  V(ConstructDouble)                         \
  V(Context)                                 \
  V(DateField)                               \
  V(DebugBreak)                              \
  V(DeclareGlobals)                          \
  V(Deoptimize)                              \
  V(DivByConstI)                             \
  V(DivByPowerOf2I)                          \
  V(DivI)                                    \
  V(DoubleBits)                              \
  V(DoubleToIntOrSmi)                        \
  V(Drop)                                    \
  V(Dummy)                                   \
  V(DummyUse)                                \
  V(FlooringDivByConstI)                     \
  V(FlooringDivByPowerOf2I)                  \
  V(FlooringDivI)                            \
  V(ForInCacheArray)                         \
  V(ForInPrepareMap)                         \
  V(FunctionLiteral)                         \
  V(GetCachedArrayIndex)                     \
  V(Goto)                                    \
  V(HasCachedArrayIndexAndBranch)            \
  V(HasInstanceTypeAndBranch)                \
  V(InnerAllocatedObject)                    \
  V(InstanceOf)                              \
  V(InstanceOfKnownGlobal)                   \
  V(InstructionGap)                          \
  V(Integer32ToDouble)                       \
  V(InvokeFunction)                          \
  V(IsConstructCallAndBranch)                \
  V(IsObjectAndBranch)                       \
  V(IsSmiAndBranch)                          \
  V(IsStringAndBranch)                       \
  V(IsUndetectableAndBranch)                 \
  V(Label)                                   \
  V(LazyBailout)                             \
  V(LoadContextSlot)                         \
  V(LoadFieldByIndex)                        \
  V(LoadFunctionPrototype)                   \
  V(LoadGlobalGeneric)                       \
  V(LoadKeyedExternal)                       \
  V(LoadKeyedFixed)                          \
  V(LoadKeyedFixedDouble)                    \
  V(LoadKeyedGeneric)                        \
  V(LoadNamedField)                          \
  V(LoadNamedGeneric)                        \
  V(LoadRoot)                                \
  V(MapEnumLength)                           \
  V(MathAbs)                                 \
  V(MathAbsTagged)                           \
  V(MathClz32)                               \
  V(MathExp)                                 \
  V(MathFloorD)                              \
  V(MathFloorI)                              \
  V(MathFround)                              \
  V(MathLog)                                 \
  V(MathMinMax)                              \
  V(MathPowHalf)                             \
  V(MathRoundD)                              \
  V(MathRoundI)                              \
  V(MathSqrt)                                \
  V(ModByConstI)                             \
  V(ModByPowerOf2I)                          \
  V(ModI)                                    \
  V(MulConstIS)                              \
  V(MulI)                                    \
  V(MulS)                                    \
  V(NumberTagD)                              \
  V(NumberTagU)                              \
  V(NumberUntagD)                            \
  V(OsrEntry)                                \
  V(Parameter)                               \
  V(Power)                                   \
  V(PreparePushArguments)                    \
  V(PushArguments)                           \
  V(RegExpLiteral)                           \
  V(Return)                                  \
  V(SeqStringGetChar)                        \
  V(SeqStringSetChar)                        \
  V(ShiftI)                                  \
  V(ShiftS)                                  \
  V(SmiTag)                                  \
  V(SmiUntag)                                \
  V(StackCheck)                              \
  V(StoreCodeEntry)                          \
  V(StoreContextSlot)                        \
  V(StoreFrameContext)                       \
  V(StoreKeyedExternal)                      \
  V(StoreKeyedFixed)                         \
  V(StoreKeyedFixedDouble)                   \
  V(StoreKeyedGeneric)                       \
  V(StoreNamedField)                         \
  V(StoreNamedGeneric)                       \
  V(StringAdd)                               \
  V(StringCharCodeAt)                        \
  V(StringCharFromCode)                      \
  V(StringCompareAndBranch)                  \
  V(SubI)                                    \
  V(SubS)                                    \
  V(TaggedToI)                               \
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  V(TailCallThroughMegamorphicCache)         \
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  V(ThisFunction)                            \
  V(ToFastProperties)                        \
  V(TransitionElementsKind)                  \
  V(TrapAllocationMemento)                   \
  V(TruncateDoubleToIntOrSmi)                \
  V(Typeof)                                  \
  V(TypeofIsAndBranch)                       \
  V(Uint32ToDouble)                          \
  V(UnknownOSRValue)                         \
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  V(WrapReceiver)


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#define DECLARE_CONCRETE_INSTRUCTION(type, mnemonic)            \
  Opcode opcode() const FINAL { return LInstruction::k##type; } \
  void CompileToNative(LCodeGen* generator) FINAL;              \
  const char* Mnemonic() const FINAL { return mnemonic; }       \
  static L##type* cast(LInstruction* instr) {                   \
    DCHECK(instr->Is##type());                                  \
    return reinterpret_cast<L##type*>(instr);                   \
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  }


#define DECLARE_HYDROGEN_ACCESSOR(type)           \
  H##type* hydrogen() const {                     \
    return H##type::cast(this->hydrogen_value()); \
  }


class LInstruction : public ZoneObject {
 public:
  LInstruction()
      : environment_(NULL),
        hydrogen_value_(NULL),
        bit_field_(IsCallBits::encode(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; }

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  // Try deleting this instruction if possible.
  virtual bool TryDelete() { return false; }

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  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_; }

  virtual void SetDeferredLazyDeoptimizationEnvironment(LEnvironment* env) { }

  void MarkAsCall() { bit_field_ = IsCallBits::update(bit_field_, true); }
  bool IsCall() const { return IsCallBits::decode(bit_field_); }

  // Interface to the register allocator and iterators.
  bool ClobbersTemps() const { return IsCall(); }
  bool ClobbersRegisters() const { return IsCall(); }
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  virtual bool ClobbersDoubleRegisters(Isolate* isolate) const {
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    return IsCall();
  }
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  bool IsMarkedAsCall() const { return IsCall(); }

  virtual bool HasResult() const = 0;
  virtual LOperand* result() const = 0;

  virtual int InputCount() = 0;
  virtual LOperand* InputAt(int i) = 0;
  virtual int TempCount() = 0;
  virtual LOperand* TempAt(int i) = 0;

  LOperand* FirstInput() { return InputAt(0); }
  LOperand* Output() { return HasResult() ? result() : NULL; }

  virtual bool HasInterestingComment(LCodeGen* gen) const { return true; }

#ifdef DEBUG
  void VerifyCall();
#endif

 private:
  class IsCallBits: public BitField<bool, 0, 1> {};

  LEnvironment* environment_;
  SetOncePointer<LPointerMap> pointer_map_;
  HValue* hydrogen_value_;
  int32_t bit_field_;
};


// R = number of result operands (0 or 1).
template<int R>
class LTemplateResultInstruction : public LInstruction {
 public:
  // Allow 0 or 1 output operands.
  STATIC_ASSERT(R == 0 || R == 1);
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  bool HasResult() const FINAL { return (R != 0) && (result() != NULL); }
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  void set_result(LOperand* operand) { results_[0] = operand; }
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  LOperand* result() const OVERRIDE { return results_[0]; }
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 protected:
  EmbeddedContainer<LOperand*, R> results_;
};


// 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 LTemplateResultInstruction<R> {
 protected:
  EmbeddedContainer<LOperand*, I> inputs_;
  EmbeddedContainer<LOperand*, T> temps_;

 private:
  // Iterator support.
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  int InputCount() FINAL { return I; }
  LOperand* InputAt(int i) FINAL { return inputs_[i]; }
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  int TempCount() FINAL { return T; }
  LOperand* TempAt(int i) FINAL { return temps_[i]; }
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};


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class LTailCallThroughMegamorphicCache FINAL
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    : public LTemplateInstruction<0, 5, 0> {
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 public:
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  LTailCallThroughMegamorphicCache(LOperand* context, LOperand* receiver,
                                   LOperand* name, LOperand* slot,
                                   LOperand* vector) {
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    inputs_[0] = context;
    inputs_[1] = receiver;
    inputs_[2] = name;
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    inputs_[3] = slot;
    inputs_[4] = vector;
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  }

  LOperand* context() { return inputs_[0]; }
  LOperand* receiver() { return inputs_[1]; }
  LOperand* name() { return inputs_[2]; }
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  LOperand* slot() { return inputs_[3]; }
  LOperand* vector() { return inputs_[4]; }
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  DECLARE_CONCRETE_INSTRUCTION(TailCallThroughMegamorphicCache,
                               "tail-call-through-megamorphic-cache")
  DECLARE_HYDROGEN_ACCESSOR(TailCallThroughMegamorphicCache)
};


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class LUnknownOSRValue FINAL : public LTemplateInstruction<1, 0, 0> {
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 public:
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  bool HasInterestingComment(LCodeGen* gen) const OVERRIDE { return false; }
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  DECLARE_CONCRETE_INSTRUCTION(UnknownOSRValue, "unknown-osr-value")
};


template<int I, int T>
class LControlInstruction : public LTemplateInstruction<0, I, T> {
 public:
  LControlInstruction() : false_label_(NULL), true_label_(NULL) { }

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  bool IsControl() const FINAL { return true; }
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  int SuccessorCount() { return hydrogen()->SuccessorCount(); }
  HBasicBlock* SuccessorAt(int i) { return hydrogen()->SuccessorAt(i); }

  int TrueDestination(LChunk* chunk) {
    return chunk->LookupDestination(true_block_id());
  }

  int FalseDestination(LChunk* chunk) {
    return chunk->LookupDestination(false_block_id());
  }

  Label* TrueLabel(LChunk* chunk) {
    if (true_label_ == NULL) {
      true_label_ = chunk->GetAssemblyLabel(TrueDestination(chunk));
    }
    return true_label_;
  }

  Label* FalseLabel(LChunk* chunk) {
    if (false_label_ == NULL) {
      false_label_ = chunk->GetAssemblyLabel(FalseDestination(chunk));
    }
    return false_label_;
  }

 protected:
  int true_block_id() { return SuccessorAt(0)->block_id(); }
  int false_block_id() { return SuccessorAt(1)->block_id(); }

 private:
  DECLARE_HYDROGEN_ACCESSOR(ControlInstruction);

  Label* false_label_;
  Label* true_label_;
};


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.
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  bool IsGap() const OVERRIDE { return true; }
  void PrintDataTo(StringStream* stream) OVERRIDE;
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  static LGap* cast(LInstruction* instr) {
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    DCHECK(instr->IsGap());
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    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_;
};


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class LInstructionGap FINAL : public LGap {
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 public:
  explicit LInstructionGap(HBasicBlock* block) : LGap(block) { }

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  bool HasInterestingComment(LCodeGen* gen) const OVERRIDE {
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    return !IsRedundant();
  }

  DECLARE_CONCRETE_INSTRUCTION(InstructionGap, "gap")
};


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class LDrop FINAL : public LTemplateInstruction<0, 0, 0> {
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 public:
  explicit LDrop(int count) : count_(count) { }

  int count() const { return count_; }

  DECLARE_CONCRETE_INSTRUCTION(Drop, "drop")

 private:
  int count_;
};


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class LDummy FINAL : public LTemplateInstruction<1, 0, 0> {
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 public:
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  LDummy() {}
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  DECLARE_CONCRETE_INSTRUCTION(Dummy, "dummy")
};


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class LDummyUse FINAL : public LTemplateInstruction<1, 1, 0> {
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 public:
  explicit LDummyUse(LOperand* value) {
    inputs_[0] = value;
  }
  DECLARE_CONCRETE_INSTRUCTION(DummyUse, "dummy-use")
};


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class LGoto FINAL : public LTemplateInstruction<0, 0, 0> {
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 public:
  explicit LGoto(HBasicBlock* block) : block_(block) { }

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  bool HasInterestingComment(LCodeGen* gen) const OVERRIDE;
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  DECLARE_CONCRETE_INSTRUCTION(Goto, "goto")
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  void PrintDataTo(StringStream* stream) OVERRIDE;
  bool IsControl() const OVERRIDE { return true; }
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  int block_id() const { return block_->block_id(); }

 private:
  HBasicBlock* block_;
};


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class LLazyBailout FINAL : public LTemplateInstruction<0, 0, 0> {
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 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_;
};


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class LLabel FINAL : public LGap {
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 public:
  explicit LLabel(HBasicBlock* block)
      : LGap(block), replacement_(NULL) { }

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  bool HasInterestingComment(LCodeGen* gen) const OVERRIDE { return false; }
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  DECLARE_CONCRETE_INSTRUCTION(Label, "label")

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  void PrintDataTo(StringStream* stream) OVERRIDE;
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  int block_id() const { return block()->block_id(); }
  bool is_loop_header() const { return block()->IsLoopHeader(); }
  bool is_osr_entry() const { return block()->is_osr_entry(); }
  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_;
};


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class LOsrEntry FINAL : public LTemplateInstruction<0, 0, 0> {
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 public:
  LOsrEntry() {}

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  bool HasInterestingComment(LCodeGen* gen) const OVERRIDE { return false; }
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  DECLARE_CONCRETE_INSTRUCTION(OsrEntry, "osr-entry")
};


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class LAccessArgumentsAt FINAL : public LTemplateInstruction<1, 3, 0> {
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 public:
  LAccessArgumentsAt(LOperand* arguments,
                     LOperand* length,
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                     LOperand* index) {
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    inputs_[0] = arguments;
    inputs_[1] = length;
    inputs_[2] = index;
  }

  DECLARE_CONCRETE_INSTRUCTION(AccessArgumentsAt, "access-arguments-at")

  LOperand* arguments() { return inputs_[0]; }
  LOperand* length() { return inputs_[1]; }
  LOperand* index() { return inputs_[2]; }

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  void PrintDataTo(StringStream* stream) OVERRIDE;
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};


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class LAddE FINAL : public LTemplateInstruction<1, 2, 0> {
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 public:
  LAddE(LOperand* left, LOperand* right) {
    inputs_[0] = left;
    inputs_[1] = right;
  }

  LOperand* left() { return inputs_[0]; }
  LOperand* right() { return inputs_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(AddE, "add-e")
  DECLARE_HYDROGEN_ACCESSOR(Add)
};


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class LAddI FINAL : public LTemplateInstruction<1, 2, 0> {
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 public:
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  LAddI(LOperand* left, LOperand* right)
      : shift_(NO_SHIFT), shift_amount_(0)  {
    inputs_[0] = left;
    inputs_[1] = right;
  }

  LAddI(LOperand* left, LOperand* right, Shift shift, LOperand* shift_amount)
      : shift_(shift), shift_amount_(shift_amount)  {
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    inputs_[0] = left;
    inputs_[1] = right;
  }

  LOperand* left() { return inputs_[0]; }
  LOperand* right() { return inputs_[1]; }

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  Shift shift() const { return shift_; }
  LOperand* shift_amount() const { return shift_amount_; }

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  DECLARE_CONCRETE_INSTRUCTION(AddI, "add-i")
  DECLARE_HYDROGEN_ACCESSOR(Add)
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 protected:
  Shift shift_;
  LOperand* shift_amount_;
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};


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class LAddS FINAL : public LTemplateInstruction<1, 2, 0> {
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 public:
  LAddS(LOperand* left, LOperand* right) {
    inputs_[0] = left;
    inputs_[1] = right;
  }

  LOperand* left() { return inputs_[0]; }
  LOperand* right() { return inputs_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(AddS, "add-s")
  DECLARE_HYDROGEN_ACCESSOR(Add)
};


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class LAllocate FINAL : public LTemplateInstruction<1, 2, 3> {
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 public:
  LAllocate(LOperand* context,
            LOperand* size,
            LOperand* temp1,
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            LOperand* temp2,
            LOperand* temp3) {
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    inputs_[0] = context;
    inputs_[1] = size;
    temps_[0] = temp1;
    temps_[1] = temp2;
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    temps_[2] = temp3;
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  }

  LOperand* context() { return inputs_[0]; }
  LOperand* size() { return inputs_[1]; }
  LOperand* temp1() { return temps_[0]; }
  LOperand* temp2() { return temps_[1]; }
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  LOperand* temp3() { return temps_[2]; }
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  DECLARE_CONCRETE_INSTRUCTION(Allocate, "allocate")
  DECLARE_HYDROGEN_ACCESSOR(Allocate)
};


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class LApplyArguments FINAL : public LTemplateInstruction<1, 4, 0> {
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 public:
  LApplyArguments(LOperand* function,
                  LOperand* receiver,
                  LOperand* length,
                  LOperand* elements) {
    inputs_[0] = function;
    inputs_[1] = receiver;
    inputs_[2] = length;
    inputs_[3] = elements;
  }

  DECLARE_CONCRETE_INSTRUCTION(ApplyArguments, "apply-arguments")

  LOperand* function() { return inputs_[0]; }
  LOperand* receiver() { return inputs_[1]; }
  LOperand* length() { return inputs_[2]; }
  LOperand* elements() { return inputs_[3]; }
};


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class LArgumentsElements FINAL : public LTemplateInstruction<1, 0, 1> {
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 public:
  explicit LArgumentsElements(LOperand* temp) {
    temps_[0] = temp;
  }

  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(ArgumentsElements, "arguments-elements")
  DECLARE_HYDROGEN_ACCESSOR(ArgumentsElements)
};


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class LArgumentsLength FINAL : public LTemplateInstruction<1, 1, 0> {
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 public:
  explicit LArgumentsLength(LOperand* elements) {
    inputs_[0] = elements;
  }

  LOperand* elements() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(ArgumentsLength, "arguments-length")
};


700
class LArithmeticD FINAL : public LTemplateInstruction<1, 2, 0> {
701 702 703 704 705 706 707 708 709 710 711 712 713
 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]; }

714 715 716
  Opcode opcode() const OVERRIDE { return LInstruction::kArithmeticD; }
  void CompileToNative(LCodeGen* generator) OVERRIDE;
  const char* Mnemonic() const OVERRIDE;
717 718 719 720 721 722

 private:
  Token::Value op_;
};


723
class LArithmeticT FINAL : public LTemplateInstruction<1, 3, 0> {
724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739
 public:
  LArithmeticT(Token::Value op,
               LOperand* context,
               LOperand* left,
               LOperand* right)
      : op_(op) {
    inputs_[0] = context;
    inputs_[1] = left;
    inputs_[2] = right;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* left() { return inputs_[1]; }
  LOperand* right() { return inputs_[2]; }
  Token::Value op() const { return op_; }

740 741 742
  Opcode opcode() const OVERRIDE { return LInstruction::kArithmeticT; }
  void CompileToNative(LCodeGen* generator) OVERRIDE;
  const char* Mnemonic() const OVERRIDE;
743 744 745 746 747 748

 private:
  Token::Value op_;
};


749
class LBoundsCheck FINAL : public LTemplateInstruction<0, 2, 0> {
750 751 752 753 754 755 756 757 758 759 760 761 762 763
 public:
  explicit 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)
};


764
class LBitI FINAL : public LTemplateInstruction<1, 2, 0> {
765
 public:
766 767 768 769 770 771 772 773
  LBitI(LOperand* left, LOperand* right)
      : shift_(NO_SHIFT), shift_amount_(0)  {
    inputs_[0] = left;
    inputs_[1] = right;
  }

  LBitI(LOperand* left, LOperand* right, Shift shift, LOperand* shift_amount)
      : shift_(shift), shift_amount_(shift_amount)  {
774 775 776 777 778 779 780
    inputs_[0] = left;
    inputs_[1] = right;
  }

  LOperand* left() { return inputs_[0]; }
  LOperand* right() { return inputs_[1]; }

781 782 783
  Shift shift() const { return shift_; }
  LOperand* shift_amount() const { return shift_amount_; }

784 785 786 787
  Token::Value op() const { return hydrogen()->op(); }

  DECLARE_CONCRETE_INSTRUCTION(BitI, "bit-i")
  DECLARE_HYDROGEN_ACCESSOR(Bitwise)
788 789 790 791

 protected:
  Shift shift_;
  LOperand* shift_amount_;
792 793 794
};


795
class LBitS FINAL : public LTemplateInstruction<1, 2, 0> {
796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811
 public:
  LBitS(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(BitS, "bit-s")
  DECLARE_HYDROGEN_ACCESSOR(Bitwise)
};


812
class LBranch FINAL : public LControlInstruction<1, 2> {
813 814 815 816 817 818 819 820 821 822 823 824 825 826
 public:
  explicit LBranch(LOperand* value, LOperand *temp1, LOperand *temp2) {
    inputs_[0] = value;
    temps_[0] = temp1;
    temps_[1] = temp2;
  }

  LOperand* value() { return inputs_[0]; }
  LOperand* temp1() { return temps_[0]; }
  LOperand* temp2() { return temps_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(Branch, "branch")
  DECLARE_HYDROGEN_ACCESSOR(Branch)

827
  void PrintDataTo(StringStream* stream) OVERRIDE;
828 829 830
};


831
class LCallJSFunction FINAL : public LTemplateInstruction<1, 1, 0> {
832 833 834 835 836 837 838 839 840 841
 public:
  explicit LCallJSFunction(LOperand* function) {
    inputs_[0] = function;
  }

  LOperand* function() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(CallJSFunction, "call-js-function")
  DECLARE_HYDROGEN_ACCESSOR(CallJSFunction)

842
  void PrintDataTo(StringStream* stream) OVERRIDE;
843 844 845 846 847

  int arity() const { return hydrogen()->argument_count() - 1; }
};


848
class LCallFunction FINAL : public LTemplateInstruction<1, 2, 2> {
849
 public:
850 851
  LCallFunction(LOperand* context, LOperand* function, LOperand* slot,
                LOperand* vector) {
852 853
    inputs_[0] = context;
    inputs_[1] = function;
854 855
    temps_[0] = slot;
    temps_[1] = vector;
856 857 858 859
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* function() { return inputs_[1]; }
860 861
  LOperand* temp_slot() { return temps_[0]; }
  LOperand* temp_vector() { return temps_[1]; }
862 863 864 865 866

  DECLARE_CONCRETE_INSTRUCTION(CallFunction, "call-function")
  DECLARE_HYDROGEN_ACCESSOR(CallFunction)

  int arity() const { return hydrogen()->argument_count() - 1; }
867
  void PrintDataTo(StringStream* stream) OVERRIDE;
868 869 870
};


871
class LCallNew FINAL : public LTemplateInstruction<1, 2, 0> {
872 873 874 875 876 877 878 879 880 881 882 883
 public:
  LCallNew(LOperand* context, LOperand* constructor) {
    inputs_[0] = context;
    inputs_[1] = constructor;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* constructor() { return inputs_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(CallNew, "call-new")
  DECLARE_HYDROGEN_ACCESSOR(CallNew)

884
  void PrintDataTo(StringStream* stream) OVERRIDE;
885 886 887 888 889

  int arity() const { return hydrogen()->argument_count() - 1; }
};


890
class LCallNewArray FINAL : public LTemplateInstruction<1, 2, 0> {
891 892 893 894 895 896 897 898 899 900 901 902
 public:
  LCallNewArray(LOperand* context, LOperand* constructor) {
    inputs_[0] = context;
    inputs_[1] = constructor;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* constructor() { return inputs_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(CallNewArray, "call-new-array")
  DECLARE_HYDROGEN_ACCESSOR(CallNewArray)

903
  void PrintDataTo(StringStream* stream) OVERRIDE;
904 905 906 907 908

  int arity() const { return hydrogen()->argument_count() - 1; }
};


909
class LCallRuntime FINAL : public LTemplateInstruction<1, 1, 0> {
910 911 912 913 914 915 916 917 918 919
 public:
  explicit LCallRuntime(LOperand* context) {
    inputs_[0] = context;
  }

  LOperand* context() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(CallRuntime, "call-runtime")
  DECLARE_HYDROGEN_ACCESSOR(CallRuntime)

920
  bool ClobbersDoubleRegisters(Isolate* isolate) const OVERRIDE {
921 922 923 924 925 926 927 928 929
    return save_doubles() == kDontSaveFPRegs;
  }

  const Runtime::Function* function() const { return hydrogen()->function(); }
  int arity() const { return hydrogen()->argument_count(); }
  SaveFPRegsMode save_doubles() const { return hydrogen()->save_doubles(); }
};


930
class LCallStub FINAL : public LTemplateInstruction<1, 1, 0> {
931 932 933 934 935 936 937 938 939 940 941 942
 public:
  explicit LCallStub(LOperand* context) {
    inputs_[0] = context;
  }

  LOperand* context() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(CallStub, "call-stub")
  DECLARE_HYDROGEN_ACCESSOR(CallStub)
};


943
class LCheckInstanceType FINAL : public LTemplateInstruction<0, 1, 1> {
944 945 946 947 948 949 950 951 952 953 954 955 956 957
 public:
  explicit LCheckInstanceType(LOperand* value, LOperand* temp) {
    inputs_[0] = value;
    temps_[0] = temp;
  }

  LOperand* value() { return inputs_[0]; }
  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(CheckInstanceType, "check-instance-type")
  DECLARE_HYDROGEN_ACCESSOR(CheckInstanceType)
};


958
class LCheckMaps FINAL : public LTemplateInstruction<0, 1, 1> {
959
 public:
960
  explicit LCheckMaps(LOperand* value = NULL, LOperand* temp = NULL) {
961 962 963 964 965 966 967 968 969 970 971 972
    inputs_[0] = value;
    temps_[0] = temp;
  }

  LOperand* value() { return inputs_[0]; }
  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(CheckMaps, "check-maps")
  DECLARE_HYDROGEN_ACCESSOR(CheckMaps)
};


973
class LCheckNonSmi FINAL : public LTemplateInstruction<0, 1, 0> {
974 975 976 977 978 979 980 981 982 983 984 985
 public:
  explicit LCheckNonSmi(LOperand* value) {
    inputs_[0] = value;
  }

  LOperand* value() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(CheckNonSmi, "check-non-smi")
  DECLARE_HYDROGEN_ACCESSOR(CheckHeapObject)
};


986
class LCheckSmi FINAL : public LTemplateInstruction<1, 1, 0> {
987 988 989 990 991 992 993 994 995 996 997
 public:
  explicit LCheckSmi(LOperand* value) {
    inputs_[0] = value;
  }

  LOperand* value() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(CheckSmi, "check-smi")
};


998
class LCheckValue FINAL : public LTemplateInstruction<0, 1, 0> {
999
 public:
1000
  explicit LCheckValue(LOperand* value) {
1001 1002 1003 1004 1005 1006 1007 1008 1009 1010
    inputs_[0] = value;
  }

  LOperand* value() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(CheckValue, "check-value")
  DECLARE_HYDROGEN_ACCESSOR(CheckValue)
};


1011
class LClampDToUint8 FINAL : public LTemplateInstruction<1, 1, 0> {
1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022
 public:
  explicit LClampDToUint8(LOperand* unclamped) {
    inputs_[0] = unclamped;
  }

  LOperand* unclamped() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(ClampDToUint8, "clamp-d-to-uint8")
};


1023
class LClampIToUint8 FINAL : public LTemplateInstruction<1, 1, 0> {
1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034
 public:
  explicit LClampIToUint8(LOperand* unclamped) {
    inputs_[0] = unclamped;
  }

  LOperand* unclamped() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(ClampIToUint8, "clamp-i-to-uint8")
};


1035
class LClampTToUint8 FINAL : public LTemplateInstruction<1, 1, 1> {
1036
 public:
1037
  LClampTToUint8(LOperand* unclamped, LOperand* temp1) {
1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048
    inputs_[0] = unclamped;
    temps_[0] = temp1;
  }

  LOperand* unclamped() { return inputs_[0]; }
  LOperand* temp1() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(ClampTToUint8, "clamp-t-to-uint8")
};


1049
class LDoubleBits FINAL : public LTemplateInstruction<1, 1, 0> {
1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061
 public:
  explicit LDoubleBits(LOperand* value) {
    inputs_[0] = value;
  }

  LOperand* value() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(DoubleBits, "double-bits")
  DECLARE_HYDROGEN_ACCESSOR(DoubleBits)
};


1062
class LConstructDouble FINAL : public LTemplateInstruction<1, 2, 0> {
1063
 public:
1064
  LConstructDouble(LOperand* hi, LOperand* lo) {
1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075
    inputs_[0] = hi;
    inputs_[1] = lo;
  }

  LOperand* hi() { return inputs_[0]; }
  LOperand* lo() { return inputs_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(ConstructDouble, "construct-double")
};


1076
class LClassOfTestAndBranch FINAL : public LControlInstruction<1, 2> {
1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091
 public:
  LClassOfTestAndBranch(LOperand* value, LOperand* temp1, LOperand* temp2) {
    inputs_[0] = value;
    temps_[0] = temp1;
    temps_[1] = temp2;
  }

  LOperand* value() { return inputs_[0]; }
  LOperand* temp1() { return temps_[0]; }
  LOperand* temp2() { return temps_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(ClassOfTestAndBranch,
                               "class-of-test-and-branch")
  DECLARE_HYDROGEN_ACCESSOR(ClassOfTestAndBranch)

1092
  void PrintDataTo(StringStream* stream) OVERRIDE;
1093 1094 1095
};


1096
class LCmpHoleAndBranchD FINAL : public LControlInstruction<1, 1> {
1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110
 public:
  explicit LCmpHoleAndBranchD(LOperand* object, LOperand* temp) {
    inputs_[0] = object;
    temps_[0] = temp;
  }

  LOperand* object() { return inputs_[0]; }
  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(CmpHoleAndBranchD, "cmp-hole-and-branch-d")
  DECLARE_HYDROGEN_ACCESSOR(CompareHoleAndBranch)
};


1111
class LCmpHoleAndBranchT FINAL : public LControlInstruction<1, 0> {
1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123
 public:
  explicit LCmpHoleAndBranchT(LOperand* object) {
    inputs_[0] = object;
  }

  LOperand* object() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(CmpHoleAndBranchT, "cmp-hole-and-branch-t")
  DECLARE_HYDROGEN_ACCESSOR(CompareHoleAndBranch)
};


1124
class LCmpMapAndBranch FINAL : public LControlInstruction<1, 1> {
1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140
 public:
  LCmpMapAndBranch(LOperand* value, LOperand* temp) {
    inputs_[0] = value;
    temps_[0] = temp;
  }

  LOperand* value() { return inputs_[0]; }
  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(CmpMapAndBranch, "cmp-map-and-branch")
  DECLARE_HYDROGEN_ACCESSOR(CompareMap)

  Handle<Map> map() const { return hydrogen()->map().handle(); }
};


1141
class LCmpObjectEqAndBranch FINAL : public LControlInstruction<2, 0> {
1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155
 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")
  DECLARE_HYDROGEN_ACCESSOR(CompareObjectEqAndBranch)
};


1156
class LCmpT FINAL : public LTemplateInstruction<1, 3, 0> {
1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174
 public:
  LCmpT(LOperand* context, LOperand* left, LOperand* right) {
    inputs_[0] = context;
    inputs_[1] = left;
    inputs_[2] = right;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* left() { return inputs_[1]; }
  LOperand* right() { return inputs_[2]; }

  DECLARE_CONCRETE_INSTRUCTION(CmpT, "cmp-t")
  DECLARE_HYDROGEN_ACCESSOR(CompareGeneric)

  Token::Value op() const { return hydrogen()->token(); }
};


1175
class LCompareMinusZeroAndBranch FINAL : public LControlInstruction<1, 1> {
1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190
 public:
  LCompareMinusZeroAndBranch(LOperand* value, LOperand* temp) {
    inputs_[0] = value;
    temps_[0] = temp;
  }

  LOperand* value() { return inputs_[0]; }
  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(CompareMinusZeroAndBranch,
                               "cmp-minus-zero-and-branch")
  DECLARE_HYDROGEN_ACCESSOR(CompareMinusZeroAndBranch)
};


1191
class LCompareNumericAndBranch FINAL : public LControlInstruction<2, 0> {
1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209
 public:
  LCompareNumericAndBranch(LOperand* left, LOperand* right) {
    inputs_[0] = left;
    inputs_[1] = right;
  }

  LOperand* left() { return inputs_[0]; }
  LOperand* right() { return inputs_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(CompareNumericAndBranch,
                               "compare-numeric-and-branch")
  DECLARE_HYDROGEN_ACCESSOR(CompareNumericAndBranch)

  Token::Value op() const { return hydrogen()->token(); }
  bool is_double() const {
    return hydrogen()->representation().IsDouble();
  }

1210
  void PrintDataTo(StringStream* stream) OVERRIDE;
1211 1212 1213
};


1214
class LConstantD FINAL : public LTemplateInstruction<1, 0, 0> {
1215 1216 1217 1218 1219 1220 1221 1222
 public:
  DECLARE_CONCRETE_INSTRUCTION(ConstantD, "constant-d")
  DECLARE_HYDROGEN_ACCESSOR(Constant)

  double value() const { return hydrogen()->DoubleValue(); }
};


1223
class LConstantE FINAL : public LTemplateInstruction<1, 0, 0> {
1224 1225 1226 1227 1228 1229 1230 1231 1232 1233
 public:
  DECLARE_CONCRETE_INSTRUCTION(ConstantE, "constant-e")
  DECLARE_HYDROGEN_ACCESSOR(Constant)

  ExternalReference value() const {
    return hydrogen()->ExternalReferenceValue();
  }
};


1234
class LConstantI FINAL : public LTemplateInstruction<1, 0, 0> {
1235 1236 1237 1238 1239 1240 1241 1242
 public:
  DECLARE_CONCRETE_INSTRUCTION(ConstantI, "constant-i")
  DECLARE_HYDROGEN_ACCESSOR(Constant)

  int32_t value() const { return hydrogen()->Integer32Value(); }
};


1243
class LConstantS FINAL : public LTemplateInstruction<1, 0, 0> {
1244 1245 1246 1247 1248 1249 1250 1251
 public:
  DECLARE_CONCRETE_INSTRUCTION(ConstantS, "constant-s")
  DECLARE_HYDROGEN_ACCESSOR(Constant)

  Smi* value() const { return Smi::FromInt(hydrogen()->Integer32Value()); }
};


1252
class LConstantT FINAL : public LTemplateInstruction<1, 0, 0> {
1253 1254 1255 1256 1257 1258 1259 1260 1261 1262
 public:
  DECLARE_CONCRETE_INSTRUCTION(ConstantT, "constant-t")
  DECLARE_HYDROGEN_ACCESSOR(Constant)

  Handle<Object> value(Isolate* isolate) const {
    return hydrogen()->handle(isolate);
  }
};


1263
class LContext FINAL : public LTemplateInstruction<1, 0, 0> {
1264 1265 1266 1267 1268 1269
 public:
  DECLARE_CONCRETE_INSTRUCTION(Context, "context")
  DECLARE_HYDROGEN_ACCESSOR(Context)
};


1270
class LDateField FINAL : public LTemplateInstruction<1, 1, 0> {
1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286
 public:
  LDateField(LOperand* date, Smi* index) : index_(index) {
    inputs_[0] = date;
  }

  LOperand* date() { return inputs_[0]; }
  Smi* index() const { return index_; }

  DECLARE_CONCRETE_INSTRUCTION(DateField, "date-field")
  DECLARE_HYDROGEN_ACCESSOR(DateField)

 private:
  Smi* index_;
};


1287
class LDebugBreak FINAL : public LTemplateInstruction<0, 0, 0> {
1288 1289 1290 1291 1292
 public:
  DECLARE_CONCRETE_INSTRUCTION(DebugBreak, "break")
};


1293
class LDeclareGlobals FINAL : public LTemplateInstruction<0, 1, 0> {
1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305
 public:
  explicit LDeclareGlobals(LOperand* context) {
    inputs_[0] = context;
  }

  LOperand* context() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(DeclareGlobals, "declare-globals")
  DECLARE_HYDROGEN_ACCESSOR(DeclareGlobals)
};


1306
class LDeoptimize FINAL : public LTemplateInstruction<0, 0, 0> {
1307
 public:
1308
  bool IsControl() const OVERRIDE { return true; }
1309 1310 1311 1312 1313
  DECLARE_CONCRETE_INSTRUCTION(Deoptimize, "deoptimize")
  DECLARE_HYDROGEN_ACCESSOR(Deoptimize)
};


1314
class LDivByPowerOf2I FINAL : public LTemplateInstruction<1, 1, 0> {
1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331
 public:
  LDivByPowerOf2I(LOperand* dividend, int32_t divisor) {
    inputs_[0] = dividend;
    divisor_ = divisor;
  }

  LOperand* dividend() { return inputs_[0]; }
  int32_t divisor() const { return divisor_; }

  DECLARE_CONCRETE_INSTRUCTION(DivByPowerOf2I, "div-by-power-of-2-i")
  DECLARE_HYDROGEN_ACCESSOR(Div)

 private:
  int32_t divisor_;
};


1332
class LDivByConstI FINAL : public LTemplateInstruction<1, 1, 1> {
1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351
 public:
  LDivByConstI(LOperand* dividend, int32_t divisor, LOperand* temp) {
    inputs_[0] = dividend;
    divisor_ = divisor;
    temps_[0] = temp;
  }

  LOperand* dividend() { return inputs_[0]; }
  int32_t divisor() const { return divisor_; }
  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(DivByConstI, "div-by-const-i")
  DECLARE_HYDROGEN_ACCESSOR(Div)

 private:
  int32_t divisor_;
};


1352
class LDivI FINAL : public LTemplateInstruction<1, 2, 1> {
1353
 public:
1354 1355 1356
  LDivI(LOperand* dividend, LOperand* divisor, LOperand* temp) {
    inputs_[0] = dividend;
    inputs_[1] = divisor;
1357 1358 1359
    temps_[0] = temp;
  }

1360 1361
  LOperand* dividend() { return inputs_[0]; }
  LOperand* divisor() { return inputs_[1]; }
1362 1363 1364
  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(DivI, "div-i")
1365
  DECLARE_HYDROGEN_ACCESSOR(BinaryOperation)
1366 1367 1368
};


1369
class LDoubleToIntOrSmi FINAL : public LTemplateInstruction<1, 1, 0> {
1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383
 public:
  explicit LDoubleToIntOrSmi(LOperand* value) {
    inputs_[0] = value;
  }

  LOperand* value() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(DoubleToIntOrSmi, "double-to-int-or-smi")
  DECLARE_HYDROGEN_ACCESSOR(UnaryOperation)

  bool tag_result() { return hydrogen()->representation().IsSmi(); }
};


1384
class LForInCacheArray FINAL : public LTemplateInstruction<1, 1, 0> {
1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399
 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();
  }
};


1400
class LForInPrepareMap FINAL : public LTemplateInstruction<1, 2, 0> {
1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413
 public:
  LForInPrepareMap(LOperand* context, LOperand* object) {
    inputs_[0] = context;
    inputs_[1] = object;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* object() { return inputs_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(ForInPrepareMap, "for-in-prepare-map")
};


1414
class LGetCachedArrayIndex FINAL : public LTemplateInstruction<1, 1, 0> {
1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426
 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)
};


1427
class LHasCachedArrayIndexAndBranch FINAL
1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441
    : public LControlInstruction<1, 1> {
 public:
  LHasCachedArrayIndexAndBranch(LOperand* value, LOperand* temp) {
    inputs_[0] = value;
    temps_[0] = temp;
  }

  LOperand* value() { return inputs_[0]; }
  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(HasCachedArrayIndexAndBranch,
                               "has-cached-array-index-and-branch")
  DECLARE_HYDROGEN_ACCESSOR(HasCachedArrayIndexAndBranch)

1442
  void PrintDataTo(StringStream* stream) OVERRIDE;
1443 1444 1445
};


1446
class LHasInstanceTypeAndBranch FINAL : public LControlInstruction<1, 1> {
1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459
 public:
  LHasInstanceTypeAndBranch(LOperand* value, LOperand* temp) {
    inputs_[0] = value;
    temps_[0] = temp;
  }

  LOperand* value() { return inputs_[0]; }
  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(HasInstanceTypeAndBranch,
                               "has-instance-type-and-branch")
  DECLARE_HYDROGEN_ACCESSOR(HasInstanceTypeAndBranch)

1460
  void PrintDataTo(StringStream* stream) OVERRIDE;
1461 1462 1463
};


1464
class LInnerAllocatedObject FINAL : public LTemplateInstruction<1, 2, 0> {
1465 1466 1467 1468 1469 1470 1471 1472 1473
 public:
  LInnerAllocatedObject(LOperand* base_object, LOperand* offset) {
    inputs_[0] = base_object;
    inputs_[1] = offset;
  }

  LOperand* base_object() const { return inputs_[0]; }
  LOperand* offset() const { return inputs_[1]; }

1474
  void PrintDataTo(StringStream* stream) OVERRIDE;
1475 1476 1477 1478 1479

  DECLARE_CONCRETE_INSTRUCTION(InnerAllocatedObject, "inner-allocated-object")
};


1480
class LInstanceOf FINAL : public LTemplateInstruction<1, 3, 0> {
1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495
 public:
  LInstanceOf(LOperand* context, LOperand* left, LOperand* right) {
    inputs_[0] = context;
    inputs_[1] = left;
    inputs_[2] = right;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* left() { return inputs_[1]; }
  LOperand* right() { return inputs_[2]; }

  DECLARE_CONCRETE_INSTRUCTION(InstanceOf, "instance-of")
};


1496
class LInstanceOfKnownGlobal FINAL : public LTemplateInstruction<1, 2, 0> {
1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514
 public:
  LInstanceOfKnownGlobal(LOperand* context, LOperand* value) {
    inputs_[0] = context;
    inputs_[1] = value;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* value() { return inputs_[1]; }

  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(
1515
      LEnvironment* env) OVERRIDE {
1516 1517 1518 1519 1520 1521 1522 1523
    lazy_deopt_env_ = env;
  }

 private:
  LEnvironment* lazy_deopt_env_;
};


1524
class LInteger32ToDouble FINAL : public LTemplateInstruction<1, 1, 0> {
1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535
 public:
  explicit LInteger32ToDouble(LOperand* value) {
    inputs_[0] = value;
  }

  LOperand* value() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(Integer32ToDouble, "int32-to-double")
};


1536
class LCallWithDescriptor FINAL : public LTemplateResultInstruction<1> {
1537
 public:
1538
  LCallWithDescriptor(CallInterfaceDescriptor descriptor,
1539 1540
                      const ZoneList<LOperand*>& operands, Zone* zone)
      : descriptor_(descriptor),
1541 1542
        inputs_(descriptor.GetRegisterParameterCount() + 1, zone) {
    DCHECK(descriptor.GetRegisterParameterCount() + 1 == operands.length());
1543 1544 1545 1546 1547
    inputs_.AddAll(operands, zone);
  }

  LOperand* target() const { return inputs_[0]; }

1548
  CallInterfaceDescriptor descriptor() { return descriptor_; }
1549

1550 1551
  DECLARE_HYDROGEN_ACCESSOR(CallWithDescriptor)

1552 1553 1554
 private:
  DECLARE_CONCRETE_INSTRUCTION(CallWithDescriptor, "call-with-descriptor")

1555
  void PrintDataTo(StringStream* stream) OVERRIDE;
1556 1557 1558

  int arity() const { return hydrogen()->argument_count() - 1; }

1559
  CallInterfaceDescriptor descriptor_;
1560 1561 1562
  ZoneList<LOperand*> inputs_;

  // Iterator support.
1563 1564
  int InputCount() FINAL { return inputs_.length(); }
  LOperand* InputAt(int i) FINAL { return inputs_[i]; }
1565

1566 1567
  int TempCount() FINAL { return 0; }
  LOperand* TempAt(int i) FINAL { return NULL; }
1568 1569 1570
};


1571
class LInvokeFunction FINAL : public LTemplateInstruction<1, 2, 0> {
1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583
 public:
  LInvokeFunction(LOperand* context, LOperand* function) {
    inputs_[0] = context;
    inputs_[1] = function;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* function() { return inputs_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(InvokeFunction, "invoke-function")
  DECLARE_HYDROGEN_ACCESSOR(InvokeFunction)

1584
  void PrintDataTo(StringStream* stream) OVERRIDE;
1585 1586 1587 1588 1589

  int arity() const { return hydrogen()->argument_count() - 1; }
};


1590
class LIsConstructCallAndBranch FINAL : public LControlInstruction<0, 2> {
1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604
 public:
  LIsConstructCallAndBranch(LOperand* temp1, LOperand* temp2) {
    temps_[0] = temp1;
    temps_[1] = temp2;
  }

  LOperand* temp1() { return temps_[0]; }
  LOperand* temp2() { return temps_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(IsConstructCallAndBranch,
                               "is-construct-call-and-branch")
};


1605
class LIsObjectAndBranch FINAL : public LControlInstruction<1, 2> {
1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619
 public:
  LIsObjectAndBranch(LOperand* value, LOperand* temp1, LOperand* temp2) {
    inputs_[0] = value;
    temps_[0] = temp1;
    temps_[1] = temp2;
  }

  LOperand* value() { return inputs_[0]; }
  LOperand* temp1() { return temps_[0]; }
  LOperand* temp2() { return temps_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(IsObjectAndBranch, "is-object-and-branch")
  DECLARE_HYDROGEN_ACCESSOR(IsObjectAndBranch)

1620
  void PrintDataTo(StringStream* stream) OVERRIDE;
1621 1622 1623
};


1624
class LIsStringAndBranch FINAL : public LControlInstruction<1, 1> {
1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636
 public:
  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)

1637
  void PrintDataTo(StringStream* stream) OVERRIDE;
1638 1639 1640
};


1641
class LIsSmiAndBranch FINAL : public LControlInstruction<1, 0> {
1642 1643 1644 1645 1646 1647 1648 1649 1650 1651
 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)

1652
  void PrintDataTo(StringStream* stream) OVERRIDE;
1653 1654 1655
};


1656
class LIsUndetectableAndBranch FINAL : public LControlInstruction<1, 1> {
1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669
 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)

1670
  void PrintDataTo(StringStream* stream) OVERRIDE;
1671 1672 1673
};


1674
class LLoadContextSlot FINAL : public LTemplateInstruction<1, 1, 0> {
1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686
 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() const { return hydrogen()->slot_index(); }

1687
  void PrintDataTo(StringStream* stream) OVERRIDE;
1688 1689 1690
};


1691
class LLoadNamedField FINAL : public LTemplateInstruction<1, 1, 0> {
1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703
 public:
  explicit LLoadNamedField(LOperand* object) {
    inputs_[0] = object;
  }

  LOperand* object() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(LoadNamedField, "load-named-field")
  DECLARE_HYDROGEN_ACCESSOR(LoadNamedField)
};


1704
class LFunctionLiteral FINAL : public LTemplateInstruction<1, 1, 0> {
1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716
 public:
  explicit LFunctionLiteral(LOperand* context) {
    inputs_[0] = context;
  }

  LOperand* context() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(FunctionLiteral, "function-literal")
  DECLARE_HYDROGEN_ACCESSOR(FunctionLiteral)
};


1717
class LLoadFunctionPrototype FINAL : public LTemplateInstruction<1, 1, 1> {
1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731
 public:
  LLoadFunctionPrototype(LOperand* function, LOperand* temp) {
    inputs_[0] = function;
    temps_[0] = temp;
  }

  LOperand* function() { return inputs_[0]; }
  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(LoadFunctionPrototype, "load-function-prototype")
  DECLARE_HYDROGEN_ACCESSOR(LoadFunctionPrototype)
};


1732
class LLoadGlobalGeneric FINAL : public LTemplateInstruction<1, 2, 1> {
1733
 public:
1734 1735
  LLoadGlobalGeneric(LOperand* context, LOperand* global_object,
                     LOperand* vector) {
1736 1737
    inputs_[0] = context;
    inputs_[1] = global_object;
1738
    temps_[0] = vector;
1739 1740 1741 1742
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* global_object() { return inputs_[1]; }
1743
  LOperand* temp_vector() { return temps_[0]; }
1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774

  DECLARE_CONCRETE_INSTRUCTION(LoadGlobalGeneric, "load-global-generic")
  DECLARE_HYDROGEN_ACCESSOR(LoadGlobalGeneric)

  Handle<Object> name() const { return hydrogen()->name(); }
  bool for_typeof() const { return hydrogen()->for_typeof(); }
};


template<int T>
class LLoadKeyed : public LTemplateInstruction<1, 2, T> {
 public:
  LLoadKeyed(LOperand* elements, LOperand* key) {
    this->inputs_[0] = elements;
    this->inputs_[1] = key;
  }

  LOperand* elements() { return this->inputs_[0]; }
  LOperand* key() { return this->inputs_[1]; }
  ElementsKind elements_kind() const {
    return this->hydrogen()->elements_kind();
  }
  bool is_external() const {
    return this->hydrogen()->is_external();
  }
  bool is_fixed_typed_array() const {
    return hydrogen()->is_fixed_typed_array();
  }
  bool is_typed_elements() const {
    return is_external() || is_fixed_typed_array();
  }
1775 1776
  uint32_t base_offset() const {
    return this->hydrogen()->base_offset();
1777
  }
1778
  void PrintDataTo(StringStream* stream) OVERRIDE {
1779 1780 1781
    this->elements()->PrintTo(stream);
    stream->Add("[");
    this->key()->PrintTo(stream);
1782 1783
    if (this->base_offset() != 0) {
      stream->Add(" + %d]", this->base_offset());
1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831
    } else {
      stream->Add("]");
    }
  }

  DECLARE_HYDROGEN_ACCESSOR(LoadKeyed)
};


class LLoadKeyedExternal: public LLoadKeyed<1> {
 public:
  LLoadKeyedExternal(LOperand* elements, LOperand* key, LOperand* temp) :
      LLoadKeyed<1>(elements, key) {
    temps_[0] = temp;
  }

  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(LoadKeyedExternal, "load-keyed-external");
};


class LLoadKeyedFixed: public LLoadKeyed<1> {
 public:
  LLoadKeyedFixed(LOperand* elements, LOperand* key, LOperand* temp) :
      LLoadKeyed<1>(elements, key) {
    temps_[0] = temp;
  }

  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(LoadKeyedFixed, "load-keyed-fixed");
};


class LLoadKeyedFixedDouble: public LLoadKeyed<1> {
 public:
  LLoadKeyedFixedDouble(LOperand* elements, LOperand* key, LOperand* temp) :
      LLoadKeyed<1>(elements, key) {
    temps_[0] = temp;
  }

  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(LoadKeyedFixedDouble, "load-keyed-fixed-double");
};


1832
class LLoadKeyedGeneric FINAL : public LTemplateInstruction<1, 3, 1> {
1833
 public:
1834 1835
  LLoadKeyedGeneric(LOperand* context, LOperand* object, LOperand* key,
                    LOperand* vector) {
1836 1837 1838
    inputs_[0] = context;
    inputs_[1] = object;
    inputs_[2] = key;
1839
    temps_[0] = vector;
1840 1841 1842 1843 1844
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* object() { return inputs_[1]; }
  LOperand* key() { return inputs_[2]; }
1845
  LOperand* temp_vector() { return temps_[0]; }
1846 1847

  DECLARE_CONCRETE_INSTRUCTION(LoadKeyedGeneric, "load-keyed-generic")
1848
  DECLARE_HYDROGEN_ACCESSOR(LoadKeyedGeneric)
1849 1850 1851
};


1852
class LLoadNamedGeneric FINAL : public LTemplateInstruction<1, 2, 1> {
1853
 public:
1854
  LLoadNamedGeneric(LOperand* context, LOperand* object, LOperand* vector) {
1855 1856
    inputs_[0] = context;
    inputs_[1] = object;
1857
    temps_[0] = vector;
1858 1859 1860 1861
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* object() { return inputs_[1]; }
1862
  LOperand* temp_vector() { return temps_[0]; }
1863 1864 1865 1866 1867 1868 1869 1870

  DECLARE_CONCRETE_INSTRUCTION(LoadNamedGeneric, "load-named-generic")
  DECLARE_HYDROGEN_ACCESSOR(LoadNamedGeneric)

  Handle<Object> name() const { return hydrogen()->name(); }
};


1871
class LLoadRoot FINAL : public LTemplateInstruction<1, 0, 0> {
1872 1873 1874 1875 1876 1877 1878 1879
 public:
  DECLARE_CONCRETE_INSTRUCTION(LoadRoot, "load-root")
  DECLARE_HYDROGEN_ACCESSOR(LoadRoot)

  Heap::RootListIndex index() const { return hydrogen()->index(); }
};


1880
class LMapEnumLength FINAL : public LTemplateInstruction<1, 1, 0> {
1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901
 public:
  explicit LMapEnumLength(LOperand* value) {
    inputs_[0] = value;
  }

  LOperand* value() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(MapEnumLength, "map-enum-length")
};


template<int T>
class LUnaryMathOperation : public LTemplateInstruction<1, 1, T> {
 public:
  explicit LUnaryMathOperation(LOperand* value) {
    this->inputs_[0] = value;
  }

  LOperand* value() { return this->inputs_[0]; }
  BuiltinFunctionId op() const { return this->hydrogen()->op(); }

1902
  void PrintDataTo(StringStream* stream) OVERRIDE;
1903 1904 1905 1906 1907

  DECLARE_HYDROGEN_ACCESSOR(UnaryMathOperation)
};


1908
class LMathAbs FINAL : public LUnaryMathOperation<0> {
1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937
 public:
  explicit LMathAbs(LOperand* value) : LUnaryMathOperation<0>(value) {}

  DECLARE_CONCRETE_INSTRUCTION(MathAbs, "math-abs")
};


class LMathAbsTagged: public LTemplateInstruction<1, 2, 3> {
 public:
  LMathAbsTagged(LOperand* context, LOperand* value,
                 LOperand* temp1, LOperand* temp2, LOperand* temp3) {
    inputs_[0] = context;
    inputs_[1] = value;
    temps_[0] = temp1;
    temps_[1] = temp2;
    temps_[2] = temp3;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* value() { return inputs_[1]; }
  LOperand* temp1() { return temps_[0]; }
  LOperand* temp2() { return temps_[1]; }
  LOperand* temp3() { return temps_[2]; }

  DECLARE_CONCRETE_INSTRUCTION(MathAbsTagged, "math-abs-tagged")
  DECLARE_HYDROGEN_ACCESSOR(UnaryMathOperation)
};


1938
class LMathExp FINAL : public LUnaryMathOperation<4> {
1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961
 public:
  LMathExp(LOperand* value,
                LOperand* double_temp1,
                LOperand* temp1,
                LOperand* temp2,
                LOperand* temp3)
      : LUnaryMathOperation<4>(value) {
    temps_[0] = double_temp1;
    temps_[1] = temp1;
    temps_[2] = temp2;
    temps_[3] = temp3;
    ExternalReference::InitializeMathExpData();
  }

  LOperand* double_temp1() { return temps_[0]; }
  LOperand* temp1() { return temps_[1]; }
  LOperand* temp2() { return temps_[2]; }
  LOperand* temp3() { return temps_[3]; }

  DECLARE_CONCRETE_INSTRUCTION(MathExp, "math-exp")
};


1962
// Math.floor with a double result.
1963
class LMathFloorD FINAL : public LUnaryMathOperation<0> {
1964
 public:
1965 1966 1967 1968 1969 1970
  explicit LMathFloorD(LOperand* value) : LUnaryMathOperation<0>(value) { }
  DECLARE_CONCRETE_INSTRUCTION(MathFloorD, "math-floor-d")
};


// Math.floor with an integer result.
1971
class LMathFloorI FINAL : public LUnaryMathOperation<0> {
1972 1973 1974
 public:
  explicit LMathFloorI(LOperand* value) : LUnaryMathOperation<0>(value) { }
  DECLARE_CONCRETE_INSTRUCTION(MathFloorI, "math-floor-i")
1975 1976 1977
};


1978
class LFlooringDivByPowerOf2I FINAL : public LTemplateInstruction<1, 1, 0> {
1979
 public:
1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996
  LFlooringDivByPowerOf2I(LOperand* dividend, int32_t divisor) {
    inputs_[0] = dividend;
    divisor_ = divisor;
  }

  LOperand* dividend() { return inputs_[0]; }
  int32_t divisor() const { return divisor_; }

  DECLARE_CONCRETE_INSTRUCTION(FlooringDivByPowerOf2I,
                               "flooring-div-by-power-of-2-i")
  DECLARE_HYDROGEN_ACCESSOR(MathFloorOfDiv)

 private:
  int32_t divisor_;
};


1997
class LFlooringDivByConstI FINAL : public LTemplateInstruction<1, 1, 2> {
1998
 public:
1999
  LFlooringDivByConstI(LOperand* dividend, int32_t divisor, LOperand* temp) {
2000 2001
    inputs_[0] = dividend;
    divisor_ = divisor;
2002
    temps_[0] = temp;
2003 2004 2005 2006
  }

  LOperand* dividend() { return inputs_[0]; }
  int32_t divisor() const { return divisor_; }
2007
  LOperand* temp() { return temps_[0]; }
2008 2009 2010 2011 2012 2013 2014 2015 2016

  DECLARE_CONCRETE_INSTRUCTION(FlooringDivByConstI, "flooring-div-by-const-i")
  DECLARE_HYDROGEN_ACCESSOR(MathFloorOfDiv)

 private:
  int32_t divisor_;
};


2017
class LFlooringDivI FINAL : public LTemplateInstruction<1, 2, 1> {
2018 2019 2020 2021
 public:
  LFlooringDivI(LOperand* dividend, LOperand* divisor, LOperand* temp) {
    inputs_[0] = dividend;
    inputs_[1] = divisor;
2022 2023 2024
    temps_[0] = temp;
  }

2025 2026
  LOperand* dividend() { return inputs_[0]; }
  LOperand* divisor() { return inputs_[1]; }
2027 2028
  LOperand* temp() { return temps_[0]; }

2029
  DECLARE_CONCRETE_INSTRUCTION(FlooringDivI, "flooring-div-i")
2030 2031 2032 2033
  DECLARE_HYDROGEN_ACCESSOR(MathFloorOfDiv)
};


2034
class LMathLog FINAL : public LUnaryMathOperation<0> {
2035 2036 2037 2038 2039 2040
 public:
  explicit LMathLog(LOperand* value) : LUnaryMathOperation<0>(value) { }
  DECLARE_CONCRETE_INSTRUCTION(MathLog, "math-log")
};


2041
class LMathClz32 FINAL : public LUnaryMathOperation<0> {
2042 2043 2044 2045 2046 2047
 public:
  explicit LMathClz32(LOperand* value) : LUnaryMathOperation<0>(value) { }
  DECLARE_CONCRETE_INSTRUCTION(MathClz32, "math-clz32")
};


2048
class LMathMinMax FINAL : public LTemplateInstruction<1, 2, 0> {
2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062
 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, "math-min-max")
  DECLARE_HYDROGEN_ACCESSOR(MathMinMax)
};


2063
class LMathPowHalf FINAL : public LUnaryMathOperation<0> {
2064 2065 2066 2067 2068 2069
 public:
  explicit LMathPowHalf(LOperand* value) : LUnaryMathOperation<0>(value) { }
  DECLARE_CONCRETE_INSTRUCTION(MathPowHalf, "math-pow-half")
};


2070
// Math.round with an integer result.
2071
class LMathRoundD FINAL : public LUnaryMathOperation<0> {
2072 2073 2074 2075 2076 2077 2078 2079 2080 2081
 public:
  explicit LMathRoundD(LOperand* value)
      : LUnaryMathOperation<0>(value) {
  }

  DECLARE_CONCRETE_INSTRUCTION(MathRoundD, "math-round-d")
};


// Math.round with an integer result.
2082
class LMathRoundI FINAL : public LUnaryMathOperation<1> {
2083
 public:
2084
  LMathRoundI(LOperand* value, LOperand* temp1)
2085 2086 2087 2088 2089 2090
      : LUnaryMathOperation<1>(value) {
    temps_[0] = temp1;
  }

  LOperand* temp1() { return temps_[0]; }

2091
  DECLARE_CONCRETE_INSTRUCTION(MathRoundI, "math-round-i")
2092 2093 2094
};


2095
class LMathFround FINAL : public LUnaryMathOperation<0> {
2096 2097 2098 2099 2100 2101 2102
 public:
  explicit LMathFround(LOperand* value) : LUnaryMathOperation<0>(value) {}

  DECLARE_CONCRETE_INSTRUCTION(MathFround, "math-fround")
};


2103
class LMathSqrt FINAL : public LUnaryMathOperation<0> {
2104 2105 2106 2107 2108 2109
 public:
  explicit LMathSqrt(LOperand* value) : LUnaryMathOperation<0>(value) { }
  DECLARE_CONCRETE_INSTRUCTION(MathSqrt, "math-sqrt")
};


2110
class LModByPowerOf2I FINAL : public LTemplateInstruction<1, 1, 0> {
2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127
 public:
  LModByPowerOf2I(LOperand* dividend, int32_t divisor) {
    inputs_[0] = dividend;
    divisor_ = divisor;
  }

  LOperand* dividend() { return inputs_[0]; }
  int32_t divisor() const { return divisor_; }

  DECLARE_CONCRETE_INSTRUCTION(ModByPowerOf2I, "mod-by-power-of-2-i")
  DECLARE_HYDROGEN_ACCESSOR(Mod)

 private:
  int32_t divisor_;
};


2128
class LModByConstI FINAL : public LTemplateInstruction<1, 1, 1> {
2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147
 public:
  LModByConstI(LOperand* dividend, int32_t divisor, LOperand* temp) {
    inputs_[0] = dividend;
    divisor_ = divisor;
    temps_[0] = temp;
  }

  LOperand* dividend() { return inputs_[0]; }
  int32_t divisor() const { return divisor_; }
  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(ModByConstI, "mod-by-const-i")
  DECLARE_HYDROGEN_ACCESSOR(Mod)

 private:
  int32_t divisor_;
};


2148
class LModI FINAL : public LTemplateInstruction<1, 2, 0> {
2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162
 public:
  LModI(LOperand* left, LOperand* right) {
    inputs_[0] = left;
    inputs_[1] = right;
  }

  LOperand* left() { return inputs_[0]; }
  LOperand* right() { return inputs_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(ModI, "mod-i")
  DECLARE_HYDROGEN_ACCESSOR(Mod)
};


2163
class LMulConstIS FINAL : public LTemplateInstruction<1, 2, 0> {
2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177
 public:
  LMulConstIS(LOperand* left, LConstantOperand* right) {
    inputs_[0] = left;
    inputs_[1] = right;
  }

  LOperand* left() { return inputs_[0]; }
  LConstantOperand* right() { return LConstantOperand::cast(inputs_[1]); }

  DECLARE_CONCRETE_INSTRUCTION(MulConstIS, "mul-const-i-s")
  DECLARE_HYDROGEN_ACCESSOR(Mul)
};


2178
class LMulI FINAL : public LTemplateInstruction<1, 2, 0> {
2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192
 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)
};


2193
class LMulS FINAL : public LTemplateInstruction<1, 2, 0> {
2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207
 public:
  LMulS(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-s")
  DECLARE_HYDROGEN_ACCESSOR(Mul)
};


2208
class LNumberTagD FINAL : public LTemplateInstruction<1, 1, 2> {
2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224
 public:
  LNumberTagD(LOperand* value, LOperand* temp1, LOperand* temp2) {
    inputs_[0] = value;
    temps_[0] = temp1;
    temps_[1] = temp2;
  }

  LOperand* value() { return inputs_[0]; }
  LOperand* temp1() { return temps_[0]; }
  LOperand* temp2() { return temps_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(NumberTagD, "number-tag-d")
  DECLARE_HYDROGEN_ACCESSOR(Change)
};


2225
class LNumberTagU FINAL : public LTemplateInstruction<1, 1, 2> {
2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242
 public:
  explicit LNumberTagU(LOperand* value,
                       LOperand* temp1,
                       LOperand* temp2) {
    inputs_[0] = value;
    temps_[0] = temp1;
    temps_[1] = temp2;
  }

  LOperand* value() { return inputs_[0]; }
  LOperand* temp1() { return temps_[0]; }
  LOperand* temp2() { return temps_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(NumberTagU, "number-tag-u")
};


2243
class LNumberUntagD FINAL : public LTemplateInstruction<1, 1, 1> {
2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258
 public:
  LNumberUntagD(LOperand* value, LOperand* temp) {
    inputs_[0] = value;
    temps_[0] = temp;
  }

  LOperand* value() { return inputs_[0]; }

  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(NumberUntagD, "double-untag")
  DECLARE_HYDROGEN_ACCESSOR(Change)
};


2259
class LParameter FINAL : public LTemplateInstruction<1, 0, 0> {
2260
 public:
2261
  bool HasInterestingComment(LCodeGen* gen) const OVERRIDE { return false; }
2262 2263 2264 2265
  DECLARE_CONCRETE_INSTRUCTION(Parameter, "parameter")
};


2266
class LPower FINAL : public LTemplateInstruction<1, 2, 0> {
2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280
 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)
};


2281
class LPreparePushArguments FINAL : public LTemplateInstruction<0, 0, 0> {
2282
 public:
2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293
  explicit LPreparePushArguments(int argc) : argc_(argc) {}

  inline int argc() const { return argc_; }

  DECLARE_CONCRETE_INSTRUCTION(PreparePushArguments, "prepare-push-arguments")

 protected:
  int argc_;
};


2294
class LPushArguments FINAL : public LTemplateResultInstruction<0> {
2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311
 public:
  explicit LPushArguments(Zone* zone,
                          int capacity = kRecommendedMaxPushedArgs)
      : zone_(zone), inputs_(capacity, zone) {}

  LOperand* argument(int i) { return inputs_[i]; }
  int ArgumentCount() const { return inputs_.length(); }

  void AddArgument(LOperand* arg) { inputs_.Add(arg, zone_); }

  DECLARE_CONCRETE_INSTRUCTION(PushArguments, "push-arguments")

  // It is better to limit the number of arguments pushed simultaneously to
  // avoid pressure on the register allocator.
  static const int kRecommendedMaxPushedArgs = 4;
  bool ShouldSplitPush() const {
    return inputs_.length() >= kRecommendedMaxPushedArgs;
2312 2313
  }

2314 2315 2316
 protected:
  Zone* zone_;
  ZoneList<LOperand*> inputs_;
2317

2318 2319
 private:
  // Iterator support.
2320 2321
  int InputCount() FINAL { return inputs_.length(); }
  LOperand* InputAt(int i) FINAL { return inputs_[i]; }
2322

2323 2324
  int TempCount() FINAL { return 0; }
  LOperand* TempAt(int i) FINAL { return NULL; }
2325 2326 2327
};


2328
class LRegExpLiteral FINAL : public LTemplateInstruction<1, 1, 0> {
2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340
 public:
  explicit LRegExpLiteral(LOperand* context) {
    inputs_[0] = context;
  }

  LOperand* context() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(RegExpLiteral, "regexp-literal")
  DECLARE_HYDROGEN_ACCESSOR(RegExpLiteral)
};


2341
class LReturn FINAL : public LTemplateInstruction<0, 3, 0> {
2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355
 public:
  LReturn(LOperand* value, LOperand* context, LOperand* parameter_count) {
    inputs_[0] = value;
    inputs_[1] = context;
    inputs_[2] = parameter_count;
  }

  LOperand* value() { return inputs_[0]; }
  LOperand* parameter_count() { return inputs_[2]; }

  bool has_constant_parameter_count() {
    return parameter_count()->IsConstantOperand();
  }
  LConstantOperand* constant_parameter_count() {
2356
    DCHECK(has_constant_parameter_count());
2357 2358 2359 2360 2361 2362 2363
    return LConstantOperand::cast(parameter_count());
  }

  DECLARE_CONCRETE_INSTRUCTION(Return, "return")
};


2364
class LSeqStringGetChar FINAL : public LTemplateInstruction<1, 2, 1> {
2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382
 public:
  LSeqStringGetChar(LOperand* string,
                    LOperand* index,
                    LOperand* temp) {
    inputs_[0] = string;
    inputs_[1] = index;
    temps_[0] = temp;
  }

  LOperand* string() { return inputs_[0]; }
  LOperand* index() { return inputs_[1]; }
  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(SeqStringGetChar, "seq-string-get-char")
  DECLARE_HYDROGEN_ACCESSOR(SeqStringGetChar)
};


2383
class LSeqStringSetChar FINAL : public LTemplateInstruction<1, 4, 1> {
2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407
 public:
  LSeqStringSetChar(LOperand* context,
                    LOperand* string,
                    LOperand* index,
                    LOperand* value,
                    LOperand* temp) {
    inputs_[0] = context;
    inputs_[1] = string;
    inputs_[2] = index;
    inputs_[3] = value;
    temps_[0] = temp;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* string() { return inputs_[1]; }
  LOperand* index() { return inputs_[2]; }
  LOperand* value() { return inputs_[3]; }
  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(SeqStringSetChar, "seq-string-set-char")
  DECLARE_HYDROGEN_ACCESSOR(SeqStringSetChar)
};


2408
class LSmiTag FINAL : public LTemplateInstruction<1, 1, 0> {
2409 2410 2411 2412 2413 2414 2415 2416
 public:
  explicit LSmiTag(LOperand* value) {
    inputs_[0] = value;
  }

  LOperand* value() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(SmiTag, "smi-tag")
2417
  DECLARE_HYDROGEN_ACCESSOR(Change)
2418 2419 2420
};


2421
class LSmiUntag FINAL : public LTemplateInstruction<1, 1, 0> {
2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437
 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_;
};


2438
class LStackCheck FINAL : public LTemplateInstruction<0, 1, 0> {
2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479
 public:
  explicit LStackCheck(LOperand* context) {
    inputs_[0] = context;
  }

  LOperand* context() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(StackCheck, "stack-check")
  DECLARE_HYDROGEN_ACCESSOR(StackCheck)

  Label* done_label() { return &done_label_; }

 private:
  Label done_label_;
};


template<int T>
class LStoreKeyed : public LTemplateInstruction<0, 3, T> {
 public:
  LStoreKeyed(LOperand* elements, LOperand* key, LOperand* value) {
    this->inputs_[0] = elements;
    this->inputs_[1] = key;
    this->inputs_[2] = value;
  }

  bool is_external() const { return this->hydrogen()->is_external(); }
  bool is_fixed_typed_array() const {
    return hydrogen()->is_fixed_typed_array();
  }
  bool is_typed_elements() const {
    return is_external() || is_fixed_typed_array();
  }
  LOperand* elements() { return this->inputs_[0]; }
  LOperand* key() { return this->inputs_[1]; }
  LOperand* value() { return this->inputs_[2]; }
  ElementsKind elements_kind() const {
    return this->hydrogen()->elements_kind();
  }

  bool NeedsCanonicalization() {
2480 2481 2482 2483
    if (hydrogen()->value()->IsAdd() || hydrogen()->value()->IsSub() ||
        hydrogen()->value()->IsMul() || hydrogen()->value()->IsDiv()) {
      return false;
    }
2484 2485
    return this->hydrogen()->NeedsCanonicalization();
  }
2486
  uint32_t base_offset() const { return this->hydrogen()->base_offset(); }
2487

2488
  void PrintDataTo(StringStream* stream) OVERRIDE {
2489 2490 2491
    this->elements()->PrintTo(stream);
    stream->Add("[");
    this->key()->PrintTo(stream);
2492 2493
    if (this->base_offset() != 0) {
      stream->Add(" + %d] <-", this->base_offset());
2494 2495 2496 2497 2498
    } else {
      stream->Add("] <- ");
    }

    if (this->value() == NULL) {
2499
      DCHECK(hydrogen()->IsConstantHoleStore() &&
2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510
             hydrogen()->value()->representation().IsDouble());
      stream->Add("<the hole(nan)>");
    } else {
      this->value()->PrintTo(stream);
    }
  }

  DECLARE_HYDROGEN_ACCESSOR(StoreKeyed)
};


2511
class LStoreKeyedExternal FINAL : public LStoreKeyed<1> {
2512 2513 2514 2515 2516
 public:
  LStoreKeyedExternal(LOperand* elements, LOperand* key, LOperand* value,
                      LOperand* temp) :
      LStoreKeyed<1>(elements, key, value) {
    temps_[0] = temp;
2517
  }
2518 2519 2520 2521 2522 2523 2524

  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(StoreKeyedExternal, "store-keyed-external")
};


2525
class LStoreKeyedFixed FINAL : public LStoreKeyed<1> {
2526 2527 2528 2529 2530
 public:
  LStoreKeyedFixed(LOperand* elements, LOperand* key, LOperand* value,
                   LOperand* temp) :
      LStoreKeyed<1>(elements, key, value) {
    temps_[0] = temp;
2531
  }
2532 2533 2534 2535 2536 2537 2538

  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(StoreKeyedFixed, "store-keyed-fixed")
};


2539
class LStoreKeyedFixedDouble FINAL : public LStoreKeyed<1> {
2540 2541 2542 2543 2544
 public:
  LStoreKeyedFixedDouble(LOperand* elements, LOperand* key, LOperand* value,
                         LOperand* temp) :
      LStoreKeyed<1>(elements, key, value) {
    temps_[0] = temp;
2545
  }
2546 2547 2548 2549 2550 2551 2552 2553

  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(StoreKeyedFixedDouble,
                               "store-keyed-fixed-double")
};


2554
class LStoreKeyedGeneric FINAL : public LTemplateInstruction<0, 4, 0> {
2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573
 public:
  LStoreKeyedGeneric(LOperand* context,
                     LOperand* obj,
                     LOperand* key,
                     LOperand* value) {
    inputs_[0] = context;
    inputs_[1] = obj;
    inputs_[2] = key;
    inputs_[3] = value;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* object() { return inputs_[1]; }
  LOperand* key() { return inputs_[2]; }
  LOperand* value() { return inputs_[3]; }

  DECLARE_CONCRETE_INSTRUCTION(StoreKeyedGeneric, "store-keyed-generic")
  DECLARE_HYDROGEN_ACCESSOR(StoreKeyedGeneric)

2574
  void PrintDataTo(StringStream* stream) OVERRIDE;
2575

2576
  LanguageMode language_mode() { return hydrogen()->language_mode(); }
2577 2578 2579
};


2580
class LStoreNamedField FINAL : public LTemplateInstruction<0, 2, 2> {
2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597
 public:
  LStoreNamedField(LOperand* object, LOperand* value,
                   LOperand* temp0, LOperand* temp1) {
    inputs_[0] = object;
    inputs_[1] = value;
    temps_[0] = temp0;
    temps_[1] = temp1;
  }

  LOperand* object() { return inputs_[0]; }
  LOperand* value() { return inputs_[1]; }
  LOperand* temp0() { return temps_[0]; }
  LOperand* temp1() { return temps_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(StoreNamedField, "store-named-field")
  DECLARE_HYDROGEN_ACCESSOR(StoreNamedField)

2598
  void PrintDataTo(StringStream* stream) OVERRIDE;
2599 2600 2601 2602 2603 2604 2605

  Representation representation() const {
    return hydrogen()->field_representation();
  }
};


2606
class LStoreNamedGeneric FINAL: public LTemplateInstruction<0, 3, 0> {
2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620
 public:
  LStoreNamedGeneric(LOperand* context, LOperand* object, LOperand* value) {
    inputs_[0] = context;
    inputs_[1] = object;
    inputs_[2] = value;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* object() { return inputs_[1]; }
  LOperand* value() { return inputs_[2]; }

  DECLARE_CONCRETE_INSTRUCTION(StoreNamedGeneric, "store-named-generic")
  DECLARE_HYDROGEN_ACCESSOR(StoreNamedGeneric)

2621
  void PrintDataTo(StringStream* stream) OVERRIDE;
2622 2623

  Handle<Object> name() const { return hydrogen()->name(); }
2624
  LanguageMode language_mode() { return hydrogen()->language_mode(); }
2625 2626 2627
};


2628
class LStringAdd FINAL : public LTemplateInstruction<1, 3, 0> {
2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645
 public:
  LStringAdd(LOperand* context, LOperand* left, LOperand* right) {
    inputs_[0] = context;
    inputs_[1] = left;
    inputs_[2] = right;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* left() { return inputs_[1]; }
  LOperand* right() { return inputs_[2]; }

  DECLARE_CONCRETE_INSTRUCTION(StringAdd, "string-add")
  DECLARE_HYDROGEN_ACCESSOR(StringAdd)
};



2646
class LStringCharCodeAt FINAL : public LTemplateInstruction<1, 3, 0> {
2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662
 public:
  LStringCharCodeAt(LOperand* context, LOperand* string, LOperand* index) {
    inputs_[0] = context;
    inputs_[1] = string;
    inputs_[2] = index;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* string() { return inputs_[1]; }
  LOperand* index() { return inputs_[2]; }

  DECLARE_CONCRETE_INSTRUCTION(StringCharCodeAt, "string-char-code-at")
  DECLARE_HYDROGEN_ACCESSOR(StringCharCodeAt)
};


2663
class LStringCharFromCode FINAL : public LTemplateInstruction<1, 2, 0> {
2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 2677
 public:
  LStringCharFromCode(LOperand* context, LOperand* char_code) {
    inputs_[0] = context;
    inputs_[1] = char_code;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* char_code() { return inputs_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(StringCharFromCode, "string-char-from-code")
  DECLARE_HYDROGEN_ACCESSOR(StringCharFromCode)
};


2678
class LStringCompareAndBranch FINAL : public LControlInstruction<3, 0> {
2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695
 public:
  LStringCompareAndBranch(LOperand* context, LOperand* left, LOperand* right) {
    inputs_[0] = context;
    inputs_[1] = left;
    inputs_[2] = right;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* left() { return inputs_[1]; }
  LOperand* right() { return inputs_[2]; }

  DECLARE_CONCRETE_INSTRUCTION(StringCompareAndBranch,
                               "string-compare-and-branch")
  DECLARE_HYDROGEN_ACCESSOR(StringCompareAndBranch)

  Token::Value op() const { return hydrogen()->token(); }

2696
  void PrintDataTo(StringStream* stream) OVERRIDE;
2697 2698 2699 2700
};


// Truncating conversion from a tagged value to an int32.
2701
class LTaggedToI FINAL : public LTemplateInstruction<1, 1, 2> {
2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719
 public:
  explicit LTaggedToI(LOperand* value, LOperand* temp1, LOperand* temp2) {
    inputs_[0] = value;
    temps_[0] = temp1;
    temps_[1] = temp2;
  }

  LOperand* value() { return inputs_[0]; }
  LOperand* temp1() { return temps_[0]; }
  LOperand* temp2() { return temps_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(TaggedToI, "tagged-to-i")
  DECLARE_HYDROGEN_ACCESSOR(Change)

  bool truncating() { return hydrogen()->CanTruncateToInt32(); }
};


2720
class LShiftI FINAL : public LTemplateInstruction<1, 2, 0> {
2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740
 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_;
};


2741
class LShiftS FINAL : public LTemplateInstruction<1, 2, 0> {
2742
 public:
2743 2744
  LShiftS(Token::Value op, LOperand* left, LOperand* right, bool can_deopt)
      : op_(op), can_deopt_(can_deopt) {
2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761
    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(ShiftS, "shift-s")

 private:
  Token::Value op_;
  bool can_deopt_;
};


2762
class LStoreCodeEntry FINAL: public LTemplateInstruction<0, 2, 1> {
2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774
 public:
  LStoreCodeEntry(LOperand* function, LOperand* code_object,
                  LOperand* temp) {
    inputs_[0] = function;
    inputs_[1] = code_object;
    temps_[0] = temp;
  }

  LOperand* function() { return inputs_[0]; }
  LOperand* code_object() { return inputs_[1]; }
  LOperand* temp() { return temps_[0]; }

2775
  void PrintDataTo(StringStream* stream) OVERRIDE;
2776 2777 2778 2779 2780 2781

  DECLARE_CONCRETE_INSTRUCTION(StoreCodeEntry, "store-code-entry")
  DECLARE_HYDROGEN_ACCESSOR(StoreCodeEntry)
};


2782
class LStoreContextSlot FINAL : public LTemplateInstruction<0, 2, 1> {
2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798
 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(); }

2799
  void PrintDataTo(StringStream* stream) OVERRIDE;
2800 2801 2802
};


2803
class LSubI FINAL : public LTemplateInstruction<1, 2, 0> {
2804
 public:
2805 2806 2807 2808 2809 2810 2811 2812
  LSubI(LOperand* left, LOperand* right)
      : shift_(NO_SHIFT), shift_amount_(0)  {
    inputs_[0] = left;
    inputs_[1] = right;
  }

  LSubI(LOperand* left, LOperand* right, Shift shift, LOperand* shift_amount)
      : shift_(shift), shift_amount_(shift_amount)  {
2813 2814 2815 2816 2817 2818 2819
    inputs_[0] = left;
    inputs_[1] = right;
  }

  LOperand* left() { return inputs_[0]; }
  LOperand* right() { return inputs_[1]; }

2820 2821 2822
  Shift shift() const { return shift_; }
  LOperand* shift_amount() const { return shift_amount_; }

2823 2824
  DECLARE_CONCRETE_INSTRUCTION(SubI, "sub-i")
  DECLARE_HYDROGEN_ACCESSOR(Sub)
2825 2826 2827 2828

 protected:
  Shift shift_;
  LOperand* shift_amount_;
2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846
};


class LSubS: public LTemplateInstruction<1, 2, 0> {
 public:
  LSubS(LOperand* left, LOperand* right) {
    inputs_[0] = left;
    inputs_[1] = right;
  }

  LOperand* left() { return inputs_[0]; }
  LOperand* right() { return inputs_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(SubS, "sub-s")
  DECLARE_HYDROGEN_ACCESSOR(Sub)
};


2847
class LThisFunction FINAL : public LTemplateInstruction<1, 0, 0> {
2848 2849 2850 2851 2852 2853
 public:
  DECLARE_CONCRETE_INSTRUCTION(ThisFunction, "this-function")
  DECLARE_HYDROGEN_ACCESSOR(ThisFunction)
};


2854
class LToFastProperties FINAL : public LTemplateInstruction<1, 1, 0> {
2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866
 public:
  explicit LToFastProperties(LOperand* value) {
    inputs_[0] = value;
  }

  LOperand* value() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(ToFastProperties, "to-fast-properties")
  DECLARE_HYDROGEN_ACCESSOR(ToFastProperties)
};


2867
class LTransitionElementsKind FINAL : public LTemplateInstruction<0, 2, 2> {
2868 2869 2870 2871
 public:
  LTransitionElementsKind(LOperand* object,
                          LOperand* context,
                          LOperand* temp1,
2872
                          LOperand* temp2) {
2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887
    inputs_[0] = object;
    inputs_[1] = context;
    temps_[0] = temp1;
    temps_[1] = temp2;
  }

  LOperand* object() { return inputs_[0]; }
  LOperand* context() { return inputs_[1]; }
  LOperand* temp1() { return temps_[0]; }
  LOperand* temp2() { return temps_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(TransitionElementsKind,
                               "transition-elements-kind")
  DECLARE_HYDROGEN_ACCESSOR(TransitionElementsKind)

2888
  void PrintDataTo(StringStream* stream) OVERRIDE;
2889 2890 2891 2892 2893 2894 2895 2896 2897 2898

  Handle<Map> original_map() { return hydrogen()->original_map().handle(); }
  Handle<Map> transitioned_map() {
    return hydrogen()->transitioned_map().handle();
  }
  ElementsKind from_kind() const { return hydrogen()->from_kind(); }
  ElementsKind to_kind() const { return hydrogen()->to_kind(); }
};


2899
class LTrapAllocationMemento FINAL : public LTemplateInstruction<0, 1, 2> {
2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914
 public:
  LTrapAllocationMemento(LOperand* object, LOperand* temp1, LOperand* temp2) {
    inputs_[0] = object;
    temps_[0] = temp1;
    temps_[1] = temp2;
  }

  LOperand* object() { return inputs_[0]; }
  LOperand* temp1() { return temps_[0]; }
  LOperand* temp2() { return temps_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(TrapAllocationMemento, "trap-allocation-memento")
};


2915
class LTruncateDoubleToIntOrSmi FINAL
2916
    : public LTemplateInstruction<1, 1, 0> {
2917
 public:
2918
  explicit LTruncateDoubleToIntOrSmi(LOperand* value) {
2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931
    inputs_[0] = value;
  }

  LOperand* value() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(TruncateDoubleToIntOrSmi,
                               "truncate-double-to-int-or-smi")
  DECLARE_HYDROGEN_ACCESSOR(UnaryOperation)

  bool tag_result() { return hydrogen()->representation().IsSmi(); }
};


2932
class LTypeof FINAL : public LTemplateInstruction<1, 2, 0> {
2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945
 public:
  LTypeof(LOperand* context, LOperand* value) {
    inputs_[0] = context;
    inputs_[1] = value;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* value() { return inputs_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(Typeof, "typeof")
};


2946
class LTypeofIsAndBranch FINAL : public LControlInstruction<1, 2> {
2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962
 public:
  LTypeofIsAndBranch(LOperand* value, LOperand* temp1, LOperand* temp2) {
    inputs_[0] = value;
    temps_[0] = temp1;
    temps_[1] = temp2;
  }

  LOperand* value() { return inputs_[0]; }
  LOperand* temp1() { return temps_[0]; }
  LOperand* temp2() { return temps_[1]; }

  DECLARE_CONCRETE_INSTRUCTION(TypeofIsAndBranch, "typeof-is-and-branch")
  DECLARE_HYDROGEN_ACCESSOR(TypeofIsAndBranch)

  Handle<String> type_literal() const { return hydrogen()->type_literal(); }

2963
  void PrintDataTo(StringStream* stream) OVERRIDE;
2964 2965 2966
};


2967
class LUint32ToDouble FINAL : public LTemplateInstruction<1, 1, 0> {
2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978
 public:
  explicit LUint32ToDouble(LOperand* value) {
    inputs_[0] = value;
  }

  LOperand* value() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(Uint32ToDouble, "uint32-to-double")
};


2979
class LCheckMapValue FINAL : public LTemplateInstruction<0, 2, 1> {
2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994
 public:
  LCheckMapValue(LOperand* value, LOperand* map, LOperand* temp) {
    inputs_[0] = value;
    inputs_[1] = map;
    temps_[0] = temp;
  }

  LOperand* value() { return inputs_[0]; }
  LOperand* map() { return inputs_[1]; }
  LOperand* temp() { return temps_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(CheckMapValue, "check-map-value")
};


2995
class LLoadFieldByIndex FINAL : public LTemplateInstruction<1, 2, 0> {
2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008
 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")
};


3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037
class LStoreFrameContext: public LTemplateInstruction<0, 1, 0> {
 public:
  explicit LStoreFrameContext(LOperand* context) {
    inputs_[0] = context;
  }

  LOperand* context() { return inputs_[0]; }

  DECLARE_CONCRETE_INSTRUCTION(StoreFrameContext, "store-frame-context")
};


class LAllocateBlockContext: public LTemplateInstruction<1, 2, 0> {
 public:
  LAllocateBlockContext(LOperand* context, LOperand* function) {
    inputs_[0] = context;
    inputs_[1] = function;
  }

  LOperand* context() { return inputs_[0]; }
  LOperand* function() { return inputs_[1]; }

  Handle<ScopeInfo> scope_info() { return hydrogen()->scope_info(); }

  DECLARE_CONCRETE_INSTRUCTION(AllocateBlockContext, "allocate-block-context")
  DECLARE_HYDROGEN_ACCESSOR(AllocateBlockContext)
};


3038
class LWrapReceiver FINAL : public LTemplateInstruction<1, 2, 0> {
3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053
 public:
  LWrapReceiver(LOperand* receiver, LOperand* function) {
    inputs_[0] = receiver;
    inputs_[1] = function;
  }

  DECLARE_CONCRETE_INSTRUCTION(WrapReceiver, "wrap-receiver")
  DECLARE_HYDROGEN_ACCESSOR(WrapReceiver)

  LOperand* receiver() { return inputs_[0]; }
  LOperand* function() { return inputs_[1]; }
};


class LChunkBuilder;
3054
class LPlatformChunk FINAL : public LChunk {
3055 3056 3057 3058 3059 3060 3061 3062 3063
 public:
  LPlatformChunk(CompilationInfo* info, HGraph* graph)
      : LChunk(info, graph) { }

  int GetNextSpillIndex();
  LOperand* GetNextSpillSlot(RegisterKind kind);
};


3064
class LChunkBuilder FINAL : public LChunkBuilderBase {
3065 3066
 public:
  LChunkBuilder(CompilationInfo* info, HGraph* graph, LAllocator* allocator)
3067
      : LChunkBuilderBase(info, graph),
3068 3069
        current_instruction_(NULL),
        current_block_(NULL),
3070
        allocator_(allocator) {}
3071 3072 3073 3074 3075 3076 3077 3078 3079

  // 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

3080
  LInstruction* DoDivByPowerOf2I(HDiv* instr);
3081
  LInstruction* DoDivByConstI(HDiv* instr);
3082 3083
  LInstruction* DoDivI(HBinaryOperation* instr);
  LInstruction* DoModByPowerOf2I(HMod* instr);
3084
  LInstruction* DoModByConstI(HMod* instr);
3085 3086
  LInstruction* DoModI(HMod* instr);
  LInstruction* DoFlooringDivByPowerOf2I(HMathFloorOfDiv* instr);
3087
  LInstruction* DoFlooringDivByConstI(HMathFloorOfDiv* instr);
3088 3089
  LInstruction* DoFlooringDivI(HMathFloorOfDiv* instr);

3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113
  static bool HasMagicNumberForDivision(int32_t divisor);

 private:
  // Methods for getting operands for Use / Define / Temp.
  LUnallocated* ToUnallocated(Register reg);
  LUnallocated* ToUnallocated(DoubleRegister 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,
                                           DoubleRegister fixed_register);

  // A value that is guaranteed to be allocated to a register.
  // The operand created by UseRegister is guaranteed to be live until the end
  // of the instruction. This means that register allocator will not reuse its
  // register for any other operand inside instruction.
  MUST_USE_RESULT LOperand* UseRegister(HValue* value);

  // The operand created by UseRegisterAndClobber is guaranteed to be live until
  // the end of the end of the instruction, and it may also be used as a scratch
  // register by the instruction implementation.
  //
  // This behaves identically to ARM's UseTempRegister. However, it is renamed
3114 3115
  // to discourage its use in ARM64, since in most cases it is better to
  // allocate a temporary register for the Lithium instruction.
3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137
  MUST_USE_RESULT LOperand* UseRegisterAndClobber(HValue* value);

  // The operand created by UseRegisterAtStart is guaranteed to be live only at
  // instruction start. The 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* UseRegisterAtStart(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);

  // A constant operand.
  MUST_USE_RESULT LConstantOperand* UseConstant(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.
  virtual MUST_USE_RESULT LOperand* UseAny(HValue* value);

  // Temporary operand that must be in a register.
  MUST_USE_RESULT LUnallocated* TempRegister();

3138 3139 3140
  // Temporary operand that must be in a double register.
  MUST_USE_RESULT LUnallocated* TempDoubleRegister();

3141 3142
  MUST_USE_RESULT LOperand* FixedTemp(Register reg);

3143 3144 3145 3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173
  // Temporary operand that must be in a fixed double register.
  MUST_USE_RESULT LOperand* FixedTemp(DoubleRegister reg);

  // Methods for setting up define-use relationships.
  // Return the same instruction that they are passed.
  LInstruction* Define(LTemplateResultInstruction<1>* instr,
                       LUnallocated* result);
  LInstruction* DefineAsRegister(LTemplateResultInstruction<1>* instr);
  LInstruction* DefineAsSpilled(LTemplateResultInstruction<1>* instr,
                                int index);

  LInstruction* DefineSameAsFirst(LTemplateResultInstruction<1>* instr);
  LInstruction* DefineFixed(LTemplateResultInstruction<1>* instr,
                            Register reg);
  LInstruction* DefineFixedDouble(LTemplateResultInstruction<1>* instr,
                                  DoubleRegister reg);

  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* AssignPointerMap(LInstruction* instr);
  LInstruction* AssignEnvironment(LInstruction* instr);

  void VisitInstruction(HInstruction* current);
3174
  void AddInstruction(LInstruction* instr, HInstruction* current);
3175 3176
  void DoBasicBlock(HBasicBlock* block);

3177 3178 3179 3180 3181 3182 3183
  int JSShiftAmountFromHConstant(HValue* constant) {
    return HConstant::cast(constant)->Integer32Value() & 0x1f;
  }
  bool LikelyFitsImmField(HInstruction* instr, int imm) {
    if (instr->IsAdd() || instr->IsSub()) {
      return Assembler::IsImmAddSub(imm) || Assembler::IsImmAddSub(-imm);
    } else {
3184
      DCHECK(instr->IsBitwise());
3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209
      unsigned unused_n, unused_imm_s, unused_imm_r;
      return Assembler::IsImmLogical(imm, kWRegSizeInBits,
                                     &unused_n, &unused_imm_s, &unused_imm_r);
    }
  }

  // Indicates if a sequence of the form
  //   lsl x8, x9, #imm
  //   add x0, x1, x8
  // can be replaced with:
  //   add x0, x1, x9 LSL #imm
  // If this is not possible, the function returns NULL. Otherwise it returns a
  // pointer to the shift instruction that would be optimized away.
  HBitwiseBinaryOperation* CanTransformToShiftedOp(HValue* val,
                                                   HValue** left = NULL);
  // Checks if all uses of the shift operation can optimize it away.
  bool ShiftCanBeOptimizedAway(HBitwiseBinaryOperation* shift);
  // Attempts to merge the binary operation and an eventual previous shift
  // operation into a single operation. Returns the merged instruction on
  // success, and NULL otherwise.
  LInstruction* TryDoOpWithShiftedRightOperand(HBinaryOperation* op);
  LInstruction* DoShiftedBinaryOp(HBinaryOperation* instr,
                                  HValue* left,
                                  HBitwiseBinaryOperation* shift);

3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227
  LInstruction* DoShift(Token::Value op, HBitwiseBinaryOperation* instr);
  LInstruction* DoArithmeticD(Token::Value op,
                              HArithmeticBinaryOperation* instr);
  LInstruction* DoArithmeticT(Token::Value op,
                              HBinaryOperation* instr);

  HInstruction* current_instruction_;
  HBasicBlock* current_block_;
  LAllocator* allocator_;

  DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
};

#undef DECLARE_HYDROGEN_ACCESSOR
#undef DECLARE_CONCRETE_INSTRUCTION

} }  // namespace v8::internal

3228
#endif  // V8_ARM64_LITHIUM_ARM64_H_