A64: Add V8_FINAL and V8_OVERRIDE to Lithium instructions

src/a64/lithium-a64.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 179 matching lines @@
   V(TrapAllocationMemento)                      \
   V(TruncateDoubleToIntOrSmi)                   \
   V(Typeof)                                     \
   V(TypeofIsAndBranch)                          \
   V(Uint32ToDouble)                             \
   V(UnknownOSRValue)                            \
   V(ValueOf)                                    \
   V(WrapReceiver)
 
 
-#define DECLARE_CONCRETE_INSTRUCTION(type, mnemonic)              \
-  virtual Opcode opcode() const { return LInstruction::k##type; } \
-  virtual void CompileToNative(LCodeGen* generator);              \
-  virtual const char* Mnemonic() const { return mnemonic; }       \
-  static L##type* cast(LInstruction* instr) {                     \
-    ASSERT(instr->Is##type());                                    \
-    return reinterpret_cast<L##type*>(instr);                     \
+#define DECLARE_CONCRETE_INSTRUCTION(type, mnemonic)                        \
+  virtual Opcode opcode() const V8_FINAL V8_OVERRIDE {                      \
+    return LInstruction::k##type;                                           \
+  }                                                                         \
+  virtual void CompileToNative(LCodeGen* generator) V8_FINAL V8_OVERRIDE;   \
+  virtual const char* Mnemonic() const V8_FINAL V8_OVERRIDE {               \
+    return mnemonic;                                                        \
+  }                                                                         \
+  static L##type* cast(LInstruction* instr) {                               \
+    ASSERT(instr->Is##type());                                              \
+    return reinterpret_cast<L##type*>(instr);                               \
   }
 
 
 #define DECLARE_HYDROGEN_ACCESSOR(type)           \
   H##type* hydrogen() const {                     \
     return H##type::cast(this->hydrogen_value()); \
   }
 
 
-class LInstruction: public ZoneObject {
+class LInstruction : public ZoneObject {
  public:
   LInstruction()
       : environment_(NULL),
         hydrogen_value_(NULL),
         bit_field_(IsCallBits::encode(false)) {
     set_position(RelocInfo::kNoPosition);
   }
 
   virtual ~LInstruction() { }
 
@@ skipping 81 matching lines @@
   SetOncePointer<LPointerMap> pointer_map_;
   HValue* hydrogen_value_;
   int32_t bit_field_;
 };
 
 
 // R = number of result operands (0 or 1).
 // I = number of input operands.
 // T = number of temporary operands.
 template<int R, int I, int T>
-class LTemplateInstruction: public LInstruction {
+class LTemplateInstruction : public LInstruction {
  public:
   // Allow 0 or 1 output operands.
   STATIC_ASSERT(R == 0 || R == 1);
-  virtual bool HasResult() const { return (R != 0) && (result() != NULL); }
+  virtual bool HasResult() const V8_FINAL V8_OVERRIDE {
+    return (R != 0) && (result() != NULL);
+  }
   void set_result(LOperand* operand) { results_[0] = operand; }
   LOperand* result() const { return results_[0]; }
 
-  int InputCount() { return I; }
-  LOperand* InputAt(int i) { return inputs_[i]; }
-
-  int TempCount() { return T; }
-  LOperand* TempAt(int i) { return temps_[i]; }
-
  protected:
   EmbeddedContainer<LOperand*, R> results_;
   EmbeddedContainer<LOperand*, I> inputs_;
   EmbeddedContainer<LOperand*, T> temps_;
+
+ private:
+  virtual int InputCount() V8_FINAL V8_OVERRIDE { return I; }
+  virtual LOperand* InputAt(int i) V8_FINAL V8_OVERRIDE { return inputs_[i]; }
+
+  virtual int TempCount() V8_FINAL V8_OVERRIDE { return T; }
+  virtual LOperand* TempAt(int i) V8_FINAL V8_OVERRIDE { return temps_[i]; }
 };
 
 
-class LUnknownOSRValue: public LTemplateInstruction<1, 0, 0> {
+class LUnknownOSRValue V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
-  virtual bool HasInterestingComment(LCodeGen* gen) const { return false; }
+  virtual bool HasInterestingComment(LCodeGen* gen) const V8_OVERRIDE {
+    return false;
+  }
   DECLARE_CONCRETE_INSTRUCTION(UnknownOSRValue, "unknown-osr-value")
 };
 
 
 template<int I, int T>
-class LControlInstruction: public LTemplateInstruction<0, I, T> {
+class LControlInstruction : public LTemplateInstruction<0, I, T> {
  public:
   LControlInstruction() : false_label_(NULL), true_label_(NULL) { }
 
-  virtual bool IsControl() const { return true; }
+  virtual bool IsControl() const V8_FINAL V8_OVERRIDE { return true; }
 
   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());
@@ skipping 18 matching lines @@
   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> {
+class LGap : public LTemplateInstruction<0, 0, 0> {
  public:
   explicit LGap(HBasicBlock* block)
       : block_(block) {
     parallel_moves_[BEFORE] = NULL;
     parallel_moves_[START] = NULL;
     parallel_moves_[END] = NULL;
     parallel_moves_[AFTER] = NULL;
   }
 
   // Can't use the DECLARE-macro here because of sub-classes.
-  virtual bool IsGap() const { return true; }
-  virtual void PrintDataTo(StringStream* stream);
+  virtual bool IsGap() const V8_OVERRIDE { return true; }
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
   static LGap* cast(LInstruction* instr) {
     ASSERT(instr->IsGap());
     return reinterpret_cast<LGap*>(instr);
   }
 
   bool IsRedundant() const;
 
   HBasicBlock* block() const { return block_; }
 
   enum InnerPosition {
@@ skipping 15 matching lines @@
   LParallelMove* GetParallelMove(InnerPosition pos)  {
     return parallel_moves_[pos];
   }
 
  private:
   LParallelMove* parallel_moves_[LAST_INNER_POSITION + 1];
   HBasicBlock* block_;
 };
 
 
-class LInstanceSize: public LTemplateInstruction<1, 1, 0> {
+class LInstanceSize V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LInstanceSize(LOperand* object) {
     inputs_[0] = object;
   }
 
   LOperand* object() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(InstanceSize, "instance-size")
   DECLARE_HYDROGEN_ACCESSOR(InstanceSize)
 };
 
 
-class LInstructionGap: public LGap {
+class LInstructionGap V8_FINAL : public LGap {
  public:
   explicit LInstructionGap(HBasicBlock* block) : LGap(block) { }
 
-  virtual bool HasInterestingComment(LCodeGen* gen) const {
+  virtual bool HasInterestingComment(LCodeGen* gen) const V8_OVERRIDE {
     return !IsRedundant();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(InstructionGap, "gap")
 };
 
 
-class LDrop: public LTemplateInstruction<0, 0, 0> {
+class LDrop V8_FINAL : public LTemplateInstruction<0, 0, 0> {
  public:
   explicit LDrop(int count) : count_(count) { }
 
   int count() const { return count_; }
 
   DECLARE_CONCRETE_INSTRUCTION(Drop, "drop")
 
  private:
   int count_;
 };
 
 
-class LDummyUse: public LTemplateInstruction<1, 1, 0> {
+class LDummyUse V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LDummyUse(LOperand* value) {
     inputs_[0] = value;
   }
   DECLARE_CONCRETE_INSTRUCTION(DummyUse, "dummy-use")
 };
 
 
-class LGoto: public LTemplateInstruction<0, 0, 0> {
+class LGoto V8_FINAL : public LTemplateInstruction<0, 0, 0> {
  public:
   explicit LGoto(int block_id) : block_id_(block_id) { }
 
-  virtual bool HasInterestingComment(LCodeGen* gen) const;
+  virtual bool HasInterestingComment(LCodeGen* gen) const V8_OVERRIDE;
   DECLARE_CONCRETE_INSTRUCTION(Goto, "goto")
-  virtual void PrintDataTo(StringStream* stream);
-  virtual bool IsControl() const { return true; }
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
+  virtual bool IsControl() const V8_OVERRIDE { return true; }
 
   int block_id() const { return block_id_; }
 
  private:
   int block_id_;
 };
 
 
-class LLazyBailout: public LTemplateInstruction<0, 0, 0> {
+class LLazyBailout V8_FINAL : public LTemplateInstruction<0, 0, 0> {
  public:
   LLazyBailout() : gap_instructions_size_(0) { }
 
   DECLARE_CONCRETE_INSTRUCTION(LazyBailout, "lazy-bailout")
 
   void set_gap_instructions_size(int gap_instructions_size) {
     gap_instructions_size_ = gap_instructions_size;
   }
   int gap_instructions_size() { return gap_instructions_size_; }
 
  private:
   int gap_instructions_size_;
 };
 
 
-class LLabel: public LGap {
+class LLabel V8_FINAL : public LGap {
  public:
   explicit LLabel(HBasicBlock* block)
       : LGap(block), replacement_(NULL) { }
 
-  virtual bool HasInterestingComment(LCodeGen* gen) const { return false; }
+  virtual bool HasInterestingComment(LCodeGen* gen) const V8_OVERRIDE {
+    return false;
+  }
   DECLARE_CONCRETE_INSTRUCTION(Label, "label")
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   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_;
 };
 
 
-class LOsrEntry: public LTemplateInstruction<0, 0, 0> {
+class LOsrEntry V8_FINAL : public LTemplateInstruction<0, 0, 0> {
  public:
   LOsrEntry() {}
 
-  virtual bool HasInterestingComment(LCodeGen* gen) const { return false; }
+  virtual bool HasInterestingComment(LCodeGen* gen) const V8_OVERRIDE {
+    return false;
+  }
   DECLARE_CONCRETE_INSTRUCTION(OsrEntry, "osr-entry")
 };
 
 
-class LOuterContext: public LTemplateInstruction<1, 1, 0> {
+class LOuterContext V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LOuterContext(LOperand* context) {
     inputs_[0] = context;
   }
 
   LOperand* context() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(OuterContext, "outer-context")
 };
 
 
-class LAccessArgumentsAt: public LTemplateInstruction<1, 3, 1> {
+class LAccessArgumentsAt V8_FINAL : public LTemplateInstruction<1, 3, 1> {
  public:
   LAccessArgumentsAt(LOperand* arguments,
                      LOperand* length,
                      LOperand* index,
                      LOperand* temp) {
     inputs_[0] = arguments;
     inputs_[1] = length;
     inputs_[2] = index;
     temps_[0] = temp;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(AccessArgumentsAt, "access-arguments-at")
 
   LOperand* arguments() { return inputs_[0]; }
   LOperand* length() { return inputs_[1]; }
   LOperand* index() { return inputs_[2]; }
   LOperand* temp() { return temps_[0]; }
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 };
 
 
-class LAddI: public LTemplateInstruction<1, 2, 0> {
+class LAddI V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
   LAddI(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(AddI, "add-i")
   DECLARE_HYDROGEN_ACCESSOR(Add)
 };
 
 
-class LAddS: public LTemplateInstruction<1, 2, 0> {
+class LAddS V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  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)
 };
 
 
-class LAllocate: public LTemplateInstruction<1, 1, 2> {
+class LAllocate V8_FINAL : public LTemplateInstruction<1, 1, 2> {
  public:
   // TODO(jbramley): On ia32, this takes a context, and it is used by the
   // deferred code. On ARM, an LOperand is allocated for another input, but it
   // is never used, and the deferred code doesn't need the context. Why?
   LAllocate(LOperand* size, LOperand* temp1, LOperand* temp2) {
     inputs_[0] = size;
     temps_[0] = temp1;
     temps_[1] = temp2;
   }
 
   LOperand* size() { return inputs_[0]; }
   LOperand* temp1() { return temps_[0]; }
   LOperand* temp2() { return temps_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(Allocate, "allocate")
   DECLARE_HYDROGEN_ACCESSOR(Allocate)
 };
 
 
-class LApplyArguments: public LTemplateInstruction<1, 4, 0> {
+class LApplyArguments V8_FINAL : public LTemplateInstruction<1, 4, 0> {
  public:
   LApplyArguments(LOperand* function,
                   LOperand* receiver,
                   LOperand* length,
                   LOperand* elements) {
     inputs_[0] = function;
     inputs_[1] = receiver;
     inputs_[2] = length;
     inputs_[3] = elements;
   }
 
   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]; }
 };
 
 
-class LArgumentsElements: public LTemplateInstruction<1, 0, 1> {
+class LArgumentsElements V8_FINAL : public LTemplateInstruction<1, 0, 1> {
  public:
   explicit LArgumentsElements(LOperand* temp) {
     temps_[0] = temp;
   }
 
   LOperand* temp() { return temps_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(ArgumentsElements, "arguments-elements")
   DECLARE_HYDROGEN_ACCESSOR(ArgumentsElements)
 };
 
 
-class LArgumentsLength: public LTemplateInstruction<1, 1, 0> {
+class LArgumentsLength V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LArgumentsLength(LOperand* elements) {
     inputs_[0] = elements;
   }
 
   LOperand* elements() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(ArgumentsLength, "arguments-length")
 };
 
 
-class LArithmeticD: public LTemplateInstruction<1, 2, 0> {
+class LArithmeticD V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
   LArithmeticD(Token::Value op, LOperand* left, LOperand* right)
       : op_(op) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   Token::Value op() const { return op_; }
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
 
-  virtual Opcode opcode() const { return LInstruction::kArithmeticD; }
-  virtual void CompileToNative(LCodeGen* generator);
-  virtual const char* Mnemonic() const;
+  virtual Opcode opcode() const V8_OVERRIDE {
+    return LInstruction::kArithmeticD;
+  }
+  virtual void CompileToNative(LCodeGen* generator) V8_OVERRIDE;
+  virtual const char* Mnemonic() const V8_OVERRIDE;
 
  private:
   Token::Value op_;
 };
 
 
-class LArithmeticT: public LTemplateInstruction<1, 2, 0> {
+class LArithmeticT V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
   LArithmeticT(Token::Value op, LOperand* left, LOperand* right)
       : op_(op) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
   Token::Value op() const { return op_; }
 
-  virtual Opcode opcode() const { return LInstruction::kArithmeticT; }
-  virtual void CompileToNative(LCodeGen* generator);
-  virtual const char* Mnemonic() const;
+  virtual Opcode opcode() const V8_OVERRIDE {
+    return LInstruction::kArithmeticT;
+  }
+  virtual void CompileToNative(LCodeGen* generator) V8_OVERRIDE;
+  virtual const char* Mnemonic() const V8_OVERRIDE;
 
  private:
   Token::Value op_;
 };
 
 
-class LBoundsCheck: public LTemplateInstruction<0, 2, 0> {
+class LBoundsCheck V8_FINAL : public LTemplateInstruction<0, 2, 0> {
  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)
 };
 
 
-class LBitI: public LTemplateInstruction<1, 2, 0> {
+class LBitI V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
   LBitI(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
 
   Token::Value op() const { return hydrogen()->op(); }
 
   DECLARE_CONCRETE_INSTRUCTION(BitI, "bit-i")
   DECLARE_HYDROGEN_ACCESSOR(Bitwise)
 };
 
 
-class LBitS: public LTemplateInstruction<1, 2, 0> {
+class LBitS V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  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)
 };
 
 
-class LBranch: public LControlInstruction<1, 2> {
+class LBranch V8_FINAL : public LControlInstruction<1, 2> {
  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)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 };
 
 
-class LCallConstantFunction: public LTemplateInstruction<1, 0, 0> {
+class LCallConstantFunction V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(CallConstantFunction, "call-constant-function")
   DECLARE_HYDROGEN_ACCESSOR(CallConstantFunction)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   Handle<JSFunction> function() { return hydrogen()->function(); }
   int arity() const { return hydrogen()->argument_count() - 1; }
 };
 
 
-class LCallFunction: public LTemplateInstruction<1, 1, 0> {
+class LCallFunction V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LCallFunction(LOperand* function) {
     inputs_[0] = function;
   }
 
   LOperand* function() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(CallFunction, "call-function")
   DECLARE_HYDROGEN_ACCESSOR(CallFunction)
 
   int arity() const { return hydrogen()->argument_count() - 1; }
 };
 
 
-class LCallKnownGlobal: public LTemplateInstruction<1, 0, 0> {
+class LCallKnownGlobal V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(CallKnownGlobal, "call-known-global")
   DECLARE_HYDROGEN_ACCESSOR(CallKnownGlobal)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   int arity() const { return hydrogen()->argument_count() - 1; }
 };
 
 
-class LCallGlobal: public LTemplateInstruction<1, 0, 0> {
+class LCallGlobal V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(CallGlobal, "call-global")
   DECLARE_HYDROGEN_ACCESSOR(CallGlobal)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   Handle<String> name() const { return hydrogen()->name(); }
   int arity() const { return hydrogen()->argument_count() - 1; }
 };
 
 
-class LCallKeyed: public LTemplateInstruction<1, 1, 0> {
+class LCallKeyed V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LCallKeyed(LOperand* key) {
     inputs_[0] = key;
   }
 
   LOperand* key() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(CallKeyed, "call-keyed")
   DECLARE_HYDROGEN_ACCESSOR(CallKeyed)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   int arity() const { return hydrogen()->argument_count() - 1; }
 };
 
 
-class LCallNamed: public LTemplateInstruction<1, 0, 0> {
+class LCallNamed V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(CallNamed, "call-named")
   DECLARE_HYDROGEN_ACCESSOR(CallNamed)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   Handle<String> name() const { return hydrogen()->name(); }
   int arity() const { return hydrogen()->argument_count() - 1; }
 };
 
 
-class LCallNew: public LTemplateInstruction<1, 1, 0> {
+class LCallNew V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LCallNew(LOperand* constructor) {
     inputs_[0] = constructor;
   }
 
   LOperand* constructor() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(CallNew, "call-new")
   DECLARE_HYDROGEN_ACCESSOR(CallNew)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   int arity() const { return hydrogen()->argument_count() - 1; }
 };
 
 
-class LCallNewArray: public LTemplateInstruction<1, 1, 0> {
+class LCallNewArray V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LCallNewArray(LOperand* constructor) {
     inputs_[0] = constructor;
   }
 
   LOperand* constructor() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(CallNewArray, "call-new-array")
   DECLARE_HYDROGEN_ACCESSOR(CallNewArray)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   int arity() const { return hydrogen()->argument_count() - 1; }
 };
 
 
-class LCallRuntime: public LTemplateInstruction<1, 0, 0> {
+class LCallRuntime V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(CallRuntime, "call-runtime")
   DECLARE_HYDROGEN_ACCESSOR(CallRuntime)
 
   const Runtime::Function* function() const { return hydrogen()->function(); }
   int arity() const { return hydrogen()->argument_count(); }
 };
 
 
-class LCallStub: public LTemplateInstruction<1, 0, 0> {
+class LCallStub V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(CallStub, "call-stub")
   DECLARE_HYDROGEN_ACCESSOR(CallStub)
 
   TranscendentalCache::Type transcendental_type() {
     return hydrogen()->transcendental_type();
   }
 };
 
 
-class LCheckInstanceType: public LTemplateInstruction<0, 1, 1> {
+class LCheckInstanceType V8_FINAL : public LTemplateInstruction<0, 1, 1> {
  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)
 };
 
 
-class LCheckMaps: public LTemplateInstruction<0, 1, 1> {
+class LCheckMaps V8_FINAL : public LTemplateInstruction<0, 1, 1> {
  public:
   explicit LCheckMaps(LOperand* value, LOperand* temp = NULL) {
     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)
 };
 
 
-class LCheckNonSmi: public LTemplateInstruction<0, 1, 0> {
+class LCheckNonSmi V8_FINAL : public LTemplateInstruction<0, 1, 0> {
  public:
   explicit LCheckNonSmi(LOperand* value) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(CheckNonSmi, "check-non-smi")
   DECLARE_HYDROGEN_ACCESSOR(CheckHeapObject)
 };
 
 
-class LCheckSmi: public LTemplateInstruction<1, 1, 0> {
+class LCheckSmi V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LCheckSmi(LOperand* value) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(CheckSmi, "check-smi")
 };
 
 
-class LCheckValue: public LTemplateInstruction<0, 1, 1> {
+class LCheckValue V8_FINAL : public LTemplateInstruction<0, 1, 1> {
  public:
   LCheckValue(LOperand* value, LOperand* temp) {
     inputs_[0] = value;
     temps_[0] = temp;
   }
 
   LOperand* value() { return inputs_[0]; }
   LOperand* temp() { return temps_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(CheckValue, "check-value")
   DECLARE_HYDROGEN_ACCESSOR(CheckValue)
 };
 
 
-class LClampDToUint8: public LTemplateInstruction<1, 1, 0> {
+class LClampDToUint8 V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LClampDToUint8(LOperand* unclamped) {
     inputs_[0] = unclamped;
   }
 
   LOperand* unclamped() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(ClampDToUint8, "clamp-d-to-uint8")
 };
 
 
-class LClampIToUint8: public LTemplateInstruction<1, 1, 0> {
+class LClampIToUint8 V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LClampIToUint8(LOperand* unclamped) {
     inputs_[0] = unclamped;
   }
 
   LOperand* unclamped() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(ClampIToUint8, "clamp-i-to-uint8")
 };
 
 
-class LClampTToUint8: public LTemplateInstruction<1, 1, 2> {
+class LClampTToUint8 V8_FINAL : public LTemplateInstruction<1, 1, 2> {
  public:
   LClampTToUint8(LOperand* unclamped, LOperand* temp1, LOperand* temp2) {
     inputs_[0] = unclamped;
     temps_[0] = temp1;
     temps_[1] = temp2;
   }
 
   LOperand* unclamped() { return inputs_[0]; }
   LOperand* temp1() { return temps_[0]; }
   LOperand* temp2() { return temps_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(ClampTToUint8, "clamp-t-to-uint8")
 };
 
 
-class LClassOfTestAndBranch: public LControlInstruction<1, 2> {
+class LClassOfTestAndBranch V8_FINAL : public LControlInstruction<1, 2> {
  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)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 };
 
 
-class LCmpHoleAndBranchD: public LControlInstruction<1, 1> {
+class LCmpHoleAndBranchD V8_FINAL : public LControlInstruction<1, 1> {
  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)
 };
 
 
-class LCmpHoleAndBranchT: public LControlInstruction<1, 0> {
+class LCmpHoleAndBranchT V8_FINAL : public LControlInstruction<1, 0> {
  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)
 };
 
 
-class LCmpMapAndBranch: public LControlInstruction<1, 1> {
+class LCmpMapAndBranch V8_FINAL : public LControlInstruction<1, 1> {
  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(); }
 };
 
 
-class LCmpObjectEqAndBranch: public LControlInstruction<2, 0> {
+class LCmpObjectEqAndBranch V8_FINAL : public LControlInstruction<2, 0> {
  public:
   LCmpObjectEqAndBranch(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(CmpObjectEqAndBranch, "cmp-object-eq-and-branch")
   DECLARE_HYDROGEN_ACCESSOR(CompareObjectEqAndBranch)
 };
 
 
-class LCmpT: public LTemplateInstruction<1, 2, 0> {
+class LCmpT V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
   LCmpT(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(CmpT, "cmp-t")
   DECLARE_HYDROGEN_ACCESSOR(CompareGeneric)
 
   Token::Value op() const { return hydrogen()->token(); }
 };
 
 
-class LCompareNumericAndBranch: public LControlInstruction<2, 0> {
+class LCompareNumericAndBranch V8_FINAL : public LControlInstruction<2, 0> {
  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();
   }
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 };
 
 
-class LConstantD: public LTemplateInstruction<1, 0, 0> {
+class LConstantD V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(ConstantD, "constant-d")
   DECLARE_HYDROGEN_ACCESSOR(Constant)
 
   double value() const { return hydrogen()->DoubleValue(); }
 };
 
 
-class LConstantE: public LTemplateInstruction<1, 0, 0> {
+class LConstantE V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(ConstantE, "constant-e")
   DECLARE_HYDROGEN_ACCESSOR(Constant)
 
   ExternalReference value() const {
     return hydrogen()->ExternalReferenceValue();
   }
 };
 
 
-class LConstantI: public LTemplateInstruction<1, 0, 0> {
+class LConstantI V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(ConstantI, "constant-i")
   DECLARE_HYDROGEN_ACCESSOR(Constant)
 
   int32_t value() const { return hydrogen()->Integer32Value(); }
 };
 
 
-class LConstantS: public LTemplateInstruction<1, 0, 0> {
+class LConstantS V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(ConstantS, "constant-s")
   DECLARE_HYDROGEN_ACCESSOR(Constant)
 
   Smi* value() const { return Smi::FromInt(hydrogen()->Integer32Value()); }
 };
 
 
-class LConstantT: public LTemplateInstruction<1, 0, 0> {
+class LConstantT V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(ConstantT, "constant-t")
   DECLARE_HYDROGEN_ACCESSOR(Constant)
 
   Handle<Object> value(Isolate* isolate) const {
     return hydrogen()->handle(isolate);
   }
 };
 
 
-class LContext: public LTemplateInstruction<1, 0, 0> {
+class LContext V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(Context, "context")
   DECLARE_HYDROGEN_ACCESSOR(Context)
 };
 
 
-class LDateField: public LTemplateInstruction<1, 1, 0> {
+class LDateField V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   LDateField(LOperand* date, Smi* index) : index_(index) {
     inputs_[0] = date;
   }
 
   LOperand* date() { return inputs_[0]; }
   Smi* index() const { return index_; }
 
   DECLARE_CONCRETE_INSTRUCTION(DateField, "date-field")
   DECLARE_HYDROGEN_ACCESSOR(DateField)
 
  private:
   Smi* index_;
 };
 
 
-class LDebugBreak: public LTemplateInstruction<0, 0, 0> {
+class LDebugBreak V8_FINAL : public LTemplateInstruction<0, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(DebugBreak, "break")
 };
 
 
-class LDeclareGlobals: public LTemplateInstruction<0, 0, 0> {
+class LDeclareGlobals V8_FINAL : public LTemplateInstruction<0, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(DeclareGlobals, "declare-globals")
   DECLARE_HYDROGEN_ACCESSOR(DeclareGlobals)
 };
 
 
-class LDeoptimize: public LTemplateInstruction<0, 0, 0> {
+class LDeoptimize V8_FINAL : public LTemplateInstruction<0, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(Deoptimize, "deoptimize")
   DECLARE_HYDROGEN_ACCESSOR(Deoptimize)
 };
 
 
-class LDivI: public LTemplateInstruction<1, 2, 1> {
+class LDivI V8_FINAL : public LTemplateInstruction<1, 2, 1> {
  public:
   LDivI(LOperand* left, LOperand* right, LOperand* temp) {
     inputs_[0] = left;
     inputs_[1] = right;
     temps_[0] = temp;
   }
 
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
   LOperand* temp() { return temps_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(DivI, "div-i")
   DECLARE_HYDROGEN_ACCESSOR(Div)
 };
 
 
-class LDoubleToIntOrSmi: public LTemplateInstruction<1, 1, 0> {
+class LDoubleToIntOrSmi V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  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(); }
 };
 
 
-class LElementsKind: public LTemplateInstruction<1, 1, 0> {
+class LElementsKind V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LElementsKind(LOperand* value) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(ElementsKind, "elements-kind")
   DECLARE_HYDROGEN_ACCESSOR(ElementsKind)
 };
 
 
-class LForInCacheArray: public LTemplateInstruction<1, 1, 0> {
+class LForInCacheArray V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LForInCacheArray(LOperand* map) {
     inputs_[0] = map;
   }
 
   LOperand* map() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(ForInCacheArray, "for-in-cache-array")
 
   int idx() {
     return HForInCacheArray::cast(this->hydrogen_value())->idx();
   }
 };
 
 
-class LForInPrepareMap: public LTemplateInstruction<1, 1, 0> {
+class LForInPrepareMap V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LForInPrepareMap(LOperand* object) {
     inputs_[0] = object;
   }
 
   LOperand* object() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(ForInPrepareMap, "for-in-prepare-map")
 };
 
 
-class LGetCachedArrayIndex: public LTemplateInstruction<1, 1, 0> {
+class LGetCachedArrayIndex V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LGetCachedArrayIndex(LOperand* value) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(GetCachedArrayIndex, "get-cached-array-index")
   DECLARE_HYDROGEN_ACCESSOR(GetCachedArrayIndex)
 };
 
 
-class LGlobalObject: public LTemplateInstruction<1, 1, 0> {
+class LGlobalObject V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LGlobalObject(LOperand* context) {
     inputs_[0] = context;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(GlobalObject, "global-object")
 
   LOperand* context() { return inputs_[0]; }
 };
 
 
-class LGlobalReceiver: public LTemplateInstruction<1, 1, 0> {
+class LGlobalReceiver V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LGlobalReceiver(LOperand* global_object) {
     inputs_[0] = global_object;
   }
 
   LOperand* global_object() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(GlobalReceiver, "global-receiver")
 };
 
 
-class LHasCachedArrayIndexAndBranch: public LControlInstruction<1, 1> {
+class LHasCachedArrayIndexAndBranch V8_FINAL
+    : 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)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 };
 
 
-class LHasInstanceTypeAndBranch: public LControlInstruction<1, 1> {
+class LHasInstanceTypeAndBranch V8_FINAL : public LControlInstruction<1, 1> {
  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)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 };
 
 
-class LInnerAllocatedObject: public LTemplateInstruction<1, 1, 0> {
+class LInnerAllocatedObject V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LInnerAllocatedObject(LOperand* base_object) {
     inputs_[0] = base_object;
   }
 
   LOperand* base_object() { return inputs_[0]; }
   int offset() { return hydrogen()->offset(); }
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   DECLARE_CONCRETE_INSTRUCTION(InnerAllocatedObject, "sub-allocated-object")
   DECLARE_HYDROGEN_ACCESSOR(InnerAllocatedObject)
 };
 
 
-class LInstanceOf: public LTemplateInstruction<1, 2, 0> {
+class LInstanceOf V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
   LInstanceOf(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(InstanceOf, "instance-of")
 };
 
 
-class LInstanceOfKnownGlobal: public LTemplateInstruction<1, 1, 0> {
+class LInstanceOfKnownGlobal V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LInstanceOfKnownGlobal(LOperand* value) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(InstanceOfKnownGlobal,
                                "instance-of-known-global")
   DECLARE_HYDROGEN_ACCESSOR(InstanceOfKnownGlobal)
 
   Handle<JSFunction> function() const { return hydrogen()->function(); }
   LEnvironment* GetDeferredLazyDeoptimizationEnvironment() {
     return lazy_deopt_env_;
   }
-  virtual void SetDeferredLazyDeoptimizationEnvironment(LEnvironment* env) {
+  virtual void SetDeferredLazyDeoptimizationEnvironment(
+      LEnvironment* env) V8_OVERRIDE {
     lazy_deopt_env_ = env;
   }
 
  private:
   LEnvironment* lazy_deopt_env_;
 };
 
 
-class LInteger32ToDouble: public LTemplateInstruction<1, 1, 0> {
+class LInteger32ToDouble V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LInteger32ToDouble(LOperand* value) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(Integer32ToDouble, "int32-to-double")
 };
 
 
-class LInteger32ToSmi: public LTemplateInstruction<1, 1, 0> {
+class LInteger32ToSmi V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LInteger32ToSmi(LOperand* value) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(Integer32ToDouble, "int32-to-smi")
   DECLARE_HYDROGEN_ACCESSOR(Change)
 };
 
 
-class LInvokeFunction: public LTemplateInstruction<1, 1, 0> {
+class LInvokeFunction V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LInvokeFunction(LOperand* function) {
     inputs_[0] = function;
   }
 
   LOperand* function() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(InvokeFunction, "invoke-function")
   DECLARE_HYDROGEN_ACCESSOR(InvokeFunction)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   int arity() const { return hydrogen()->argument_count() - 1; }
 };
 
 
-class LIsConstructCallAndBranch: public LControlInstruction<0, 2> {
+class LIsConstructCallAndBranch V8_FINAL : public LControlInstruction<0, 2> {
  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")
 };
 
 
-class LIsNumberAndBranch: public LControlInstruction<1, 0> {
+class LIsNumberAndBranch V8_FINAL : public LControlInstruction<1, 0> {
  public:
   explicit LIsNumberAndBranch(LOperand* value) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(IsNumberAndBranch, "is-number-and-branch")
   DECLARE_HYDROGEN_ACCESSOR(IsNumberAndBranch)
 };
 
 
-class LIsObjectAndBranch: public LControlInstruction<1, 2> {
+class LIsObjectAndBranch V8_FINAL : public LControlInstruction<1, 2> {
  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)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 };
 
 
-class LIsStringAndBranch: public LControlInstruction<1, 1> {
+class LIsStringAndBranch V8_FINAL : public LControlInstruction<1, 1> {
  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)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 };
 
 
-class LIsSmiAndBranch: public LControlInstruction<1, 0> {
+class LIsSmiAndBranch V8_FINAL : public LControlInstruction<1, 0> {
  public:
   explicit LIsSmiAndBranch(LOperand* value) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(IsSmiAndBranch, "is-smi-and-branch")
   DECLARE_HYDROGEN_ACCESSOR(IsSmiAndBranch)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 };
 
 
-class LIsUndetectableAndBranch: public LControlInstruction<1, 1> {
+class LIsUndetectableAndBranch V8_FINAL : public LControlInstruction<1, 1> {
  public:
   explicit LIsUndetectableAndBranch(LOperand* value, LOperand* temp) {
     inputs_[0] = value;
     temps_[0] = temp;
   }
 
   LOperand* value() { return inputs_[0]; }
   LOperand* temp() { return temps_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(IsUndetectableAndBranch,
                                "is-undetectable-and-branch")
   DECLARE_HYDROGEN_ACCESSOR(IsUndetectableAndBranch)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 };
 
 
-class LLoadContextSlot: public LTemplateInstruction<1, 1, 0> {
+class LLoadContextSlot V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LLoadContextSlot(LOperand* context) {
     inputs_[0] = context;
   }
 
   LOperand* context() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(LoadContextSlot, "load-context-slot")
   DECLARE_HYDROGEN_ACCESSOR(LoadContextSlot)
 
-  int slot_index() { return hydrogen()->slot_index(); }
+  int slot_index() const { return hydrogen()->slot_index(); }
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 };
 
 
-class LLoadNamedField: public LTemplateInstruction<1, 1, 0> {
+class LLoadNamedField V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LLoadNamedField(LOperand* object) {
     inputs_[0] = object;
   }
 
   LOperand* object() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(LoadNamedField, "load-named-field")
   DECLARE_HYDROGEN_ACCESSOR(LoadNamedField)
 };
 
 
-class LFunctionLiteral: public LTemplateInstruction<1, 0, 0> {
+class LFunctionLiteral V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(FunctionLiteral, "function-literal")
   DECLARE_HYDROGEN_ACCESSOR(FunctionLiteral)
 };
 
 
-class LLoadExternalArrayPointer: public LTemplateInstruction<1, 1, 0> {
+class LLoadExternalArrayPointer V8_FINAL
+    : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LLoadExternalArrayPointer(LOperand* object) {
     inputs_[0] = object;
   }
 
   LOperand* object() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(LoadExternalArrayPointer,
                                "load-external-array-pointer")
 };
 
 
-class LLoadFunctionPrototype: public LTemplateInstruction<1, 1, 1> {
+class LLoadFunctionPrototype V8_FINAL : public LTemplateInstruction<1, 1, 1> {
  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)
 };
 
 
-class LLoadGlobalCell: public LTemplateInstruction<1, 0, 0> {
+class LLoadGlobalCell V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(LoadGlobalCell, "load-global-cell")
   DECLARE_HYDROGEN_ACCESSOR(LoadGlobalCell)
 };
 
 
-class LLoadGlobalGeneric: public LTemplateInstruction<1, 1, 0> {
+class LLoadGlobalGeneric V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LLoadGlobalGeneric(LOperand* global_object) {
     inputs_[0] = global_object;
   }
 
   LOperand* global_object() { return inputs_[0]; }
 
   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> {
+class LLoadKeyed V8_FINAL : 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();
   }
   uint32_t additional_index() const {
     return this->hydrogen()->index_offset();
   }
-  void PrintDataTo(StringStream* stream) {
+  void PrintDataTo(StringStream* stream) V8_OVERRIDE {
     this->elements()->PrintTo(stream);
     stream->Add("[");
     this->key()->PrintTo(stream);
     if (this->hydrogen()->IsDehoisted()) {
       stream->Add(" + %d]", this->additional_index());
     } else {
       stream->Add("]");
     }
   }
 
@@ skipping 33 matching lines @@
       LLoadKeyed<1>(elements, key) {
     temps_[0] = temp;
   }
 
   LOperand* temp() { return temps_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(LoadKeyedFixedDouble, "load-keyed-fixed-double");
 };
 
 
-class LLoadKeyedGeneric: public LTemplateInstruction<1, 2, 0> {
+class LLoadKeyedGeneric V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
   LLoadKeyedGeneric(LOperand* object, LOperand* key) {
     inputs_[0] = object;
     inputs_[1] = key;
   }
 
   LOperand* object() { return inputs_[0]; }
   LOperand* key() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(LoadKeyedGeneric, "load-keyed-generic")
 };
 
 
-class LLoadNamedGeneric: public LTemplateInstruction<1, 1, 0> {
+class LLoadNamedGeneric V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LLoadNamedGeneric(LOperand* object) {
     inputs_[0] = object;
   }
 
   LOperand* object() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(LoadNamedGeneric, "load-named-generic")
   DECLARE_HYDROGEN_ACCESSOR(LoadNamedGeneric)
 
   Handle<Object> name() const { return hydrogen()->name(); }
 };
 
 
-class LMapEnumLength: public LTemplateInstruction<1, 1, 0> {
+class LMapEnumLength V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LMapEnumLength(LOperand* value) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(MapEnumLength, "map-enum-length")
 };
 
 
 template<int T>
-class LUnaryMathOperation: public LTemplateInstruction<1, 1, T> {
+class LUnaryMathOperation V8_FINAL : 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(); }
 
-  void PrintDataTo(StringStream* stream);
+  void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   DECLARE_HYDROGEN_ACCESSOR(UnaryMathOperation)
 };
 
 
-class LMathAbs: public LUnaryMathOperation<0> {
+class LMathAbs V8_FINAL : public LUnaryMathOperation<0> {
  public:
   explicit LMathAbs(LOperand* value) : LUnaryMathOperation<0>(value) { }
   DECLARE_CONCRETE_INSTRUCTION(MathAbs, "math-abs")
 };
 
 
 class LMathAbsTagged: public LUnaryMathOperation<3> {
  public:
   LMathAbsTagged(LOperand* value,
                       LOperand* temp1, LOperand* temp2, LOperand* temp3)
       : LUnaryMathOperation<3>(value) {
     temps_[0] = temp1;
     temps_[1] = temp2;
     temps_[2] = temp3;
   }
 
   LOperand* temp1() { return temps_[0]; }
   LOperand* temp2() { return temps_[1]; }
   LOperand* temp3() { return temps_[2]; }
 
   DECLARE_CONCRETE_INSTRUCTION(MathAbsTagged, "math-abs-tagged")
 };
 
 
-class LMathCos: public LUnaryMathOperation<0> {
+class LMathCos V8_FINAL : public LUnaryMathOperation<0> {
  public:
   explicit LMathCos(LOperand* value) : LUnaryMathOperation<0>(value) { }
   DECLARE_CONCRETE_INSTRUCTION(MathCos, "math-cos")
 };
 
 
-class LMathExp: public LUnaryMathOperation<4> {
+class LMathExp V8_FINAL : public LUnaryMathOperation<4> {
  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")
 };
 
 
-class LMathFloor: public LUnaryMathOperation<0> {
+class LMathFloor V8_FINAL : public LUnaryMathOperation<0> {
  public:
   explicit LMathFloor(LOperand* value) : LUnaryMathOperation<0>(value) { }
   DECLARE_CONCRETE_INSTRUCTION(MathFloor, "math-floor")
 };
 
 
-class LMathFloorOfDiv : public LTemplateInstruction<1, 2, 1> {
+class LMathFloorOfDiv V8_FINAL : public LTemplateInstruction<1, 2, 1> {
  public:
   LMathFloorOfDiv(LOperand* left,
                   LOperand* right,
                   LOperand* temp = NULL) {
     inputs_[0] = left;
     inputs_[1] = right;
     temps_[0] = temp;
   }
 
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
   LOperand* temp() { return temps_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(MathFloorOfDiv, "math-floor-of-div")
   DECLARE_HYDROGEN_ACCESSOR(MathFloorOfDiv)
 };
 
 
-class LMathLog: public LUnaryMathOperation<0> {
+class LMathLog V8_FINAL : public LUnaryMathOperation<0> {
  public:
   explicit LMathLog(LOperand* value) : LUnaryMathOperation<0>(value) { }
   DECLARE_CONCRETE_INSTRUCTION(MathLog, "math-log")
 };
 
 
-class LMathMinMax: public LTemplateInstruction<1, 2, 0> {
+class LMathMinMax V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
   LMathMinMax(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(MathMinMax, "math-min-max")
   DECLARE_HYDROGEN_ACCESSOR(MathMinMax)
 };
 
 
-class LMathPowHalf: public LUnaryMathOperation<0> {
+class LMathPowHalf V8_FINAL : public LUnaryMathOperation<0> {
  public:
   explicit LMathPowHalf(LOperand* value) : LUnaryMathOperation<0>(value) { }
   DECLARE_CONCRETE_INSTRUCTION(MathPowHalf, "math-pow-half")
 };
 
 
-class LMathRound: public LUnaryMathOperation<1> {
+class LMathRound V8_FINAL : public LUnaryMathOperation<1> {
  public:
   LMathRound(LOperand* value, LOperand* temp1)
       : LUnaryMathOperation<1>(value) {
     temps_[0] = temp1;
   }
 
   LOperand* temp1() { return temps_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(MathRound, "math-round")
 };
 
 
-class LMathSin: public LUnaryMathOperation<0> {
+class LMathSin V8_FINAL : public LUnaryMathOperation<0> {
  public:
   explicit LMathSin(LOperand* value) : LUnaryMathOperation<0>(value) { }
   DECLARE_CONCRETE_INSTRUCTION(MathSin, "math-sin")
 };
 
 
-class LMathSqrt: public LUnaryMathOperation<0> {
+class LMathSqrt V8_FINAL : public LUnaryMathOperation<0> {
  public:
   explicit LMathSqrt(LOperand* value) : LUnaryMathOperation<0>(value) { }
   DECLARE_CONCRETE_INSTRUCTION(MathSqrt, "math-sqrt")
 };
 
 
-class LMathTan: public LUnaryMathOperation<0> {
+class LMathTan V8_FINAL : public LUnaryMathOperation<0> {
  public:
   explicit LMathTan(LOperand* value) : LUnaryMathOperation<0>(value) { }
   DECLARE_CONCRETE_INSTRUCTION(MathTan, "math-tan")
 };
 
 
-class LModI: public LTemplateInstruction<1, 2, 0> {
+class LModI V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  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)
 };
 
 
-class LMulConstIS: public LTemplateInstruction<1, 2, 0> {
+class LMulConstIS V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  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)
 };
 
 
-class LMulI: public LTemplateInstruction<1, 2, 0> {
+class LMulI V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
   LMulI(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(MulI, "mul-i")
   DECLARE_HYDROGEN_ACCESSOR(Mul)
 };
 
 
-class LMulS: public LTemplateInstruction<1, 2, 0> {
+class LMulS V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  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)
 };
 
 
-class LNumberTagD: public LTemplateInstruction<1, 1, 2> {
+class LNumberTagD V8_FINAL : public LTemplateInstruction<1, 1, 2> {
  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)
 };
 
 
-class LNumberTagU: public LTemplateInstruction<1, 1, 2> {
+class LNumberTagU V8_FINAL : public LTemplateInstruction<1, 1, 2> {
  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")
 };
 
 
-class LNumberUntagD: public LTemplateInstruction<1, 1, 1> {
+class LNumberUntagD V8_FINAL : public LTemplateInstruction<1, 1, 1> {
  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)
 };
 
 
-class LParameter: public LTemplateInstruction<1, 0, 0> {
+class LParameter V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   virtual bool HasInterestingComment(LCodeGen* gen) const { return false; }
   DECLARE_CONCRETE_INSTRUCTION(Parameter, "parameter")
 };
 
 
-class LPower: public LTemplateInstruction<1, 2, 0> {
+class LPower V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
   LPower(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(Power, "power")
   DECLARE_HYDROGEN_ACCESSOR(Power)
 };
 
 
-class LPushArgument: public LTemplateInstruction<0, 1, 0> {
+class LPushArgument V8_FINAL : public LTemplateInstruction<0, 1, 0> {
  public:
   explicit LPushArgument(LOperand* value) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(PushArgument, "push-argument")
 };
 
 
-class LRandom: public LTemplateInstruction<1, 1, 0> {
+class LRandom V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LRandom(LOperand* global_object) {
     inputs_[0] = global_object;
   }
 
   LOperand* global_object() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(Random, "random")
   DECLARE_HYDROGEN_ACCESSOR(Random)
 };
 
 
-class LRegExpLiteral: public LTemplateInstruction<1, 0, 0> {
+class LRegExpLiteral V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(RegExpLiteral, "regexp-literal")
   DECLARE_HYDROGEN_ACCESSOR(RegExpLiteral)
 };
 
 
-class LReturn: public LTemplateInstruction<0, 2, 0> {
+class LReturn V8_FINAL : public LTemplateInstruction<0, 2, 0> {
  public:
   LReturn(LOperand* value, LOperand* parameter_count) {
     inputs_[0] = value;
     inputs_[1] = parameter_count;
   }
 
   LOperand* value() { return inputs_[0]; }
   LOperand* parameter_count() { return inputs_[1]; }
 
   bool has_constant_parameter_count() {
     return parameter_count()->IsConstantOperand();
   }
   LConstantOperand* constant_parameter_count() {
     ASSERT(has_constant_parameter_count());
     return LConstantOperand::cast(parameter_count());
   }
 
   DECLARE_CONCRETE_INSTRUCTION(Return, "return")
 };
 
 
-class LSeqStringSetChar: public LTemplateInstruction<1, 3, 1> {
+class LSeqStringSetChar V8_FINAL : public LTemplateInstruction<1, 3, 1> {
  public:
   LSeqStringSetChar(String::Encoding encoding,
                     LOperand* string,
                     LOperand* index,
                     LOperand* value,
                     LOperand* temp) : encoding_(encoding) {
     inputs_[0] = string;
     inputs_[1] = index;
     inputs_[2] = value;
     temps_[0] = temp;
   }
 
   String::Encoding encoding() { return encoding_; }
   LOperand* string() { return inputs_[0]; }
   LOperand* index() { return inputs_[1]; }
   LOperand* value() { return inputs_[2]; }
   LOperand* temp() { return temps_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(SeqStringSetChar, "seq-string-set-char")
   DECLARE_HYDROGEN_ACCESSOR(SeqStringSetChar)
 
  private:
   String::Encoding encoding_;
 };
 
 
-class LSmiTag: public LTemplateInstruction<1, 1, 0> {
+class LSmiTag V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LSmiTag(LOperand* value) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(SmiTag, "smi-tag")
 };
 
 
-class LSmiUntag: public LTemplateInstruction<1, 1, 0> {
+class LSmiUntag V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   LSmiUntag(LOperand* value, bool needs_check)
       : needs_check_(needs_check) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
   bool needs_check() const { return needs_check_; }
 
   DECLARE_CONCRETE_INSTRUCTION(SmiUntag, "smi-untag")
 
  private:
   bool needs_check_;
 };
 
 
-class LStackCheck: public LTemplateInstruction<0, 0, 0> {
+class LStackCheck V8_FINAL : public LTemplateInstruction<0, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(StackCheck, "stack-check")
   DECLARE_HYDROGEN_ACCESSOR(StackCheck)
 
   Label* done_label() { return &done_label_; }
 
  private:
   Label done_label_;
 };
 
 
 template<int T>
-class LStoreKeyed: public LTemplateInstruction<0, 3, T> {
+class LStoreKeyed V8_FINAL : 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(); }
   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() {
     return this->hydrogen()->NeedsCanonicalization();
   }
   uint32_t additional_index() const { return this->hydrogen()->index_offset(); }
 
-  void PrintDataTo(StringStream* stream) {
+  void PrintDataTo(StringStream* stream) V8_OVERRIDE {
     this->elements()->PrintTo(stream);
     stream->Add("[");
     this->key()->PrintTo(stream);
     if (this->hydrogen()->IsDehoisted()) {
       stream->Add(" + %d] <-", this->additional_index());
     } else {
       stream->Add("] <- ");
     }
 
     if (this->value() == NULL) {
       ASSERT(hydrogen()->IsConstantHoleStore() &&
              hydrogen()->value()->representation().IsDouble());
       stream->Add("<the hole(nan)>");
     } else {
       this->value()->PrintTo(stream);
     }
   }
 
   DECLARE_HYDROGEN_ACCESSOR(StoreKeyed)
 };
 
 
-class LStoreKeyedExternal: public LStoreKeyed<1> {
+class LStoreKeyedExternal V8_FINAL : public LStoreKeyed<1> {
  public:
   LStoreKeyedExternal(LOperand* elements, LOperand* key, LOperand* value,
                       LOperand* temp) :
       LStoreKeyed<1>(elements, key, value) {
     temps_[0] = temp;
   };
 
   LOperand* temp() { return temps_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(StoreKeyedExternal, "store-keyed-external")
 };
 
 
-class LStoreKeyedFixed: public LStoreKeyed<1> {
+class LStoreKeyedFixed V8_FINAL : public LStoreKeyed<1> {
  public:
   LStoreKeyedFixed(LOperand* elements, LOperand* key, LOperand* value,
                    LOperand* temp) :
       LStoreKeyed<1>(elements, key, value) {
     temps_[0] = temp;
   };
 
   LOperand* temp() { return temps_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(StoreKeyedFixed, "store-keyed-fixed")
 };
 
 
-class LStoreKeyedFixedDouble: public LStoreKeyed<1> {
+class LStoreKeyedFixedDouble V8_FINAL : public LStoreKeyed<1> {
  public:
   LStoreKeyedFixedDouble(LOperand* elements, LOperand* key, LOperand* value,
                          LOperand* temp) :
       LStoreKeyed<1>(elements, key, value) {
     temps_[0] = temp;
   };
 
   LOperand* temp() { return temps_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(StoreKeyedFixedDouble,
                                "store-keyed-fixed-double")
 };
 
 
-class LStoreKeyedGeneric: public LTemplateInstruction<0, 3, 0> {
+class LStoreKeyedGeneric V8_FINAL : public LTemplateInstruction<0, 3, 0> {
  public:
   LStoreKeyedGeneric(LOperand* obj, LOperand* key, LOperand* value) {
     inputs_[0] = obj;
     inputs_[1] = key;
     inputs_[2] = value;
   }
 
   LOperand* object() { return inputs_[0]; }
   LOperand* key() { return inputs_[1]; }
   LOperand* value() { return inputs_[2]; }
 
   DECLARE_CONCRETE_INSTRUCTION(StoreKeyedGeneric, "store-keyed-generic")
   DECLARE_HYDROGEN_ACCESSOR(StoreKeyedGeneric)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   StrictModeFlag strict_mode_flag() { return hydrogen()->strict_mode_flag(); }
 };
 
 
-class LStoreNamedField: public LTemplateInstruction<0, 2, 2> {
+class LStoreNamedField V8_FINAL : public LTemplateInstruction<0, 2, 2> {
  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)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   Handle<Map> transition() const { return hydrogen()->transition_map(); }
   Representation representation() const {
     return hydrogen()->field_representation();
   }
 };
 
 
-class LStoreNamedGeneric: public LTemplateInstruction<0, 2, 0> {
+class LStoreNamedGeneric V8_FINAL: public LTemplateInstruction<0, 2, 0> {
  public:
   LStoreNamedGeneric(LOperand* object, LOperand* value) {
     inputs_[0] = object;
     inputs_[1] = value;
   }
 
   LOperand* object() { return inputs_[0]; }
   LOperand* value() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(StoreNamedGeneric, "store-named-generic")
   DECLARE_HYDROGEN_ACCESSOR(StoreNamedGeneric)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   Handle<Object> name() const { return hydrogen()->name(); }
   StrictModeFlag strict_mode_flag() { return hydrogen()->strict_mode_flag(); }
 };
 
 
-class LStringAdd: public LTemplateInstruction<1, 2, 0> {
+class LStringAdd V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
   LStringAdd(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(StringAdd, "string-add")
   DECLARE_HYDROGEN_ACCESSOR(StringAdd)
 };
 
 
 
-class LStringCharCodeAt: public LTemplateInstruction<1, 2, 0> {
+class LStringCharCodeAt V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
   LStringCharCodeAt(LOperand* string, LOperand* index) {
     inputs_[0] = string;
     inputs_[1] = index;
   }
 
   LOperand* string() { return inputs_[0]; }
   LOperand* index() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(StringCharCodeAt, "string-char-code-at")
   DECLARE_HYDROGEN_ACCESSOR(StringCharCodeAt)
 };
 
 
-class LStringCharFromCode: public LTemplateInstruction<1, 1, 0> {
+class LStringCharFromCode V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LStringCharFromCode(LOperand* char_code) {
     inputs_[0] = char_code;
   }
 
   LOperand* char_code() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(StringCharFromCode, "string-char-from-code")
   DECLARE_HYDROGEN_ACCESSOR(StringCharFromCode)
 };
 
 
-class LStringCompareAndBranch: public LControlInstruction<2, 0> {
+class LStringCompareAndBranch V8_FINAL : public LControlInstruction<2, 0> {
  public:
   LStringCompareAndBranch(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(StringCompareAndBranch,
                                "string-compare-and-branch")
   DECLARE_HYDROGEN_ACCESSOR(StringCompareAndBranch)
 
   Token::Value op() const { return hydrogen()->token(); }
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 };
 
 
 // Truncating conversion from a tagged value to an int32.
-class LTaggedToI: public LTemplateInstruction<1, 1, 2> {
+class LTaggedToI V8_FINAL : public LTemplateInstruction<1, 1, 2> {
  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(UnaryOperation)
 
   bool truncating() { return hydrogen()->CanTruncateToInt32(); }
 };
 
 
-class LShiftI: public LTemplateInstruction<1, 2, 0> {
+class LShiftI V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
   LShiftI(Token::Value op, LOperand* left, LOperand* right, bool can_deopt)
       : op_(op), can_deopt_(can_deopt) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   Token::Value op() const { return op_; }
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
@@ skipping 20 matching lines @@
   LOperand* code_object() { return inputs_[1]; }
   LOperand* temp() { return temps_[0]; }
 
   virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   DECLARE_CONCRETE_INSTRUCTION(StoreCodeEntry, "store-code-entry")
   DECLARE_HYDROGEN_ACCESSOR(StoreCodeEntry)
 };
 
 
-class LStoreContextSlot: public LTemplateInstruction<0, 2, 1> {
+class LStoreContextSlot V8_FINAL : public LTemplateInstruction<0, 2, 1> {
  public:
   LStoreContextSlot(LOperand* context, LOperand* value, LOperand* temp) {
     inputs_[0] = context;
     inputs_[1] = value;
     temps_[0] = temp;
   }
 
   LOperand* context() { return inputs_[0]; }
   LOperand* value() { return inputs_[1]; }
   LOperand* temp() { return temps_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(StoreContextSlot, "store-context-slot")
   DECLARE_HYDROGEN_ACCESSOR(StoreContextSlot)
 
   int slot_index() { return hydrogen()->slot_index(); }
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 };
 
 
-class LStoreGlobalCell: public LTemplateInstruction<0, 1, 2> {
+class LStoreGlobalCell V8_FINAL : public LTemplateInstruction<0, 1, 2> {
  public:
   LStoreGlobalCell(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(StoreGlobalCell, "store-global-cell")
   DECLARE_HYDROGEN_ACCESSOR(StoreGlobalCell)
 };
 
 
-class LStoreGlobalGeneric: public LTemplateInstruction<0, 2, 0> {
+class LStoreGlobalGeneric V8_FINAL : public LTemplateInstruction<0, 2, 0> {
  public:
   LStoreGlobalGeneric(LOperand* global_object, LOperand* value) {
     inputs_[0] = global_object;
     inputs_[1] = value;
   }
 
   LOperand* global_object() { return inputs_[0]; }
   LOperand* value() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(StoreGlobalGeneric, "store-global-generic")
   DECLARE_HYDROGEN_ACCESSOR(StoreGlobalGeneric)
 
   Handle<Object> name() const { return hydrogen()->name(); }
   StrictModeFlag strict_mode_flag() { return hydrogen()->strict_mode_flag(); }
 };
 
 
-class LSubI: public LTemplateInstruction<1, 2, 0> {
+class LSubI V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
   LSubI(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(SubI, "sub-i")
   DECLARE_HYDROGEN_ACCESSOR(Sub)
 };
 
 
 class 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)
 };
 
 
-class LThisFunction: public LTemplateInstruction<1, 0, 0> {
+class LThisFunction V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(ThisFunction, "this-function")
   DECLARE_HYDROGEN_ACCESSOR(ThisFunction)
 };
 
 
-class LThrow: public LTemplateInstruction<0, 1, 0> {
+class LThrow V8_FINAL : public LTemplateInstruction<0, 1, 0> {
  public:
   explicit LThrow(LOperand* value) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(Throw, "throw")
 };
 
 
-class LToFastProperties: public LTemplateInstruction<1, 1, 0> {
+class LToFastProperties V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LToFastProperties(LOperand* value) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(ToFastProperties, "to-fast-properties")
   DECLARE_HYDROGEN_ACCESSOR(ToFastProperties)
 };
 
 
-class LTransitionElementsKind: public LTemplateInstruction<0, 1, 2> {
+class LTransitionElementsKind V8_FINAL : public LTemplateInstruction<0, 1, 2> {
  public:
   LTransitionElementsKind(LOperand* object,
                           LOperand* temp1,
                           LOperand* temp2 = NULL) {
     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(TransitionElementsKind,
                                "transition-elements-kind")
   DECLARE_HYDROGEN_ACCESSOR(TransitionElementsKind)
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
-  Handle<Map> original_map() { return hydrogen()->original_map(); }
-  Handle<Map> transitioned_map() { return hydrogen()->transitioned_map(); }
-  ElementsKind from_kind() { return hydrogen()->from_kind(); }
-  ElementsKind to_kind() { return hydrogen()->to_kind(); }
+  Handle<Map> original_map() const { return hydrogen()->original_map(); }
+  Handle<Map> transitioned_map() const {
+    return hydrogen()->transitioned_map();
+  }
+  ElementsKind from_kind() const { return hydrogen()->from_kind(); }
+  ElementsKind to_kind() const { return hydrogen()->to_kind(); }
 };
 
 
-class LTrapAllocationMemento : public LTemplateInstruction<0, 1, 2> {
+class LTrapAllocationMemento V8_FINAL : public LTemplateInstruction<0, 1, 2> {
  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")
 };
 
 
-class LTruncateDoubleToIntOrSmi: public LTemplateInstruction<1, 1, 2> {
+class LTruncateDoubleToIntOrSmi V8_FINAL
+    : public LTemplateInstruction<1, 1, 2> {
  public:
   LTruncateDoubleToIntOrSmi(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(TruncateDoubleToIntOrSmi,
                                "truncate-double-to-int-or-smi")
   DECLARE_HYDROGEN_ACCESSOR(UnaryOperation)
 
   bool tag_result() { return hydrogen()->representation().IsSmi(); }
 };
 
 
-class LTypeof: public LTemplateInstruction<1, 1, 0> {
+class LTypeof V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LTypeof(LOperand* value) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(Typeof, "typeof")
 };
 
 
-class LTypeofIsAndBranch: public LControlInstruction<1, 2> {
+class LTypeofIsAndBranch V8_FINAL : public LControlInstruction<1, 2> {
  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() { return hydrogen()->type_literal(); }
+  Handle<String> type_literal() const { return hydrogen()->type_literal(); }
 
-  virtual void PrintDataTo(StringStream* stream);
+  virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 };
 
 
-class LUint32ToDouble: public LTemplateInstruction<1, 1, 0> {
+class LUint32ToDouble V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LUint32ToDouble(LOperand* value) {
     inputs_[0] = value;
   }
 
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(Uint32ToDouble, "uint32-to-double")
 };
 
 
-class LValueOf: public LTemplateInstruction<1, 1, 1> {
+class LValueOf V8_FINAL : public LTemplateInstruction<1, 1, 1> {
  public:
   LValueOf(LOperand* value, LOperand* temp) {
     inputs_[0] = value;
     temps_[0] = temp;
   }
 
   LOperand* value() { return inputs_[0]; }
   LOperand* temp() { return temps_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(ValueOf, "value-of")
   DECLARE_HYDROGEN_ACCESSOR(ValueOf)
 };
 
 
-class LCheckMapValue: public LTemplateInstruction<0, 2, 1> {
+class LCheckMapValue V8_FINAL : public LTemplateInstruction<0, 2, 1> {
  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")
 };
 
 
-class LLoadFieldByIndex: public LTemplateInstruction<1, 2, 0> {
+class LLoadFieldByIndex V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
   LLoadFieldByIndex(LOperand* object, LOperand* index) {
     inputs_[0] = object;
     inputs_[1] = index;
   }
 
   LOperand* object() { return inputs_[0]; }
   LOperand* index() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(LoadFieldByIndex, "load-field-by-index")
 };
 
 
-class LWrapReceiver: public LTemplateInstruction<1, 2, 1> {
+class LWrapReceiver V8_FINAL : public LTemplateInstruction<1, 2, 1> {
  public:
   LWrapReceiver(LOperand* receiver, LOperand* function, LOperand* temp) {
     inputs_[0] = receiver;
     inputs_[1] = function;
     temps_[0] = temp;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(WrapReceiver, "wrap-receiver")
 
   LOperand* receiver() { return inputs_[0]; }
   LOperand* function() { return inputs_[1]; }
   LOperand* temp() { return temps_[0]; }
 };
 
 
 class LChunkBuilder;
-class LPlatformChunk: public LChunk {
+class LPlatformChunk V8_FINAL : public LChunk {
  public:
   LPlatformChunk(CompilationInfo* info, HGraph* graph)
       : LChunk(info, graph) { }
 
   int GetNextSpillIndex();
   LOperand* GetNextSpillSlot(bool is_double);
 };
 
 
-class LChunkBuilder BASE_EMBEDDED {
+class LChunkBuilder  V8_FINAL BASE_EMBEDDED {
  public:
   LChunkBuilder(CompilationInfo* info, HGraph* graph, LAllocator* allocator)
       : chunk_(NULL),
         info_(info),
         graph_(graph),
         zone_(graph->zone()),
         status_(UNUSED),
         current_instruction_(NULL),
         current_block_(NULL),
         argument_count_(0),
@@ skipping 146 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_A64_LITHIUM_A64_H_