Merge IR classes for different bitwise operations AND, OR and XOR into one class.

src/x64/lithium-x64.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 775 matching lines @@
 
   LOperand* index() { return inputs_[0]; }
   LOperand* length() { return inputs_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(BoundsCheck, "bounds-check")
 };
 
 
 class LBitI: public LTemplateInstruction<1, 2, 0> {
  public:
-  LBitI(Token::Value op, LOperand* left, LOperand* right)
-      : op_(op) {
+  LBitI(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
 
-  Token::Value op() const { return op_; }
+  Token::Value op() const { return hydrogen()->op(); }
 
   DECLARE_CONCRETE_INSTRUCTION(BitI, "bit-i")
-
- private:
-  Token::Value op_;
+  DECLARE_HYDROGEN_ACCESSOR(Bitwise)
 };
 
 
 class LShiftI: public LTemplateInstruction<1, 2, 0> {
  public:
   LShiftI(Token::Value op, LOperand* left, LOperand* right, bool can_deopt)
       : op_(op), can_deopt_(can_deopt) {
     inputs_[0] = left;
     inputs_[1] = right;
   }
@@ skipping 1356 matching lines @@
   LInstruction* SetInstructionPendingDeoptimizationEnvironment(
       LInstruction* instr, int ast_id);
   void ClearInstructionPendingDeoptimizationEnvironment();
 
   LEnvironment* CreateEnvironment(HEnvironment* hydrogen_env,
                                   int* argument_index_accumulator);
 
   void VisitInstruction(HInstruction* current);
 
   void DoBasicBlock(HBasicBlock* block, HBasicBlock* next_block);
-  LInstruction* DoBit(Token::Value op, HBitwiseBinaryOperation* instr);
   LInstruction* DoShift(Token::Value op, HBitwiseBinaryOperation* instr);
   LInstruction* DoArithmeticD(Token::Value op,
                               HArithmeticBinaryOperation* instr);
   LInstruction* DoArithmeticT(Token::Value op,
                               HArithmeticBinaryOperation* instr);
 
   LChunk* chunk_;
   CompilationInfo* info_;
   HGraph* const graph_;
   Status status_;
   HInstruction* current_instruction_;
   HBasicBlock* current_block_;
   HBasicBlock* next_block_;
   int argument_count_;
   LAllocator* allocator_;
   int position_;
   LInstruction* instruction_pending_deoptimization_environment_;
   int pending_deoptimization_ast_id_;
 
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::int
 
 #endif  // V8_X64_LITHIUM_X64_H_