[turbofan] store block id with instruction

src/compiler/instruction.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_INSTRUCTION_H_
 #define V8_COMPILER_INSTRUCTION_H_
 
 #include <deque>
 #include <iosfwd>
 #include <map>
@@ skipping 839 matching lines @@
 
   const ParallelMove* GetParallelMove(GapPosition pos) const {
     return parallel_moves_[pos];
   }
 
   bool AreMovesRedundant() const;
 
   ParallelMove* const* parallel_moves() const { return &parallel_moves_[0]; }
   ParallelMove** parallel_moves() { return &parallel_moves_[0]; }
 
+  int block_id() const { return block_id_; }
+  void set_block_id(int id) {
+    DCHECK(id >= 0);
+    block_id_ = id;
+  }
+
   void Print(const RegisterConfiguration* config) const;
   void Print() const;
 
  private:
   explicit Instruction(InstructionCode opcode);
 
   Instruction(InstructionCode opcode, size_t output_count,
               InstructionOperand* outputs, size_t input_count,
               InstructionOperand* inputs, size_t temp_count,
               InstructionOperand* temps);
 
   typedef BitField<size_t, 0, 8> OutputCountField;
   typedef BitField<size_t, 8, 16> InputCountField;
   typedef BitField<size_t, 24, 6> TempCountField;
   typedef BitField<bool, 30, 1> IsCallField;
 
   InstructionCode opcode_;
   uint32_t bit_field_;
   ParallelMove* parallel_moves_[2];
   ReferenceMap* reference_map_;
+  int block_id_;
   InstructionOperand operands_[1];
 
   DISALLOW_COPY_AND_ASSIGN(Instruction);
 };
 
 
 struct PrintableInstruction {
   const RegisterConfiguration* register_configuration_;
   const Instruction* instr_;
 };
@@ skipping 406 matching lines @@
 
   Isolate* isolate() const { return isolate_; }
   const ReferenceMapDeque* reference_maps() const { return &reference_maps_; }
   Zone* zone() const { return zone_; }
 
   // Used by the instruction selector while adding instructions.
   int AddInstruction(Instruction* instr);
   void StartBlock(RpoNumber rpo);
   void EndBlock(RpoNumber rpo);
 
+  void FinishInstructionMap();
+
   int AddConstant(int virtual_register, Constant constant) {
     // TODO(titzer): allow RPO numbers as constants?
     DCHECK(constant.type() != Constant::kRpoNumber);
     DCHECK(virtual_register >= 0 && virtual_register < next_virtual_register_);
     DCHECK(constants_.find(virtual_register) == constants_.end());
     constants_.insert(std::make_pair(virtual_register, constant));
     return virtual_register;
   }
   Constant GetConstant(int virtual_register) const {
     ConstantMap::const_iterator it = constants_.find(virtual_register);
@@ skipping 71 matching lines @@
  private:
   friend std::ostream& operator<<(std::ostream& os,
                                   const PrintableInstructionSequence& code);
 
   typedef ZoneMap<const Instruction*, SourcePosition> SourcePositionMap;
 
   Isolate* isolate_;
   Zone* const zone_;
   InstructionBlocks* const instruction_blocks_;
   SourcePositionMap source_positions_;
-  IntVector block_starts_;
   ConstantMap constants_;
   Immediates immediates_;
   InstructionDeque instructions_;
   int next_virtual_register_;
   ReferenceMapDeque reference_maps_;
   ZoneVector<MachineRepresentation> representations_;
   DeoptimizationVector deoptimization_entries_;
 
   DISALLOW_COPY_AND_ASSIGN(InstructionSequence);
 };
 
 
 struct PrintableInstructionSequence {
   const RegisterConfiguration* register_configuration_;
   const InstructionSequence* sequence_;
 };
 
 
 std::ostream& operator<<(std::ostream& os,
                          const PrintableInstructionSequence& code);
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_INSTRUCTION_H_