CSE2410 Fall 2014 Bounce

enum RegisterKind {

  GENERAL_REGISTERS,

  DOUBLE_REGISTERS

};

  LOperand* CreateAssignedOperand(Zone* zone);

  int assigned_register() const { return assigned_register_; }

  int spill_start_index() const { return spill_start_index_; }

  void MakeSpilled(Zone* zone);

  // Returns use position in this live range that follows both start

  // live range to the result live range.

  void SplitAt(LifetimePosition position, LiveRange* result, Zone* zone);

  bool HasRegisterAssigned() const {

    return assigned_register_ != kInvalidAssignment;

  }

  int id_;

  bool spilled_;

  int assigned_register_;

  UseInterval* last_interval_;

  UseInterval* first_interval_;

  LOperand* current_hint_operand_;

  LOperand* spill_operand_;

  int spill_start_index_;

};

                          HBasicBlock* block,

                          HBasicBlock* pred);

  // Return parallel move that should be used to connect ranges split at the

  // given position.