38 class LifetimePosition {
42   static LifetimePosition FromInstructionIndex(int index) {  in FromInstructionIndex()
43     return LifetimePosition(index * kStep);  in FromInstructionIndex()
66   LifetimePosition InstructionStart() const {  in InstructionStart()
68     return LifetimePosition(value_ & ~(kStep - 1));  in InstructionStart()
73   LifetimePosition InstructionEnd() const {  in InstructionEnd()
75     return LifetimePosition(InstructionStart().Value() + kStep/2);  in InstructionEnd()
79   LifetimePosition NextInstruction() const {  in NextInstruction()
81     return LifetimePosition(InstructionStart().Value() + kStep);  in NextInstruction()
86   LifetimePosition PrevInstruction() const {  in PrevInstruction()
89     return LifetimePosition(InstructionStart().Value() - kStep);  in PrevInstruction()
94   LifetimePosition() : value_(-1) {}  in LifetimePosition()  function
100   static inline LifetimePosition Invalid() { return LifetimePosition(); }  in Invalid()
102   static inline LifetimePosition MaxPosition() {  in MaxPosition()
105     return LifetimePosition(kMaxInt);  in MaxPosition()
114   explicit LifetimePosition(int value) : value_(value) { }  in LifetimePosition()  function
123   UseInterval(LifetimePosition start, LifetimePosition end)  in UseInterval()
128   LifetimePosition start() const { return start_; }  in start()
129   LifetimePosition end() const { return end_; }  in end()
134   void SplitAt(LifetimePosition pos, Zone* zone);
138   LifetimePosition Intersect(const UseInterval* other) const {  in Intersect()
141     return LifetimePosition::Invalid();  in Intersect()
144   bool Contains(LifetimePosition point) const {  in Contains()
149   void set_start(LifetimePosition start) { start_ = start; }  in set_start()
152   LifetimePosition start_;
153   LifetimePosition end_;
162   UsePosition(LifetimePosition pos, LOperand* operand, LOperand* hint);
172   LifetimePosition pos() const { return pos_; }  in pos()
180   LifetimePosition const pos_;
214   UsePosition* NextUsePosition(LifetimePosition start);
219   UsePosition* NextRegisterPosition(LifetimePosition start);
224   UsePosition* NextUsePositionRegisterIsBeneficial(LifetimePosition start);
228   UsePosition* PreviousUsePositionRegisterIsBeneficial(LifetimePosition start);
231   bool CanBeSpilled(LifetimePosition pos);
237   void SplitAt(LifetimePosition position, LiveRange* result, Zone* zone);
256   LifetimePosition Start() const {  in Start()
261   LifetimePosition End() const {  in End()
275   bool CanCover(LifetimePosition position) const;
276   bool Covers(LifetimePosition position);
277   LifetimePosition FirstIntersection(LiveRange* other);
280   void EnsureInterval(LifetimePosition start,
281                       LifetimePosition end,
283   void AddUseInterval(LifetimePosition start,
284                       LifetimePosition end,
286   void AddUsePosition(LifetimePosition pos,
292   void ShortenTo(LifetimePosition start);
302   UseInterval* FirstSearchIntervalForPosition(LifetimePosition position) const;
304                                   LifetimePosition but_not_past) const;
410   void Define(LifetimePosition position, LOperand* operand, LOperand* hint);
411   void Use(LifetimePosition block_start,
412            LifetimePosition position,
443   LiveRange* SplitRangeAt(LiveRange* range, LifetimePosition pos);
447                           LifetimePosition start,
448                           LifetimePosition end);
453   LifetimePosition FindOptimalSplitPos(LifetimePosition start,
454                                        LifetimePosition end);
457   void SpillAfter(LiveRange* range, LifetimePosition pos);
461                     LifetimePosition start,
462                     LifetimePosition end);
467                          LifetimePosition start,
468                          LifetimePosition until,
469                          LifetimePosition end);
475   LifetimePosition FindOptimalSpillingPos(LiveRange* range,
476                                           LifetimePosition pos);
479   bool IsBlockBoundary(LifetimePosition pos);
490   LParallelMove* GetConnectingParallelMove(LifetimePosition pos);
493   HBasicBlock* GetBlock(LifetimePosition pos);
553   LifetimePosition allocation_finger_;