36 class LifetimePosition {
40   static LifetimePosition FromInstructionIndex(int index) {  in FromInstructionIndex()
41     return LifetimePosition(index * kStep);  in FromInstructionIndex()
64   LifetimePosition InstructionStart() const {  in InstructionStart()
66     return LifetimePosition(value_ & ~(kStep - 1));  in InstructionStart()
71   LifetimePosition InstructionEnd() const {  in InstructionEnd()
73     return LifetimePosition(InstructionStart().Value() + kStep/2);  in InstructionEnd()
77   LifetimePosition NextInstruction() const {  in NextInstruction()
79     return LifetimePosition(InstructionStart().Value() + kStep);  in NextInstruction()
84   LifetimePosition PrevInstruction() const {  in PrevInstruction()
87     return LifetimePosition(InstructionStart().Value() - kStep);  in PrevInstruction()
92   LifetimePosition() : value_(-1) {}  in LifetimePosition()  function
98   static inline LifetimePosition Invalid() { return LifetimePosition(); }  in Invalid()
100   static inline LifetimePosition MaxPosition() {  in MaxPosition()
103     return LifetimePosition(kMaxInt);  in MaxPosition()
112   explicit LifetimePosition(int value) : value_(value) { }  in LifetimePosition()  function
121   UseInterval(LifetimePosition start, LifetimePosition end)  in UseInterval()
126   LifetimePosition start() const { return start_; }  in start()
127   LifetimePosition end() const { return end_; }  in end()
132   void SplitAt(LifetimePosition pos, Zone* zone);
136   LifetimePosition Intersect(const UseInterval* other) const {  in Intersect()
139     return LifetimePosition::Invalid();  in Intersect()
142   bool Contains(LifetimePosition point) const {  in Contains()
147   void set_start(LifetimePosition start) { start_ = start; }  in set_start()
150   LifetimePosition start_;
151   LifetimePosition end_;
160   UsePosition(LifetimePosition pos, LOperand* operand, LOperand* hint);
170   LifetimePosition pos() const { return pos_; }  in pos()
178   LifetimePosition const pos_;
212   UsePosition* NextUsePosition(LifetimePosition start);
217   UsePosition* NextRegisterPosition(LifetimePosition start);
222   UsePosition* NextUsePositionRegisterIsBeneficial(LifetimePosition start);
226   UsePosition* PreviousUsePositionRegisterIsBeneficial(LifetimePosition start);
229   bool CanBeSpilled(LifetimePosition pos);
235   void SplitAt(LifetimePosition position, LiveRange* result, Zone* zone);
254   LifetimePosition Start() const {  in Start()
259   LifetimePosition End() const {  in End()
273   bool CanCover(LifetimePosition position) const;
274   bool Covers(LifetimePosition position);
275   LifetimePosition FirstIntersection(LiveRange* other);
278   void EnsureInterval(LifetimePosition start,
279                       LifetimePosition end,
281   void AddUseInterval(LifetimePosition start,
282                       LifetimePosition end,
284   void AddUsePosition(LifetimePosition pos,
290   void ShortenTo(LifetimePosition start);
300   UseInterval* FirstSearchIntervalForPosition(LifetimePosition position) const;
302                                   LifetimePosition but_not_past) const;
408   void Define(LifetimePosition position, LOperand* operand, LOperand* hint);
409   void Use(LifetimePosition block_start,
410            LifetimePosition position,
441   LiveRange* SplitRangeAt(LiveRange* range, LifetimePosition pos);
445                           LifetimePosition start,
446                           LifetimePosition end);
451   LifetimePosition FindOptimalSplitPos(LifetimePosition start,
452                                        LifetimePosition end);
455   void SpillAfter(LiveRange* range, LifetimePosition pos);
459                     LifetimePosition start,
460                     LifetimePosition end);
465                          LifetimePosition start,
466                          LifetimePosition until,
467                          LifetimePosition end);
473   LifetimePosition FindOptimalSpillingPos(LiveRange* range,
474                                           LifetimePosition pos);
477   bool IsBlockBoundary(LifetimePosition pos);
488   LParallelMove* GetConnectingParallelMove(LifetimePosition pos);
491   HBasicBlock* GetBlock(LifetimePosition pos);
551   LifetimePosition allocation_finger_;