251 class V8_EXPORT_PRIVATE UsePosition final
254   UsePosition(LifetimePosition pos, InstructionOperand* operand, void* hint,  in NON_EXPORTED_BASE()
268   UsePosition* next() const { return next_; }  in NON_EXPORTED_BASE()
269   void set_next(UsePosition* next) { next_ = next; }  in NON_EXPORTED_BASE()
281   void SetHint(UsePosition* use_pos);  in NON_EXPORTED_BASE()
282   void ResolveHint(UsePosition* use_pos);  in NON_EXPORTED_BASE()
296   UsePosition* next_;  in NON_EXPORTED_BASE()
300   DISALLOW_COPY_AND_ASSIGN(UsePosition);  in NON_EXPORTED_BASE()
314   UsePosition* first_pos() const { return first_pos_; }  in NON_EXPORTED_BASE()
346   UsePosition* NextUsePosition(LifetimePosition start) const;  in NON_EXPORTED_BASE()
350   UsePosition* NextRegisterPosition(LifetimePosition start) const;  in NON_EXPORTED_BASE()
353   UsePosition* NextSlotPosition(LifetimePosition start) const;  in NON_EXPORTED_BASE()
357   UsePosition* NextUsePositionRegisterIsBeneficial(  in NON_EXPORTED_BASE()
367   UsePosition* PreviousUsePositionRegisterIsBeneficial(  in NON_EXPORTED_BASE()
384   UsePosition* DetachAt(LifetimePosition position, LiveRange* result,  in NON_EXPORTED_BASE()
392   UsePosition* FirstHintPosition(int* register_index) const;  in NON_EXPORTED_BASE()
393   UsePosition* FirstHintPosition() const {  in NON_EXPORTED_BASE()
398   UsePosition* current_hint_position() const {  in NON_EXPORTED_BASE()
456   UsePosition* first_pos_;  in NON_EXPORTED_BASE()
462   mutable UsePosition* last_processed_use_;  in NON_EXPORTED_BASE()
464   mutable UsePosition* current_hint_position_;  in NON_EXPORTED_BASE()
466   mutable UsePosition* splitting_pointer_;  in NON_EXPORTED_BASE()
510   void AddUsePosition(UsePosition* pos);
669   UsePosition* last_pos_;
942   void MapPhiHint(InstructionOperand* operand, UsePosition* use_pos);
943   void ResolvePhiHint(InstructionOperand* operand, UsePosition* use_pos);
945   UsePosition* NewUsePosition(LifetimePosition pos, InstructionOperand* operand,
947   UsePosition* NewUsePosition(LifetimePosition pos) {  in NewUsePosition()
952   UsePosition* Define(LifetimePosition position, InstructionOperand* operand,
957   UsePosition* Use(LifetimePosition block_start, LifetimePosition position,
966   ZoneMap<InstructionOperand*, UsePosition*> phi_hints_;