255 class V8_EXPORT_PRIVATE UsePosition final
258   UsePosition(LifetimePosition pos, InstructionOperand* operand, void* hint,  in NON_EXPORTED_BASE()
272   UsePosition* next() const { return next_; }  in NON_EXPORTED_BASE()
273   void set_next(UsePosition* next) { next_ = next; }  in NON_EXPORTED_BASE()
285   void SetHint(UsePosition* use_pos);  in NON_EXPORTED_BASE()
286   void ResolveHint(UsePosition* use_pos);  in NON_EXPORTED_BASE()
300   UsePosition* next_;  in NON_EXPORTED_BASE()
304   DISALLOW_COPY_AND_ASSIGN(UsePosition);  in NON_EXPORTED_BASE()
317   UsePosition* first_pos() const { return first_pos_; }  in NON_EXPORTED_BASE()
349   UsePosition* NextUsePosition(LifetimePosition start) const;  in NON_EXPORTED_BASE()
353   UsePosition* NextRegisterPosition(LifetimePosition start) const;  in NON_EXPORTED_BASE()
356   UsePosition* NextSlotPosition(LifetimePosition start) const;  in NON_EXPORTED_BASE()
360   UsePosition* NextUsePositionRegisterIsBeneficial(  in NON_EXPORTED_BASE()
370   UsePosition* PreviousUsePositionRegisterIsBeneficial(  in NON_EXPORTED_BASE()
387   UsePosition* DetachAt(LifetimePosition position, LiveRange* result,  in NON_EXPORTED_BASE()
395   UsePosition* FirstHintPosition(int* register_index) const;  in NON_EXPORTED_BASE()
396   UsePosition* FirstHintPosition() const {  in NON_EXPORTED_BASE()
401   UsePosition* current_hint_position() const {  in NON_EXPORTED_BASE()
459   UsePosition* first_pos_;  in NON_EXPORTED_BASE()
465   mutable UsePosition* last_processed_use_;  in NON_EXPORTED_BASE()
467   mutable UsePosition* current_hint_position_;  in NON_EXPORTED_BASE()
469   mutable UsePosition* splitting_pointer_;  in NON_EXPORTED_BASE()
498   void AddUsePosition(UsePosition* pos);
657   UsePosition* last_pos_;
930   void MapPhiHint(InstructionOperand* operand, UsePosition* use_pos);
931   void ResolvePhiHint(InstructionOperand* operand, UsePosition* use_pos);
933   UsePosition* NewUsePosition(LifetimePosition pos, InstructionOperand* operand,
935   UsePosition* NewUsePosition(LifetimePosition pos) {  in NewUsePosition()
940   UsePosition* Define(LifetimePosition position, InstructionOperand* operand,
945   UsePosition* Use(LifetimePosition block_start, LifetimePosition position,
954   ZoneMap<InstructionOperand*, UsePosition*> phi_hints_;