112   UsePosition(HInstruction* user, size_t input_index, size_t position)  in UsePosition()  argument
114         input_index_(input_index),  in UsePosition()
168                  size_t input_index,  in EnvUsePosition()  argument
171         input_index_(input_index),  in EnvUsePosition()
315               size_t input_index,
326       if (locations->IsFixedInput(input_index) || locations->OutputUsesSameAs(input_index)) {
333       } else if (!locations->InAt(input_index).IsValid()) {
355       UsePosition* new_use = new (allocator_) UsePosition(instruction, input_index, position);
366           new (allocator_) EnvUsePosition(environment, input_index, position);
370       UsePosition* new_use = new (allocator_) UsePosition(instruction, input_index, position);
398   void AddPhiUse(HInstruction* instruction, size_t input_index, HBasicBlock* block) {  in AddPhiUse()  argument
404         new (allocator_) UsePosition(instruction, input_index, block->GetLifetimeEnd());  in AddPhiUse()