139 struct WorkItem {  struct
143   WorkItem() = default;
144   WorkItem(MachineBasicBlock *MBB) : MBB(MBB) {}  in WorkItem()  function
145   WorkItem(MachineInstr *MI) : MI(MI) {}  in WorkItem()  function
171                        std::vector<WorkItem> &Worklist);
173                 unsigned SubReg, char Flag, std::vector<WorkItem> &Worklist);
175                            std::vector<WorkItem> &Worklist);
176   char scanInstructions(MachineFunction &MF, std::vector<WorkItem> &Worklist);
177   void propagateInstruction(MachineInstr &MI, std::vector<WorkItem> &Worklist);
178   void propagateBlock(MachineBasicBlock &MBB, std::vector<WorkItem> &Worklist);
257                                       std::vector<WorkItem> &Worklist) {  in markInstruction()
282                                std::vector<WorkItem> &Worklist) {  in markDefs()
338                                           std::vector<WorkItem> &Worklist) {  in markInstructionUses()
391                                        std::vector<WorkItem> &Worklist) {  in scanInstructions()
507                                            std::vector<WorkItem>& Worklist) {  in propagateInstruction()
554                                      std::vector<WorkItem>& Worklist) {  in propagateBlock()
590   std::vector<WorkItem> Worklist;  in analyzeFunction()
594     WorkItem WI = Worklist.back();  in analyzeFunction()