254     bool delayHasHazard(const MachineInstr &Candidate, RegDefsUses &RegDU,
261                      RegDefsUses &RegDU, InspectMemInstr &IM, Iter Slot,
289                      RegDefsUses &RegDU, bool &HasMultipleSuccs,
692                                       IterTy End, RegDefsUses &RegDU,  in searchRange()  argument
710       RegDU.update(*CurrI, 0, CurrI->getNumOperands());  in searchRange()
728     if (delayHasHazard(*CurrI, RegDU, IM))  in searchRange()
779   RegDefsUses RegDU(*Fn->getSubtarget().getRegisterInfo());  in searchBackward()  local
783   RegDU.init(Slot);  in searchBackward()
786   if (!searchRange(MBB, ++SlotI.getReverse(), MBB.rend(), RegDU, MemDU, Slot,  in searchBackward()
805   RegDefsUses RegDU(*MBB.getParent()->getSubtarget().getRegisterInfo());  in searchForward()  local
809   RegDU.setCallerSaved(*Slot);  in searchForward()
811   if (!searchRange(MBB, std::next(Slot), MBB.end(), RegDU, NM, Slot, Filler)) {  in searchForward()
833   RegDefsUses RegDU(*MBB.getParent()->getSubtarget().getRegisterInfo());  in searchSuccBBs()  local
842     if (!examinePred(*Pred, *SuccBB, RegDU, HasMultipleSuccs, BrMap))  in searchSuccBBs()
847   RegDU.setUnallocatableRegs(*Fn);  in searchSuccBBs()
858   if (!searchRange(MBB, SuccBB->begin(), SuccBB->end(), RegDU, *IM, Slot,  in searchSuccBBs()
924                                       RegDefsUses &RegDU,  in examinePred()  argument
938     RegDU.addLiveOut(Pred, Succ);  in examinePred()
946                                          RegDefsUses &RegDU,  in delayHasHazard()  argument
954   HasHazard |= RegDU.update(Candidate, 0, Candidate.getNumOperands());  in delayHasHazard()