179           MCRegister Def = CopyOperands->Destination->getReg().asMCReg();  in clobberRegister()  local
182           markRegsUnavailable(Def, TRI);  in clobberRegister()
203                 if (*itr == Def) {  in clobberRegister()
233     MCRegister Def = CopyOperands->Destination->getReg().asMCReg();  in trackCopy()  local
236     for (MCRegUnit Unit : TRI.regunits(Def))  in trackCopy()
244       if (!is_contained(Copy.DefRegs, Def))  in trackCopy()
245         Copy.DefRegs.push_back(Def);  in trackCopy()
349     Register Def = CopyOperands->Destination->getReg();  in findLastSeenDefInCopy()  local
350     if (!TRI.isSubRegisterEq(Def, Reg))  in findLastSeenDefInCopy()
358           if (MO.clobbersPhysReg(Def)) {  in findLastSeenDefInCopy()
360                               << printReg(Def, &TRI) << "\n");  in findLastSeenDefInCopy()
417   bool eraseIfRedundant(MachineInstr &Copy, MCRegister Src, MCRegister Def);
427                                  const MachineOperand &MODef, Register Def);
473                       MCRegister Def, const TargetRegisterInfo *TRI,  in isNopCopy()  argument
480   if (Src == PreviousSrc && Def == PreviousDef)  in isNopCopy()
485   return SubIdx == TRI->getSubRegIndex(PreviousDef, Def);  in isNopCopy()
492                                               MCRegister Src, MCRegister Def) {  in eraseIfRedundant()  argument
495   if (MRI->isReserved(Src) || MRI->isReserved(Def))  in eraseIfRedundant()
500       Tracker.findAvailCopy(Copy, Def, *TRI, *TII, UseCopyInstr);  in eraseIfRedundant()
508   if (!isNopCopy(*PrevCopy, Src, Def, TRI, TII, UseCopyInstr))  in eraseIfRedundant()
520   assert(CopyDef == Src || CopyDef == Def);  in eraseIfRedundant()
541   Register Def = CopyOperands->Destination->getReg();  in isBackwardPropagatableRegClassCopy()  local
545     return URC->contains(Def);  in isBackwardPropagatableRegClassCopy()
642     const MachineInstr &MI, const MachineOperand &MODef, Register Def) {  in hasOverlappingMultipleDef()  argument
645         TRI->regsOverlap(Def, MIDef.getReg()))  in hasOverlappingMultipleDef()
773         MCRegister Def = RegDef.asMCReg();  in ForwardCopyPropagateBlock()  local
791         if (eraseIfRedundant(MI, Def, Src) || eraseIfRedundant(MI, Src, Def))  in ForwardCopyPropagateBlock()
815         if (!MRI->isReserved(Def))  in ForwardCopyPropagateBlock()
825         Tracker.clobberRegister(Def, *TRI, *TII, UseCopyInstr);  in ForwardCopyPropagateBlock()
953   Register Def = CopyOperands.Destination->getReg();  in isBackwardPropagatableCopy()  local
956   if (!Def || !Src)  in isBackwardPropagatableCopy()
959   if (MRI.isReserved(Def) || MRI.isReserved(Src))  in isBackwardPropagatableCopy()
994     Register Def = CopyOperands->Destination->getReg();  in propagateDefs()  local
1006     if (hasOverlappingMultipleDef(MI, MODef, Def))  in propagateDefs()
1010                       << "\n     with " << printReg(Def, TRI) << "\n     in "  in propagateDefs()
1013     MODef.setReg(Def);  in propagateDefs()
1093     Register Def = CopyOperands->Destination->getReg();  in BackwardCopyPropagateBlock()  local
1097     MRI->updateDbgUsersToReg(Src.asMCReg(), Def.asMCReg(), MaybeDeadDbgUsers);  in BackwardCopyPropagateBlock()
1196         auto CheckCopyConstraint = [this](Register Def, Register Src) {  in EliminateSpillageCopies()  argument
1198             if (RC->contains(Def) && RC->contains(Src))  in EliminateSpillageCopies()
1248     Register Def = CopyOperands->Destination->getReg();  in EliminateSpillageCopies()  local
1249     return Src && Def && !TRI->regsOverlap(Src, Def) &&  in EliminateSpillageCopies()
1323     Register Def = CopyOperands->Destination->getReg();  in EliminateSpillageCopies()  local
1367           Tracker.findLastSeenUseInCopy(Def.asMCReg(), *TRI);  in EliminateSpillageCopies()