757   MachineInstr *DefMI = LIS->getInstructionFromIndex(AValNo->def);  in removeCopyByCommutingDef()  local
758   if (!DefMI)  in removeCopyByCommutingDef()
760   if (!DefMI->isCommutable())  in removeCopyByCommutingDef()
764   int DefIdx = DefMI->findRegisterDefOperandIdx(IntA.reg);  in removeCopyByCommutingDef()
767   if (!DefMI->isRegTiedToUseOperand(DefIdx, &UseOpIdx))  in removeCopyByCommutingDef()
780   if (!TII->findCommutedOpIndices(*DefMI, UseOpIdx, NewDstIdx))  in removeCopyByCommutingDef()
783   MachineOperand &NewDstMO = DefMI->getOperand(NewDstIdx);  in removeCopyByCommutingDef()
808                     << *DefMI);  in removeCopyByCommutingDef()
812   MachineBasicBlock *MBB = DefMI->getParent();  in removeCopyByCommutingDef()
814       TII->commuteInstruction(*DefMI, false, UseOpIdx, NewDstIdx);  in removeCopyByCommutingDef()
821   if (NewMI != DefMI) {  in removeCopyByCommutingDef()
822     LIS->ReplaceMachineInstrInMaps(*DefMI, *NewMI);  in removeCopyByCommutingDef()
823     MachineBasicBlock::iterator Pos = DefMI;  in removeCopyByCommutingDef()
825     MBB->erase(DefMI);  in removeCopyByCommutingDef()
1030     MachineInstr *DefMI = LIS->getInstructionFromIndex(PVal->def);  in removePartialRedundancy()  local
1031     if (!DefMI || !DefMI->isFullCopy()) {  in removePartialRedundancy()
1036     if (DefMI->getOperand(0).getReg() != IntA.reg ||  in removePartialRedundancy()
1037         DefMI->getOperand(1).getReg() != IntB.reg ||  in removePartialRedundancy()
1038         DefMI->getParent() != Pred) {  in removePartialRedundancy()
1192   MachineInstr *DefMI = LIS->getInstructionFromIndex(ValNo->def);  in reMaterializeTrivialDef()  local
1193   if (!DefMI)  in reMaterializeTrivialDef()
1195   if (DefMI->isCopyLike()) {  in reMaterializeTrivialDef()
1199   if (!TII->isAsCheapAsAMove(*DefMI))  in reMaterializeTrivialDef()
1201   if (!TII->isTriviallyReMaterializable(*DefMI, AA))  in reMaterializeTrivialDef()
1203   if (!definesFullReg(*DefMI, SrcReg))  in reMaterializeTrivialDef()
1206   if (!DefMI->isSafeToMove(AA, SawStore))  in reMaterializeTrivialDef()
1208   const MCInstrDesc &MCID = DefMI->getDesc();  in reMaterializeTrivialDef()
1226   if (!DefMI->isImplicitDef()) {  in reMaterializeTrivialDef()
1231                                               DefMI->getOperand(0).getSubReg());  in reMaterializeTrivialDef()
1251   TII->reMaterialize(*MBB, MII, DstReg, SrcIdx, *DefMI, *TRI);  in reMaterializeTrivialDef()
2252   LaneBitmask computeWriteLanes(const MachineInstr *DefMI, bool &Redef) const;
2359 LaneBitmask JoinVals::computeWriteLanes(const MachineInstr *DefMI, bool &Redef)  in computeWriteLanes()  argument
2362   for (const MachineOperand &MO : DefMI->operands()) {  in computeWriteLanes()
2461   const MachineInstr *DefMI = nullptr;  in analyzeValue()  local
2468     DefMI = Indexes->getInstructionFromIndex(VNI->def);  in analyzeValue()
2469     assert(DefMI != nullptr);  in analyzeValue()
2473       if (DefMI->isImplicitDef()) {  in analyzeValue()
2479       V.ValidLanes = V.WriteLanes = computeWriteLanes(DefMI, Redef);  in analyzeValue()
2507       if (DefMI->isImplicitDef()) {  in analyzeValue()
2577     if (DefMI &&  in analyzeValue()
2578         DefMI->getParent() != Indexes->getMBBFromIndex(V.OtherVNI->def)) {  in analyzeValue()
2581                  << printMBBReference(*DefMI->getParent())  in analyzeValue()
2596   if (DefMI->isImplicitDef()) {  in analyzeValue()
2607   if (CP.isCoalescable(DefMI)) {  in analyzeValue()
2624   if (DefMI->isFullCopy() && !CP.isPartial() &&  in analyzeValue()