164     const MachineInstr *Def;  member in __anon2f08fc220111::ValueTracker
215         : Def(&MI), DefIdx(DefIdx), DefSubReg(DefSubReg),  in ValueTracker()
217       assert(Def->getOperand(DefIdx).isDef() &&  in ValueTracker()
218              Def->getOperand(DefIdx).isReg() &&  in ValueTracker()
221       Reg = Def->getOperand(DefIdx).getReg();  in ValueTracker()
538   unsigned Def = MODef.getReg();  in optimizeCopyOrBitcast()  local
540   if (TargetRegisterInfo::isPhysicalRegister(Def))  in optimizeCopyOrBitcast()
543   const TargetRegisterClass *DefRC = MRI->getRegClass(Def);  in optimizeCopyOrBitcast()
581   unsigned NewVR = TargetRegisterInfo::isPhysicalRegister(Def) ? Def :  in optimizeCopyOrBitcast()
588   MRI->replaceRegWith(Def, NewVR);  in optimizeCopyOrBitcast()
786   assert(Def->isCopy() && "Invalid definition");  in getNextSourceFromCopy()
789   assert(Def->getDesc().getNumOperands() == 2 && "Invalid number of operands");  in getNextSourceFromCopy()
791   if (Def->getOperand(DefIdx).getSubReg() != DefSubReg)  in getNextSourceFromCopy()
797   SrcSubReg = Def->getOperand(SrcIdx).getSubReg();  in getNextSourceFromCopy()
803   assert(Def->isBitcast() && "Invalid definition");  in getNextSourceFromBitcast()
806   if (Def->hasUnmodeledSideEffects())  in getNextSourceFromBitcast()
810   if (Def->getDesc().getNumDefs() != 1)  in getNextSourceFromBitcast()
812   if (Def->getOperand(DefIdx).getSubReg() != DefSubReg)  in getNextSourceFromBitcast()
817   SrcIdx = Def->getDesc().getNumOperands();  in getNextSourceFromBitcast()
820     const MachineOperand &MO = Def->getOperand(OpIdx);  in getNextSourceFromBitcast()
829   SrcSubReg = Def->getOperand(SrcIdx).getSubReg();  in getNextSourceFromBitcast()
835   assert(Def->isRegSequence() && "Invalid definition");  in getNextSourceFromRegSequence()
837   if (Def->getOperand(DefIdx).getSubReg())  in getNextSourceFromRegSequence()
857   for (unsigned OpIdx = DefIdx + 1, EndOpIdx = Def->getNumOperands();  in getNextSourceFromRegSequence()
859     const MachineOperand &MOSubIdx = Def->getOperand(OpIdx + 1);  in getNextSourceFromRegSequence()
863       assert(Def->getOperand(OpIdx).isReg() &&  in getNextSourceFromRegSequence()
866       SrcSubReg = Def->getOperand(SrcIdx).getSubReg();  in getNextSourceFromRegSequence()
879   assert(Def->isInsertSubreg() && "Invalid definition");  in getNextSourceFromInsertSubreg()
880   if (Def->getOperand(DefIdx).getSubReg())  in getNextSourceFromInsertSubreg()
893   unsigned InsertedSubReg = Def->getOperand(3).getImm();  in getNextSourceFromInsertSubreg()
896     SrcSubReg = Def->getOperand(SrcIdx).getSubReg();  in getNextSourceFromInsertSubreg()
906   const MachineOperand &MODef = Def->getOperand(DefIdx);  in getNextSourceFromInsertSubreg()
907   const MachineOperand &MOBase = Def->getOperand(1);  in getNextSourceFromInsertSubreg()
931   assert(Def->isExtractSubreg() && "Invalid definition");  in getNextSourceFromExtractSubreg()
942   if (Def->getOperand(1).getSubReg())  in getNextSourceFromExtractSubreg()
946   SrcSubReg = Def->getOperand(2).getImm();  in getNextSourceFromExtractSubreg()
952   assert(Def->isSubregToReg() && "Invalid definition");  in getNextSourceFromSubregToReg()
960   if (DefSubReg != Def->getOperand(3).getImm())  in getNextSourceFromSubregToReg()
964   if (Def->getOperand(2).getSubReg())  in getNextSourceFromSubregToReg()
968   SrcSubReg = Def->getOperand(3).getImm();  in getNextSourceFromSubregToReg()
973   assert(Def && "This method needs a valid definition");  in getNextSourceImpl()
976       (DefIdx < Def->getDesc().getNumDefs() || Def->getDesc().isVariadic()) &&  in getNextSourceImpl()
977       Def->getOperand(DefIdx).isDef() && "Invalid DefIdx");  in getNextSourceImpl()
978   if (Def->isCopy())  in getNextSourceImpl()
980   if (Def->isBitcast())  in getNextSourceImpl()
986   if (Def->isRegSequence())  in getNextSourceImpl()
988   if (Def->isInsertSubreg())  in getNextSourceImpl()
990   if (Def->isExtractSubreg())  in getNextSourceImpl()
992   if (Def->isSubregToReg())  in getNextSourceImpl()
1001   if (!Def)  in getNextSource()
1009     const MachineOperand &MO = Def->getOperand(SrcIdx);  in getNextSource()
1014     PrevDef = Def;  in getNextSource()
1018       Def = MRI->getVRegDef(Reg);  in getNextSource()
1028   Def = nullptr;  in getNextSource()