206       MachineInstr *Def = Op->getParent();  in eraseInstrWithNoUses()  local
210       if (DeadInstr.find(Def) != DeadInstr.end())  in eraseInstrWithNoUses()
217       for (unsigned int j = 0; j < Def->getNumOperands(); ++j) {  in eraseInstrWithNoUses()
218         MachineOperand &MODef = Def->getOperand(j);  in eraseInstrWithNoUses()
230           if (&*II == Def)  in eraseInstrWithNoUses()
241       DEBUG(dbgs() << "Deleting instruction " << *Def << "\n");  in eraseInstrWithNoUses()
242       DeadInstr.insert(Def);  in eraseInstrWithNoUses()
311       MachineInstr *Def = MRI->getVRegDef(OpReg);  in optimizeSDPattern()  local
312       if (!Def)  in optimizeSDPattern()
314       if (Def->isImplicitDef())  in optimizeSDPattern()
354   MachineInstr *Def = MRI->getVRegDef(MI->getOperand(1).getReg());  in elideCopies()  local
355   if (!Def)  in elideCopies()
357   return elideCopies(Def);  in elideCopies()
620     MachineInstr *Def = MRI->getVRegDef(*I);  in runOnInstruction()  local
621     if (!Def)  in runOnInstruction()
624     elideCopiesAndPHIs(Def, DefSrcs);  in runOnInstruction()