204       MachineInstr *Def = Op->getParent();  in eraseInstrWithNoUses()  local
208       if (DeadInstr.find(Def) != DeadInstr.end())  in eraseInstrWithNoUses()
215       for (unsigned int j = 0; j < Def->getNumOperands(); ++j) {  in eraseInstrWithNoUses()
216         MachineOperand &MODef = Def->getOperand(j);  in eraseInstrWithNoUses()
228           if (&*II == Def)  in eraseInstrWithNoUses()
239       DEBUG(dbgs() << "Deleting instruction " << *Def << "\n");  in eraseInstrWithNoUses()
240       DeadInstr.insert(Def);  in eraseInstrWithNoUses()
309       MachineInstr *Def = MRI->getVRegDef(OpReg);  in optimizeSDPattern()  local
310       if (!Def)  in optimizeSDPattern()
312       if (Def->isImplicitDef())  in optimizeSDPattern()
352   MachineInstr *Def = MRI->getVRegDef(MI->getOperand(1).getReg());  in elideCopies()  local
353   if (!Def)  in elideCopies()
355   return elideCopies(Def);  in elideCopies()
626     MachineInstr *Def = MRI->getVRegDef(*I);  in runOnInstruction()  local
627     if (!Def)  in runOnInstruction()
630     elideCopiesAndPHIs(Def, DefSrcs);  in runOnInstruction()