Lines Matching refs:Def
210 MachineInstr *Def = Op->getParent();
214 if (DeadInstr.find(Def) != DeadInstr.end())
221 for (unsigned int j = 0; j < Def->getNumOperands(); ++j) {
222 MachineOperand &MODef = Def->getOperand(j);
234 if (&*II == Def)
245 DEBUG(dbgs() << "Deleting instruction " << *Def << "\n");
246 DeadInstr.insert(Def);
315 MachineInstr *Def = MRI->getVRegDef(OpReg);
316 if (!Def)
318 if (Def->isImplicitDef())
359 MachineInstr *Def = MRI->getVRegDef(MI->getOperand(1).getReg());
360 if (!Def)
362 return elideCopies(Def);
620 // Follow the def-use chain for this DPR through COPYs, and also through
627 MachineInstr *Def = MRI->getVRegDef(*I);
628 if (!Def)
631 elideCopiesAndPHIs(Def, DefSrcs);
646 // Collect all the uses of this MI's DPR def for updating later.
