724               MachineInstr *DefMI = MRI->getVRegDef(MO->getReg());  in runOnMachineFunction()  local
725               if (DefMI && TII->isFoldableCopy(*DefMI)) {  in runOnMachineFunction()
726                 const MachineOperand &Def = DefMI->getOperand(0);  in runOnMachineFunction()
730                   const MachineOperand &Copied = DefMI->getOperand(1);  in runOnMachineFunction()
823       MachineInstr *DefMI = MRI->getVRegDef(MI.getOperand(I).getReg());  in processPHINode()  local
824       if (DefMI && DefMI->isPHI())  in processPHINode()
825         PHIOperands.insert(DefMI);  in processPHINode()
846   MachineInstr *DefMI = MRI->getVRegDef(MaybeVGPRConstMO.getReg());  in tryMoveVGPRConstToSGPR()  local
847   if (!DefMI || !DefMI->isMoveImmediate())  in tryMoveVGPRConstToSGPR()
850   MachineOperand *SrcConst = TII->getNamedOperand(*DefMI, AMDGPU::OpName::src0);  in tryMoveVGPRConstToSGPR()
862     DefMI->eraseFromParent();  in tryMoveVGPRConstToSGPR()