726               MachineInstr *DefMI = MRI->getVRegDef(MO->getReg());  in runOnMachineFunction()  local
727               if (DefMI && TII->isFoldableCopy(*DefMI)) {  in runOnMachineFunction()
728                 const MachineOperand &Def = DefMI->getOperand(0);  in runOnMachineFunction()
732                   const MachineOperand &Copied = DefMI->getOperand(1);  in runOnMachineFunction()
825       MachineInstr *DefMI = MRI->getVRegDef(MI.getOperand(I).getReg());  in processPHINode()  local
826       if (DefMI && DefMI->isPHI())  in processPHINode()
827         PHIOperands.insert(DefMI);  in processPHINode()
848   MachineInstr *DefMI = MRI->getVRegDef(MaybeVGPRConstMO.getReg());  in tryMoveVGPRConstToSGPR()  local
849   if (!DefMI || !DefMI->isMoveImmediate())  in tryMoveVGPRConstToSGPR()
852   MachineOperand *SrcConst = TII->getNamedOperand(*DefMI, AMDGPU::OpName::src0);  in tryMoveVGPRConstToSGPR()
864     DefMI->eraseFromParent();  in tryMoveVGPRConstToSGPR()