554   MachineOperand &UseOp = UseMI->getOperand(UseOpIdx);  in tryToFoldACImm()  local
555   if (!UseOp.getSubReg() && Def && TII->isFoldableCopy(*Def)) {  in tryToFoldACImm()
597   const MachineOperand &UseOp = UseMI->getOperand(UseOpIdx);  in foldOperand()  local
599   if (!isUseSafeToFold(TII, *UseMI, UseOp))  in foldOperand()
603   if (UseOp.isReg() && OpToFold.isReg()) {  in foldOperand()
604     if (UseOp.isImplicit() || UseOp.getSubReg() != AMDGPU::NoSubRegister)  in foldOperand()
885         UseOp.isImplicit() ||  in foldOperand()
921   if (UseOp.getSubReg() && AMDGPU::getRegBitWidth(FoldRC->getID()) == 64) {  in foldOperand()
922     Register UseReg = UseOp.getReg();  in foldOperand()
929     if (UseOp.getSubReg() == AMDGPU::sub0) {  in foldOperand()
932       assert(UseOp.getSubReg() == AMDGPU::sub1);  in foldOperand()