3915     auto [Res, CarryOut, LHS, RHS] = MI.getFirst4Regs();  in lower()
3920     MIRBuilder.buildICmp(CmpInst::ICMP_ULT, CarryOut, NewRes, RHS);  in lower()
3928     auto [Res, CarryOut, LHS, RHS, CarryIn] = MI.getFirst5Regs();  in lower()
3929     const LLT CondTy = MRI.getType(CarryOut);  in lower()
3950     MIRBuilder.buildOr(CarryOut, Carry, Carry2);  in lower()
5941     Register CarryOut = MRI.createGenericVirtualRegister(LLT::scalar(1));  in narrowScalarAddSub()  local
5944       CarryOut = CarryDst;  in narrowScalarAddSub()
5947       MIRBuilder.buildInstr(OpO, {DstReg, CarryOut},  in narrowScalarAddSub()
5950       MIRBuilder.buildInstr(OpF, {DstReg, CarryOut},  in narrowScalarAddSub()
5953       MIRBuilder.buildInstr(OpE, {DstReg, CarryOut},  in narrowScalarAddSub()
5958     CarryIn = CarryOut;  in narrowScalarAddSub()