5190 LegalizerHelper::narrowScalarShiftByConstant(MachineInstr &MI, const APInt &Amt,  in narrowScalarShiftByConstant()  argument
5197   if (Amt.isZero()) {  in narrowScalarShiftByConstant()
5209     if (Amt.ugt(VTBits)) {  in narrowScalarShiftByConstant()
5211     } else if (Amt.ugt(NVTBits)) {  in narrowScalarShiftByConstant()
5214                                MIRBuilder.buildConstant(AmtTy, Amt - NVTBits));  in narrowScalarShiftByConstant()
5215     } else if (Amt == NVTBits) {  in narrowScalarShiftByConstant()
5219       Lo = MIRBuilder.buildShl(NVT, InL, MIRBuilder.buildConstant(AmtTy, Amt));  in narrowScalarShiftByConstant()
5221           MIRBuilder.buildShl(NVT, InH, MIRBuilder.buildConstant(AmtTy, Amt));  in narrowScalarShiftByConstant()
5223           NVT, InL, MIRBuilder.buildConstant(AmtTy, -Amt + NVTBits));  in narrowScalarShiftByConstant()
5227     if (Amt.ugt(VTBits)) {  in narrowScalarShiftByConstant()
5229     } else if (Amt.ugt(NVTBits)) {  in narrowScalarShiftByConstant()
5231                                 MIRBuilder.buildConstant(AmtTy, Amt - NVTBits));  in narrowScalarShiftByConstant()
5233     } else if (Amt == NVTBits) {  in narrowScalarShiftByConstant()
5237       auto ShiftAmtConst = MIRBuilder.buildConstant(AmtTy, Amt);  in narrowScalarShiftByConstant()
5241           NVT, InH, MIRBuilder.buildConstant(AmtTy, -Amt + NVTBits));  in narrowScalarShiftByConstant()
5247     if (Amt.ugt(VTBits)) {  in narrowScalarShiftByConstant()
5250     } else if (Amt.ugt(NVTBits)) {  in narrowScalarShiftByConstant()
5252                                 MIRBuilder.buildConstant(AmtTy, Amt - NVTBits));  in narrowScalarShiftByConstant()
5255     } else if (Amt == NVTBits) {  in narrowScalarShiftByConstant()
5260       auto ShiftAmtConst = MIRBuilder.buildConstant(AmtTy, Amt);  in narrowScalarShiftByConstant()
5264           NVT, InH, MIRBuilder.buildConstant(AmtTy, -Amt + NVTBits));  in narrowScalarShiftByConstant()
5293   Register Amt = MI.getOperand(2).getReg();  in narrowScalarShift()  local
5294   LLT ShiftAmtTy = MRI.getType(Amt);  in narrowScalarShift()
5306   if (auto VRegAndVal = getIConstantVRegValWithLookThrough(Amt, MRI)) {  in narrowScalarShift()
5320   auto AmtExcess = MIRBuilder.buildSub(ShiftAmtTy, Amt, NewBits);  in narrowScalarShift()
5321   auto AmtLack = MIRBuilder.buildSub(ShiftAmtTy, NewBits, Amt);  in narrowScalarShift()
5324   auto IsShort = MIRBuilder.buildICmp(ICmpInst::ICMP_ULT, CondTy, Amt, NewBits);  in narrowScalarShift()
5325   auto IsZero = MIRBuilder.buildICmp(ICmpInst::ICMP_EQ, CondTy, Amt, Zero);  in narrowScalarShift()
5331     auto LoS = MIRBuilder.buildShl(HalfTy, InL, Amt);  in narrowScalarShift()
5334     auto HiOr = MIRBuilder.buildShl(HalfTy, InH, Amt);  in narrowScalarShift()
5352     auto HiS = MIRBuilder.buildInstr(MI.getOpcode(), {HalfTy}, {InH, Amt});  in narrowScalarShift()
5354     auto LoOr = MIRBuilder.buildLShr(HalfTy, InL, Amt);  in narrowScalarShift()
6802   auto [Dst, DstTy, Src, SrcTy, Amt, AmtTy] = MI.getFirst3RegLLTs();  in lowerRotateWithReverseRotate()
6806   auto Neg = MIRBuilder.buildSub(AmtTy, Zero, Amt);  in lowerRotateWithReverseRotate()
6813   auto [Dst, DstTy, Src, SrcTy, Amt, AmtTy] = MI.getFirst3RegLLTs();  in lowerRotate()
6840       return buildFunnelShift(FShOpc, Dst, Src, Amt);  in lowerRotate()
6842       Amt = MIRBuilder.buildNeg(DstTy, Amt).getReg(0);  in lowerRotate()
6843       return buildFunnelShift(RevFsh, Dst, Src, Amt);  in lowerRotate()
6856     auto NegAmt = MIRBuilder.buildSub(AmtTy, Zero, Amt);  in lowerRotate()
6857     auto ShAmt = MIRBuilder.buildAnd(AmtTy, Amt, BitWidthMinusOneC);  in lowerRotate()
6866     auto ShAmt = MIRBuilder.buildURem(AmtTy, Amt, BitWidthC);  in lowerRotate()