v.Fatalf("op %s doesn't have an int8 aux field", v.Op)
	}
	return int8(v.AuxInt)
}

func (v *Value) AuxUInt8() uint8 {
	if opcodeTable[v.Op].auxType != auxUInt8 {
		v.Fatalf("op %s doesn't have a uint8 aux field", v.Op)
	}
	return uint8(v.AuxInt)
}

func (v *Value) AuxInt16() int16 {
	if opcodeTable[v.Op].auxType != auxInt16 {

				}
				canHaveAuxInt = true
			case auxInt64, auxARM64BitField:
				canHaveAuxInt = true
			case auxInt128:
				// AuxInt must be zero, so leave canHaveAuxInt set to false.
			case auxUInt8:
				if v.AuxInt != int64(uint8(v.AuxInt)) {
					f.Fatalf("bad uint8 AuxInt value for %v", v)
				}
				canHaveAuxInt = true
			case auxFloat32:
				canHaveAuxInt = true
				if math.IsNaN(v.AuxFloat()) {

	auxInt32                  // auxInt is a 32-bit integer
	auxInt64                  // auxInt is a 64-bit integer
	auxInt128                 // auxInt represents a 128-bit integer.  Always 0.
	auxUInt8                  // auxInt is an 8-bit unsigned integer
	auxFloat32                // auxInt is a float32 (encoded with math.Float64bits)
	auxFloat64                // auxInt is a float64 (encoded with math.Float64bits)

		name:    "SLDconst",
		auxType: auxUInt8,
		argLen:  1,
		asm:     s390x.ASLD,
		reg: regInfo{
			inputs: []inputInfo{
				{0, 23551}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R11 R12 R14
			},
			outputs: []outputInfo{
				{0, 23551}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R11 R12 R14
			},
		},
	},
	{
		name:    "SLWconst",
		auxType: auxUInt8,
		argLen:  1,