mem := v_2
		v.reset(OpRISCV64LoweredAtomicAnd32)
		v0 := b.NewValue0(v.Pos, OpRISCV64ANDI, typ.Uintptr)
		v0.AuxInt = int64ToAuxInt(^3)
		v0.AddArg(ptr)
		v1 := b.NewValue0(v.Pos, OpRISCV64NOT, typ.UInt32)
		v2 := b.NewValue0(v.Pos, OpRISCV64SLL, typ.UInt32)
		v3 := b.NewValue0(v.Pos, OpRISCV64XORI, typ.UInt32)
		v3.AuxInt = int64ToAuxInt(0xff)
		v4 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
		v4.AddArg(val)
		v3.AddArg(v4)

		x := v_0
		y := v_1
		v.reset(OpLOONG64MASKEQZ)
		v0 := b.NewValue0(v.Pos, OpLOONG64SRLV, t)
		v1 := b.NewValue0(v.Pos, OpZeroExt16to64, typ.UInt64)
		v1.AddArg(x)
		v2 := b.NewValue0(v.Pos, OpZeroExt16to64, typ.UInt64)
		v2.AddArg(y)
		v0.AddArg2(v1, v2)
		v3 := b.NewValue0(v.Pos, OpLOONG64SGTU, typ.Bool)
		v4 := b.NewValue0(v.Pos, OpLOONG64MOVVconst, typ.UInt64)
		v4.AuxInt = int64ToAuxInt(64)