}
		v.reset(OpTrunc32to16)
		v0 := b.NewValue0(v.Pos, OpRsh32Ux64, typ.UInt32)
		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
		v2.AuxInt = int32ToAuxInt(int32(1<<15 + (umagic16(c).m+1)/2))
		v3 := b.NewValue0(v.Pos, OpRsh32Ux64, typ.UInt32)
		v4 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
		v4.AddArg(x)
		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)

			if !(isPowerOfTwo64(c+1) && int32(c) >= 7) {
				continue
			}
			v.reset(OpARM64MOVWUreg)
			v0 := b.NewValue0(v.Pos, OpARM64NEG, x.Type)
			v1 := b.NewValue0(v.Pos, OpARM64ADDshiftLL, x.Type)
			v1.AuxInt = int64ToAuxInt(log64(c + 1))
			v2 := b.NewValue0(v.Pos, OpARM64NEG, x.Type)
			v2.AddArg(x)
			v1.AddArg2(v2, x)
			v0.AddArg(v1)
			v.AddArg(v0)
			return true
		}

		v.Aux = symToAux(dstSym)
		v0 := b.NewValue0(v_1.Pos, OpAMD64MOVQconst, typ.UInt64)
		v0.AuxInt = int64ToAuxInt(int64(read64(srcSym, int64(srcOff)+8, config.ctxt.Arch.ByteOrder)))
		v1 := b.NewValue0(v_1.Pos, OpAMD64MOVQstore, types.TypeMem)
		v1.AuxInt = int32ToAuxInt(dstOff)
		v1.Aux = symToAux(dstSym)
		v2 := b.NewValue0(v_1.Pos, OpAMD64MOVQconst, typ.UInt64)