// threshold for now. This may change in the future.
			helperTable = makeSlicingBy8Table(tab)
		} else {
			break
		}
		// Update using slicing-by-8
		for len(p) > 8 {
			crc ^= byteorder.LeUint64(p)
			crc = helperTable[7][crc&0xff] ^
				helperTable[6][(crc>>8)&0xff] ^
				helperTable[5][(crc>>16)&0xff] ^
				helperTable[4][(crc>>24)&0xff] ^
				helperTable[3][(crc>>32)&0xff] ^
				helperTable[2][(crc>>40)&0xff] ^