crc_clmul_long
return crc_clmul_long(crc_clmul_prep(crc, msgpoly), consts);
return crc_clmul_long(msgpoly, consts);
return crc_clmul_long(msgpoly, consts) ^ (crc >> (8*len));
return crc_clmul_long(msgpoly, consts) ^ (crc << (8*len));
crc = crc_clmul_long(m0, consts);