crc_load_long
m0 = crc_clmul_prep(crc, crc_load_long(p));
m1 = crc_load_long(p + sizeof(unsigned long));
m0 = (LSB_CRC ? p1 ^ p3 : p0 ^ p2) ^ crc_load_long(p);
crc_load_long(p + sizeof(unsigned long));
crc = crc_clmul_update_long(crc, crc_load_long(p), consts);