mpz_fdiv_q_2exp   172 lib/mini-gmp.h void mpz_fdiv_q_2exp (mpz_t, const mpz_t, mp_bitcnt_t);
mpz_fdiv_q_2exp  3525 src/data.c           mpz_fdiv_q_2exp (mpz[0], *zval, - XFIXNUM (count));
mpz_fdiv_q_2exp   483 src/timefns.c    mpz_fdiv_q_2exp (mpz[0], mpz[0], LO_TIME_BITS);