count_trailing_zeros
count_trailing_zeros (cnt_l, p.scale[i]);
count_trailing_zeros (cnt_l2, p.frac[i]);
count_trailing_zeros (cnt_l, p.frac[i]);
count_trailing_zeros (cnt_l, p.tmp[i]);
count_trailing_zeros (cnt_l, p.tmp[0]);
#if !defined (count_trailing_zeros)