uword dl = round_pow2 (1 + i - l, 8);
v = _vec_resize (v, dl, (l + dl) * elt_bytes, sizeof (h[0]),
/* align */ sizeof (uword));
uword dl = round_pow2 (1 + i - l, 8);
v = _vec_resize (v, dl, (l + dl) * elt_bytes, sizeof (h[0]),
/* align */ sizeof (uword));