val to_lanes : t -> lane list
val of_lanes : lane list -> t
val replace_lane : int -> t -> lane -> t
val bitmask : t -> Stdlib.Int32.t
val add_sat_s : t -> t -> t
val add_sat_u : t -> t -> t
val sub_sat_s : t -> t -> t
val sub_sat_u : t -> t -> t
val q15mulr_sat_s : t -> t -> t