Function vcopyq_lane_p16

pub unsafe fn vcopyq_lane_p16(
    a: poly16x8_t,
    const LANE1: i32,
    b: poly16x4_t,
    const LANE2: i32,
) -> poly16x8_t

Available on (AArch64 or target_arch="arm64ec") and target feature neon only.

Insert vector element from another vector element

Arm’s documentation