Function vextq_p16 

pub fn vextq_p16(a: poly16x8_t, b: poly16x8_t, const N: i32) -> poly16x8_t

🔬This is a nightly-only experimental API. (stdarch_arm_neon_intrinsics #111800)

Available on ARM and target feature neon only.

Extract vector from pair of vectors Arm’s documentation