Function vrshrn_n_s16 

pub fn vrshrn_n_s16(a: int16x8_t, const N: i32) -> int8x8_t

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

Available on (AArch64 or target_arch=arm64ec) and ARM and target feature neon and target feature v7 only.

Rounding shift right narrow Arm’s documentation