Function vaddhn_high_s16 

pub fn vaddhn_high_s16(r: int8x8_t, a: int16x8_t, b: int16x8_t) -> int8x16_t

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

Available on (AArch64 or ARM64EC) and (AArch64 or ARM64EC or target feature v7) and (ARM or AArch64 or ARM64EC) and target feature neon and target feature v7 only.

Add returning High Narrow (high half). Arm’s documentation