Function safe_arch::shr_all_u16_m128i

#[must_use]pub fn shr_all_u16_m128i(a: m128i, count: m128i) -> m128i

This is supported with target feature sse2 only.

Shift each u16 lane to the right by the count in the lower u64 lane.

let a = m128i::from([1_u16, 2, 3, 4, 100, 200, 300, 400]);
let b = m128i::from([3_u64, 0]);
let c: [u16; 8] = shr_all_u16_m128i(a, b).into();
assert_eq!(
  c,
  [
    1_u16 >> 3,
    2 >> 3,
    3 >> 3,
    4 >> 3,
    100 >> 3,
    200 >> 3,
    300 >> 3,
    400 >> 3,
  ]
);