Function safe_arch::shr_all_u64_m128i

#[must_use]pub fn shr_all_u64_m128i(a: m128i, count: m128i) -> m128i

This is supported with target feature sse2 only.

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

New bits are 0s.

let a = m128i::from([1_u64, 56]);
let b = m128i::from([3_u64, 0]);
let c: [u64; 2] = shr_all_u64_m128i(a, b).into();
assert_eq!(c, [1 >> 3, 56 >> 3]);