Function safe_arch::unpack_low_i8_m128i

#[must_use]pub fn unpack_low_i8_m128i(a: m128i, b: m128i) -> m128i

This is supported with target feature sse2 only.

Unpack and interleave low i8 lanes of a and b.

let a =
  m128i::from([0_i8, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]);
let b = m128i::from([
  12_i8, 11, 22, 13, 99, 15, 16, 17, 8, 19, -20, 21, 22, -23, 24, 127,
]);
let c: [i8; 16] = unpack_low_i8_m128i(a, b).into();
assert_eq!(c, [0, 12, 1, 11, 2, 22, 3, 13, 4, 99, 5, 15, 6, 16, 7, 17]);