Function safe_arch::sub_saturating_i8_m128i

#[must_use]pub fn sub_saturating_i8_m128i(a: m128i, b: m128i) -> m128i

This is supported with target feature sse2 only.

Lanewise saturating a - b with lanes as i8.

let a =
  m128i::from([0_i8, -128, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, -127]);
let b = m128i::from([
  0_i8, 1, 2, 13, 4, 15, 6, 17, 8, 19, -20, 21, 22, -23, 24, 127,
]);
let c: [i8; 16] = sub_saturating_i8_m128i(a, b).into();
assert_eq!(
  c,
  [0, -128, 0, -10, 0, -10, 0, -10, 0, -10, 30, -10, -10, 36, -10, -128]
);