Function safe_arch::test_all_ones_m128i

pub fn test_all_ones_m128i(a: m128i) -> i32

Available with target feature sse4.1 only.

Tests if all bits are 1.

• Intrinsic: _mm_test_all_ones
• Assembly: pcmpeqd xmm, xmm / ptest xmm, xmm

let a = m128i::from(0_u128);
let b = m128i::from(u128::MAX);
assert_eq!(test_all_ones_m128i(a), 0);
assert_eq!(test_all_ones_m128i(b), 1);