Function safe_arch::cmp_eq_mask_m128d

#[must_use]pub fn cmp_eq_mask_m128d(a: m128d, b: m128d) -> m128d

This is supported with target feature sse2 only.

Lanewise a == b, mask output.

Mask output.

let a = m128d::from_array([1.0, 0.0]);
let b = m128d::from_array([1.0, 1.0]);
let c = cmp_eq_mask_m128d(a, b).to_bits();
assert_eq!(c, [u64::MAX, 0]);