Function safe_arch::blend_varying_m256

#[must_use]pub fn blend_varying_m256(a: m256, b: m256, mask: m256) -> m256

This is supported with target feature avx only.

Blend the lanes according to a runtime varying mask.

The sign bit of each lane in the mask value determines if the output lane uses a (mask non-negative) or b (mask negative).

let a = m256::from_array([0.0, 1.0, 2.0, 3.0, 8.0, 9.0, 10.0, 11.0]);
let b = m256::from_array([4.0, 5.0, 6.0, 7.0, -4.0, -5.0, -6.0, -7.0]);
let mask = m256::from_array([-1.0, 0.0, -1.0, 0.0, -1.0, -1.0, 0.0, 0.0]);
let c = blend_varying_m256(a, b, mask).to_array();
assert_eq!(c, [4.0, 1.0, 6.0, 3.0, -4.0, -5.0, 10.0, 11.0]);