Function safe_arch::permute_varying_m128

#[must_use]pub fn permute_varying_m128(a: m128, b: m128i) -> m128

This is supported with target feature avx only.

Permute with a runtime varying pattern.

let a = m128::from_array([0.0, 1.0, 2.0, 3.0]);
let b = m128i::from([0, 2, 3, 1]);
let c = permute_varying_m128(a, b).to_array();
assert_eq!(c, [0.0, 2.0, 3.0, 1.0]);