pub fn _mm_mask_permutex2var_ps(
    a: __m128,
    k: u8,
    idx: __m128i,
    b: __m128,
) -> __m128Expand description
Shuffle single-precision (32-bit) floating-point elements in a and b across lanes using the corresponding selector and index in idx, and store the results in dst using writemask k (elements are copied from a when the corresponding mask bit is not set).