Function _mm_permutex2var_pd

#[target_feature(enable = "avx512f", enable = "avx512vl")]
pub fn _mm_permutex2var_pd(a: __m128d, idx: __m128i, b: __m128d) -> __m128d

Shuffle double-precision (64-bit) floating-point elements in a and b across lanes using the corresponding selector and index in idx, and store the results in dst.

Intel's documentation