Function _mm256_permutevar_pd

pub unsafe fn _mm256_permutevar_pd(a: __m256d, b: __m256i) -> __m256d

Available on (x86 or x86-64) and target feature avx and x86 only.

Shuffles double-precision (64-bit) floating-point elements in a within 256-bit lanes using the control in b.

Intel’s documentation