pub unsafe fn _mm256_srav_epi64(a: __m256i, count: __m256i) -> __m256i
🔬 This is a nightly-only experimental API. (stdsimd #48556)
Available on x86 and target feature avx512f,avx512vl only.
Expand description

Shift packed 64-bit integers in a right by the amount specified by the corresponding element in count while shifting in sign bits, and store the results in dst.

Intel’s documentation