Function _mm_srav_epi64

#[target_feature(enable = "avx512f", enable = "avx512vl")]
pub const fn _mm_srav_epi64(a: __m128i, count: __m128i) -> __m128i

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