Function _mm256_mask_sllv_epi32
#[target_feature(enable = "avx512f", enable = "avx512vl")]
pub const fn _mm256_mask_sllv_epi32(src: __m256i, k: __mmask8, a: __m256i, count: __m256i) -> __m256iShift packed 32-bit integers in a left by the amount specified by the corresponding element in count while shifting in zeros, and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).