Function `_mm_mask_cmpeq_epi64_mask`

#[target_feature(enable = "avx512f", enable = "avx512vl")]
pub const fn _mm_mask_cmpeq_epi64_mask(k1: __mmask8, a: __m128i, b: __m128i) -> __mmask8

Compare packed 64-bit integers in a and b for equality, and store the results in mask vector k using zeromask k1 (elements are zeroed out when the corresponding mask bit is not set).

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