Function _mm_testn_epi64_mask

#[target_feature(enable = "avx512f", enable = "avx512vl")]
pub const fn _mm_testn_epi64_mask(a: __m128i, b: __m128i) -> __mmask8

Compute the bitwise NAND of packed 64-bit integers in a and b, producing intermediate 64-bit values, and set the corresponding bit in result mask k if the intermediate value is zero.

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