Function _mm512_testn_epi64_mask

pub unsafe fn _mm512_testn_epi64_mask(a: __m512i, b: __m512i) -> __mmask8

🔬This is a nightly-only experimental API. (stdarch_x86_avx512 #111137)

Available on (x86 or x86-64) and target feature avx512f and x86-64 only.

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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