Function core::arch::x86_64::_mm_mask_test_epi64_mask

pub unsafe fn _mm_mask_test_epi64_mask(
    k: __mmask8,
    a: __m128i,
    b: __m128i
) -> __mmask8

🔬 This is a nightly-only experimental API. (stdsimd #48556)

Available on x86-64 and target feature avx512f,avx512vl only.

Compute the bitwise AND of packed 64-bit integers in a and b, producing intermediate 64-bit values, and set the corresponding bit in result mask k (subject to writemask k) if the intermediate value is non-zero.

Intel’s documentation