Function _kortest_mask64_u8

#[target_feature(enable = "avx512bw")]
pub const unsafe fn _kortest_mask64_u8(a: __mmask64, b: __mmask64, all_ones: *mut u8) -> u8

Compute the bitwise OR of 64-bit masks a and b. If the result is all zeros, store 1 in dst, otherwise store 0 in dst. If the result is all ones, store 1 in all_ones, otherwise store 0 in all_ones.

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