pub unsafe fn _mm512_mask_mullox_epi64(
    src: __m512i,
    k: u8,
    a: __m512i,
    b: __m512i
) -> __m512i
🔬This is a nightly-only experimental API. (stdsimd #48556)
Available on x86-64 only.
Expand description

Multiplies elements in packed 64-bit integer vectors a and b together, storing the lower 64 bits of the result in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

Intel’s documentation

This intrinsic generates a sequence of instructions, which may perform worse than a native instruction. Consider the performance impact of this intrinsic.