# Function core::arch::x86_64::_mm512_mullox_epi64

source ·

    pub unsafe fn _mm512_mullox_epi64(a: __m512i, b: __m512i) -> __m512i

🔬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.
Expand description

Multiplies elements in packed 64-bit integer vectors a and b together, storing the lower 64 bits of the result in dst.

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.