_mm_mask_mullo_epi64 in core::arch::x86_64 - Rust
Description: Multiply packed 64-bit integers in `a` and `b`, producing intermediate 128-bit integers, and store the low 64 bits of the intermediate integers in `dst` using writemask `k` (elements are copied from `src` if the corresponding bit is not set).

## _mm_mask_mullo_epi64

# Function _mm_mask_mullo_epi64

1.89.0 (const: unstable) · Source

    pub fn _mm_mask_mullo_epi64(
        src: __m128i,
        k: __mmask8,
        a: __m128i,
        b: __m128i,
    ) -> __m128i

Available on x86-64 and target feature `avx512dq` and target feature `avx512vl` only.
Expand description

Multiply packed 64-bit integers in `a` and `b`, producing intermediate 128-bit integers, and store the low 64 bits of the intermediate integers in `dst` using writemask `k` (elements are copied from `src` if the corresponding bit is not set).

Intel’s Documentation