pub unsafe fn _mm_maskz_slli_epi64<const IMM8: u32>(
    k: u8,
    a: __m128i
) -> __m128i
🔬This is a nightly-only experimental API. (stdsimd)
Available on x86-64 only.
Expand description

Shift packed 64-bit integers in a left by imm8 while shifting in zeros, and store the results in dst using zeromask k (elements are zeroed out when the corresponding mask bit is not set).

Intel’s documentation