🔬This is a nightly-only experimental API. (
Available on (x86 or x86-64) and target feature
avx512f,avx512vl and x86-64 only.
Multiply the low signed 32-bit integers from each packed 64-bit element in a and b, and store the signed 64-bit results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).