🔬This is a nightly-only experimental API. (
Available on (x86 or x86-64) and target feature
avx512f,avx512vl and x86-64 only.
Rotate the bits in each packed 64-bit integer in a to the left by the number of bits specified in imm8, and store the results in dst using zeromask k (elements are zeroed out when the corresponding mask bit is not set).