I think that's what the SIMD instructions largely do. Like AVX-512 when talking about Skylake. A more direct interface to the "monster within". The monster got

I think that's what the SIMD instructions largely do. Like AVX-512 when talking about Skylake. A more direct interface to the "monster within". The monster got bigger, so there's a need to feed it with bigger chunks of work. µops are just an intermediary translation format. The point in JITting is to have the CPU translating the intent better to actual µops.