[apaprocki]

Many compilers and runtimes support them just fine. CPUs don’t really support them, with the exception of POWER. The dirty little secret (use case measurement), however, is that Intel’s software library on x86-64 is faster than POWER’s instructions. I don’t believe there is any roadmap (e.g., 5 years out) to add hardware support mainly because customers don’t need them or want them (globally speaking) and software is fast enough for majority of use cases.