[dzaima]

If you want truly high-performance, architecture-generic SIMD won't get you particularly far though - the utter mess of things that x86-64 does and doesn't support is an utter mess, and doing things well across fixed-width and variable-width SIMD architectures will require compromises on one of those quite often. (not at all to say that it's impossible, it's just quite full of asterisks that I personally think is too much to bother standardizing)