alt Hacker NewsIt should really be read/advertised as "portabler SIMD". It beats hoping the compiler autovectorizes everything well forever or writing architecture specific code manually again but is going to compromise on average performance vs platform specific SIMD.
.NET and Java have three levels of SIMD support, Go's ongoing efforts, and does the upcoming C++ standard.
Autovectorization, depending on compiler's cleverness, really portable SIMD operations, and then the CPU specific SIMD ones.
So this should be perfectly doable in crate that advertises as portable, while leaving the non portable stuff to another crate.