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I did a lot of experimentation with the Go1.26 experiment. It's easy to use and produces good code but only supports x86 ATM. (See https://andrewwphillips.github.io/blog/go1p26.html#simd-expe...)

I think there will be a "portable" wrapper that will also support other architectures (arm, riscv, even wasm) in the future based on the Highway C++ library.

Looks like that isn't a portable SIMD abstraction, but more similar to adding architecture-specific SIMD intrinsics support to go, with nicer syntax.

Sorry, I didn’t explicitly link to the issue for the portal layer.

Here is the issue discussing the portal simd package: https://github.com/golang/go/issues/78902

Also here is an example of some Go and the Asm code generated:

https://godbolt.org/z/n8hKhc7rY

(click the recompile button if you don't see the Asm code)