[meling]

Curious if people here have looked at the upcoming SIMD support in Go: https://go.dev/doc/go1.26#simd

Currently experimental, but looks like the first Intel arch will arrive in the next release in about 3 months. They are also going to support a portable layer.

Wondering what people here think about the approach the Go team is taking; I think they would appreciate more eyeballs on their design. (I’m not competent in this space (yet))…

[aphillips801]

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.

[camel-cdr]

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

[meling]

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

[aphillips801]

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)