[Libre-soc-dev] harmful SIMD again

[Luke Kenneth Casson Leighton]

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crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68

On Fri, Aug 20, 2021 at 3:34 AM Jacob Lifshay <programmerjake at gmail.com> wrote:
>
> On Thu, Aug 19, 2021 at 4:21 PM Luke Kenneth Casson Leighton
> <lkcl at lkcl.net> wrote:
> >
> > https://news.ycombinator.com/item?id=28114934
> > https://groups.google.com/g/comp.arch/c/GaA6ywyEyoo
> > https://news.ycombinator.com/item?id=28114934
>
> duplicate link :)

yeah i meant to put this one
https://www.reddit.com/r/programming/comments/p0yn45/three_fundamental_flaws_of_simd/

> I commented on the ycombinator thread about Rust's
> project-portable-simd, which I'm helping implement. We're figuring out
> fixed-length vectors first (since they're simpler and waay more
> common), we'll add support for variable-length vectors later.

that'll be interesting.  SVE2 is already in llvm so the concept of
variable-length vectors is alread in the LLVM-IR, in a basic form.

l.