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[tmil-25] Add fearless_simd block #141

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raphlinus merged 1 commit into from
Apr 22, 2026
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[tmil-25] Add fearless_simd block #141

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18 changes: 18 additions & 0 deletions content/blog/2026-04-19-tmil-25/index.md
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Expand Up @@ -107,6 +107,21 @@ A screenshot of Scrolled Quran.
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## Fearless SIMD

Fearless SIMD is our SIMD infrastructure library.
It provides a solid, portable way to write SIMD code that compiles to Wasm, AArch64, x86, and x86_64.

We released [fearless_simd 0.4.0], a large step towards the library being generally useful.
The major improvement is the use of AVX2 intrinsics on supported platforms.
That fulfills the vision of being able to write code that works efficiently in a variety of SIMD vector widths — 128 bit on Neon, and 256 bits on x86.

We are starting to see adoption outside Linebender, notably [PhastFT], a high performance FFT library.
Applications that can benefit from SIMD acceleration should consider fearless_simd, and we are open to feedback on how to improve it further.

There will be SIMD discussion at RustWeek, both as part of the Linebender unconference section and hopefully a session in the all-hands.
Get in touch if you'd be interested.

## Related ecosystem projects

There's a lot of interesting activity surrounding Linebender, including projects that use Linebender crates, and adjacent bits of infrastructure.
Expand Down Expand Up @@ -160,3 +175,6 @@ They are expected to continue in January, keep an eye on Zulip for details.
[Gosub engine]: https://gosub.io/
[drafft-ink]: https://github.com/PatWie/drafft-ink
[Takumi]: https://github.com/kane50613/takumi

[fearless_simd 0.4.0]: https://github.com/linebender/fearless_simd/releases/tag/v0.4.0
[PhastFT]: https://github.com/QuState/PhastFT
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