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by jacobolus 3836 days ago
Existing Javascript JITs also don’t output SIMD instructions as far as I know.

I expect SIMD support can be added to wasm at some future date.

1 comments

I wasn't really referring to wasm vs JS (which is easy to outperform), but reaching equivalent speed to native, which is the ultimate goal, I'd hope. Otherwise you're just throwing performance away...

But, I was a little quick on the trigger. It's not obvious, but after drilling through the design docs for a half hour.. I found a tentative discussion of how SIMD might be added later (based on some kind extension mechanism).