Pathfinder 3 now has 64-bit ARM SIMD support, joining x86-64 and a scalar fallback: https://github.com/pcwalton/pathfinder/tree/pf3/simd … It’s wrapped up in a generic SIMD library that should be useful outside of PF too :)
ARM is nightly only, yeah. If you’re on stable, it automatically falls back to scalar.
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It’s definitely very rough right now. I had to go through LLVM TableGen for some stuff :( Feel free to use pathfinder_simd’s code so you don’t have to go through the same pain I did :)
End of conversation
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