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Re: sse{2,3,4.2}, altivec, neon, ...

Let me just mention in this thread the volk package. Vector Optimized Library of Kernels implements a high level set of DSP operations, with fast implementations chosen at runtime depending on available CPU SIMD instructions.

There is always a generic fallback implementation that runs on any CPU.

So a tool looking for special instructions will certainly find them in volk.


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