Add interleave() matching std::simd API, faster than zip_low/zip_high on AVX2#206
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Shnatsel wants to merge 11 commits intolinebender:mainfrom
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Add interleave() matching std::simd API, faster than zip_low/zip_high on AVX2#206Shnatsel wants to merge 11 commits intolinebender:mainfrom
interleave() matching std::simd API, faster than zip_low/zip_high on AVX2#206Shnatsel wants to merge 11 commits intolinebender:mainfrom
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Adds a new method with API matching std::simd's
interleavemethod.The primary motivation is performance: on AVX2,
zip_lowfollowed byzip_highrequires 6 instructions, while a combinedinterleavefunction only needs 4 instructions. (With AVX-512 we'd be able to to do it in 2 instructions on 256-bit vectors, but that's not supported by fearless_simd yet and #201 seems stalled).This also improves API compatibility with
std::simdas a nice bonus.AI use disclosure: this work was assisted by Claude Opus 4.5 for the initial commit and 4.6 for the rest. I have manually reviewed the code and take full responsibility for it.