The SIMD ladder: the cycle map, portable BLAKE3, and the u64 ARX rotate - #268

Merged

AdaWorldAPI merged 11 commits into

claude/simd-ladder-plan

Jul 29, 2026

Commits on Jul 29, 2026

docs: the SIMD ladder plan, and the cycle map that orders it
claude
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e710766
blake3: in-tree portable core, measured; four review corrections
claude
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fb8aa81
fix: restore the missing_docs attribute my module declaration stole
claude
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fec25aa
blake3: array_chunks fast path -- operator's lead, measured (-21% at 2 KB)
claude
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1627b10
docs: separate the staging-copy term; one earlier guess was wrong
claude
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95b35e9
oracle: measure the 512-byte node as a default lane -- viable, zero spill
claude
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712a6a6
oracle: confirm the u64 rotate refusal is the OPERATION, not the idiom
claude
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7ff83e6
simd: U64x8 ARX rotate — the ladder's one earned intrinsic override
claude
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a83ab6b
docs(ladder): rung 6 built — and which backend actually got the intrinsic
claude
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5f4a571
blake3: state the chunk-length invariant where the fast path relies on it
claude
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6346c85
review: cover derive_key with the official vectors, fix a backwards timing doc
claude
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09903f8