docs: record omitted old-build parity decisions - #14
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Add a living parity reference for behavior-changing commits that existed in the previous ROCmFPX-derived working branch but were intentionally not carried into the current fork. For each historical commit, record its old behavior, current classification, why it is omitted, and the condition that would justify revisiting it. Cover superseded speculative/cache and GDN work, optional compatibility features, retest-only HIP/vision issues, configuration replacements, diagnostics, and the ROCmFP4 investigation policy. Update optimization-history to point at the new decision log and reflect that the historical direct-write GDN fusion is now superseded by current llama.cpp rather than a pending port candidate.
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Adds
docs/agents/historical-working-build-parity.mdas a durable reference for future migration work.The document records meaningful behavior-changing commits from the previous ROCmFPX-derived working lineage that are intentionally absent from the current fork, including:
It also updates
optimization-history.mdto link the decision log and correct the status of the old direct-write GDN fusion: current llama.cpp now contains native GDN cache-write fusion, so the historical WIP commit is treated as superseded rather than pending.