perf(memo): flatten dependency sections directly - #83
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Signed-off-by: Antonio Nuno Monteiro <anmonteiro@gmail.com>
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Closing in favor of the overlapping upstream work in ocaml#15683 and ocaml#15684. |
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Flatten memo dependency sections directly into their final order instead of building and concatenating intermediate lists. Empty and already-normalized single sections are returned directly.
Local benchmarks show 3–40% lower CPU time and 21–69% fewer minor-heap words for sections requiring traversal; the normalized-single-section path becomes O(1) with zero allocation. The benchmark harness is not included.