PerryTS · proggeramlug · Jul 27, 2026 · Jul 27, 2026 · Jul 27, 2026 · Jul 27, 2026
diff --git a/changelog.d/6812-keytable-lane.md b/changelog.d/6812-keytable-lane.md
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+perf(codegen/runtime): #6812 — key-table clone lane. `o[K[idx]] = v` with a loop-invariant string-array K and an integer-proven index joins the whole-loop clone: `%` enters the numeric grammar with exact integer ranges, the preflight wrapper materializes K's entries to stable heap strings and reuses the numeric guard's receiver proof verbatim (spill lanes included) into a resolved slot table, and the nest indexes that table with integer-domain ops (i64 srem — no frem/fmod library call) before the shared inline/spill store. Rotating-key writes (w12): 58 → 3 ms vs node ~18 ms — 6× faster than node.
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		perf(codegen/runtime): #6812 — key-table clone lane. `o[K[idx]] = v` with a loop-invariant string-array K and an integer-proven index joins the whole-loop clone: `%` enters the numeric grammar with exact integer ranges, the preflight wrapper materializes K's entries to stable heap strings and reuses the numeric guard's receiver proof verbatim (spill lanes included) into a resolved slot table, and the nest indexes that table with integer-domain ops (i64 srem — no frem/fmod library call) before the shared inline/spill store. Rotating-key writes (w12): 58 → 3 ms vs node ~18 ms — 6× faster than node.