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make: content-keyed test-commit tier caches the 10 pure gates (test-perf T1)

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The 990-997/950/989_lib_byteid gates are pure functions of (stage
binaries, tracked sources, fixtures, harness, Makefile) and eat 87% of
full-test wall (measured, .ai/testperf-baseline.md). test-commit hashes
exactly those inputs; a match with the last green full run reports the
gates as 'cached' (counted separately, never silently) and runs
everything else - 25s vs 212s on a hit, full run on any miss. A red
run never records the key; make test itself is never cached and stays
the pre-push bar (rule 14 updated). Key gap caught in review:
examples/ feeds 996_dyn_ww - included.
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Hojun-Cho
2026-06-10 16:10:20 +09:00
parent f940072623
commit 9b99d0883f
3 changed files with 107 additions and 4 deletions
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CLAUDE.md
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@@ -11,4 +11,4 @@
11. Split commits when they bundle unrelated concerns. Bisect-cleanliness is the default. Multi-fix commits need a body paragraph explaining why they couldn't split.
12. Simple data, simple algorithms. Sea-of-stars style. Mirror Hare's structural choices over clever alternatives.
13. No hardcoded size literals in size-computation contexts. Always route through the type table (tinfo.size / Type.size / ty_*->size / size(T) / primtypesize / tyslicesize). Per Drew's framing of Hare's discipline. `make sizelint` enforces and runs as a dep of `make test`. Exemptions documented inline with `// sizelint-ok: <reason>` (ww) or `/* sizelint-ok: <reason> */` (C). Optional local enforcement: `ln -s ../../tools/sizelint .git/hooks/pre-commit`.
14. Test targets. Inner-loop dev runs `make test-unit` (~3.8s, skips wwstage-driver tests: 950, 990–997). Pre-commit / pre-push runs full `make test` (~8:30, all 132 incl. byte-id gates). The `test` target is the bootstrap-correctness gate — never push without it green. test-unit is a fast confidence check on unit-level code (stages, stdlib, smoke); a green test-unit doesn't prove bootstrap, only that the unit set is intact. Don't add new wwstage-driver tests outside the 950/990–997 range (the test/run skip set is keyed by NNN prefix). Phase split background: ww_ww writes intermediates next to every traversed source (filed bug), so concurrent wwstage-driver tests would race on `selfhost/cmd/<tool>/main.{s,combined.ww,o}` fixtures.
14. Test targets. Inner-loop dev runs `make test-unit` (~3.8s, skips wwstage-driver tests: 950, 990–997). Pre-commit runs `make test-commit` (content-keyed tier: the 10 pure gates — 950, 989_lib_byteid, 990–997 — report `cached` when the input key matches the last green full run; ~25s on a hit, full gate run on any miss; key = stage-binary md5s + tracked selfhost/lib/cmd/rt/test/examples sources + harness + Makefile; cache in out/.testcache, wiped by make clean; mtime keys and partial keys are vetoed). Pre-push runs full `make test` (~3:40 measured at f940072, all 353 incl. byte-id gates) — the bootstrap-correctness gate, never cached; never push without it green. test-unit is a fast confidence check on unit-level code (stages, stdlib, smoke); a green test-unit doesn't prove bootstrap, only that the unit set is intact. Don't add new wwstage-driver tests outside the 950/990–997 range (the test/run skip set is keyed by NNN prefix). Phase split background: ww_ww writes intermediates next to every traversed source (filed bug), so concurrent wwstage-driver tests would race on `selfhost/cmd/<tool>/main.{s,combined.ww,o}` fixtures.