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smalltalk: per-call-site inline cache + 10 IC tests
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giles
2026-04-25 15:30:36 +00:00
parent 5d369daf2b
commit df62c02a21
4 changed files with 137 additions and 2 deletions
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plans/smalltalk-on-sx.md
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@@ -100,7 +100,7 @@ Core mapping:
- [x] Stretch: ANSI Smalltalk validator subset (`lib/smalltalk/tests/ansi.sx`). 62 tests organised by ANSI X3J20 §6.10 Object, §6.11 Boolean, §6.12 Number, §6.13 Integer, §6.16 Symbol, §6.17 String, §6.18 Array, §6.19 BlockContext. Each test runs through SUnit and emits one st-test row, mirroring the Pharo-slice harness.
### Phase 7 — speed (optional)
- [ ] Method-dictionary inline caching (already in CEK as a primitive; just wire selector cache)
- [x] Method-dictionary inline caching. Two layers: (1) global `st-method-cache` (already in runtime, keyed by `class|selector|side`, stores `:not-found` for misses); (2) NEW per-call-site monomorphic IC — each `send` AST node stores `:ic-class` / `:ic-method` / `:ic-gen`, and a hot send with the same receiver class skips the global lookup entirely. `st-ic-generation` (in runtime.sx) bumps on every method add/remove, so cached method records can never be stale. `st-ic-stats` / `st-ic-reset-stats!` for tests + later debugging. 10 dedicated IC tests in `lib/smalltalk/tests/inline_cache.sx`.
- [ ] Block intrinsification beyond `whileTrue:` / `ifTrue:`
- [ ] Compare against GNU Smalltalk on the corpus
@@ -108,6 +108,7 @@ Core mapping:
_Newest first. Agent appends on every commit._
- 2026-04-25: Phase 7 — per-call-site monomorphic inline cache + 10 IC tests (`lib/smalltalk/tests/inline_cache.sx`). `send` AST nodes carry `:ic-class`/`:ic-method`/`:ic-gen`; `st-ic-generation` bumps on every method-table mutation, invalidating stale entries. 823/823 total.
- 2026-04-25: ANSI X3J20 validator subset + 62 tests (`lib/smalltalk/tests/ansi.sx`). One TestCase subclass per ANSI §6.x protocol; runs through SUnit. **Phase 6 complete.** 813/813 total.
- 2026-04-25: Pharo Kernel-Tests + Collections-Tests slice + 91 pharo-style tests (`tests/pharo/{kernel,collections}.st` + `tests/pharo.sx`). Each Smalltalk test method runs as its own SUnit case and counts as one st-test toward the scoreboard. 751/751 total — past the Phase 6 "200+ green tests" target.
- 2026-04-25: SUnit port (`lib/smalltalk/sunit.sx`, `lib/smalltalk/tests/sunit.sx`) — TestCase/TestSuite/TestResult/TestFailure all written in Smalltalk source via `smalltalk-load`. Full assert family + should:raise: + setUp/tearDown threading. 19 tests verify the framework. test.sh now bootstraps SUnit alongside runtime/eval. 660/660 total.