## Phase 286 P2.3: Pattern9 AccumConstLoop Plan化 PoC - DomainPlan::Pattern9AccumConstLoop 追加 - PlanNormalizer::normalize_pattern9_accum_const_loop() 実装 - PHI 2本(loop_var, acc_var) - const/var 両方 OK(sum = sum + 1 または sum = sum + i) - Pattern9 は Pattern1 より優先(より具体的なパターン) - Integration test: phase286_pattern9_frag_poc PASS (return: 3) - Regression: quick 154 PASS ## Phase 287: Router table-driven Plan extraction - PLAN_EXTRACTORS static table で Pattern6/7/4/9/1 を統一管理 - PlanExtractorEntry/PlanExtractorVariant 構造体追加 - try_plan_extractors() で ~100行 → 3行に集約 - メンテナンス性向上(新 Pattern 追加はテーブル1行追加のみ) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
73 lines
4.2 KiB
Markdown
73 lines
4.2 KiB
Markdown
# CURRENT_TASK (moved)
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Status: SSOT
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Scope: Repo root の旧リンク互換。現行の入口は `docs/development/current/main/10-Now.md`。
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- Now: `docs/development/current/main/10-Now.md`
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- Backlog: `docs/development/current/main/30-Backlog.md`
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---
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## Handoff (current)
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### 状況(SSOT)
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**2025-12-26: Phase 286 P2.2 COMPLETE (Hygiene: extractor重複排除 + router小整理)**
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Pattern1/Pattern4 の Plan/Frag PoC 完了後、extractor の `extract_loop_increment_plan` を `common_helpers.rs` に統一、router の 3行パターン(normalize→verify→lower)を `lower_via_plan()` ヘルパーで共通化。~65行削減、quick 154 PASS 維持。
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**2025-12-26: Phase 286 P2.3 COMPLETE (Pattern9 AccumConstLoop Plan化 PoC)**
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Pattern9 (AccumConstLoop) を Plan/Frag SSOT に移行完了。PHI 2本(loop_var, acc_var)、const/var 両方 OK。Pattern9 は Pattern1 より先にチェック(より具体的なパターン)。quick 154 PASS 維持。
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- 現行の入口: `docs/development/current/main/10-Now.md`
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- Phase 286 詳細: `docs/development/current/main/phases/phase-286/README.md`
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- 次の候補: `docs/development/current/main/30-Backlog.md`
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- Design goal: `docs/development/current/main/design/join-explicit-cfg-construction.md`
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### 直近の道筋(JoinIR / Normalized)
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### 設計方針メモ(SSOT候補)
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- ExprLowererBox(式SSOT)
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- 役割: `AST(expr)` → `(prelude: Vec<Inst>, value: ValueId)`(ANF含む)
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- pure/impure/whitelist/strict の契約を集約(入口SSOT)
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- ConditionLowererBox(条件→分岐SSOT)
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- 役割: `AST(cond)` → `BranchPlan`(短絡なら分岐語彙で組む)
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- 評価順は ExprLowererBox に委譲(ANFで順序固定)
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- `&&/||` は制御として扱い、式で無理しない
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- ControlLowererBox(制御SSOT)
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- 役割: `StepNode/ControlTree` → JoinIR(継続 + env)
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- `if/loop` はここ、条件の中身は ConditionLowererBox に委譲
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- Phase 139: if-only `post_k` の return lowering を `ReturnValueLowererBox` に統一(DONE)
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- `docs/development/current/main/phases/phase-139/README.md`
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- Phase 140: `NormalizedExprLowererBox` 初版(pure expression のみ)(DONE)
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- SSOT: `docs/development/current/main/design/normalized-expr-lowering.md`
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- `docs/development/current/main/phases/phase-140/README.md`
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- Phase 141 P0: impure 拡張点(contract)を SSOT 化(Call/MethodCall はまだ out-of-scope)(DONE)
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- `docs/development/current/main/phases/phase-141/README.md`
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- Phase 141 P1: “既知 intrinsic だけ” を許可して段階投入(DONE)
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- `docs/development/current/main/phases/phase-141/README.md`
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- Phase 141 P1.5: known intrinsic registry + available_inputs 3-source merge + diagnostics(DONE)
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- `docs/development/current/main/phases/phase-141/README.md`
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- Phase 142-loopstmt P0: 正規化単位を statement(loop 1個)へ寄せる(DONE)
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- `docs/development/current/main/phases/phase-142-loopstmt/README.md`
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- Phase 142-loopstmt P1: LLVM EXE smoke(同 fixture)を追加(DONE)
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- `docs/development/current/main/phases/phase-142-loopstmt/README.md`
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- Phase 141 P2+: Call/MethodCall(effects + typing)を分離して段階投入
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- Historical context: `docs/development/current/main/investigations/joinir-generalization-study.md`
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- Phase 143-loopvocab P0/P1: loop 内 if/break/continue の語彙追加(DONE)
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- `docs/development/current/main/phases/phase-143-loopvocab/README.md`
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- Phase 143-loopvocab P2: else 対称化(B-C / C-B)(DONE)
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- `docs/development/current/main/phases/phase-143-loopvocab/README.md`
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- Phase 145-anf P0/P1/P2: ANF(impure hoist + 再帰的線形化)(DONE)
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- `docs/development/current/main/phases/phase-145-anf/README.md`
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- Phase 146(in progress): Loop/If 条件式へ ANF を横展開(順序固定と診断)
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- `docs/development/current/main/phases/phase-146/README.md`
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## Resolved (historical)
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### WSL EXDEV / cargo build failure (resolved)
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- 2025-12-18: `Invalid cross-device link (os error 18)` により `cargo build` が失敗する事象があったが、`wsl --shutdown` 再起動後に復旧。
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- 再発時のワークアラウンド: `tools/build_llvm.sh` は EXDEV を避けるため `TMPDIR` を `target/...` 配下へ寄せる。
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