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hakorune/CURRENT_TASK.md
tomoaki 9336785680 feat(anf): Phase 146/147 - Loop/If Condition ANF with Compare support 
## Phase 146 P0: ANF Routing SSOT Unified

**Goal**: Unify ANF routing in `lower_expr_with_scope()` L54-84, remove legacy lowering

**Changes**:
- expr_lowerer_box.rs: Added scope check (PureOnly → skip ANF, WithImpure → try ANF)
- post_if_post_k.rs: Removed legacy inline lowering (L271-285), added `lower_condition_legacy()` helper
- contract.rs: Already had `CondLoweringFailed` out-of-scope reason

**Test Results**: ✅ Phase 146 P0 smoke (exit 7), 0 regressions

## Phase 146 P1: Compare Operator Support

**Goal**: Enable ANF for condition expressions with Compare operators

**Changes**:
- joinir_dev.rs: Added `anf_allow_pure_enabled()` (HAKO_ANF_ALLOW_PURE=1)
- expr_lowerer_box.rs: PureOnly scope ANF support (L56-66)
- execute_box.rs: Compare operator support (+122 lines)
  - `execute_compare_hoist()`, `execute_compare_recursive()`, `ast_compare_to_joinir()`
  - Extended `normalize_and_lower()` for Compare

**Test Results**: ✅ Phase 146 P1 smoke (exit 7 with flags), 0 regressions

## Phase 147 P0: Recursive Comparison ANF

**Goal**: Extend recursive ANF to Compare operators

**Changes**:
- contract.rs: Added `AnfParentKind::Compare` variant
- plan_box.rs: Compare case in BinaryOp routing (L68-79, L134-139)
  - Distinguishes Compare vs arithmetic BinaryOp

**Benefits**: Enables recursive ANF for comparisons
- `s.length() == 3` → `t = s.length(); if (t == 3)` ✅
- `s1.length() < s2.length()` → `t1 = s1.length(); t2 = s2.length(); if (t1 < t2)` ✅

## Implementation Summary

**Files Modified** (9 files, +253 lines, -25 lines = +228 net):
1. src/config/env/joinir_dev.rs (+28 lines)
2. src/mir/control_tree/normalized_shadow/anf/contract.rs (+2 lines)
3. src/mir/control_tree/normalized_shadow/anf/execute_box.rs (+122 lines)
4. src/mir/control_tree/normalized_shadow/anf/plan_box.rs (+18 lines)
5. src/mir/control_tree/normalized_shadow/common/expr_lowerer_box.rs (+18 lines, -0 lines)
6. src/mir/control_tree/normalized_shadow/post_if_post_k.rs (+44 lines, -25 lines)
7. CURRENT_TASK.md
8. docs/development/current/main/10-Now.md
9. docs/development/current/main/30-Backlog.md

**Files Created** (7 files):
- apps/tests/phase146_p0_if_cond_unified_min.hako
- apps/tests/phase146_p1_if_cond_intrinsic_min.hako
- tools/smokes/.../phase146_p0_if_cond_unified_vm.sh
- tools/smokes/.../phase146_p0_if_cond_unified_llvm_exe.sh
- tools/smokes/.../phase146_p1_if_cond_intrinsic_vm.sh
- tools/smokes/.../phase146_p1_if_cond_intrinsic_llvm_exe.sh
- docs/development/current/main/phases/phase-146/README.md

**Acceptance Criteria**: ✅ All met
- cargo build --release: PASS (0 errors, 0 warnings)
- Phase 145 regressions: PASS (exit 12, 18, 5)
- Phase 146 P0: PASS (exit 7)
- Phase 146 P1: PASS (exit 7 with HAKO_ANF_ALLOW_PURE=1)

**Architecture**:
- SSOT: ANF routing only in `lower_expr_with_scope()` L54-84
- Box-First: Phase 145 `anf/` module extended
- Legacy removed: post_if_post_k.rs unified with SSOT

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-19 17:03:56 +09:00

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CURRENT_TASK (moved)

Status: SSOT
Scope: Repo root の旧リンク互換。現行の入口は docs/development/current/main/10-Now.md。

  • Now: docs/development/current/main/10-Now.md
  • Backlog: docs/development/current/main/30-Backlog.md

Handoff (current)

状況（SSOT）

  • 現行の入口: docs/development/current/main/10-Now.md
  • 次の候補: docs/development/current/main/30-Backlog.md

直近の道筋（JoinIR / Normalized）

設計方針メモ（SSOT候補）

  • ExprLowererBox（式SSOT）

    • 役割: AST(expr) → (prelude: Vec<Inst>, value: ValueId)（ANF含む）
    • pure/impure/whitelist/strict の契約を集約（入口SSOT）

  • ConditionLowererBox（条件→分岐SSOT）

    • 役割: AST(cond) → BranchPlan（短絡なら分岐語彙で組む）
    • 評価順は ExprLowererBox に委譲（ANFで順序固定）
    • &&/|| は制御として扱い、式で無理しない

  • ControlLowererBox（制御SSOT）

    • 役割: StepNode/ControlTree → JoinIR（継続 + env）
    • if/loop はここ、条件の中身は ConditionLowererBox に委譲

  • Phase 139: if-only post_k の return lowering を ReturnValueLowererBox に統一（DONE）

    • docs/development/current/main/phases/phase-139/README.md

  • Phase 140: NormalizedExprLowererBox 初版（pure expression のみ）（DONE）

    • SSOT: docs/development/current/main/design/normalized-expr-lowering.md
    • docs/development/current/main/phases/phase-140/README.md

  • Phase 141 P0: impure 拡張点（contract）を SSOT 化（Call/MethodCall はまだ out-of-scope）（DONE）

    • docs/development/current/main/phases/phase-141/README.md

  • Phase 141 P1: “既知 intrinsic だけ” を許可して段階投入（DONE）

    • docs/development/current/main/phases/phase-141/README.md

  • Phase 141 P1.5: known intrinsic registry + available_inputs 3-source merge + diagnostics（DONE）

    • docs/development/current/main/phases/phase-141/README.md

  • Phase 142-loopstmt P0: 正規化単位を statement（loop 1個）へ寄せる（DONE）

    • docs/development/current/main/phases/phase-142-loopstmt/README.md

  • Phase 142-loopstmt P1: LLVM EXE smoke（同 fixture）を追加（DONE）

    • docs/development/current/main/phases/phase-142-loopstmt/README.md

  • Phase 141 P2+: Call/MethodCall（effects + typing）を分離して段階投入

    • Historical context: docs/development/current/main/investigations/joinir-generalization-study.md

  • Phase 143-loopvocab P0/P1: loop 内 if/break/continue の語彙追加（DONE）

    • docs/development/current/main/phases/phase-143-loopvocab/README.md

  • Phase 143-loopvocab P2: else 対称化（B-C / C-B）（DONE）

    • docs/development/current/main/phases/phase-143-loopvocab/README.md

  • Phase 145-anf P0/P1/P2: ANF（impure hoist + 再帰的線形化）（DONE）

    • docs/development/current/main/phases/phase-145-anf/README.md

  • Phase 146（in progress）: Loop/If 条件式へ ANF を横展開（順序固定と診断）

    • docs/development/current/main/phases/phase-146/README.md

Resolved (historical)

WSL EXDEV / cargo build failure (resolved)

  • 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。
  • 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。