Commit Graph

6 Commits

Author SHA1 Message Date
3f58f34592 feat(llvm): Phase 132-P0 - block_end_values tuple-key fix for cross-function isolation
## Problem
`block_end_values` used block ID only as key, causing collisions when
multiple functions share the same block IDs (e.g., bb0 in both
condition_fn and main).

## Root Cause
- condition_fn's bb0 → block_end_values[0]
- main's bb0 → block_end_values[0] (OVERWRITES!)
- PHI resolution gets wrong snapshot → dominance error

## Solution (Box-First principle)
Change key from `int` to `Tuple[str, int]` (func_name, block_id):

```python
# Before
block_end_values: Dict[int, Dict[int, ir.Value]]

# After
block_end_values: Dict[Tuple[str, int], Dict[int, ir.Value]]
```

## Files Modified (Python - 6 files)

1. `llvm_builder.py` - Type annotation update
2. `function_lower.py` - Pass func_name to lower_blocks
3. `block_lower.py` - Use tuple keys for snapshot save/load
4. `resolver.py` - Add func_name parameter to resolve_incoming
5. `wiring.py` - Thread func_name through PHI wiring
6. `phi_manager.py` - Debug traces

## Files Modified (Rust - cleanup)

- Removed deprecated `loop_to_join.rs` (297 lines deleted)
- Updated pattern lowerers for cleaner exit handling
- Added lifecycle management improvements

## Verification

-  Pattern 1: VM RC: 3, LLVM Result: 3 (no regression)
- ⚠️ Case C: Still has dominance error (separate root cause)
  - Needs additional scope fixes (phi_manager, resolver caches)

## Design Principles

- **Box-First**: Each function is an isolated Box with scoped state
- **SSOT**: (func_name, block_id) uniquely identifies block snapshots
- **Fail-Fast**: No cross-function state contamination

## Known Issues (Phase 132-P1)

Other function-local state needs same treatment:
- phi_manager.predeclared
- resolver caches (i64_cache, ptr_cache, etc.)
- builder._jump_only_blocks

## Documentation

- docs/development/current/main/investigations/phase132-p0-case-c-root-cause.md
- docs/development/current/main/investigations/phase132-p0-tuple-key-implementation.md

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-15 05:36:50 +09:00
233a49d902 feat(joinir): Phase 131-11 A-C - InfiniteEarlyExit パターン追加(検出部分)
## Step A: Feature Detection
- LoopPatternKind::InfiniteEarlyExit (Pattern 5) 追加
- LoopFeatures::is_infinite_loop フィールド追加
- detect_infinite_loop() で loop(true) 検出

## Step B: Classification Logic
- classify() を更新: Pattern 5 を Pattern 4 より優先
- Pattern 4 を狭化: has_continue && !has_break のみ
- 誤ルーティング完全除去

## Step C: Pattern Module
- pattern5_infinite_early_exit.rs 新規作成
- Fail-Fast 設計: 超狭い shape guard
- lowering はスケルトン(Phase 131-11-D で実装)

## 動作確認
- Pattern 5 正常検出 
- Shape guards 動作(1 break, 1 continue, 1 carrier)
- Pattern 4 誤ルーティング回避 

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-14 09:59:34 +09:00
af6f95cd4b Phase 33 NORM canon test: enforce normalized dev route for P1/P2/JP mini 2025-12-11 20:54:33 +09:00
3ece6896c4 refactor(joinir): Phase 183-1 Unify pattern detection in loop_pattern_detection
Consolidates duplicate pattern detection logic across two routing layers.

## Changes

1. **Unified Detection Documentation**:
   - Added Phase 183 comments to `loop_pattern_detection::classify()`
   - Documented that this is the single source of truth for pattern classification
   - Both routers now reference this centralized function

2. **Router Documentation Updates**:
   - `patterns/router.rs`: Added Phase 183 comments explaining structure-based routing
   - `loop_pattern_router.rs`: Added unified detection section
   - Both routers now explicitly reference shared detection logic

3. **Improved Debug Output**:
   - Added `pattern_kind` to debug message in `route_loop_pattern()`
   - Helps diagnose pattern matching failures

## Benefits

- **Single source of truth**: Pattern classification logic in one place
- **Consistency**: Both routers use same detection algorithm
- **Maintainability**: Changes to classification rules only needed once
- **Documentation**: Clear references between routers and detection module

## Testing

 All loop_pattern_detection tests pass
 Pattern 2 tests pass
 No behavioral changes, pure documentation/organization refactoring

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-08 22:17:06 +09:00
35f5a48eb0 docs(joinir): Phase 33 Completion - Box Theory Modularization Summary
## Phase 33: Complete JoinIR Modularization via Box Theory (3 Phases)

This commit consolidates the comprehensive modularization work across three phases:
- Phase 33-10: Exit Line Modularization (ExitLineReconnector + ExitMetaCollector Boxes)
- Phase 33-11: Quick Wins (Pattern 4 stub clarification, unused imports cleanup)
- Phase 33-12: Large Module Modularization (split mod.rs, loop_patterns.rs restructuring)

### Phase 33-10: Exit Line Modularization (Boxes P0-P1)

**New Files**:
- `exit_line/reconnector.rs` (+130 lines): ExitLineReconnector Box
  - Responsibility: Update host variable_map with remapped exit values
  - Design: Phase 197-B multi-carrier support (each carrier gets specific remapped value)
  - Pure side effects: Only updates builder.variable_map
  - Testing: Independent unit testing possible without full merge machinery

- `exit_line/meta_collector.rs` (+102 lines): ExitMetaCollector Box
  - Responsibility: Construct exit_bindings from ExitMeta + variable_map lookup
  - Design: Pure function philosophy (no side effects except variable_map reads)
  - Reusability: Pattern-agnostic (works for Pattern 1, 2, 3, 4)
  - Algorithm: For each carrier in exit_meta, lookup host ValueId, create binding

- `exit_line/mod.rs` (+58 lines): ExitLineOrchestrator facade
  - Coordination: Orchestrates Phase 6 boundary reconnection
  - Architecture: Delegates to ExitLineReconnector (demonstrates Box composition)
  - Documentation: Comprehensive header explaining Box Theory modularization benefits

**Modified Files**:
- `merge/mod.rs` (-91 lines): Extracted reconnect_boundary() → ExitLineReconnector
  - Made exit_line module public (was mod, now pub mod)
  - Phase 6 delegation: Local function call → ExitLineOrchestrator::execute()
  - Added exit_bindings' join_exit_values to used_values for remapping (Phase 172-3)

- `patterns/pattern2_with_break.rs` (-20 lines): Uses ExitMetaCollector
  - Removed: Manual exit_binding construction loop
  - Added: Delegated ExitMetaCollector::collect() for cleaner caller code
  - Benefit: Reusable collector for all pattern lowerers (Pattern 1-4)

**Design Philosophy** (Exit Line Module):
Each Box handles one concern:
- ExitLineReconnector: Updates host variable_map with exit values
- ExitMetaCollector: Constructs exit_bindings from ExitMeta
- ExitLineOrchestrator: Orchestrates Phase 6 reconnection

### Phase 33-11: Quick Wins

**Pattern 4 Stub Clarification** (+132 lines):
- Added comprehensive header documentation (106 lines)
- Made `lower()` return explicit error (not silent stub)
- Migration guide: Workarounds using Pattern 1-3
- New file: `docs/development/proposals/phase-195-pattern4.md` (implementation plan)
- Status: Formal documentation that Pattern 4 is deferred to Phase 195

**Cleanup**:
- Removed unused imports via `cargo fix` (-10 lines, 11 files)
- Files affected: generic_case_a/ (5 files), if_merge.rs, if_select.rs, etc.

### Phase 33-12: Large Module Modularization

**New Files** (Modularization):
- `if_lowering_router.rs` (172 lines): If-expression routing
  - Extracted from mod.rs lines 201-423
  - Routes if-expressions to appropriate JoinIR lowering strategies
  - Single responsibility: If expression dispatch

- `loop_pattern_router.rs` (149 lines): Loop pattern routing
  - Extracted from mod.rs lines 424-511
  - Routes loop patterns to Pattern 1-4 implementations
  - Design: Dispatcher pattern for pattern selection

- `loop_patterns/mod.rs` (178 lines): Pattern dispatcher + shared utilities
  - Created as coordinator for per-pattern files
  - Exports all pattern functions via pub use
  - Utilities: Shared logic across pattern lowerers

- `loop_patterns/simple_while.rs` (225 lines): Pattern 1 lowering
- `loop_patterns/with_break.rs` (129 lines): Pattern 2 lowering
- `loop_patterns/with_if_phi.rs` (123 lines): Pattern 3 lowering
- `loop_patterns/with_continue.rs` (129 lines): Pattern 4 stub

**Modified Files** (Refactoring):
- `lowering/mod.rs` (511 → 221 lines, -57%):
  - Removed try_lower_if_to_joinir() (223 lines) → if_lowering_router.rs
  - Removed try_lower_loop_pattern_to_joinir() (88 lines) → loop_pattern_router.rs
  - Result: Cleaner core module with routers handling dispatch

- `loop_patterns.rs` → Re-export wrapper (backward compatibility)

**Result**: Clearer code organization
- Monolithic mod.rs split into focused routers
- Large loop_patterns.rs split into per-pattern files
- Better maintainability and testability

### Phase 33: Comprehensive Documentation

**New Architecture Documentation** (+489 lines):
- File: `docs/development/architecture/phase-33-modularization.md`
- Coverage: All three phases (33-10, 33-11, 33-12)
- Content:
  - Box Theory principles applied
  - Complete statistics table (commits, files, lines)
  - Code quality analysis
  - Module structure diagrams
  - Design patterns explanation
  - Testing strategy
  - Future work recommendations
  - References to implementation details

**Source Code Comments** (+165 lines):
- `exit_line/mod.rs`: Box Theory modularization context
- `exit_line/reconnector.rs`: Design notes on multi-carrier support
- `exit_line/meta_collector.rs`: Pure function philosophy
- `pattern4_with_continue.rs`: Comprehensive stub documentation + migration paths
- `if_lowering_router.rs`: Modularization context
- `loop_pattern_router.rs`: Pattern dispatch documentation
- `loop_patterns/mod.rs`: Per-pattern structure benefits

**Project Documentation** (+45 lines):
- CLAUDE.md: Phase 33 completion summary + links
- CURRENT_TASK.md: Current state and next phases

### Metrics Summary

**Phase 33 Total Impact**:
- Commits: 5 commits (P0, P1, Quick Wins×2, P2)
- Files Changed: 15 files modified/created
- Lines Added: ~1,500 lines (Boxes + documentation + comments)
- Lines Removed: ~200 lines (monolithic extractions)
- Code Organization: 2 monolithic files → 7 focused modules
- Documentation: 1 comprehensive architecture guide created

**mod.rs Impact** (Phase 33-12 P2):
- Before: 511 lines (monolithic)
- After: 221 lines (dispatcher + utilities)
- Reduction: -57% (290 lines extracted)

**loop_patterns.rs Impact** (Phase 33-12 P2):
- Before: 735 lines (monolithic)
- After: 5 files in loop_patterns/ (178 + 225 + 129 + 123 + 129)
- Improvement: Per-pattern organization

### Box Theory Principles Applied

1. **Single Responsibility**: Each Box handles one concern
   - ExitLineReconnector: variable_map updates
   - ExitMetaCollector: exit_binding construction
   - if_lowering_router: if-expression dispatch
   - loop_pattern_router: loop pattern dispatch
   - Per-pattern files: Individual pattern lowering

2. **Clear Boundaries**: Public/private visibility enforced
   - Boxes have explicit input/output contracts
   - Module boundaries clearly defined
   - Re-exports for backward compatibility

3. **Replaceability**: Boxes can be swapped/upgraded independently
   - ExitLineReconnector can be optimized without affecting ExitMetaCollector
   - Per-pattern files can be improved individually
   - Router logic decoupled from lowering implementations

4. **Testability**: Smaller modules easier to unit test
   - ExitMetaCollector can be tested independently
   - ExitLineReconnector mockable with simple boundary
   - Pattern lowerers isolated in separate files

### Design Patterns Introduced

1. **Facade Pattern**: ExitLineOrchestrator
   - Single-entry point for Phase 6 reconnection
   - Hides complexity of multi-step process
   - Coordinates ExitLineReconnector + other steps

2. **Dispatcher Pattern**: if_lowering_router + loop_pattern_router
   - Centralized routing logic
   - Easy to add new strategies
   - Separates dispatch from implementation

3. **Pure Function Pattern**: ExitMetaCollector::collect()
   - No side effects (except reading variable_map)
   - Easy to test, reason about, parallelize
   - Reusable across all pattern lowerers

### Testing Strategy

- **Unit Tests**: Can test ExitMetaCollector independently
- **Integration Tests**: Verify boundary reconnection works end-to-end
- **Regression Tests**: Pattern 2 simple loop still passes
- **Backward Compatibility**: All existing imports still work

### Future Work

- **Phase 33-13**: Consolidate whitespace utilities (expected -100 lines)
- **Phase 34**: Extract inline_boundary validators (expected 3h effort)
- **Phase 35**: Mark loop_patterns_old.rs as legacy and remove (Phase 35+)
- **Phase 195**: Implement Pattern 4 (continue) fully
- **Phase 200+**: More complex loop patterns and optimizations

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-12-07 04:03:42 +09:00
adccfe5a4e refactor(joinir): Phase 33-12 Large module modularization complete
Task 1: Split mod.rs into if/loop routers
- Created if_lowering_router.rs (172 lines): If-expression routing
- Created loop_pattern_router.rs (149 lines): Loop pattern routing
- Refactored mod.rs (511 → 221 lines): Thin re-export module

Task 2: Modularize loop_patterns per-pattern
- Created loop_patterns/ directory with 4 pattern files:
  - simple_while.rs (225 lines): Pattern 1 implementation
  - with_break.rs (129 lines): Pattern 2 implementation
  - with_if_phi.rs (123 lines): Pattern 3 implementation
  - with_continue.rs (129 lines): Pattern 4 stub
- Created mod.rs (178 lines): Dispatcher + shared utilities
- Removed old loop_patterns.rs (735 lines → directory)

Line count changes:
- mod.rs: 511 → 221 lines (57% reduction)
- loop_patterns: 735 → 784 lines (modularized)
- Total: Net +80 lines for better organization

Benefits:
- Single responsibility per file
- Clear pattern boundaries
- Improved testability
- Better maintainability
- Backward compatibility maintained

Testing:
- cargo build --release:  Success (0 errors)
- Regression test:  Pass (RC: 0)
2025-12-07 03:26:23 +09:00