nyash-codex 4ef5eec162 feat(mir): Phase 84-2 CopyTypePropagator for Copy chain type propagation ...

- Add CopyTypePropagator box (ChatGPT Pro design) for fixed-point
  Copy instruction type propagation
- Integrate into lifecycle.rs before return type inference
- Case D reduced from 12 to 9 (25% reduction)

Implementation:
- src/mir/phi_core/copy_type_propagator.rs: New box with fixed-point loop
- src/mir/phi_core/mod.rs: Add module export
- src/mir/builder/lifecycle.rs: Call propagator before return inference

Test results:
- Baseline: 494 passed, 33 failed (was 489/34)
- Case D: 9 remaining (from 12)
- Unit tests: 4/4 passed

Remaining 9 Case D breakdown:
- GroupA: Loop Edge Copy (7 cases) - PHI incoming needs Copy trace
- GroupB: Multi-level PHI (2 cases) - Recursive PHI resolution needed

Phase 84-3 will address GroupA with Edge Copy tracing in GenericTypeResolver.

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

Co-Authored-By: Claude <noreply@anthropic.com>

2025-12-02 19:37:01 +09:00

..

00-Overview.md

docs: add MIR13 mode doc and set PHI-off as default; bridge lowering split (if/loop/try); llvmlite resolver stabilization; curated runner default PHI-off; refresh CURRENT_TASK.md

2025-09-17 10:58:12 +09:00

10-Now.md

docs: add MIR13 mode doc and set PHI-off as default; bridge lowering split (if/loop/try); llvmlite resolver stabilization; curated runner default PHI-off; refresh CURRENT_TASK.md

2025-09-17 10:58:12 +09:00

20-Decisions.md

docs: add MIR13 mode doc and set PHI-off as default; bridge lowering split (if/loop/try); llvmlite resolver stabilization; curated runner default PHI-off; refresh CURRENT_TASK.md

2025-09-17 10:58:12 +09:00

30-Backlog.md

docs: add MIR13 mode doc and set PHI-off as default; bridge lowering split (if/loop/try); llvmlite resolver stabilization; curated runner default PHI-off; refresh CURRENT_TASK.md

2025-09-17 10:58:12 +09:00

phase33-10-implementation-recommendation.md

feat(joinir): Phase 34-6 MethodCall 構造と本物の substring 意味論

2025-11-27 17:05:46 +09:00

phase33-10-local-pattern-mir-analysis.md

feat(joinir): Phase 34-6 MethodCall 構造と本物の substring 意味論

2025-11-27 17:05:46 +09:00

phase61-5-3-if-phi-priority-table.md

docs: Phase 61-5 If PHI 棚卸し完了

2025-11-29 15:57:14 +09:00

phase61-5-summary.md

docs: Phase 61-5 If PHI 棚卸し完了

2025-11-29 15:57:14 +09:00

phase61-5.4-next-phase-candidates.md

docs: Phase 61-5 If PHI 棚卸し完了

2025-11-29 15:57:14 +09:00

phase69-1-trio-inventory.md

feat(joinir): Phase 66-68 GenericTypeResolver + JoinIR First Chapter Wrap

2025-11-30 08:54:18 +09:00

phase69-4-trio-deletion-plan.md

docs(phi_core): Phase 70 完全達成！Trio 完全削除 (~1,443行)

2025-12-02 09:45:54 +09:00

phase69-4.3-trio-to-loopscope-migration.md

docs(phi_core): Phase 69-4 完全達成！Trio 削除準備完了

2025-11-30 10:10:45 +09:00

phase71-findings-20251202.md

docs(phase71): Phase 71 初回観測完了 - SSA/selfhost 根本原因特定

2025-12-02 10:19:07 +09:00

phase71-ssa-trim-fix-20251202.md

feat(phase71-ssa): SSA undef 完全解消達成！(4件→0件)

2025-12-02 11:16:01 +09:00

phase72-73-env-inventory.md

feat(env): Phase 71-73 - SSA fix + Stage-3 ENV consolidation

2025-12-02 12:36:28 +09:00

phase84-2-case-d-investigation.md

feat(mir): Phase 84-2 CopyTypePropagator for Copy chain type propagation

2025-12-02 19:37:01 +09:00

phase84-2-failure-patterns.md

feat(mir): Phase 84-2 CopyTypePropagator for Copy chain type propagation

2025-12-02 19:37:01 +09:00

phase84-2-summary.md

feat(mir): Phase 84-2 CopyTypePropagator for Copy chain type propagation

2025-12-02 19:37:01 +09:00

phase84-2-test-list.md

feat(mir): Phase 84-2 CopyTypePropagator for Copy chain type propagation

2025-12-02 19:37:01 +09:00

phase84-case-d-detailed-analysis.md

feat(mir): Phase 84-2 CopyTypePropagator for Copy chain type propagation

2025-12-02 19:37:01 +09:00

phase84-case-d-index.md

feat(mir): Phase 84-2 CopyTypePropagator for Copy chain type propagation

2025-12-02 19:37:01 +09:00

phase84-case-d-summary.md

feat(mir): Phase 84-2 CopyTypePropagator for Copy chain type propagation

2025-12-02 19:37:01 +09:00

phase-21.7-naming-ssot-checklist.md

chore: Phase 26-H セッション完了 - 全ドキュメント更新

2025-11-23 05:53:27 +09:00

stage1_cli_ssa_valueid34_analysis.md

docs(stage1): Phase 25.1 - Stage-1 CLI ValueId(34) SSA バグ完全調査完了

2025-11-21 07:00:05 +09:00

stage1_mir_builder_type_confusion_bug.md

debug(stage1): Phase 25.1 - MIR Builder 型混乱バグ完全特定

2025-11-21 08:03:03 +09:00

stage1_mir_log_investigation.md

debug(stage1): Phase 25.1 - MIR Builder 型混乱バグ完全特定

2025-11-21 08:03:03 +09:00

valueid-fix-implementation-guide.md

feat(phi): Step 5-5-H完了 - Phantom block検証＋PHI決定性向上

2025-11-20 17:10:03 +09:00

valueid-fix-implementation-summary.md

feat(phi): Step 5-5-H完了 - Phantom block検証＋PHI決定性向上

2025-11-20 17:10:03 +09:00

valueid-nondeterminism-root-cause-analysis.md

feat(phi): Step 5-5-H完了 - Phantom block検証＋PHI決定性向上

2025-11-20 17:10:03 +09:00