phase29aa(p5): multi-pred return join when states match

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2025-12-28 04:43:19 +09:00
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commit 02c01758b3
4 changed files with 184 additions and 5 deletions

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# Self Current Task — Now (main)
## Current Focus: Phase 29aa P4Jump-chain propagation to Return
## Current Focus: Phase 29aa P5Multi-predecessor Return join
**2025-12-28: Phase 29aa P5 完了**
- 目的: Return block が複数 predecessor のとき、incoming state が完全一致する場合のみ ReturnCleanup を成立させる
- 入口: `docs/development/current/main/phases/phase-29aa/README.md`
- Safety Contract: state 不一致なら join state を作らない(誤 release 防止)
- Selfcheck: Case 3.7state一致→cleanup/ Case 3.8state不一致→no cleanupPASS
- 検証: quick 154/154 PASS / selfcheck PASS
**2025-12-27: Phase 29aa P4 完了**
- 目的: Jump の直列チェーン(単一 predecessorを通して ReturnCleanup を成立させるcleanup は Return block のみ)
- 入口: `docs/development/current/main/phases/phase-29aa/README.md`
- 次: Phase 29aa P5候補: multi-predecessor/PHI/loop/early-exit の安全設計)
**2025-12-27: Phase 29aa P3 完了**
- 目的: Jump→Return単一 predecessorで state 伝播し ReturnCleanup を成立