nyash-codex
ed38aa820a
test: Phase 116 if-only keep+call merge parity (VM + LLVM EXE)
Phase 116 固定: if-only で片側が元値保持、片側が call 結果の merge パターン
## 実装内容
### Fixture
- `apps/tests/phase116_if_only_keep_plus_call_min.hako`
- Expected output: `10\n2`
- Pattern:
- then側: call結果でvを更新 (`v = f(1)`)
- else側: 元の値を保持 (`v = 10`)
- merge地点: 異なるソース(元値 vs call結果)からのPHI
### Smoke Tests
- `phase116_if_only_keep_plus_call_vm.sh` - VM parity
- output_validator.sh で数値2行 `10\n2` を検証
- `NYASH_DISABLE_PLUGINS=1 HAKO_JOINIR_STRICT=1`
- `phase116_if_only_keep_plus_call_llvm_exe.sh` - LLVM EXE parity
- llvm_exe_runner.sh を利用(plugin dlopen/cache/build-all SSOT)
- llvm_exe_build_and_run_numeric_smoke で検証
## 検証結果
✅ VM smoke: PASS (10\n2)
✅ LLVM EXE smoke: PASS (10\n2)
✅ 回帰 (Phase 115): PASS (2\n3)
## 技術的詳細
### JoinIR Pattern 1 (Simple If)
```
entry_block:
v = 10
if flag == 1 goto then_block else exit_block
then_block:
v = f(1)
goto exit_block
exit_block:
v_merged = PHI [v=10 from entry, v=f(1) from then]
print(v_merged)
```
### PHI接続の重要性
- entry → exit: 元値 (`10`) を直接伝播
- then → exit: call結果 (`f(1)`) を伝播
- PHI: 異なる型のソース(変数 vs call結果)を正しくmerge
LLVM IRでは、これらが適切な型で統一される必要がある。
## Box-First原則の適用
✅ 既存の箱化されたコンポーネントを活用
- output_validator.sh による出力検証の統一
- llvm_exe_runner.sh によるLLVM実行の標準化
- テストインフラの再利用(no reinvention)
## Fail-Fast原則
✅ VM/LLVM両方でエラーを即座に検出
- `HAKO_JOINIR_STRICT=1` で厳密な検証
- フォールバック処理なし(エラーは明示的に失敗)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-18 02:39:33 +09:00
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