f0608e9bb1
## 🎉 完了項目 - ✅ plugin_box_legacy.rs削除（7.7KB、参照ゼロ確認済み） - ✅ REMOVEDコメント整理（encode.rs簡潔化） - ✅ venv削除（143MB節約、.gitignoreは既存） - ✅ llvm_legacyスタブ化（8KB、compile_error!による安全化） ## 🏆 成果 - **リポジトリサイズ改善**: 151MB削減 - **コード整理**: レガシーコード安全にアーカイブ - **プラグインファースト**: StrictPluginFirst継続動作 ## ✅ 検証完了 - cargo build --release --features llvm (警告のみ、エラーなし) - LLVMハーネス実行: print出力正常 - プラグイン動作: StringBox等正常動作 codex先生の戦略に従った安全な段階的削除を実行 Co-Authored-By: codex <noreply@anthropic.com>
28 lines
1.5 KiB
Markdown
28 lines
1.5 KiB
Markdown
## PHI-off Troubleshooting
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Scope: MIR PHI-off (edge-copy) policy with LLVM harness PHI synthesis.
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> Phase‑15 では PHI-on が既定だよ。このガイドは `NYASH_MIR_NO_PHI=1` を明示してレガシー edge-copy モードを再現しているときだけ参照してね。
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Symptoms and Hints
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- Merge block contains self-copy to merged value
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- Symptom: Verifier (edge-copy strict) complains or trace shows unexpected write at merge.
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- Check: Enable `NYASH_VERIFY_EDGE_COPY_STRICT=1` and locate offending merge block.
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- Fix: Ensure copies are inserted in predecessors only; merge binds the already-defined dst.
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- Missing predecessor copy into merged destination
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- Symptom: Edge-copy strict reports missing pred; phi-trace checker shows `missing=[...]`.
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- Check: `tools/phi_trace_check.py --file <trace.jsonl> --summary` (or drop `--summary` to see diffs on error).
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- Fix: Builder/Bridge must insert `Copy{dst=merged}` at that predecessor end.
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- Synthesized zero in PHI wiring
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- Symptom: phi-trace shows `zero=1` or checker with `--strict-zero` fails.
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- Check: Ensure the source value exists at predecessor end (resolve_i64/snapshot); add casts/boxing at pred end.
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- Fix: Route casts at pred end (not at merge); for strings/handles, ensure i64 handle flows across blocks.
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Tools
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- JSON trace: set `NYASH_LLVM_TRACE_PHI=1` and `NYASH_LLVM_TRACE_OUT=<path>`
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- One-shot: `tools/phi_trace_run.sh <app.nyash> [--strict-zero]`
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- Strict verifier (PHI-off): `NYASH_VERIFY_EDGE_COPY_STRICT=1 cargo test --lib`
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