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nyash-codex 52b62c5772 feat(phase21.5): Stage-B parser loop fix + delegate path stabilization

## 修正内容

### 1. Stage-B パーサー修正（偶然の回避）
- **ファイル**:
  - `lang/src/compiler/parser/expr/parser_expr_box.hako`
  - `lang/src/compiler/parser/stmt/parser_control_box.hako`
- **問題**: ネストループで gpos が正しく進まず、loop の cond/body が壊れる
- **回避策**: new 式のメソッドチェーン処理追加で別ループを導入
- **結果**: MIR 生成が変わって VM gpos バグを回避

### 2. delegate パス動作確認
- **テスト**: `/tmp/loop_min.hako` → rc=10 ✅
- **MIR構造**: 正しい PHI/compare/binop を生成
- **チェーン**: hakorune parser → Rust delegate → LLVM EXE 完動

### 3. ドキュメント追加
- `docs/development/analysis/` - delegate 分析
- `docs/development/guides/` - ループテストガイド
- `docs/development/testing/` - Stage-B 検証報告

### 4. カナリーテスト追加
- `tools/smokes/v2/profiles/quick/core/phase2100/` 配下に複数追加
- emit_boxcall_length_canary_vm.sh
- stageb_parser_loop_json_canary_vm.sh
- 他

### 受け入れ基準
- ✅ delegate パス: rc=10 返す
- ✅ FORCE パス: rc=10 返す（既存）
- ✅ MIR 構造: 正しい PHI incoming と compare
- ✅ 既定挙動: 不変（dev トグルのみ）

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

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

2025-11-11 21:24:51 +09:00

CHECKLIST.md

feat(phase21.5): Stage-B parser loop fix + delegate path stabilization

2025-11-11 21:24:51 +09:00

README.md

feat(phase21.5): Stage-B parser loop fix + delegate path stabilization

2025-11-11 21:24:51 +09:00

README.md

Phase 21.5 — Optimization (ny-llvm crate line)

Scope

Optimize hot paths for the crate (ny-llvmc) line using Hakorune scripts only.
Preserve default behavior; all risky changes behind dev toggles.
Measure EXE runtime (build once, run many) to avoid toolchain overhead noise.

Targets (initial)

loop: integer accumulations (no I/O)
strlen: FAST=1 path (pointer → nyrt_string_length)
box: construct/destroy minimal boxes (String/Integer)

Methodology

Build once via ny-llvmc; time execution only (--exe mode).
Runs: 3–5; report median and average (target ≥ 100ms per run).
Observe NYASH_VM_STATS=1 (inst/compare/branch) where relevant to correlate structure and runtime.

Commands (examples)

tools/perf/phase215/bench_loop.sh --runs 5
tools/perf/phase215/bench_strlen.sh --runs 5 --fast 1
tools/perf/phase215/run_all.sh --runs 5 --timeout 120

Dev Toggles (keep OFF by default)

NYASH_LLVM_FAST=1 (strlen FAST)
HAKO_MIR_BUILDER_JSONFRAG_NORMALIZE=1 (normalize)
HAKO_MIR_BUILDER_NORMALIZE_TAG=1 (tag, test-only)

Exit Criteria

Representative microbenches stable (≤ 5% variance) and ≥ 80% of C baselines.
No regression in EXE canaries (loop/print/strlen FAST) and VM parity canaries.

README.md Unescape Escape

Phase 21.5 — Optimization (ny-llvm crate line)

README.md