811dfebf98
Remove legacy hardcoded 'sum' carrier validation that was blocking array_filter patterns with different accumulator names (e.g., 'out'). Before: Pattern3 required carrier named 'sum' to exist After: Pattern3 uses carrier_info generically (any carrier name works) Test results: - phase49_joinir_array_filter_smoke: PASS ✅ - phase49_joinir_array_filter_fallback: PASS ✅ - phase49_joinir_array_filter_ab_comparison: PASS ✅ - Full suite: 909/909 PASS, 0 FAIL Also: Archive old roadmap documentation (67k lines moved to docs/archive/) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Phase 11.7 – JIT Complete (MIR-15 + Semantics + Sync/Async GC)
Scope: Implement a production‑ready JIT backend for Nyash that fully supports the MIR Core‑15 instruction set, synchronous/async GC cooperation, and delivers a simple, reproducible developer experience across platforms (WSL/Linux/Windows).
Why now:
- LLVM AOT は一度実装を進めたが、Windows 依存が重くサイズも大きい。Cranelift に回帰して、純Rustで“Just Works”のDXを取り戻し、高速な反復開発を実現する（AOT/LLVMは資料として保持）。
Outcomes (Definition of Done):
- All MIR‑15 ops compile and execute via JIT with behavioral parity to VM.
- BoxCall/ExternCall are handled through NyRT shims (handle‑first ABI) safely.
- Sync GC barriers in place (read/write), async safepoints wired at call/loop edges.
- Smokes: echo/array/map/vinvoke/extern pass; parity checks vs VM/JIT (logs included).
- 1‑command setup and run on WSL + Windows Dev PowerShell; no external LLVM needed.
Backends Strategy:
- LLVM AOT はアーカイブ（参照は可）。主線は Cranelift（JIT/軽量AOT）。
- JIT 既定は Cranelift（feature:
cranelift-jit）。AOT は必要に応じcranelift-objectを併用。
This folder contains the living plan (PLAN.md) and the rolling snapshot of the current task focus (CURRENT_TASK.md). Semantics 層の導入により、Nyash スクリプト／VM／JIT（exe）の動作を一致させる。
JIT Single-Exit Policy and TRACE
- Single-Exit: JIT は関数終端で単一の ret ブロックに合流する方針。分岐合流は BlockParam（最小PHI）で表現し、
end_functionで最終 seal を行う。 - Branch Fast-Path: then/else がともに i64 定数を即時 return する場合、
select(cond, K_then, K_else)→returnに縮約（常時有効）。 - TRACE 環境変数（必要時のみON）:
NYASH_JIT_DUMP=1…… Lower の要約/CFGライトダンプを表示NYASH_JIT_TRACE_BLOCKS=1… ブロック入場ログ（[JIT-BLOCK] enter=<idx>）NYASH_JIT_TRACE_BR=1…… br_if の cond 有無ログNYASH_JIT_TRACE_SEL=1… select の cond/then/else 値（tag=100/101/102）NYASH_JIT_TRACE_RET=1… return 値ログ（tag=201=直前, 200=合流）
Notes:
- 旧フラグ
NYASH_JIT_FASTPATH_SELECTは不要になりました（存在しても無視）。