Files
hakorune/src/mir/phi_core/common.rs
nyash-codex f9d100ce01 chore: Phase 25.1 完了 - LoopForm v2/Stage1 CLI/環境変数削減 + Phase 26-D からの変更
Phase 25.1 完了成果:
-  LoopForm v2 テスト・ドキュメント・コメント完備
  - 4ケース(A/B/C/D)完全テストカバレッジ
  - 最小再現ケース作成(SSAバグ調査用)
  - SSOT文書作成(loopform_ssot.md)
  - 全ソースに [LoopForm] コメントタグ追加

-  Stage-1 CLI デバッグ環境構築
  - stage1_cli.hako 実装
  - stage1_bridge.rs ブリッジ実装
  - デバッグツール作成(stage1_debug.sh/stage1_minimal.sh)
  - アーキテクチャ改善提案文書

-  環境変数削減計画策定
  - 25変数の完全調査・分類
  - 6段階削減ロードマップ(25→5、80%削減)
  - 即時削除可能変数特定(NYASH_CONFIG/NYASH_DEBUG)

Phase 26-D からの累積変更:
- PHI実装改善(ExitPhiBuilder/HeaderPhiBuilder等)
- MIRビルダーリファクタリング
- 型伝播・最適化パス改善
- その他約300ファイルの累積変更

🎯 技術的成果:
- SSAバグ根本原因特定(条件分岐内loop変数変更)
- Region+next_iパターン適用完了(UsingCollectorBox等)
- LoopFormパターン文書化・テスト化完了
- セルフホスティング基盤強化

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: ChatGPT <noreply@openai.com>
Co-Authored-By: Task Assistant <task@anthropic.com>
2025-11-21 06:25:17 +09:00

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/*!
* phi_core::common shared types and invariants (scaffold)
*
* Phase 1 keeps this minimal; future phases may move debug asserts and
* predicate set checks here for both if/loop PHI normalization.
*/
/// Placeholder for future shared PHI input type alias.
/// Using the same tuple form as MIR Phi instruction inputs.
pub type PhiInput = (crate::mir::BasicBlockId, crate::mir::ValueId);
pub fn debug_verify_phi_inputs(
function: &crate::mir::MirFunction,
merge_bb: crate::mir::BasicBlockId,
inputs: &[(crate::mir::BasicBlockId, crate::mir::ValueId)],
) {
use std::collections::HashSet;
// Always compute when env toggle is set; otherwise no-op in release use.
let verify_on = std::env::var("HAKO_PHI_VERIFY")
.ok()
.map(|v| v.to_ascii_lowercase())
.map(|v| v == "1" || v == "true" || v == "on")
.unwrap_or(false)
|| std::env::var("NYASH_PHI_VERIFY")
.ok()
.map(|v| v.to_ascii_lowercase())
.map(|v| v == "1" || v == "true" || v == "on")
.unwrap_or(false);
if !verify_on {
return;
}
// Rebuild CFG to avoid stale predecessor sets
let mut func = function.clone();
func.update_cfg();
// Duplicate check
let mut seen = HashSet::new();
for (pred, _v) in inputs.iter() {
if *pred == merge_bb {
eprintln!("[phi/check][bad-self] merge={:?} pred={:?}", merge_bb, pred);
}
if !seen.insert(*pred) {
eprintln!("[phi/check][dup] merge={:?} pred={:?}", merge_bb, pred);
}
}
// Missing predecessor inputs check
if let Some(block) = func.blocks.get(&merge_bb) {
for pred in &block.predecessors {
let has = inputs.iter().any(|(bb, _)| bb == pred);
if !has {
eprintln!("[phi/check][missing] merge={:?} pred={:?}", merge_bb, pred);
}
}
}
}