fix(mir): PHI検証panic修正 - update_cfg()を検証前に呼び出し
A案実装: debug_verify_phi_inputs呼び出し前にCFG predecessorを更新
修正箇所(7箇所):
- src/mir/builder/phi.rs:50, 73, 132, 143
- src/mir/builder/ops.rs:273, 328, 351
根本原因:
- Branch/Jump命令でsuccessorは即座に更新
- predecessorはupdate_cfg()で遅延再構築
- PHI検証が先に実行されてpredecessor未更新でpanic
解決策:
- 各debug_verify_phi_inputs呼び出し前に
if let Some(func) = self.current_function.as_mut() {
func.update_cfg();
}
を挿入してCFGを同期
影響: if/else文、論理演算子(&&/||)のPHI生成が正常動作
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@ -5,7 +5,7 @@ using "lang/src/vm/mini_vm_lib.hako" as MiniVm
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static box Main {
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main(args) {
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@json = "{\"kind\":\"Program\",\"statements\":[{\"kind\":\"Print\",\"expression\":{\"kind\":\"Literal\",\"value\":{\"type\":\"int\",\"value\":42}}}]}"
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if args { if args.size() > 0 { @s = args.get(0) if s { json = s } } }
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if args { if args.length() > 0 { @s = args.get(0) if s { json = s } } }
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return new MiniVm().run(json)
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}
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}
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