std::optional<const InfoT*> GetAnalysisIfExists(Region& region) const {
    auto it = info_map_.find(&region);
    if (it == info_map_.end()) return std::nullopt;
    return &it->second;
  }

  std::optional<const InfoT*> GetAnalysisIfExists(func::FuncOp func) const {
    return GetAnalysisIfExists(func.getBody());
  }

 private: