FunctionLibraryDefinition* flib_def,
                         absl::flat_hash_set<Node*>* control_ret_nodes) {
  mlir::StringAttr entry_func_id =
      mlir::StringAttr::get(module.getContext(), "main");
  std::optional<FuncOp> entry_func;
  FunctionLibraryDefinition temp_flib_def(OpRegistry::Global(),
                                          FunctionDefLibrary());