// initializers. The initializer functions are validated for whether it can be
// moved to the main function. Returns failure() iff validation fails.
FailureOr<absl::flat_hash_map<std::string, func::FuncOp>> GetInitFuncOps(
    ModuleOp module_op) {
  absl::flat_hash_map<std::string, func::FuncOp> init_func_ops;

  for (func::FuncOp init_func_op : GetInitializerFunctions(module_op)) {
    if (failed(ValidateInitFunc(init_func_op))) {