IsCompilableNode(node, lib_runtime, &stack_trace,
                   /*encapsulating_function=*/nullptr, &uncompilable_nodes);
  return uncompilable_nodes;
}

bool RecursiveCompilabilityChecker::HasXLAKernel(
    const Node& node, string* uncompilable_reason) const {
  // There is a SymbolicGradient kernel on the XLA_JIT device, but the gradient
  // is really a kind of function call and will be handled by

    auto is_variant = [](DataType dtype) { return dtype == DT_VARIANT; };
    return absl::c_any_of(node.input_types(), is_variant) ||
           absl::c_any_of(node.output_types(), is_variant);
  }

  bool HasXLAKernel(const Node& node,
                    string* uncompilable_reason = nullptr) const;

  static void MaybeMarkUncompilableNode(
      const absl::string_view reason,
      const std::vector<StackFrameView>& stack_trace,