var functions graph.Nodes
	functionNodes := make(map[string]graph.Nodes)
	for _, n := range g.Nodes {
		if !o.Symbol.MatchString(n.Info.Name) {
			continue
		}
		if functionNodes[n.Info.Name] == nil {
			functions = append(functions, n)
		}
		functionNodes[n.Info.Name] = append(functionNodes[n.Info.Name], n)
	}
	functions.Sort(graph.NameOrder)

	if len(functionNodes) == 0 {

// Then, based on the curve name, a function code and a block size will be assigned.
// If KDSA instruction is not available or if the curve is not supported, canUseKDSA
// will set ok to false.
func canUseKDSA(c elliptic.Curve) (functionCode uint64, blockSize int, ok bool) {
	if testingDisableKDSA {
		return 0, 0, false
	}
	if !cpu.S390X.HasECDSA {
		return 0, 0, false
	}
	switch c.Params().Name {
	case "P-256":
		return 1, 32, true

  std::vector<Node*> function_nodes;
  for (auto node : (*pruned_graph)->nodes()) {
    const OpRegistrationData* op_reg_data;
    TF_RETURN_IF_ERROR(library->LookUp(node->type_string(), &op_reg_data));
    if (op_reg_data->is_function_op) {
      function_nodes.push_back(node);
    }
  }
  for (auto node : function_nodes) {
    VLOG(2) << "Inlining function " << node->name();