return signalPassFailure();
  }

  // Run each of the passes that were selected.
  GraphConstructorOptions opts;
  opts.allow_internal_ops = true;
  opts.expect_device_spec = false;

  GraphOptimizationPassOptions options;
  SessionOptions sess_options;
  options.graph = &graph;
  options.flib_def = &flib_def;
  options.session_options = &sess_options;

  for (auto pass : passes_) {
    assert(pass != nullptr);

MlirV1CompatOptimizationPassRegistry::Global() {
  static auto* global = new MlirV1CompatOptimizationPassRegistry();
  return *global;
}

Status MlirV1CompatGraphOptimizationPass::Run(
    const GraphOptimizationPassOptions& options) {
  // Skip function graphs as MlirOptimizationPassRegistry_ will be used instead.
  // Skip if no underlying pass was registered.