// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Flags: --always-opt --allow-natives-syntax

try {
} catch (e) {
  ;
}
(function __f_12() {
})();
(function __f_6() {
  function __f_3() {
  }
  function __f_4() {
    try {
    } catch (e) {
    }
  };
  %PrepareFunctionForOptimization(__f_4);
  __f_4();
  %OptimizeFunctionOnNextCall(__f_4);
  __f_4();
})();
