// 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.

try {
(function () {
})();
} catch(e) {; }
  function __f_113() {
  }
(function () {
function __f_89() {
  "use asm";
  function __f_63(__v_26, __v_28) {
    __v_26 = __v_26|0;
    __v_28 = __v_28|0;
  }
  function __f_21(table_id, fun_id, arg1, arg2) {
    table_id = table_id|0;
    fun_id = fun_id|0;
    arg1 = arg1|0;
    arg2 = arg2|0;
  }
  var __v_17 = [];
}
var module = __f_89();
})();
