// Copyright 2015 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: --allow-natives-syntax

function f(x) {
  while (1) { s++; }
  while (x) { s++; }
}

assertThrows(function () { f(1); });
