// 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

var foo = 0;

function bar() {
  var baz = 0 - {};
  if (foo > 24) return baz * 0;
}

bar();
bar();
%OptimizeFunctionOnNextCall(bar);
bar();
