// 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: --allow-natives-syntax

function r(v) { return v.f }
function h() { }
function y(v) {
  var x = arguments;
  h.apply(r(v), x);
};

y({f:3});
y({f:3});
y({f:3});

%OptimizeFunctionOnNextCall(y);

y({ f : 3, u : 4 });
