// 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 f1(a, i) {
  return a[i] + 0.5;
}
var arr = [,0.0,2.5];
%PrepareFunctionForOptimization(f1);
assertEquals(0.5, f1(arr, 1));
assertEquals(0.5, f1(arr, 1));
%OptimizeFunctionOnNextCall(f1);
assertEquals(0.5, f1(arr, 1));
Array.prototype.unshift(1.5);
assertEquals(2, f1(arr, 0));