v8/test/mjsunit/regress/regress-crbug-644689-1.js

// 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

for (var i = 0; i < 1024; ++i) Object.prototype["i" + i] = i;

function foo() {
  [].push(1);
};
%PrepareFunctionForOptimization(foo);
foo();
foo();
%OptimizeFunctionOnNextCall(foo);
foo();