v8/test/mjsunit/regress/regress-3380.js

// Copyright 2014 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 foo(a) {
  return a[0] >>> 0 > 0;
};
%PrepareFunctionForOptimization(foo);
var a = new Uint32Array([4]);
var b = new Uint32Array([0x80000000]);
assertTrue(foo(a));
assertTrue(foo(a));
%OptimizeFunctionOnNextCall(foo);
assertTrue(foo(b));