// Copyright 2018 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 arr = [undefined]; function f() { assertEquals(0, arr.indexOf(undefined, -1)); }; %PrepareFunctionForOptimization(f); f(); f(); %OptimizeFunctionOnNextCall(f); f();