// Copyright 2023 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(x) {
  return Object.is((x ? -0 : NaN) - 0, -0);
}

let ignition = foo(true);
%PrepareFunctionForOptimization(foo);
foo();
%OptimizeFunctionOnNextCall(foo);
let turbofan = foo(true);
assertTrue(ignition);
assertTrue(turbofan);