// 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-syntaxfunctionf(a){returnMath.sign(+a)<2;}f(NaN);f(NaN);%OptimizeFunctionOnNextCall(f);assertFalse(f(NaN));