regress-math-sign-nan-type.js 318 Bytes
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// 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

function f(a) {
  return Math.sign(+a) < 2;
}

f(NaN);
f(NaN);
%OptimizeFunctionOnNextCall(f);
assertFalse(f(NaN));