13 lines
416 B
JavaScript
13 lines
416 B
JavaScript
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// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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function f(x) { return x === +x; }
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assertEquals(false, f(undefined));
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assertEquals(false, f(undefined));
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%OptimizeFunctionOnNextCall(f);
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assertEquals(false, f(undefined)); // Interestingly this fails right away.
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