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2dcc3665ab
PR-URL: https://github.com/nodejs/node/pull/28016 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Refael Ackermann (רפאל פלחי) <refack@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
61 lines
1.4 KiB
JavaScript
61 lines
1.4 KiB
JavaScript
// Copyright 2017 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() {
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function foo(x) { return Number.isNaN(x); }
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%PrepareFunctionForOptimization(foo);
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assertTrue(foo(+undefined));
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assertFalse(foo(undefined));
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%OptimizeFunctionOnNextCall(foo);
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assertTrue(foo(+undefined));
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assertFalse(foo(undefined));
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})();
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(function() {
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function foo(x) { return Number.isNaN(+x); }
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%PrepareFunctionForOptimization(foo);
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assertTrue(foo(+undefined));
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assertFalse(foo(0));
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%OptimizeFunctionOnNextCall(foo);
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assertTrue(foo(+undefined));
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assertFalse(foo(0));
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})();
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(function() {
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function foo(x) { return Number.isNaN(x|0); }
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%PrepareFunctionForOptimization(foo);
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assertFalse(foo(+undefined));
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assertFalse(foo(0));
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%OptimizeFunctionOnNextCall(foo);
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assertFalse(foo(+undefined));
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assertFalse(foo(0));
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})();
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(function() {
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function foo(x) { return Number.isNaN("" + x); }
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%PrepareFunctionForOptimization(foo);
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assertFalse(foo(undefined));
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assertFalse(foo(0));
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%OptimizeFunctionOnNextCall(foo);
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assertFalse(foo(undefined));
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assertFalse(foo(0));
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})();
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(function() {
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function foo(x) { return Number.isNaN(0/0); }
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%PrepareFunctionForOptimization(foo);
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assertTrue(foo());
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assertTrue(foo());
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%OptimizeFunctionOnNextCall(foo);
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assertTrue(foo());
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assertTrue(foo());
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})();
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