34 lines
912 B
JavaScript
34 lines
912 B
JavaScript
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// 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(s) { return s.slice(-1); }
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assertEquals('', foo(''));
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assertEquals('a', foo('a'));
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assertEquals('b', foo('ab'));
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assertEquals('c', foo('abc'));
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%OptimizeFunctionOnNextCall(foo);
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assertEquals('', foo(''));
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assertEquals('a', foo('a'));
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assertEquals('b', foo('ab'));
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assertEquals('c', foo('abc'));
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})();
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(function() {
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function foo(s) { return s.slice(-1, undefined); }
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assertEquals('', foo(''));
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assertEquals('a', foo('a'));
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assertEquals('b', foo('ab'));
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assertEquals('c', foo('abc'));
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%OptimizeFunctionOnNextCall(foo);
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assertEquals('', foo(''));
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assertEquals('a', foo('a'));
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assertEquals('b', foo('ab'));
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assertEquals('c', foo('abc'));
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})();
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