31a3cfbc10
BUG=v8:8801 Change-Id: I9d9d9824c6c9ad0176bbfd3723da1b578b17c256 Reviewed-on: https://chromium-review.googlesource.com/c/1495555 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#60001}
36 lines
992 B
JavaScript
36 lines
992 B
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(s) { return s.slice(-1); }
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%PrepareFunctionForOptimization(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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%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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%PrepareFunctionForOptimization(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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%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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