918fe04351
PR-URL: https://github.com/nodejs/node/pull/58070 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
22 lines
699 B
JavaScript
22 lines
699 B
JavaScript
// Copyright 2024 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 --turbolev --turbofan
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// Flags: --no-always-turbofan
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function charCodeAt(idx) {
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return "abc".charCodeAt(idx);
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}
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%PrepareFunctionForOptimization(charCodeAt);
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assertSame(97, charCodeAt(0.0));
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%OptimizeFunctionOnNextCall(charCodeAt);
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assertSame(97, charCodeAt(0.0));
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assertOptimized(charCodeAt);
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// Using max-uint32+1 as index. This should trigger a deopt (and should
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// definitely not wrap around and be considered as 0!).
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assertSame(NaN, charCodeAt(4294967296));
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assertUnoptimized(charCodeAt);
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