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>
24 lines
684 B
JavaScript
24 lines
684 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 deopt(x) {
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if (x) { return 42; }
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else {
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// We won't gather feedback for this during feedback collection, so
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// Maglev will generate an unconditional deopt for this branch.
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return x + 17;
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}
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}
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%PrepareFunctionForOptimization(deopt);
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assertEquals(42, deopt(1));
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%OptimizeFunctionOnNextCall(deopt);
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assertEquals(42, deopt(1));
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assertOptimized(deopt);
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assertEquals(17, deopt(0));
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assertUnoptimized(deopt);
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