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>
25 lines
561 B
JavaScript
25 lines
561 B
JavaScript
// Copyright 2022 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 --maglev --no-always-turbofan
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var x = 1;
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function f(o) {
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return x;
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}
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%PrepareFunctionForOptimization(f);
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assertEquals(1, f());
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%OptimizeMaglevOnNextCall(f);
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assertEquals(1, f());
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assertTrue(isMaglevved(f));
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// Trigger a lazy deopt now, so that f() deopts on its next call.
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x = 2;
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assertFalse(isMaglevved(f));
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assertUnoptimized(f);
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assertEquals(2, f());
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