a7cbf19a82
PR-URL: https://github.com/nodejs/node/pull/38273 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com> Reviewed-By: Mary Marchini <oss@mmarchini.me>
26 lines
663 B
JavaScript
26 lines
663 B
JavaScript
// Copyright 2021 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 --gc-interval=500 --stress-compaction
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function bar(a) {
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return Object.defineProperty(a, 'x', {get() { return 1; }});
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}
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function foo() {
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return {};
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}
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%NeverOptimizeFunction(bar);
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%PrepareFunctionForOptimization(foo);
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const o = foo(); // Keep a reference so the GC doesn't kill the map.
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%SimulateNewspaceFull();
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bar(o);
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const a = bar(foo());
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%SimulateNewspaceFull();
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%OptimizeFunctionOnNextCall(foo);
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const b = bar(foo());
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assertTrue(%HaveSameMap(a, b));
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