20 lines
454 B
JavaScript
20 lines
454 B
JavaScript
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// 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 --turbofan
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function f() {
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const a = {'x': 5};
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a.x = {};
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Object.freeze(a);
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return Object.is(a.x, 5)
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}
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%PrepareFunctionForOptimization(f);
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assertFalse(f());
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assertFalse(f());
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%OptimizeFunctionOnNextCall(f);
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assertFalse(f());
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assertOptimized(f);
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