5f2d828274
Bug: v8:7700 Change-Id: Id5fddd337635b2932bb1ab0609db38ecc72d95b4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3790961 Auto-Submit: Victor Gomes <victorgomes@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Victor Gomes <victorgomes@chromium.org> Cr-Commit-Position: refs/heads/main@{#82042}
36 lines
678 B
JavaScript
36 lines
678 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-stress-opt
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class A {
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foo() {
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return 42;
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}
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};
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class B extends A {
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bar() {
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return super.foo();
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}
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};
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class C {
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foo() {
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return 24;
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}
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};
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var o = new B();
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%PrepareFunctionForOptimization(o.bar);
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assertEquals(o.bar(), 42);
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%OptimizeMaglevOnNextCall(o.bar);
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assertEquals(o.bar(), 42);
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assertTrue(isMaglevved(o.bar));
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// This should deopt.
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o.__proto__.__proto__ = new C();
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assertEquals(o.bar(), 24);
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assertFalse(isMaglevved(o.bar));
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