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fd4f80ce54
PR-URL: https://github.com/nodejs/node/pull/42657 Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Richard Lau <rlau@redhat.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com>
30 lines
678 B
JavaScript
30 lines
678 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 --verify-heap --turbo-store-elimination
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// Check that transitioning stores are not eliminated.
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let obj = { a: 42 }
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function foo() {
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// Force GC on the next allocation to trigger heap verification.
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%SimulateNewspaceFull();
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// Transitioning store. Must not be eliminated.
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this.f = obj;
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this.f = {
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a: 43
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};
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}
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%PrepareFunctionForOptimization(foo);
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var a;
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a = new foo();
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a = new foo();
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%OptimizeFunctionOnNextCall(foo);
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a = new foo();
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assertEquals(43, a.f.a);
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