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4f72291521
PR-URL: https://github.com/nodejs/node/pull/39945 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com>
35 lines
666 B
JavaScript
35 lines
666 B
JavaScript
// Copyright 2019 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 --opt
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class C extends Object {
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bla() {}
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}
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const bla = C.prototype.bla;
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function bar(c) {
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%TurbofanStaticAssert(c.bla === bla);
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}
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const boundC = C.bind(null);
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function foo() {
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let c = new boundC();
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bar(c);
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}
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%PrepareFunctionForOptimization(foo);
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%PrepareFunctionForOptimization(bar);
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%PrepareFunctionForOptimization(C);
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bar({});
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bar({a:1});
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bar({aa:1});
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bar({aaa:1});
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bar({aaaa:1});
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bar({aaaaa:1});
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foo();
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foo();
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%OptimizeFunctionForTopTier(foo);
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foo();
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