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17a74ddd3d
PR-URL: https://github.com/nodejs/node/pull/49639 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
45 lines
1.1 KiB
JavaScript
45 lines
1.1 KiB
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 --turbofan --no-always-turbofan
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// Flags: --turboshaft-enable-debug-features
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function f(x) {
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// TODO(v8:11457) If v8_dict_property_const_tracking is enabled, then the
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// prototype of |x| in |main| is a dictionary mode object, and we cannot
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// inline the storing of x.foo, yet.
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if (!%IsDictPropertyConstTrackingEnabled()) {
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%TurbofanStaticAssert(x.foo === 42);
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}
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return %IsBeingInterpreted();
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}
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function main(b, ret) {
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const x = new Object();
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const y = x;
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if (b) {
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return ret;
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} else {
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x.foo = 42;
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out = x; // Prevent x's new map from dying too early.
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return f(y);
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}
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}
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%PrepareFunctionForOptimization(f);
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%PrepareFunctionForOptimization(main);
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f({a: 1});
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f({b: 1});
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f({c: 1});
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f({d: 1});
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assertTrue(main(true, true));
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assertTrue(main(true, true));
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assertTrue(main(false, true));
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assertTrue(main(false, true));
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%OptimizeFunctionOnNextCall(main);
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assertFalse(main(false));
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