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>
29 lines
666 B
JavaScript
29 lines
666 B
JavaScript
// Copyright 2023 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: --maglev --allow-natives-syntax --max-valid-polymorphic-map-count=100
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// Test based on regress-crbug-1445286.js; this will generate a lot of maps
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// which are passed to CheckMaps.
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const floats = new Float64Array(10);
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function f(proto) {
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const o = {
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__proto__: proto,
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};
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o.h = 1601;
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o.name;
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[v0, ...rest] = floats;
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return o;
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}
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%PrepareFunctionForOptimization(f);
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for (let i = 0; i < 100; ++i) {
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%OptimizeMaglevOnNextCall(f);
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f();
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const o = f({});
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o.h = v0;
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}
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