31a3cfbc10
BUG=v8:8801 Change-Id: I9d9d9824c6c9ad0176bbfd3723da1b578b17c256 Reviewed-on: https://chromium-review.googlesource.com/c/1495555 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#60001}
32 lines
776 B
JavaScript
32 lines
776 B
JavaScript
// Copyright 2017 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 --turbo-escape
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var mp = Object.getPrototypeOf(0);
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function getRandomProperty(v) {
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var properties;
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if (mp) { properties = Object.getOwnPropertyNames(mp); }
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if (properties.includes("constructor") && v.constructor.hasOwnProperty()) {; }
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if (properties.length == 0) { return "0"; }
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return properties[NaN];
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}
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var c = 0;
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function f() {
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c++;
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if (c === 3) %OptimizeFunctionOnNextCall(f);
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if (c > 4) throw 42;
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for (var x of ["x"]) {
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getRandomProperty(0) ;
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f();
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%_DeoptimizeNow();
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}
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}
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%PrepareFunctionForOptimization(f);
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assertThrowsEquals(f, 42);
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