v8/test/mjsunit/regress/regress-crbug-997057.js

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// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --no-lazy-feedback-allocation
arr0 = [];
var obj = {};
Array.prototype[12] = 10;
arr0 = [];
Array.prototype[0] = 153;
for (var elem in arr0) {
obj.length = {
toString: function () {
}
};
}
function baz() {
obj.length, arr0.length;
}
var arr = [{}, [], {}];
for (var i in arr) {
baz();
for (var j = 0; j < 100000; j++) {
}
}