v8/test/mjsunit/regress/regress-crbug-658185.js

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// Copyright 2016 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: --allow-natives-syntax --turbo-escape
var t = 0;
function foo() {
var o = {x:1};
var p = {y:2.5, x:0};
o = [];
for (var i = 0; i < 2; ++i) {
t = o.x;
o = p;
}
}
foo();
foo();
%OptimizeFunctionOnNextCall(foo);
foo();