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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: --allow-natives-syntax
let o1 = { x: 999 };
o1.y = 999;
// o2 will share map with o1 in its initial state
var o2 = { x: 1 };
function f() { return o2.x; }
assertEquals(1, f());
assertEquals(1, f());
%OptimizeFunctionOnNextCall(f);
assertEquals(1, f());
delete o2.x;
o2.x = 2;
assertEquals(2, f());
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