// Copyright 2013 the V8 project authors. All rights reserved.
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// modification, are permitted provided that the following conditions are
// met:
//
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// Flags: --allow-natives-syntax --parallel-recompilation

function f(foo) { return foo.bar(); }

var o = {};
o.__proto__ = { __proto__: { bar: function() { return 1; } } };

assertEquals(1, f(o));
assertEquals(1, f(o));

%OptimizeFunctionOnNextCall(f, "parallel");
assertEquals(1, f(o));
// Change the prototype chain during optimization.
o.__proto__.__proto__ = { bar: function() { return 2; } };

%WaitUntilOptimized(f);

assertEquals(2, f(o));