v8/test/mjsunit/regress/regress-deoptimize-constant-keyed-load.js

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// Copyright 2015 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
var o = { };
o.__defineGetter__("progressChanged", function() { %DeoptimizeFunction(f); return 10; })
function g(a, b, c) {
return a + b + c;
}
function f() {
var t="progressChanged";
return g(1, o[t], 100);
}
f();
f();
%OptimizeFunctionOnNextCall(f);
assertEquals(111, f());