v8/test/mjsunit/compiler/escape-analysis-cycle.js

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// Copyright 2017 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
function g(o) {
return {a : o, b: 42, c: o};
}
function f() {
var o = {a: {}, b: 43};
o.a = g(g(o));
o.c = o.a.c;
%DeoptimizeNow();
return o.c.a.c.a.c.a.c.b;
}
%PrepareFunctionForOptimization(f);
assertEquals(42, f());
assertEquals(42, f());
%OptimizeFunctionOnNextCall(f);
assertEquals(42, f());