regress-774824.js 367 Bytes
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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

function f() {
  var a = new Set().values();
  a.outOfObjectProperty = undefined;
  %DeoptimizeNow();
  return !a;
}

f();
f();
%OptimizeFunctionOnNextCall(f);
f();