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// Copyright 2018 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: --opt --no-always-opt --allow-natives-syntax
(() => {
function f(s) {
return s.charAt();
};
%PrepareFunctionForOptimization(f);
f('');
f("");
%OptimizeFunctionOnNextCall(f);
f("");
})();
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