regress-733181.js 555 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 l(s) {
  return ("xxxxxxxxxxxxxxxxxxxxxxx" + s).toLowerCase();
}

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%PrepareFunctionForOptimization(l);
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l("abcd");
l("abcd");
%OptimizeFunctionOnNextCall(l);
l("abcd");

function u(s) {
  return ("xxxxxxxxxxxxxxxxxxxxxxx" + s).toUpperCase();
}

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%PrepareFunctionForOptimization(u);
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u("abcd");
u("abcd");
%OptimizeFunctionOnNextCall(u);
u("abcd");