regress-727662.js 513 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 --expose-gc

(function() {
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function thingo(i, b) {
  var s = b ? "ac" : "abcd";
  i = i >>> 0;
  if (i < s.length) {
    var c = s.charCodeAt(i);
    gc();
    return c;
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  }
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};
%PrepareFunctionForOptimization(thingo);
thingo(0, true);
thingo(0, true);
%OptimizeFunctionOnNextCall(thingo);
thingo(0, true);
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})();