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      1 // Copyright 2015 the V8 project authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Flags: --allow-natives-syntax
      6 
      7 function foo(x) {
      8   if (x === undefined) return;
      9   while (true) {
     10     while (1 || 2) { }
     11     f();
     12   }
     13 }
     14 %OptimizeFunctionOnNextCall(foo);
     15 foo();
     16