text: // 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
  
  var x = 1;
  var y = 1;
  
  function g(a) {
   x = a;
   y = a;
  }
  %NeverOptimizeFunction(g);
  
  function foo(a) {
   g(a);
   return x + y;
  }
  
  var o = 1;
  assertEquals(foo(o), 2);
  assertEquals(foo(o), 2);
  %OptimizeFunctionOnNextCall(foo);
  o = 2;
  assertEquals(foo(o), 4);
  