src/third_party/mozjs-45/js/src/tests/js1_8_1/jit/regress-451974-02.js

// |reftest| skip -- bogus perf test (bug 540512)
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

//-----------------------------------------------------------------------------
var BUGNUMBER = 451974;
var summary = 'TM: loops with anon functions should not be slower with jit enabled';
var actual = '';
var expect = '';


//-----------------------------------------------------------------------------
test();
//-----------------------------------------------------------------------------

function test()
{
  enterFunc ('test');
  printBugNumber(BUGNUMBER);
  printStatus (summary);

  var chars = '0123456789abcdef';
  var size = 10000;
  var mult = 1000;
  var densearray = [];
  var lsize = size;

  while (lsize--) 
  { 
    densearray.push(chars); 
  }

  function loop()
  {
    var start = new Date();

    for (var a = 0; a < mult; a++) 
    {
      var f = (function(x){}); 
      for (var i = 0, len = densearray.length; i < len; i++) 
      { 
        f(densearray[i]); 
      }
    }

    var stop = new Date();
    return stop - start;
  }

  jit(false);
  var timenonjit = loop();
  jit(true);
  var timejit = loop();
  jit(false);

  print('time: nonjit = ' + timenonjit + ', jit = ' + timejit);

  expect = true;
  actual = timejit < timenonjit/2;

  reportCompare(expect, actual, summary);

  exitFunc ('test');
}