The Tor Browser: js/src/tests/js1_6/extensions/regress-456826.js@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 // |reftest| skip-if(!xulRuntime.shell||Android) slow -- bug 504632

     2 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     3 /* This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 //-----------------------------------------------------------------------------

     8 var BUGNUMBER = 456826;

     9 var summary = 'Do not assert with JIT during OOM';

    10 var actual = 'No Crash';

    11 var expect = 'No Crash';

    14 //-----------------------------------------------------------------------------

    15 test();

    16 //-----------------------------------------------------------------------------

    18 function test()

    19 {

    20   enterFunc ('test');

    21   printBugNumber(BUGNUMBER);

    22   printStatus (summary);

    24   jit(true);

    26   if (typeof gcparam != 'undefined')

    27   {

    28     gc();

    29     gc();

    30     gcparam("maxBytes", gcparam("gcBytes") + 4*1024);

    31     expectExitCode(5);

    32   }

    34   const numRows = 600;

    35   const numCols = 600;

    36   var scratch = {};

    37   var scratchZ = {};

    39   function complexMult(a, b) {

    40     var newr = a.r * b.r - a.i * b.i;

    41     var newi = a.r * b.i + a.i * b.r;

    42     scratch.r = newr;

    43     scratch.i = newi;

    44     return scratch;

    45   }

    47   function complexAdd(a, b) {

    48     scratch.r = a.r + b.r;

    49     scratch.i = a.i + b.i;

    50     return scratch;

    51   }

    53   function abs(a) {

    54     return Math.sqrt(a.r * a.r + a.i * a.i);

    55   }

    57   function computeEscapeSpeed(c) {

    58     scratchZ.r = scratchZ.i = 0;

    59     const scaler = 5;

    60     const threshold = (colors.length - 1) * scaler + 1;

    61     for (var i = 1; i < threshold; ++i) {

    62       scratchZ = complexAdd(c, complexMult(scratchZ, scratchZ));

    63       if (scratchZ.r * scratchZ.r + scratchZ.i * scratchZ.i > 4) {

    64         return Math.floor((i - 1) / scaler) + 1;

    65       }

    66     }

    67     return 0;

    68   }

    70   const colorStrings = [

    71     "black",

    72     "green",

    73     "blue",

    74     "red",

    75     "purple",

    76     "orange",

    77     "cyan",

    78     "yellow",

    79     "magenta",

    80     "brown",

    81     "pink",

    82     "chartreuse",

    83     "darkorange",

    84     "crimson",

    85     "gray",

    86     "deeppink",

    87     "firebrick",

    88     "lavender",

    89     "lawngreen",

    90     "lightsalmon",

    91     "lime",

    92     "goldenrod"

    93     ];

    95   var colors = [];

    97   function createMandelSet(realRange, imagRange) {

    98     var start = new Date();

   100     // Set up our colors

   101     for each (var color in colorStrings) {

   102         var [r, g, b] = [0, 0, 0];

   103         colors.push([r, g, b, 0xff]);

   104       }

   106     var realStep = (realRange.max - realRange.min)/numCols;

   107     var imagStep = (imagRange.min - imagRange.max)/numRows;

   108     for (var i = 0, curReal = realRange.min;

   109          i < numCols;

   110          ++i, curReal += realStep) {

   111       for (var j = 0, curImag = imagRange.max;

   112            j < numRows;

   113            ++j, curImag += imagStep) {

   114         var c = { r: curReal, i: curImag }

   115         var n = computeEscapeSpeed(c);

   116       }

   117     }

   118     print(Date.now() - start);

   119   }

   121   var realRange = { min: -2.1, max: 2 };

   122   var imagRange = { min: -2, max: 2 };

   123   createMandelSet(realRange, imagRange);

   125   jit(false);

   127   reportCompare(expect, actual, summary);

   129   exitFunc ('test');

   130 }

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