michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: var BUGNUMBER = 360681;
michael@0: var summary = 'Regression from bug 224128';
michael@0: var actual = '';
michael@0: var expect = '';
michael@0: 
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: test();
michael@0: //-----------------------------------------------------------------------------
michael@0: 
michael@0: function test()
michael@0: {
michael@0:   enterFunc ('test');
michael@0:   printBugNumber(BUGNUMBER);
michael@0:   printStatus (summary);
michael@0:  
michael@0:   expect = actual = 'No Crash';
michael@0: 
michael@0:   var N = 1000;
michael@0: 
michael@0: // Make an array with a hole at the end
michael@0:   var a = Array(N);
michael@0:   for (i = 0; i < N - 1; ++i)
michael@0:     a[i] = 1;
michael@0: 
michael@0: // array_sort due for array with N elements with allocates a temporary vector
michael@0: // with 2*N. Lets create strings that on 32 and 64 bit CPU cause allocation
michael@0: // of the same amount of memory + 1 word for their char arrays. After we GC
michael@0: // strings with a reasonable malloc implementation that memory will be most
michael@0: // likely reused in array_sort for the temporary vector. Then the bug causes
michael@0: // accessing the one-beyond-the-aloocation word and re-interpretation of
michael@0: // 0xFFF0FFF0 as GC thing.
michael@0: 
michael@0:   var str1 = Array(2*(2*N + 1) + 1).join(String.fromCharCode(0xFFF0));
michael@0:   var str2 = Array(4*(2*N + 1) + 1).join(String.fromCharCode(0xFFF0));
michael@0:   gc();
michael@0:   str1 = str2 = null;
michael@0:   gc();
michael@0: 
michael@0:   var firstCall = true;
michael@0:   a.sort(function (a, b) {
michael@0: 	   if (firstCall) {
michael@0: 	     firstCall = false;
michael@0: 	     gc();
michael@0: 	   }
michael@0: 	   return a - b;
michael@0: 	 });
michael@0: 
michael@0:   reportCompare(expect, actual, summary);
michael@0: 
michael@0:   exitFunc ('test');
michael@0: }