ChakraCore/test/Array/TryGrowHeadSegmentBug.js at master · chakra-core/ChakraCore · GitHub

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//-------------------------------------------------------------------------------------------------------
// Copyright (C) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
//-------------------------------------------------------------------------------------------------------

//Bug number 101772
//flags: -forcejitloopbody -ForceArrayBTree -off:ArrayCheckHoist
var debugOn = false //if this test fails turn this flag on and see if the array is correct
function test0() {
    var ary = new Array(10);
    if(debugOn)
    {
        WScript.Echo("Contents of ary: ",ary.valueOf());
        WScript.Echo("Size of ary: ",ary.length);
    }
    for(var i = 0; i < 2;i++) // looks like just starting a loop is the problem
    {
        ary.indexOf();
        ary[11] = 1;
        ary[12] = 2;

         if(debugOn)
        {
            WScript.Echo("assign index 11 to 1. is it actually set:",ary[11]);
            WScript.Echo("assign index 12 to 2. is it actually set:",ary[12]);
        }
    }
    if(debugOn)
    {
        WScript.Echo("After Loop");
        WScript.Echo("is index 12 still 2? It is actually :",ary[12]);
        WScript.Echo("Contents of ary: ",ary.valueOf());
        WScript.Echo("Size of ary: ",ary.length);
    }
    ary[15] = 5; //if 26 this will pass
    if(debugOn)
    {
        WScript.Echo("assign index 15 to 5. is it actually set:",ary[15]);
        WScript.Echo("Contents of ary: ",ary.valueOf());
        WScript.Echo("Size of ary: ",ary.length);
    }
}
test0();
WScript.Echo("PASS");