ChakraCore/test/fieldopts/fieldhoist5.js

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

var test = new Object();
test.nokill_singleuse = function(o, b)
{
    var x = 0;
    var y = 0;
    for (var i = 1; i < 10000; i++)
    {
        x = (o.x) & 0x3FFFF;
        o.x = x + y;
        y = (o.x) & 0xFFFF;
    }
    return x + y;
}

test.kill_singleuse = function(o, b)
{
    var x = 0;
    var y = 0;
    for (var i = 1; i < 10000; i++)
    {
        x = (o.x) & 0x3FFFF;
        b.x = x + y;
        y = (o.x) & 0xFFFF;
    }
    return x + y;
}

test.nokill_twouse_before = function(o, b)
{
    var x = 0;
    var y = 0;
    for (var i = 1; i < 10000; i++)
    {
        x = (o.x + o.x) & 0x3FFFF;
        o.x = x + y;
        y = (o.x) & 0xFFFF;
    }
    return x + y;
}

test.kill_twouse_before = function(o, b)
{
    var x = 0;
    var y = 0;
    for (var i = 1; i < 10000; i++)
    {
        x = (o.x + o.x + o.x + o.x + o.x) & 0x3FFFF;
        b.x = x + y;
        y = (o.x) & 0xFFFF;
    }
    return x + y;
}

test.nokill_multiuse_before = function(o, b)
{
    var x = 0;
    var y = 0;
    for (var i = 1; i < 10000; i++)
    {
        x = (o.x + o.x) & 0x3FFFF;
        o.x = x + y;
        y = (o.x) & 0xFFFF;
    }
    return x + y;
}

test.kill_multiuse_before = function(o, b)
{
    var x = 0;
    var y = 0;
    for (var i = 1; i < 10000; i++)
    {
        x = (o.x + o.x + o.x + o.x + o.x) & 0x3FFFF;
        b.x = x + y;
        y = (o.x) & 0xFFFF;
    }
    return x + y;
}

test.nokill_multiuse_after = function(o, b)
{
    var x = 0;
    var y = 0;
    for (var i = 1; i < 10000; i++)
    {
        x = (o.x) & 0x3FFFF;
        o.x = x + y;
        y = (o.x + o.x + o.x + o.x + o.x) & 0xFFFF;
    }
    return x + y;
}

test.kill_multiuse_after = function(o, b)
{
    var x = 0;
    var y = 0;
    for (var i = 1; i < 10000; i++)
    {
        x = (o.x) & 0x3FFFF;
        b.x = x + y;
        y = (o.x + o.x + o.x + o.x + o.x) & 0xFFFF;
    }
    return x + y;
}

test.nokill_multiuse_before_and_after = function(o, b)
{
    var x = 0;
    var y = 0;
    for (var i = 1; i < 10000; i++)
    {
        x = (o.x + o.x + o.x + o.x + o.x) & 0x3FFFF;
        o.x = x + y;
        y = (o.x + o.x + o.x + o.x + o.x) & 0xFFFF;
    }
    return x + y;
}

test.kill_multiuse_before_and_after = function(o, b)
{
    var x = 0;
    var y = 0;
    for (var i = 1; i < 10000; i++)
    {
        x = (o.x + o.x + o.x + o.x + o.x) & 0x3FFFF;
        b.x = x + y;
        y = (o.x + o.x + o.x + o.x + o.x) & 0xFFFF;
    }
    return x + y;
}

function runtest(name, func)
{
    var total_time = 0;
    var iter = 0;
    for (var i = 0; i < 1000; i++)
    {
        o = new Object();
        o.x = 1;
        var d = new Date();
        func(o, o);
        total_time += (new Date() - d);
        iter++;
        if (total_time > 1000)
        {
            break;
        }
    }
    var output = name;
    if (name.length < 40)
    {
        for (var i = 0; i < 40 - name.length; i++)
        {
            output += " ";
        }
    }
    WScript.Echo(output + ": " + (((total_time / iter) * 1000) | 0) + " (per 1000 iteration, executed " + iter + " iterations)");
}

for (var x in test)
{
    runtest(x, test[x]);
}