function foo(array) {
    var result = 0;
    for (var i = 0; i < array.length; i += 2)
        result += array[i] + array[i + 1];
    return result;
}

noInline(foo);

var array = [1, 2, 3, 4];
for (var i = 0; i < 10000; ++i) {
    var result = foo(array);
    if (result != 10)
        throw "Error: bad result in loop: " + result;
}

var array = [1, 2, 3];
var result = foo(array);
if ("" + result != "NaN")
    throw "Error: bad result at end: " + result;