This is true and is precisely why it doesn't work without modification on higher optimization levels. I was originally going to write this article entirely in a

This is true and is precisely why it doesn't work without modification on higher optimization levels. I was originally going to write this article entirely in assembly but it seems like nobody wants to read an assembly dump! Instead even though it is malpractice to do so, the way the code is written in the article is still very clear even to people who don't really know assembly that well (I hope) and the concept is more clear. I will make that more clear in the article.