(author here) Just wanted to say that I have seen the comments and will address them when I have a chance. My post turned out to be a lot more popular than I an

(author here) Just wanted to say that I have seen the comments and will address them when I have a chance. My post turned out to be a lot more popular than I anticipated and I was busy yesterday and today. I wrote most of this in summer 2017, so given the popularity I will also provide a refresh with today's state of LLVM. Please keep corrections to my post coming, the time to determine and influence GC design restrictions in LLVM is now. Before a popular GCed language comes along and then tramples whatever its current GC happens to be into the status quo.