The video is a short talk saying that Nintendo switched to LLVM.
Summary: “we switched to LLVM. It mostly worked out. We’re moving toward open source things, but we’re not allowed to say that much, and we’re not contributing much (yet).”
An important point he tried to make was debugging optimized code, and some ways to attack that problem. Though, there’s no mention of static analysis. I wonder how prevalent that is in games development?