Two ironies here: 1) clang and LLVM APIs are so unstable that tight integration effectively requires maintaining your own fork. 2) One of the original complai

Two ironies here: 1) clang and LLVM APIs are so unstable that tight integration effectively requires maintaining your own fork. 2) One of the original complaints about GCC was that Stallman stonewalled addition of a richer, stable plugin API. Fast forward to today, GCC plugins are now first-class and, AFAIU, the plugins API is more stable and dependable. OTOH, turns out people aren't using plugins as much as originally thought, though the Linux kernel infrastructure does.