You can make a perfectly stable IR from that Kaleidoscope example in no time and still avoid tying yourself to C++ish LLVM. I'm not sure how big of a deal that

You can make a perfectly stable IR from that Kaleidoscope example in no time and still avoid tying yourself to C++ish LLVM. I'm not sure how big of a deal that stability thing is though, you still have to cover everything with tests, so who cares if it breaks a bit in future releases?