You'll get a much better view about what it does and doesn't do by spending same amount of time looking at it yourself and maybe trying to take that back to the comments here where there is a decent chance at least a massively larger portion of the comments aren't bots or memes.
Any way, for what it's worth, I tried it, using a random code; Unable to compile; Does not support c17, apparently;
Please take the time to run llvm's test suite with it and share the results !
(but it does not really matter)
edit: it does not matter because we'd need something new or something better; It fails on both accounts;