I had a similar (I think) experience when building LLVM from source a few years ago.

I kept running into some problem with LLVM's support for HIP code, even though I had not interest in having that functionality.

I realize this isn't exactly an AMD problem, but IIRC it was they were who contributed the troublesome code to LLVM, and it remained unfixed.

Apologies if there's something unfair or uninformed in what I wrote, it's been a while.