[Bug target/114419] amdgcn offload compiler fails to build with amdgcn tools based on LLVM 18

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114419

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
We need to document llvm requirements here I guess (and stick to llvm17 or
lower for now).