[clang] [llvm] [Driver] Add option to select compiler-rt arch suffix (PR #89775)

[Fangrui Song via cfe-commits]

MaskRay wrote:

> > I want to hear about opinions why the old compiler-rt file hierarchy is preferred by some users.
> 
> I think if you really want a range of opinions, you can get them from an RFC. Not many people will be watching this PR.

Perhaps @tru can make another comment to https://discourse.llvm.org/t/rfc-time-to-drop-legacy-runtime-paths/64628 and tag specific people.



https://github.com/llvm/llvm-project/pull/89775