[compiler-rt] [compiler-rt] Initial support for builtins on GPU targets (PR #95304)

[Saleem Abdulrasool via llvm-commits]

compnerd wrote:

No, that patch is not valid - compiler-rt is a grab bag of libraries, we cannot design the build system for _just_ the builtins. If you want to build just the builtins, you need to configure the build accordingly to avoid the other libraries.

https://github.com/llvm/llvm-project/pull/95304