[clang] [compiler-rt] [libc] [llvm] [Clang][AMDGPU] Remove special handling for COV4 libraries (PR #132870)

[Joseph Huber via llvm-commits]

jhuber6 wrote:

> I'm confused about where this leaves the device library build. It's still using the none code object version flag, and IIRC it had a mix of its own reimplementation of this plus use of some of the builtins.

Hm, you're probably right that the ROCm DL was relying on the split codegen but didn't use the global. I could leave that in and just remove emitting the global every time.

https://github.com/llvm/llvm-project/pull/132870