[clang] [llvm] [openmp] [OpenMP] Use generic IR for the OpenMP DeviceRTL (PR #119091)

[Joseph Huber via llvm-commits]

jhuber6 wrote:

> @jhuber6, since I think this PR makes #119006 obsolete, should I merge that one while this one's still in the works, or close it?

I wouldn't say it's high priority. I would've landed this already if it weren't for the downstream fork being so divergent this isn't an easy apply.

https://github.com/llvm/llvm-project/pull/119091