[clang] [compiler-rt] [llvm] [PGO][AMDGPU] Add uniformity-aware offload profile format and instrumentation (PR #190708)

[Joseph Huber via cfe-commits]

jhuber6 wrote:

@lfmeadow I don't think you should merge 30 minutes after accepting yourself a PR that touches such a wide swath of the LLVM infrastructure

https://github.com/llvm/llvm-project/pull/190708