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

[Yaxun Liu via cfe-commits]

yxsamliu wrote:

Gentle ping. The PR is green now, and I added the HIP E2E test plus the documentation pointer requested in the review thread. Could someone take another look when they get a chance?

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