[llvm] [PGO] Sampled instrumentation in PGO to speed up instrumentation binary (PR #69535)

[via llvm-commits]

xur-llvm wrote:

I think this was due to compiler-rt/include/profile/InstrProfData.inc  not synced to llvm/include/llvm/ProfileData/InstrProfData.inc.

https://github.com/llvm/llvm-project/pull/69535