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

[via llvm-commits]

https://github.com/WenleiHe commented:

> One potential issue of this patch is the increased binary size and compilation time.

Typically how much bigger is the .text size? 


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