[clang-tools-extra] [compiler-rt] [clang] [PGO] Exposing PGO's Counter Reset and File Dumping APIs (PR #76471)

[Qiongsi Wu via cfe-commits]

qiongsiwu wrote:

> thanks! Mostly lg with a pending discussion on whether we want to have test coverage for `clang_pgogen` in `compiler-rt/test/profile/instrprof-api.c`, and the open-ended discussion about the observed build failure in another compiler-rt test.

Thanks for the feedback! The latest commit aims at resolving most of the comments. I will look into the BE related failure. 

https://github.com/llvm/llvm-project/pull/76471