[PATCH] D82123: [PGO] Add a functionality to always instrument the func entry BB

[Rong Xu via Phabricator via llvm-commits]

xur created this revision.
xur added reviewers: wmi, davidxl.
Herald added subscribers: jfb, hiraditya.
Herald added a project: LLVM.

Add an option to always instrument function entry BB (default off)
Add an options to do atomic update the first counter in each instrumented function.


https://reviews.llvm.org/D82123

Files:
  llvm/lib/Transforms/Instrumentation/CFGMST.h
  llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp
  llvm/test/Transforms/PGOProfile/instr_entry_bb.ll

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