[all-commits] [llvm/llvm-project] b4bceb: [PGO] Add a functionality to always instrument the...

[xur-llvm via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: b4bceb94eeb3def8b164a0039b29379e83c00f0d
      https://github.com/llvm/llvm-project/commit/b4bceb94eeb3def8b164a0039b29379e83c00f0d
  Author: Rong Xu <xur at google.com>
  Date:   2020-06-26 (Fri, 26 Jun 2020)

  Changed paths:
    M llvm/lib/Transforms/Instrumentation/CFGMST.h
    M llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp
    A llvm/test/Transforms/PGOProfile/instr_entry_bb.ll

  Log Message:
  -----------
  [PGO] Add a functionality to always instrument the func entry BB

Add an option to always instrument function entry BB (default off)
Add an option to do atomically updates on the first counter in each
instrumented function.

Differential Revision: https://reviews.llvm.org/D82123