[all-commits] [llvm/llvm-project] d7ef0c: [llvm-profdata] Improve profile supplementation

[xur-llvm via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d7ef0c3970c238af40f3d184f900d20fd2308d7f
      https://github.com/llvm/llvm-project/commit/d7ef0c3970c238af40f3d184f900d20fd2308d7f
  Author: Rong Xu <xur at google.com>
  Date:   2022-08-29 (Mon, 29 Aug 2022)

  Changed paths:
    M llvm/include/llvm/ProfileData/InstrProf.h
    M llvm/lib/ProfileData/InstrProf.cpp
    M llvm/lib/ProfileData/ProfileSummaryBuilder.cpp
    M llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp
    A llvm/test/Transforms/PGOProfile/Inputs/sample-profile-hot.proftext
    A llvm/test/Transforms/PGOProfile/Inputs/sample-profile-warm.proftext
    R llvm/test/Transforms/PGOProfile/Inputs/sample-profile.proftext
    M llvm/test/Transforms/PGOProfile/Inputs/suppl-profile.proftext
    M llvm/test/Transforms/PGOProfile/suppl-profile.ll
    M llvm/test/tools/llvm-profdata/Inputs/overflow-instr.proftext
    A llvm/test/tools/llvm-profdata/Inputs/pseudo-count-hot.proftext
    A llvm/test/tools/llvm-profdata/Inputs/pseudo-count-warm.proftext
    M llvm/test/tools/llvm-profdata/overflow-instr.test
    A llvm/test/tools/llvm-profdata/pseudo_count.test
    M llvm/test/tools/llvm-profdata/suppl-instr-with-sample-static-func.test
    M llvm/test/tools/llvm-profdata/suppl-instr-with-sample.test
    M llvm/tools/llvm-profdata/llvm-profdata.cpp
    M llvm/unittests/ProfileData/InstrProfTest.cpp

  Log Message:
  -----------
  [llvm-profdata] Improve profile supplementation

Current implementation promotes a non-cold function in the SampleFDO profile
into a hot function in the FDO profile. This is too aggressive. This patch
promotes a hot functions in the SampleFDO profile into a hot function, and a
warm function in SampleFDO into a warm function in FDO.

Differential Revision: https://reviews.llvm.org/D132601