[PATCH] D66766: [SampleFDO] Add symbol whitelist section to discriminate function being cold versus function being newly added

[Wei Mi via Phabricator via llvm-commits]

wmi updated this revision to Diff 217745.
wmi added a comment.

Address David and Mandeep's comments.

Add symbol whitelist support in llvm-profdata. It supports reading in a text format symbols list and adding it to a profile. The output profile has to be ExtBinary format. llvm-profdata can control whether the symbol whitelist will be compressed or not, and whether it will be shown when dumping the profile.

With llvm-profdata, profile with symbol-whitelist used for testing can be generated given an existing text format profile and a text symbol list.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D66766/new/

https://reviews.llvm.org/D66766

Files:
  include/llvm/ProfileData/SampleProf.h
  include/llvm/ProfileData/SampleProfReader.h
  include/llvm/ProfileData/SampleProfWriter.h
  lib/ProfileData/SampleProf.cpp
  lib/ProfileData/SampleProfReader.cpp
  lib/ProfileData/SampleProfWriter.cpp
  lib/Transforms/IPO/SampleProfile.cpp
  test/Transforms/SampleProfile/Inputs/symbol-whitelist.text
  test/Transforms/SampleProfile/compressed-symbol-white-list.ll
  test/Transforms/SampleProfile/uncompressed-symbol-white-list.ll
  test/tools/llvm-profdata/Inputs/symbol-whitelist-1.text
  test/tools/llvm-profdata/Inputs/symbol-whitelist-2.text
  test/tools/llvm-profdata/Inputs/symbol-whitelist.expected
  test/tools/llvm-profdata/symbol-white-list.test
  tools/llvm-profdata/llvm-profdata.cpp
  unittests/ProfileData/SampleProfTest.cpp

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