[PATCH] D68253: [SampleFDO] Add compression support for any section in ExtBinary profile format

[Wei Mi via Phabricator via llvm-commits]

wmi created this revision.
wmi added reviewers: davidxl, mtrofin.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.

Previously ExtBinary profile format only supports compression using zlib for profile symbol list. In this patch, we extend the compression support to any section. User can select some or all of the sections to compress. In an experiment, for a 45M profile in ExtBinary format, compressing name table reduced its size to 24M, and compressing all the sections reduced its size to 11M.


Repository:
  rL LLVM

https://reviews.llvm.org/D68253

Files:
  llvm/include/llvm/ProfileData/SampleProf.h
  llvm/include/llvm/ProfileData/SampleProfReader.h
  llvm/include/llvm/ProfileData/SampleProfWriter.h
  llvm/lib/ProfileData/SampleProf.cpp
  llvm/lib/ProfileData/SampleProfReader.cpp
  llvm/lib/ProfileData/SampleProfWriter.cpp
  llvm/test/Transforms/SampleProfile/profile-format-compress.ll
  llvm/test/tools/llvm-profdata/profile-symbol-list-compress.test
  llvm/test/tools/llvm-profdata/roundtrip-compress.test
  llvm/tools/llvm-profdata/llvm-profdata.cpp

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