[PATCH] D147740: [llvm-profdata] Refactoring Sample Profile Reader to increase FDO build speed using MD5 as key to Sample Profile map

[William Junda Huang via Phabricator via llvm-commits]

huangjd updated this revision to Diff 531529.
huangjd added a comment.

Use hash_code for SampleContext.getHashValue() so that DenseMap does not hash the MD5 again inside the map (uint64_t get hashed again which is unnecessary here because MD5 is sufficiently sparse)


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D147740/new/

https://reviews.llvm.org/D147740

Files:
  llvm/include/llvm/ProfileData/SampleProf.h
  llvm/include/llvm/ProfileData/SampleProfReader.h
  llvm/lib/ProfileData/ProfileSummaryBuilder.cpp
  llvm/lib/ProfileData/SampleProf.cpp
  llvm/lib/ProfileData/SampleProfReader.cpp
  llvm/lib/ProfileData/SampleProfWriter.cpp
  llvm/lib/Transforms/IPO/SampleContextTracker.cpp
  llvm/test/tools/llvm-profdata/Inputs/sample-nametable-after-samples.profdata
  llvm/test/tools/llvm-profdata/sample-nametable.test
  llvm/tools/llvm-profdata/llvm-profdata.cpp
  llvm/tools/llvm-profgen/ProfileGenerator.cpp
  llvm/unittests/tools/llvm-profdata/CMakeLists.txt
  llvm/unittests/tools/llvm-profdata/MD5CollisionTest.cpp
  llvm/unittests/tools/llvm-profdata/OutputSizeLimitTest.cpp

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