[PATCH] D118390: [InstrProf] Make the IndexedInstrProf header backwards compatible.

[Snehasish Kumar via Phabricator via llvm-commits]

snehasish created this revision.
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While the contents of the profile are backwards compatible the header
itself is not. For example, when adding new fields to the header results
in significant issues. This change adds allows for portable
instantiation of the header across indexed format versions.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D118390

Files:
  llvm/include/llvm/ProfileData/InstrProf.h
  llvm/lib/ProfileData/InstrProf.cpp
  llvm/lib/ProfileData/InstrProfReader.cpp

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