[PATCH] D148868: [llvm-profdata] ProfileReader cleanup - preparation for MD5 refactoring

[William Junda Huang via Phabricator via llvm-commits]

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Cleanup profile reader classes to prepare for complex refactoring as propsed in D147740 <https://reviews.llvm.org/D147740> (Use MD5 as key for profile map). Change is too complicated so I am cleaning up the reader implementation first with these goals.

- Reduce duplicated/similar logic
- Reduce virtual functions, changing them to non-virtual
- Reduce unnecessry checks, indirections, and dead writes.

This is patch 1/n. This patch refactors NameTable


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D148868

Files:
  llvm/include/llvm/ProfileData/SampleProfReader.h
  llvm/lib/ProfileData/SampleProfReader.cpp

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