[PATCH] D148188: [llvm-profdata] Make profile reader behavior consistent when encountering malformed profiles

[William Junda Huang via Phabricator via llvm-commits]

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Changes to the profile reader behavior (previously the behavior is bugged when encountering such scenario);

1. For extbinary format, when reading a second name table, the previous one is cleared (previously causes array out of bound)

2. Check if profile mixes MD5 and nonMD5 functions


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D148188

Files:
  llvm/include/llvm/ProfileData/SampleProfReader.h
  llvm/lib/ProfileData/SampleProfReader.cpp
  llvm/test/tools/llvm-profdata/Inputs/sample-multiple-nametables.profdata
  llvm/test/tools/llvm-profdata/Inputs/sample-nametable-after-samples.profdata
  llvm/test/tools/llvm-profdata/Inputs/sample-nametable-empty-string.profdata
  llvm/test/tools/llvm-profdata/sample-nametable.test

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