[PATCH] D129001: [PGO] Report number of counts being dropped when a hash-mismatch happens.

[Rong Xu via Phabricator via llvm-commits]

xur created this revision.
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This patch reports number of counts being dropped when a hash-mismatch
happens. This information will be helpful to the users -- if the dropped
counts are large, the user should redo the instrumentation build and
recollect the profile.


https://reviews.llvm.org/D129001

Files:
  llvm/include/llvm/ProfileData/InstrProfReader.h
  llvm/lib/ProfileData/InstrProfReader.cpp
  llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp
  llvm/test/Transforms/PGOProfile/Inputs/diag.proftext
  llvm/test/Transforms/PGOProfile/diag_mismatch.ll

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