[PATCH] D66985: [llvm-profdata] Recover from InstrProf read failures

[Vedant Kumar via Phabricator via llvm-commits]

vsk created this revision.
vsk added reviewers: davidxl, Dor1s, wmi.
Herald added a project: LLVM.

Do not treat malformed profile errors (and similar read failures) as
fatal. Make forward progress and report failure only if no inputs can be
read.

rdar://54843625


https://reviews.llvm.org/D66985

Files:
  llvm/test/tools/llvm-profdata/invalid-profdata.test
  llvm/test/tools/llvm-profdata/text-format-errors.test
  llvm/tools/llvm-profdata/llvm-profdata.cpp

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