[PATCH] D74124: [llvm-exegesis] Add a custom error for clustering

[Miloš Stojanović via Phabricator via llvm-commits]

mstojanovic created this revision.
mstojanovic added reviewers: courbet, gchatelet, petarj.
Herald added subscribers: tschuett, mgorny.
Herald added a project: LLVM.

All errors of type `Failure` are `StringError`s. In order for exit code mapping to detect that specifically a clustering error has occurred it needs to have a different type.

This patch also prepares D74085 <https://reviews.llvm.org/D74085> where termination `report_fatal_error()` will be replaced with emitting `StringError`s.


https://reviews.llvm.org/D74124

Files:
  llvm/tools/llvm-exegesis/lib/CMakeLists.txt
  llvm/tools/llvm-exegesis/lib/Clustering.cpp
  llvm/tools/llvm-exegesis/lib/Error.cpp
  llvm/tools/llvm-exegesis/lib/Error.h
  llvm/tools/llvm-exegesis/llvm-exegesis.cpp

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