[PATCH] D151020: [llvm-exegesis] Add ability to assign perf counters to specific PID

[Aiden Grossman via Phabricator via llvm-commits]

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This patch gives the ability to assign performance counters within
llvm-exegesis to a specific process by passing its PID. This is needed
later on for implementing a subprocess executor. Defaults to zero, the
current process, for the InProcessFunctionExecutorImpl.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D151020

Files:
  llvm/tools/llvm-exegesis/lib/PerfHelper.cpp
  llvm/tools/llvm-exegesis/lib/PerfHelper.h
  llvm/tools/llvm-exegesis/lib/Target.cpp
  llvm/tools/llvm-exegesis/lib/Target.h
  llvm/tools/llvm-exegesis/lib/X86/Target.cpp

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