[PATCH] D88670: Reland rG4fcd1a8e6528:[llvm-exegesis] Add option to check the hardware support for a given feature before benchmarking.

[Vy Nguyen via Phabricator via llvm-commits]

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This is mostly for the benefit of the LBR latency mode.
Right now, it performs no checking. If this is run on non-supported hardware, it will produce all zeroes for latency.

  Differential Revision: https://reviews.llvm.org/D85254

New change: Updated lit.local.cfg to use pass the right argument to llvm-exegesis to actually request the LBR mode.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D88670

Files:
  llvm/test/tools/llvm-exegesis/X86/lbr/lit.local.cfg
  llvm/tools/llvm-exegesis/lib/Target.h
  llvm/tools/llvm-exegesis/lib/X86/Target.cpp
  llvm/tools/llvm-exegesis/lib/X86/X86Counter.cpp
  llvm/tools/llvm-exegesis/lib/X86/X86Counter.h
  llvm/tools/llvm-exegesis/llvm-exegesis.cpp

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