[PATCH] D77422: [llvm-exegesis] Add benchmark mode that uses LBR for more precise measurements.

[Clement Courbet via Phabricator via llvm-commits]

courbet added a comment.

OK, I think this is in good shape now, but we still need a test for it. The only issue is that not all buildbots support LBR, so we need a mechanism for skipping the test when not available. You can create a subdir `llvm-project/llvm/test/tools/llvm-exegesis/X86/lbr` with a custom lit similar to `llvm-project/llvm/test/tools/llvm-exegesis/X86/lit.local.cfg` to check lbr support before running the test.


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  https://reviews.llvm.org/D77422/new/

https://reviews.llvm.org/D77422