[PATCH] D86193: [CSSPGO] Pseudo probe instrumentation for basic blocks.

Wei Mi via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Sun Aug 23 11:35:50 PDT 2020


wmi added a comment.

Thanks for the patch! A few questions:

> probe blocks some CFG transformations that can mess up profile correlation.

Can you enumerate some CFG transformations which be blocked? Is it possible that some CFG transformations being blocked are actually beneficial for later optimizations?

Are the intrinsic probes counted when computing bb size and function size?

And could you split the patches into small parts for easier review. For example,  Add the intrinsic support in IR and MIR. SampleProfileProbe pass. -fpseudo-probe-for-profiling support. changes in various passes.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D86193/new/

https://reviews.llvm.org/D86193



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