[PATCH] D104060: Machine IR Profile

Ellis Hoag via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Jun 11 16:40:02 PDT 2021


ellis added a comment.

In D104060#2814525 <https://reviews.llvm.org/D104060#2814525>, @davidxl wrote:

> Do you have runtime number with -fcs-profile-generate -mllvm
> -disable-vp=true
>
> This will provide more data (BB count) than what MIP can do.
>
> Besides, more options can be added to control the type of profile data
> collected in IRPGO to further reduce overhead.
>
> David

I've added those numbers here https://gist.github.com/ellishg/92a68cf82bfdeccd10225154425edc69#gistcomment-3777527

The flags `-fcs-profile-generate -mllvm -disable-vp=true` appears to increase binary size by 4-9x and execution time is increased in many cases.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D104060/new/

https://reviews.llvm.org/D104060



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