[PATCH] D104060: Machine IR Profile

[Ellis Hoag via Phabricator via llvm-commits]

ellis added a comment.

I probably sound like a broken record, but we've spent a lot of time making sure the map section can be extracted correctly and that the raw section has no excess info. This is a major feature of MIP, the profile data and the function info are separated so that only the necessary data remains in the binary. The question is whether we should extend an existing pgi to support this feature or if MIP deserves to be its own framework. I do see the value in extending one of the many existing pgi to reduce duplicate work. My thoughts are that it would be too invasive to do everything we need; add one or two new sections, create a new `.profraw` and `.profmap` format, add a few flags, and extend the tools. By keeping MIP separate, we can make design decisions that align with our code size goal that may not be so easy to do in existing frameworks.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D104060/new/

https://reviews.llvm.org/D104060