[PATCH] D104060: Machine IR Profile

[Ellis Hoag via Phabricator via llvm-commits]

ellis added a comment.

In D104060#3063215 <https://reviews.llvm.org/D104060#3063215>, @wenlei wrote:

> I think it makes total sense to leverage existing PGO and achieve what's needed through extension rather setting up a new, disconnected framework. I've been working with @ellis and @kyulee offline to see how we can satisfies the key requirements within IRPGO framework.
>
> It really comes down to two things: 1) extractable metadata; 2) coarse-grained instrumentation, and these don't warrant reinvent the wheel for every piece in the PGO pipeline. We've come up with a design that we think can achieve both within today's PGO framework, and we will send up a high level RFC soon. Thanks for the feedbacks and discussions.

By the way, here is the RFC we put together.
https://groups.google.com/g/llvm-dev/c/r03Z6JoN7d4


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