[PATCH] D83024: [PGO] Instrument function entry BB by default in IR PGO

[David Li via Phabricator via llvm-commits]

davidxl added a comment.

If we require profile-use also to use the option, it will work, but I think it is better and more convenient to change variant bit (I believe there are plenty). Bumping version can potentially complicate things in the future.

We should probably also add a new directive in text format for the variant, something like

:entry_first

When the directive is lacking, it means the old variant.


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  https://reviews.llvm.org/D83024/new/

https://reviews.llvm.org/D83024