[llvm-branch-commits] [llvm][IR] Extend BranchWeightMetadata to track provenance of weights (PR #86609)

[Matthias Braun via llvm-branch-commits]

https://github.com/MatzeB commented:

I guess this is deliberately designed around a `bool IsExpected` rather than a more generic API. I guess I'm fine with it given the current patch, though I would bet it's just a question of time for someone to add more sources now... (so gotta make sure to turn the API into a generic one when there is more sources coming around)

Added a bunch of nitpicks, naming discussions etc. Though all-in-all this looks good to me.

https://github.com/llvm/llvm-project/pull/86609