[PATCH] D94416: [PM] Avoid duplicates in the Used/Preserved/Required sets

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

I think improving the legacy pass manager is fine (after all it is taking a very long time for the new pass manager to supersede it). But I think any patch that claims to do less work overall, or speed something up, needs *some* kind of evidence that it actually has the desired effect.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D94416/new/

https://reviews.llvm.org/D94416