[PATCH] D87000: Add a new hidden option -print-changes that reports in a patch-like notation when a pass actually changes the IR.

[Arthur Eubanks via Phabricator via llvm-commits]

aeubanks added a comment.

This is a really big change and it looks like there are multiple things happening: some refactoring and the actual diff printer, could you split this up so it's more manageable to review?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D87000/new/

https://reviews.llvm.org/D87000