[PATCH] D120800: [MachineSink] Disable if there are any irreducible cycles

[Dave Green via Phabricator via llvm-commits]

dmgreen added a comment.

Hello. This seems to be increasing codesize by quite a large amount in places at -Oz. Up to 9% in one case! (They tend to be machine-outliner related when they get that large). It seems to be increasing codesize in general, I would guess because having irreducible loops somewhere throughout a large function can be quite common.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D120800/new/

https://reviews.llvm.org/D120800