[PATCH] D99723: [ARM] Transforming memcpy to Tail predicated Loop

[Dave Green via Phabricator via llvm-commits]

dmgreen added a comment.

Thanks. It looks like the arm low overhead loop pass doesn't like that two loops have the same preheader. Which makes sense, I don't like that either.

What do you think about committing this with the flag off for the time being and flipping the switch when we have sorted out some of the problems this is running into? memset especially seems to come up in a lot of cases, and can run into problem with so many low overhead loops together.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D99723/new/

https://reviews.llvm.org/D99723