[PATCH] D154205: [MachineLICM] Handle subloops

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

> we could skip to visit basic blocks which are already visited with inner loop because the loop invariant code of the inner loop has already been hoisted to inner loop's preheader.

Please do implement this (and revert this patch in the meantime if non-trivial). LICM should visit each block only once, not once per parent loop.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D154205/new/

https://reviews.llvm.org/D154205