[PATCH] D120648: [DAGCombine] fold (bswap(srl (bswap c), x)) -> (shl c, x)

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

Please can you precommit the additional tests and then rebase this patch so it shows the changes?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D120648/new/

https://reviews.llvm.org/D120648