[PATCH] D106139: [DAGCombine] Combine srX of add that intends to get the carry as uaddo

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

Two comments:

1. the transform you want is https://alive2.llvm.org/ce/z/NFDE9C i.e. you need to start from `lshr i64 %z, 32`, match it's operands, and do *not* look at it's uses.
2. This is really something that should go into instcombine


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D106139/new/

https://reviews.llvm.org/D106139