[PATCH] D58874: [DAGCombiner] fold (add (add (xor a, -1), b), 1) -> (sub b, a)

[Amaury SECHET via Phabricator via llvm-commits]

deadalnix added a comment.

All the pattern I submit in DAGCombiner are extracted from actual code -in this case libraries doing cryptography). I never encountered the vector version of this but I'm happy to add test cases for them if this is of interest.


Repository:
  rL LLVM

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  https://reviews.llvm.org/D58874/new/

https://reviews.llvm.org/D58874