[PATCH] D142344: [DAGCombiner] Add Transform for `(and/or (eq/ne A,Pow2),(eq/ne A,-Pow2))`->`(eq/ne (and (and A,Pow2),~(Pow2*2)), 0)`

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon accepted this revision.
RKSimon added a comment.
This revision is now accepted and ready to land.

LGTM



================
Comment at: llvm/include/llvm/CodeGen/TargetLowering.h:4013
+  //            -> (icmp eq and(add(A, C), ~(C + C)), 0)
+  //     (icmp ne A, C) & (icmp ne A, -C)w
+  //            -> (icmp ne and(add(A, C), ~(C + C)), 0)
----------------
remove trailing w?


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  https://reviews.llvm.org/D142344/new/

https://reviews.llvm.org/D142344