[PATCH] D122891: [X86] Fold AND(SRL(X,Y),1) -> SETCC(BT(X,Y))

Roman Lebedev via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Sat Apr 2 11:07:09 PDT 2022


lebedev.ri added a comment.

What about the case where we want to have the inverse of the bit, https://godbolt.org/z/sEjq9n9Kn
I would presume we can consume any such `not` by inverting the predicate (`b`<->`nb`).


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