[PATCH] D101582: [InstCombine] cttz(z/sext(x)) -> zext(cttz(x)) if the 'ZeroIsUndef' parameter is 'true' (PR50172)

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

@xbolva00 Please don't forget to generate the diffs with context


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