[PATCH] D82292: [SelectionDAG] Lower @llvm.get.active.lane.mask to setcc

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer added a comment.

Ah, okay, sorry. Yes, writing out the overflow check isn't hard. As I was concerned about the codegen, I was stuck with the idea to prove absence of overflow, thus it didn't occur to me to codegen the checks. But yes, I guess that's what is needed.


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  https://reviews.llvm.org/D82292/new/

https://reviews.llvm.org/D82292