[PATCH] D95355: [CostModel] Handle CTLZ and CCTZ in getTypeBasedIntrinsicInstrCost

Dave Green via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Jan 25 08:20:03 PST 2021

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dmgreen added a comment.

It's not scalarized. Like I said it's custom lowered to a bitreverse (plus a mov) and a ctlz so 3 instructions in general.


Repository:
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  https://reviews.llvm.org/D95355/new/

https://reviews.llvm.org/D95355

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