[llvm] [SLP]Model reduction_add(ext(<n x i1>)) as ext(ctpop(bitcast <n x i1> to int n)) (PR #116875)

[Alexey Bataev via llvm-commits]

alexey-bataev wrote:

> Why not use the existing getExtendedReductionCost and push the logic about the ctpop inside that?

Good point, missed that we have this entry point, will fix it

https://github.com/llvm/llvm-project/pull/116875