[llvm] [DAG] fold avgu(zext(x), zext(y)) -> zext(avgu(x, y)) (PR #95134)

[Jay Foad via llvm-commits]

jayfoad wrote:

> > Any plans to do avgs(sext(x), sext(y)) -> sext(avgs(x, y)) ?
> 
> IIRC the constraints on that pattern aren't as easy as the unsigned cases.

Really? My instinct is that it should Just Work, but I have not thought about it deeply.

https://github.com/llvm/llvm-project/pull/95134