[llvm] [DAG] Fold vecreduce.or(sext(x)) to sext(vecreduce.or(x)) (PR #108959)

[David Green via llvm-commits]

davemgreen wrote:

I was wondering about that. The case I saw this in was generating the sext later during legalization/optimization of the DAG.

https://github.com/llvm/llvm-project/pull/108959