[llvm] [SelectionDAG] Widen even 33-bit-magic udiv on free-zext targets (PR #207634)

[Craig Topper via llvm-commits]

topperc wrote:

> Thanks. I rebased onto the latest `main` and force-pushed. The formatting check passes now.

Do you need someone to merge this?

https://github.com/llvm/llvm-project/pull/207634