[llvm] [DAG] Reducing instructions by better legalization handling of AVGFLOORU for illegal data types (PR #101223)

[Julius Alexandre via llvm-commits]

medievalghoul wrote:

@topperc Just in case you do see the LLVM Bot emails, they're all false. It has nothing to do with this merge, I'm not sure why it does that. But the error is related to `Posix/fork_threaded.c`.

https://github.com/llvm/llvm-project/pull/101223