[llvm] [DAG] SelectionDAG::canCreateUndefOrPoison - Mark AVGFLOORS and AVGCE… (PR #148191)

[Jay Foad via llvm-commits]

jayfoad wrote:

Code change looks fine but I don't understand what the test you added actually shows.

> Differential Revision:

Don't add this! We haven't used this since we moved away from Phabricator for code reviews.

https://github.com/llvm/llvm-project/pull/148191