[llvm] [memcpyopt] handle memcpy from memset in more cases (PR #140954)

[Jameson Nash via llvm-commits]

vtjnash wrote:

> before merging

I don't have merge rights anymore (I wasn't active enough when they were reviewing access, though I can ask for it to be reinstated if you'd prefer that I merge)

https://github.com/llvm/llvm-project/pull/140954