[llvm] [Mem2Reg] Generate non-terminator unreachable for !noundef undef (PR #96639)

[Antonio Frighetto via llvm-commits]

antoniofrighetto wrote:

> Can we also do this for SROA?

Do we have to, out of curiosity? Thought this was only being done here, exactly to relieve SROA from carrying that out.

https://github.com/llvm/llvm-project/pull/96639