[llvm] [DSE] Split memory intrinsics if they are dead in the middle (PR #75478)

[Nabeel Omer via llvm-commits]

omern1 wrote:

Thanks for the reviews and the explanation. Given the current situation I'm going to close this PR as I do not have the bandwith to work on this further at the moment. Hopefully someone else will be able to pick it up in the future.

https://github.com/llvm/llvm-project/pull/75478