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

[Nabeel Omer via llvm-commits]

omern1 wrote:

Hi @bjope / @felipepiovezan / @fhahn, are there any other changes that you'd like me to make to this patch?

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