[llvm] [NFC] [DSE] Refactor DSE (PR #100956)

[Haopeng Liu via llvm-commits]

haopliu wrote:

Thank you all! Here is the follow-up DSE commit for reference (https://github.com/llvm/llvm-project/commit/58dd8a440343055b1a4929d72317218e912c16fd). 
Will merge this refactoring PR this week if no other comments.

https://github.com/llvm/llvm-project/pull/100956