[llvm] [DAGCombine] Add all users of the instruction recursively into worklist when an instruction is simplified (PR #91772)

[Shengchen Kan via llvm-commits]

KanRobert wrote:

This affects lots of test cases. I only updated one to prove that it may bring gain. However, the change will increase compile time.

https://github.com/llvm/llvm-project/pull/91772