[llvm] [CodeGen] Perform early program return instead of using indirect branch (PR #102127)

[Matt Arsenault via llvm-commits]

arsenm wrote:

> @arsenm, how should I proceed now?

I would expect this does not require a new pass. I would assume that MachineBlockPlacement or BranchFolding would deal with this. This is why having IR testing to show the full pass pipeline effect is essential 

https://github.com/llvm/llvm-project/pull/102127