[llvm] [CodeGen] Tail call when successor is unreachable (PR #187321)

[Anirudh Mathur via llvm-commits]

================

----------------
AnirudhMathur12 wrote:

Also I haven't yet written a dedicated test file. Just wanted a thumbs up on the code. Not sure if my current solution is the best one. 

https://github.com/llvm/llvm-project/pull/187321