[llvm] [BasicBlockUtils] Remove redundant llvm.dbg instructions after blocks to reduce compile time (PR #89069)

[Florian Hahn via llvm-commits]

https://github.com/fhahn commented:

Could you please also update the description of the PR and include `Fixes https://github.com/llvm/llvm-project/issues/89073`?

https://github.com/llvm/llvm-project/pull/89069