[llvm] [AMDGPU] Add object linking support for LDS and named barrier lowering in the middle end (PR #191645)

[Joseph Huber via llvm-commits]

https://github.com/jhuber6 commented:

Very excited to see this move forward. This should massively improve link times when used responsibly.

https://github.com/llvm/llvm-project/pull/191645