[llvm] [AMDGPU] Emit the relocation symbol for LDS and named barrier when object linking is enabled (PR #192380)

[Juan Manuel Martinez Caamaño via llvm-commits]

https://github.com/jmmartinez approved this pull request.

Minor remark, otherwise it looks good to me. But wait for the approval of somebody else on this part since I'm not 100% confident.

https://github.com/llvm/llvm-project/pull/192380