[llvm] [AMDGPU] Introduce "amdgpu-sw-lower-lds" pass to lower LDS accesses. (PR #87265)

[Matt Arsenault via llvm-commits]

https://github.com/arsenm commented:

This is much more tied in with the sanitizer than I would like liked. I was hoping for a totally standalone software implementation, that would then be subject to ordinary sanitization. This is directly inserting address sanitizer calls in the same pass. Can you only include the malloc parts, and have the regular sanitizer pass then sanitize the mallocs? 

https://github.com/llvm/llvm-project/pull/87265