[llvm] [AMDGPU] Use table strategy for LowerModuleLDSPass at O0 (PR #160181)

[Jon Chesterfield via llvm-commits]

https://github.com/JonChesterfield requested changes to this pull request.

The change is noisy enough that I'm not sure what it's trying to do. The goal stated in the commit message can't be met by the change.

What's the test case that this change decreases the amount of allocated lds for?

https://github.com/llvm/llvm-project/pull/160181