[llvm] [AMDGPU] Fix LDS allocation granularity in occupancy computation for RDNA 2 (PR #219495)

[Frederik Harwath via llvm-commits]

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frederik-h wrote:

I do not know, but I assume unless the change you mean already exists on main, we need to fix this issue in this part of the code?

https://github.com/llvm/llvm-project/pull/219495