[llvm] [AMDGPU] add SROA before InferAddressSpace (PR #137909)

[Gang Chen via llvm-commits]

cmc-rep wrote:

> I'm also pretty sure this was a solved problem already

I can see mulitple LIT test changed after adding SROA, for example simple_indirect_call.ll, I checked, load and store get eliminated. This was originally from Nicolai. He observed this issue with some HIP code he wrote.

https://github.com/llvm/llvm-project/pull/137909