[llvm] AMDGPU/NewPM: Fill out passes in addCodeGenPrepare (PR #102867)

[Nikita Popov via llvm-commits]

nikic wrote:

I've been seeing a lot of these graphite fails recently. Is this an unavoidable outcome of using it, or is this due to some incorrect usage of the tool. If the latter, can correct usage be documented? If the former, we should remove graphite from the LLVM org.

https://github.com/llvm/llvm-project/pull/102867