[llvm-branch-commits] [llvm] [AMDGPU] Support one immediate folding for global load (PR #178608)

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ruiling wrote:

I just updated the comment slightly. We may need more work in this area to support more cases. But I cannot figure out the best way to solve all of them for now. Do you guys think this is good to go? Thanks!

https://github.com/llvm/llvm-project/pull/178608