[clang] [clang][AMDGPU] Emit deferred string globals before expanding printf (PR #231967)

[Sameer Sahasrabuddhe via cfe-commits]

https://github.com/ssahasra commented:

The change looks reasonable to me, but I simply don't know enough about Clang CodeGen to confidently say whether the implementation is the right one.

https://github.com/llvm/llvm-project/pull/231967