[clang] [llvm] [mlir] [OpenMP] Migrate GPU Reductions CodeGen from Clang to OMPIRBuilder (PR #80343)

[Akash Banerjee via cfe-commits]

TIFitis wrote:

> I don't remember exactly the test (added them more than 5 years ago), but both UDR and non-trivial constructors should be supported. I just remember that there were some limitations for UDR for NVPTX, like trivial UDR operations to use NVPTX fast builtins.

As long we have tests for these in check-clang or check-openmp then we should be good I guess as both are clean.



https://github.com/llvm/llvm-project/pull/80343