[flang-commits] [mlir] [flang] [mlir][flang][openmp] Rework parallel reduction operations (PR #79308)

[Tom Eccles via flang-commits]

tblah wrote:

Please could you rebase this on top of the current HEAD. There has been quite a bit of churn in OpenMP.cpp.

https://github.com/llvm/llvm-project/pull/79308