[flang-commits] [clang] [flang] [llvm] [mlir] [OpenMP][flang] Add initial support for by-ref reductions on the GPU (PR #165714)

[Michael Kruse via flang-commits]

https://github.com/Meinersbur approved this pull request.

With the explanation

> The main problem for reduction by reference is that, prior to this PR, we were shuffling (from remote lanes within the same warp or across different warps within the block) pointers/references to the private reduction values rather than the private reduction values themselves.

this PR makes sense to me. Would be good if it could be added to the summary.

LGTM

https://github.com/llvm/llvm-project/pull/165714