[flang-commits] [clang] [flang] [flang][OpenMP] Upstream first part of `do concurrent` mapping (PR #126026)

[Kareem Ergawy via flang-commits]

ergawy wrote:

@mjklemm suggested to add a warning that the pass is still experimental, which I think is a good idea. However, I am wondering what the best place for that warning would be? I prefer not to do that in `CodeGenAction::beginSourceFileAction()` (where we inspect the flag and actually use it) since that would emit one warning per source file and get annoying quickly. Any suggestions?

https://github.com/llvm/llvm-project/pull/126026