[compiler-rt] [flang][openacc] Enable lowering support for OpenACC atomic operations (PR #65776)

[via llvm-commits]

https://github.com/NimishMishra commented:

Apologies for the late review. I mainly worked on the OpenMP side of atomic construct.

Thank you for the sharing of code between OpenACC and OpenMP. Overall, the sharing between OpenMP and OpenACC looks good to me. Minor comments have already been pointed out by others and fixed.

Thanks!

https://github.com/llvm/llvm-project/pull/65776