[clang] [RFC] Add clang atomic control options and pragmas (PR #102569)

[Yaxun Liu via cfe-commits]

yxsamliu wrote:

> Thank you for the patch, but RFCs for Clang should be published in https://discourse.llvm.org/c/clang/6. PRs doesn't have the visibility we want RFCs to have.

Discourse topic created: https://discourse.llvm.org/t/rfc-add-clang-atomic-control-options-and-pragmas/80641. Thanks.

https://github.com/llvm/llvm-project/pull/102569