[libc-commits] [clang] [compiler-rt] [flang] [libc] [libcxx] [libcxxabi] [libunwind] [llvm] [openmp] [Flang] Move builtin .mod generation into runtimes (Reapply #137828) (PR #171515)

[Petr Hosek via libc-commits]

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

This PR touches a lot of different parts of LLVM which makes it difficult to review in its entirety. I think it'd be better to further break up this PR into smaller ones that could be landed separately to avoid having the revert & reland the entire change; for example, I believe the Clang driver changes could land separately. However, this is ultimately a call for maintainers of Clang, Flang and OpenMP, the build system changes look good to me.

https://github.com/llvm/llvm-project/pull/171515