Comment by colejohnson66

At the moment, they are still listed as a WIP[0], but the commit history shows a lot of effort done recently[1] (Ctrl-F "coroutine")

[0]: https://clang.llvm.org/cxx_status.html#ts [1]: http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-2017...