https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91886
--- Comment #32 from Bill Schmidt <wschmidt at gcc dot gnu.org> --- BTW, we are in close contact with the Clang folks for Power as well, so we're going to get together with them about constraints consistency and a way forward to ensure these problems don't recur. I don't want anyone to get the idea that we don't care about Clang; we care very much indeed about compatibility between the compilers. I've personally worked on both in the past to ensure the ABI compatibility that you enjoy today. We had an unexpected gotcha here, and we'll get it resolved. I do agree with Segher that this was a long-overdue cleanup that was causing us a lot of misery, and the use of "ws" in the field was rather surprising to us. Long term we really want to get to "wa" and remove "ws", but aliases in the meantime will be needed until supported versions of Clang and GCC have the compatibility issue resolved.
