https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81924
--- Comment #6 from Bill Schmidt <wschmidt at gcc dot gnu.org> --- The patch applies cleanly to gcc-6-branch, and I can certainly commit that (although I can't show a case where it can happen with present behavior, it should be cleaned up). For gcc-5-branch, the patch doesn't apply cleanly, and there would be a lot of work to establish prerequisites for it to do so. I was hoping to be able to offer Matthias a small patch despite GCC 5 being closed, but that doesn't look feasible. The problem is that the patch relies on TImode being hostable in VSX registers, which was not introduced until GCC 6; prior to that it only resides in a pair of GPRs. But that means that the problem in GCC 5 is probably different from the V1TI splitting that Jakub referenced; that code just isn't there. I'll see if I can understand this better.
