https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57117
--- Comment #9 from Paul Thomas <pault at gcc dot gnu.org> --- Created attachment 36618 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36618&action=edit A completely different approach to the fix. This one does far better and is less invasive. It is not yet regtested but I am certain that any problems will be trivial. I will try with other transformational intrinsics than transpose and rehape, whilst on tonight's flight to London. Cheers Paul