https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79216
--- Comment #10 from H. Peter Anvin <hpa at zytor dot com> --- It is not. I guess I'd like to modify the request to allow __attribute__((scalar_storage_order())) to be specified for scalar *pointer*. That would bring the 90% up to 99% at the very least; the inability to specify it for individual scalar members is really more of a wart at that point.