https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78839
--- Comment #6 from Tom O'Connor <toconnor at forcepoint dot com> --- (In reply to Andrew Pinski from comment #5) > (In reply to Tom O'Connor from comment #4) > > Bitfields seemed to work fine in all GCC prior to 6, FWIW. The same > > attached source code when built with other GCCs prior to 6 generates > > DW_AT_data_member_location = 0 for all the fields as expected. Only 6 gets > > some of the fields "wrong". > > Maybe I am thinking big-endian :). Ah, I've only observed this on little-endian, as that's the only place I've looked.