> So for an example, Ada layouts the records themselves and some times > has a different order of the fields than the layouted offsets.
The Ada compiler uses stor-layout.c by default, like all the other compilers. It does its own layout only when it has nothing to do, i.e. when the user has specified the layout with a representation clause; and, in this case, it does sort the fields by increasing offsets (see components_to_record) because the middle-end expects the canonical order in various circumstances. -- Eric Botcazou
