http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44384
--- Comment #4 from Mark Eklund <meklund at cisco dot com> 2011-04-21 15:17:37
UTC ---
Although "subobject" isn't well defined in the documentation,
the below comments from tree-object-size.c revision r171388
lines 63-68 would indicate that subobject is the innermost array.
/*
*
* object_sizes[0] is upper bound for number of bytes till the end of
* the object.
* object_sizes[1] is upper bound for number of bytes till the end of
* the subobject (innermost array or field with address taken).
* object_sizes[2] is lower bound for number of bytes till the end of
* the object and object_sizes[3] lower bound for subobject.
*/
