------- Comment #6 from rguenth at gcc dot gnu dot org 2007-10-11 12:10 ------- Also
because in fold_binary where we handle this kind of stuff we have if (!offset0 || !offset1 || TREE_TYPE (offset0) == TREE_TYPE (offset1)) { ... is no longer true, we compare offsets in signed sizetype. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26198