http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60452
--- Comment #8 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > But what would be safe positive/negative offsets from frame_pointer? > I mean, e.g. size of arguments is not included in the frame size, so size of > arguments would need to be taken into account too, plus does the middle-end > really know all the biases etc.? No, that would be either conservative or not bullet-proof, at least if used alone. Maybe compare MEM_OFFSET and get_frame_size and return true if the former is larger than the latter. Why do we drop the MEM_EXPR if the DECL_RTL is a reg?
