https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71874
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 38929 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38929&action=edit gcc49-pr71874-2.patch Another patch, using get_addr_base_and_unit_offset. This one optimizes __builtin_memmove (str + 20, str + 15, 4); into memcpy while the other patch doesn't.
