https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66797
--- Comment #1 from amker at gcc dot gnu.org --- Seems HPPA only supports small int in addressing mode "REG+OFFSET" of floating mode load/store. In effect, we can only group every two address iv uses, resulting in 20 iv uses. Even with this restriction, code generated with iv_use groups is better than before. I am going to refine the test by further relaxing nuse.