http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45870
--- Comment #2 from Gary Funck <gary at intrepid dot com> 2010-10-03 04:04:48 UTC --- reghunt on the 4.5 branch indicates that the following update produces the notes described above (-O1 -g, checks enabled): r161414 | aoliva | 2010-06-25 21:11:56 +0000 (Fri, 25 Jun 2010) | 3 lines PR debug/44610 * simplify-rtx.c (delegitimize_mem_from_attrs): Don't use a base address if the offset is unknown.