http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54427
--- Comment #5 from Pat Haugen <pthaugen at gcc dot gnu.org> 2012-09-20 19:13:25 UTC --- Forgot to include the error message, which is causing the failures: /home/pthaugen/src/gcc/trunk/gcc/gcc/testsuite/c-c++-common/torture/vector-compare-2.c:9:1: warning: GCC vector passed by reference: non-standard ABI extension with no compatibility guarantee [enabled by default]