This test is failing on several platforms, IA64, x86_64, and PowerPC. On IA64 the failures started with r137631 which was the PRE rewrite. There was some discussion of test failures when this change went in but I didn't see any mention of this particular test.
See http://gcc.gnu.org/ml/gcc-patches/2008-07/msg01638.html -- Summary: gcc.dg/vect/vect-67.c failing since PRE rewrite Product: gcc Version: 4.4.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: sje at cup dot hp dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37853
