On Linux/ia64, revision 147829: http://gcc.gnu.org/ml/gcc-cvs/2009-05/msg00806.html
caused: FAIL: Matrix4f -O3 compilation from source FAIL: gcc.dg/vect/bb-slp-10.c scan-tree-dump-times slp "unsupported alignment in basic block." 1 FAIL: gcc.dg/vect/bb-slp-4.c scan-tree-dump-times slp "basic block vectorized using SLP" 0 -- Summary: [4.5 Regression] Revision147829 caused extra failures Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: hjl dot tools at gmail dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40244