http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56812
--- Comment #8 from Andreas Schwab <sch...@linux-m68k.org> 2013-04-04 09:35:51 UTC --- The test is failing on ia64: $ grep basic slp-pr56812.cc.115t.slp /usr/local/gcc/gcc-20130404/gcc/testsuite/g++.dg/vect/slp-pr56812.cc:16: note: not vectorized: unsupported alignment in basic block.