http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46723
--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> 2010-11-30 18:11:41 UTC --- Created attachment 22583 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22583 A reduced testcase [...@gnu-35 delta]$ /usr/gcc-4.5/bin/gcc -S -O3 testcase-min.cc testcase-min.cc: In function ‘void testVectors() [with V = Vc::Simple::Vector<short int>]’: testcase-min.cc:157:27: internal compiler error: in get_initial_def_for_induction, at tree-vect-loop.c:2431 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. [...@gnu-35 delta]$