http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47890
--- Comment #1 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2011-02-25 01:42:56 UTC --- Created attachment 23463 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23463 Backtrace from GCC 4.5 4.5.3 also fails with `internal compiler error: in get_initial_def_for_induction, at tree-vect-loop.c:2431' message. It looks like bug 46723.