https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69328
--- Comment #4 from Ilya Enkovich <ienkovich at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #3)
> > ./cc1 -quiet t.c -O3
> t.c: In function ‘fn1’:
> t.c:2:6: internal compiler error: in vector_compare_rtx, at optabs.c:5290
> void fn1() {
> ^~~
>
> 0xca84f2 vector_compare_rtx
> /space/rguenther/src/svn/trunk3/gcc/optabs.c:5290
> 0xca979f expand_vec_cond_expr(tree_node*, tree_node*, tree_node*,
> tree_node*, rtx_def*)
> /space/rguenther/src/svn/trunk3/gcc/optabs.c:5612
>
> sth else is wrong here.
Looks like vectype1 and vectype2 in vect_is_simple_cond have different number
of elements and we don't catch it.
