http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52028
--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-30
13:57:30 UTC ---
loop distribution splits the
for (;;)
{
...
if (K != k)
break;
K += 16;
}
loop into three portions, the first writing to K[0..13], the next
writing to K[14] and the last writing to K[15]. All of which is
reasonable at a first glance. But then the first loop is discarded
completely CDDCE2, so something is wrong.
