https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56688
--- Comment #8 from Yuri Rumyantsev <ysrumyan at gmail dot com> --- I checked that if we comment down 'save' stmt in thin6d.f all loops will be vectorized: grep -c 'LOOP VECTORIZED' thin6d.f.149t.vect 32