------- Comment #2 from spop at gcc dot gnu dot org 2010-03-18 18:59 ------- In the output of ./cc1 -O3 -floop-interchange -fdump-tree-graphite-all -ftree-vectorizer-verbose=7 we have: "Loops at depths 0 and 1 will be interchanged." so we do the interchange, but then the vectorizer complains about: "note: not vectorized: data ref analysis failed D.2729_41 = a[i_40][var.8_47];"
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43427
