[Bug middle-end/40979] induct benchmark 60% slower when compiled with -fgraphite-identity

[spop at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40979

Sebastian Pop <spop at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                 CC|                            |spop at gcc dot gnu.org
         AssignedTo|unassigned at gcc dot       |spop at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #8 from Sebastian Pop <spop at gcc dot gnu.org> 2010-09-30 23:02:28 
UTC ---
# FLAGS="-ffast-math -funroll-loops -msse3 -O3 -ftree-vectorizer-verbose=7"
# f951 $FLAGS induct.f90  &> foo
# f951 $FLAGS induct.f90 -fgraphite-identity &> foo.graphite
# grep "LOOP VECTORIZED" foo | wc
     8      32     320
# grep "LOOP VECTORIZED" foo.graphite | wc
     4      16     160

So we still have 4 non vectorized loops with -fgraphite-identity.