https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64207
Bug ID: 64207 Summary: vectorization report Product: gcc Version: 4.9.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: mike at mikepage dot us gfortran --version GNU Fortran (MacPorts gcc49 4.9.2_1) 4.9.2 gfortran -O3 -ftree-vectorize -ftree-vectorizer-verbose=6 foo.f90 is not issuing vectorization report cat foo.f90 program main real, dimension(1024, 1024) :: a,b,c call random_number(a) call random_number(b) do i=1,1024 do j=1,1024 c(i,j) = a(j,i)*b(j,i) end do end do print *,c end program main