[Bug fortran/40766] New: this fortran program is too slow

[linuxl4 at sohu dot com]

program main
  implicit none
  integer :: i,j
  integer,parameter :: N=50000000
  real :: x(N)=0.0
  do j=1,20
  do i=1,N
    x(i)=x(i)+sin(real(i))+cos(real(i))-tan(real(i))
  enddo
  enddo
  print *, sum(x)
end program main


-- 
           Summary: this fortran program is too slow
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: linuxl4 at sohu dot com
 GCC build triplet: x86_64-linux-gnu
  GCC host triplet: x86_64-linux-gnu
GCC target triplet: x86_64-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40766