i...@linux-fd1f:/tmp> cat tst.f90
subroutine foo(a,c,d,n)
  real, dimension(n),intent(in) :: a
  real, dimension(n),intent(out) :: c,d
  c = sin(a)
  d = cos(a)
end subroutine foo
i...@linux-fd1f:/tmp> gfortran -O3 -S tst.f90
i...@linux-fd1f:/tmp> grep sin tst.s
        call    sinf
i...@linux-fd1f:/tmp> grep cos tst.s
        call    cosf

- The loops could be merged for better performance (no need to fetch
  a twice)
- This could exploit use of the sincos function, where available

           Summary: sincos opportunity missed
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tkoenig at gcc dot gnu dot org


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