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! { dg-do compile }

! { dg-options "-O -fdump-tree-original -Warray-temporaries" }

subroutine xx(n, m, a, b, c, d, x, z, i, s_in, s_out)

  implicit none

  integer, intent(in) :: n, m

  real, intent(in), dimension(n,n) :: a, b, c

  real, intent(out), dimension(n,n) :: d

  real, intent(in), dimension(n,m) :: s_in

  real, intent(out), dimension(m) :: s_out

  integer, intent(out) :: i

  real, intent(inout) :: x

  real, intent(out) :: z

  character(60) :: line

  real, external :: ext_func

  integer :: one = 1

  interface

     elemental function element(x)

       real, intent(in) :: x

       real :: elem

     end function element

     pure function mypure(x)

       real, intent(in) :: x

       integer :: mypure

     end function mypure

     elemental impure function elem_impure(x)

       real, intent(in) :: x

       real :: elem_impure

     end function elem_impure

  end interface

  d = matmul(a,b) + matmul(a,b)    ! { dg-warning "Creating array temporary" }

  z = sin(x) + cos(x) + sin(x) + cos(x)

  x = ext_func(a) + 23 + ext_func(a)

  z = element(x) + element(x)

  i = mypure(x) - mypure(x)

  z = elem_impure(x) - elem_impure(x)

  s_out = sum(s_in,one) + 3.14 / sum(s_in,one) ! { dg-warning "Creating array temporary" }

end subroutine xx

! { dg-final { scan-tree-dump-times "matmul_r4" 1 "original" } }

! { dg-final { scan-tree-dump-times "__builtin_sinf" 1 "original" } }

! { dg-final { scan-tree-dump-times "__builtin_cosf" 1 "original" } }

! { dg-final { scan-tree-dump-times "ext_func" 2 "original" } }

! { dg-final { scan-tree-dump-times "element" 1 "original" } }

! { dg-final { scan-tree-dump-times "mypure" 1 "original" } }

! { dg-final { scan-tree-dump-times "elem_impure" 2 "original" } }

! { dg-final { scan-tree-dump-times "sum_r4" 1 "original" } }

! { dg-final { cleanup-tree-dump "original" } }