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! { dg-do compile }

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

program main

  implicit none

  real, dimension(2,2) :: a, b, c, d

  integer :: i

  real :: x, z

  character(60) :: line

  real, external :: ext_func

  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

  data a /2., 3., 5., 7./

  data b /11., 13., 17., 23./

  write (unit=line, fmt='(4F7.2)') matmul(a,b)  &

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

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

  print *,z

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

  print *,d,x

  z = element(x) + element(x)

  print *,z

  i = mypure(x) - mypure(x)

  print *,i

  z = elem_impure(x) - elem_impure(x)

  print *,z

end program main

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