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! Valid usage of 'external' procedures with OpenACC 'routine' directives.
! { dg-additional-options "-fdump-tree-optimized-raw" }
subroutine test (x)
implicit none
integer, intent(inout) :: x
!$acc routine (test)
integer, external :: f_1
!$acc routine (f_1)
integer f_2 ! No explicit EXTERNAL attribute.
!$acc routine (f_2)
external s_1
!$acc routine (s_1)
! 's_2' will be an external subroutine without explicit EXTERNAL
! attribute, but we don't have a handle for it yet...
!!$acc routine (s_2) ..., so can't specify this, here.
if (x < 1) then
x = 1
else
x = x * x - 1 + f_1(f_2(x))
call s_1(x)
call s_2(x)
end if
end subroutine test
! { dg-final { scan-tree-dump-times "gimple_call" 4 "optimized" } }
! { dg-final { scan-tree-dump-times "gimple_call <f_1," 1 "optimized" } }
! { dg-final { scan-tree-dump-times "gimple_call <f_2," 1 "optimized" } }
! { dg-final { scan-tree-dump-times "gimple_call <s_1," 1 "optimized" } }
! { dg-final { scan-tree-dump-times "gimple_call <s_2," 1 "optimized" } }
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