Retro68/gcc/libgomp/testsuite/libgomp.fortran/omp_atomic2.f90

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! { dg-do run }
real, dimension (20) :: r
integer, dimension (20) :: d
integer :: i, j, k, n
integer (kind = 2) :: a, b, c
do 10 i = 1, 20
r(i) = i
10 d(i) = 21 - i
n = 20
call foo (r, d, n)
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if (n .ne. 22) STOP 1
if (any (r .ne. 33)) STOP 2
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i = 1
j = 18
k = 23
!$omp atomic
i = min (i, j, k, n)
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if (i .ne. 1) STOP 3
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!$omp atomic
i = max (j, n, k, i)
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if (i .ne. 23) STOP 4
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a = 1
b = 18
c = 23
!$omp atomic
a = min (a, b, c)
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if (a .ne. 1) STOP 5
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!$omp atomic
a = max (a, b, c)
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if (a .ne. 23) STOP 6
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contains
function bar (i)
real bar
integer i
bar = 12.0 + i
end function bar
subroutine foo (x, y, n)
integer i, y (*), n
real x (*)
do i = 1, n
!$omp atomic
x(y(i)) = x(y(i)) + bar (i)
end do
!$omp atomic
n = n + 2
end subroutine foo
end