--- /dev/null
+! PR fortran/98858
+!
+! Assumed-size array with use_device_ptr()
+!
+program test_use_device_ptr
+ use iso_c_binding, only: c_ptr, c_loc, c_f_pointer
+ implicit none
+ double precision :: alpha
+ integer, parameter :: lda = 10
+ integer, allocatable :: mat(:, :)
+ integer :: i, j
+
+ allocate(mat(lda, lda))
+ do i = 1, lda
+ do j = 1, lda
+ mat(j,i) = i*100 + j
+ end do
+ end do
+
+ !$omp target enter data map(to:mat)
+ call dgemm(lda, mat)
+ !$omp target exit data map(from:mat)
+
+ do i = 1, lda
+ do j = 1, lda
+ if (mat(j,i) /= -(i*100 + j)) stop 1
+ end do
+ end do
+
+ !$omp target enter data map(to:mat)
+ call dgemm2(lda, mat)
+ !$omp target exit data map(from:mat)
+
+ do i = 1, lda
+ do j = 1, lda
+ if (mat(j,i) /= (i*100 + j)) stop 1
+ end do
+ end do
+
+ contains
+
+ subroutine dgemm(lda, a)
+ implicit none
+ integer :: lda
+ integer, target:: a(lda,*) ! need target attribute to use c_loc
+ !$omp target data use_device_ptr(a)
+ call negate_it(c_loc(a), lda)
+ !$omp end target data
+ end subroutine
+
+ subroutine dgemm2(lda, a)
+ implicit none
+ integer :: lda
+ integer, target:: a(lda,*) ! need target attribute to use c_loc
+ !$omp target data use_device_addr(a)
+ call negate_it(c_loc(a), lda)
+ !$omp end target data
+ end subroutine
+
+ subroutine negate_it(a, n)
+ type(c_ptr), value :: a
+ integer, value :: n
+ integer, pointer :: array(:,:)
+
+ ! detour due to OpenMP 5.0 oddness
+ call c_f_pointer(a, array, [n,n])
+ call do_offload(array, n)
+ end
+
+ subroutine do_offload(aptr, n)
+ integer, target :: aptr(:,:)
+ integer, value :: n
+ !$omp target is_device_ptr(aptr)
+ call negate_it_tgt(aptr, n)
+ !$omp end target
+ end subroutine do_offload
+
+ subroutine negate_it_tgt(array, n)
+ !$omp declare target
+ integer, value :: n
+ integer :: array(n,n)
+ integer :: i, j
+ !$omp parallel do collapse(2)
+ do i = 1, n
+ do j = 1, n
+ array(j,i) = - array(j,i)
+ end do
+ end do
+ !$omp end parallel do
+ end subroutine
+end program