Fortran] OpenACC – permit common blocks in some clauses

        * testsuite/libgomp.oacc-fortran/declare-5.f90: Extend by
        adding a common-block test case.

From-SVN: r278845

libgomp/ChangeLog

+2019-11-29  Tobias Burnus  <tobias@codesourcery.com>
+
+	* testsuite/libgomp.oacc-fortran/declare-5.f90: Extend by
+	adding a common-block test case.
+
 2019-11-29  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/60228

libgomp/testsuite/libgomp.oacc-fortran/declare-5.f90

@@ -3,27 +3,105 @@
 module vars
   implicit none
   real b
- !$acc declare device_resident (b)
+  !$acc declare device_resident (b)
+
+  integer :: x, y, z
+  common /block/ x, y, z
+  !$acc declare device_resident (/block/)
 end module vars
 
+subroutine set()
+  use openacc
+  implicit none
+  integer :: a(5), b(1), c, vals(7)
+  common /another/ a, b, c
+  !$acc declare device_resident (/another/)
+  if (.not. acc_is_present (a)) stop 10
+  if (.not. acc_is_present (b)) stop 11
+  if (.not. acc_is_present (c)) stop 12
+
+  vals = 99
+  ! NOTE: The current (Nov 2019) implementation requires the 'present'
+  ! as it tries to otherwises map the device_resident variables;
+  ! following OpenMP 4.0 semantic: 'a' + 'b' are 'copy' (map fromto) and
+  ! 'c' is firstprivate.
+  !$acc parallel copyout(vals) present(a, b, c)
+    a = [11,12,13,14,15]
+    b = 16
+    c = 47
+    vals(1:5) = a
+    vals(6:6) = b
+    vals(7) = c
+  !$acc end parallel
+
+  if (.not. acc_is_present (a)) stop 13
+  if (.not. acc_is_present (b)) stop 14
+  if (.not. acc_is_present (c)) stop 15
+
+  if (any (vals /= [11,12,13,14,15,16,47])) stop 16
+end subroutine set
+
+subroutine check()
+  use openacc
+  implicit none
+  integer :: g, h(3), i(3)
+  common /another/ g, h, i
+  integer :: val(7)
+  !$acc declare device_resident (/another/)
+  if (.not. acc_is_present (g)) stop 20
+  if (.not. acc_is_present (h)) stop 21
+  if (.not. acc_is_present (i)) stop 22
+
+  val = 99
+  !$acc parallel copyout(val) present(g, h, i)
+    val(5:7) = i
+    val(1) = g
+    val(2:4) = h
+  !$acc end parallel
+
+  if (.not. acc_is_present (g)) stop 23
+  if (.not. acc_is_present (h)) stop 24
+  if (.not. acc_is_present (i)) stop 25
+
+
+  !print *, val
+  if (any (val /= [11,12,13,14,15,16,47])) stop 26
+end subroutine check
+
+
 program test
   use vars
   use openacc
   implicit none
   real a
+  integer :: k
 
-  if (acc_is_present (b) .neqv. .true.) STOP 1
+  call set()
+  call check()
+
+  if (.not. acc_is_present (b)) stop 1
+  if (.not. acc_is_present (x)) stop 2
+  if (.not. acc_is_present (y)) stop 3
+  if (.not. acc_is_present (z)) stop 4
 
   a = 2.0
+  k = 42
 
-  !$acc parallel copy (a)
+  !$acc parallel copy (a, k)
     b = a
     a = 1.0
     a = a + b
+    x = k
+    y = 7*k - 2*x
+    z = 3*y
+    k = k - z + y
    !$acc end parallel
 
-  if (acc_is_present (b) .neqv. .true.) STOP 2
-
-  if (a .ne. 3.0) STOP 3
+  if (.not. acc_is_present (b)) stop 5
+  if (.not. acc_is_present (x)) stop 6
+  if (.not. acc_is_present (y)) stop 7
+  if (.not. acc_is_present (z)) stop 8
 
+  if (a /= 3.0) stop 3
+  if (k /= -378) stop 3
 end program test