Subversion Repositories openrisc

! { dg-do run }

        SUBROUTINE F1(Q)

        COMMON /DATA/ P, X

        INTEGER, TARGET :: X

        INTEGER, POINTER :: P

        INTEGER Q

        Q=1

!$OMP FLUSH

        ! X, P and Q are flushed

        ! because they are shared and accessible

      END SUBROUTINE F1

      SUBROUTINE F2(Q)

        COMMON /DATA/ P, X

        INTEGER, TARGET :: X

        INTEGER, POINTER :: P

        INTEGER Q

!$OMP BARRIER

          Q=2

!$OMP BARRIER

          ! a barrier implies a flush

          ! X, P and Q are flushed

          ! because they are shared and accessible

        END SUBROUTINE F2

      INTEGER FUNCTION G(N)

          COMMON /DATA/ P, X

          INTEGER, TARGET :: X

          INTEGER, POINTER :: P

          INTEGER N

          INTEGER I, J, SUM

          I=1

          SUM = 0

          P=1

!$OMP PARALLEL REDUCTION(+: SUM) NUM_THREADS(2)

          CALL F1(J)

                ! I, N and SUM were not flushed

                !   because they were not accessible in F1

                ! J was flushed because it was accessible

          SUM = SUM + J

          CALL F2(J)

                ! I, N, and SUM were not flushed

                ! because they were not accessible in f2

                ! J was flushed because it was accessible

          SUM = SUM + I + J + P + N

!$OMP END PARALLEL

          G = SUM

      END FUNCTION G

      PROGRAM A19

        COMMON /DATA/ P, X

        INTEGER, TARGET :: X

        INTEGER, POINTER :: P

        INTEGER RESULT, G

        P => X

        RESULT = G(10)

        PRINT *, RESULT

        IF (RESULT .NE. 30) THEN

          CALL ABORT

        ENDIF

      END PROGRAM A19