! This file created from test/mpi/f77/pt2pt/dummyf.f with f77tof90

! -*- Mode: Fortran; -*-

!

!  (C) 2011 by Argonne National Laboratory.

!      See COPYRIGHT in top-level directory.

!

!

! This file is used to disable certain compiler optimizations that

! can cause incorrect results with the test in greqf.f.  It provides a

! point where extrastate may be modified, limiting the compilers ability

! to move code around.

! The include of mpif.h is not needed in the F77 case but in the

! F90 case it is, because in that case, extrastate is defined as an

! integer (kind=MPI_ADDRESS_KIND), and the script that creates the

! F90 tests from the F77 tests looks for mpif.h

      subroutine dummyupdate( extrastate )

      use mpi_f08

      integer (kind=MPI_ADDRESS_KIND) extrastate, valin, valout, val

      end