Index: gcc/fortran/trans-array.c
===================================================================
*** gcc/fortran/trans-array.c	(revision 264364)
--- gcc/fortran/trans-array.c	(working copy)
*************** gfc_get_array_span (tree desc, gfc_expr
*** 849,858 ****
    else
      {
        /* If none of the fancy stuff works, the span is the element
! 	 size of the array.  */
        tmp = gfc_get_element_type (TREE_TYPE (desc));
!       tmp = fold_convert (gfc_array_index_type,
! 			  size_in_bytes (tmp));
      }
    return tmp;
  }
--- 849,870 ----
    else
      {
        /* If none of the fancy stuff works, the span is the element
! 	 size of the array. Attempt to deal with unbounded character
! 	 types if possible. Otherwise, return NULL_TREE.  */
        tmp = gfc_get_element_type (TREE_TYPE (desc));
!       if (tmp && TREE_CODE (tmp) == ARRAY_TYPE
! 	  && TYPE_MAX_VALUE (TYPE_DOMAIN (tmp)) == NULL_TREE)
! 	{
! 	  if (expr->expr_type == EXPR_VARIABLE
! 	      && expr->ts.type == BT_CHARACTER)
! 	    tmp = fold_convert (gfc_array_index_type,
! 				gfc_get_expr_charlen (expr));
! 	  else
! 	    tmp = NULL_TREE;
! 	}
!       else
! 	tmp = fold_convert (gfc_array_index_type,
! 			    size_in_bytes (tmp));
      }
    return tmp;
  }
*************** gfc_conv_expr_descriptor (gfc_se *se, gf
*** 7074,7080 ****

  	      /* ....and set the span field.  */
  	      tmp = gfc_get_array_span (desc, expr);
! 	      gfc_conv_descriptor_span_set (&se->pre, se->expr, tmp);
  	    }
  	  else if (se->want_pointer)
  	    {
--- 7086,7093 ----

  	      /* ....and set the span field.  */
  	      tmp = gfc_get_array_span (desc, expr);
! 	      if (tmp != NULL_TREE)
! 		gfc_conv_descriptor_span_set (&se->pre, se->expr, tmp);
  	    }
  	  else if (se->want_pointer)
  	    {
*************** gfc_conv_expr_descriptor (gfc_se *se, gf
*** 7344,7356 ****
        desc = info->descriptor;
        if (se->direct_byref && !se->byref_noassign)
  	{
! 	  /* For pointer assignments we fill in the destination....  */
  	  parm = se->expr;
  	  parmtype = TREE_TYPE (parm);
-
- 	  /* ....and set the span field.  */
- 	  tmp = gfc_get_array_span (desc, expr);
- 	  gfc_conv_descriptor_span_set (&loop.pre, parm, tmp);
  	}
        else
  	{
--- 7357,7365 ----
        desc = info->descriptor;
        if (se->direct_byref && !se->byref_noassign)
  	{
! 	  /* For pointer assignments we fill in the destination.  */
  	  parm = se->expr;
  	  parmtype = TREE_TYPE (parm);
  	}
        else
  	{
*************** gfc_conv_expr_descriptor (gfc_se *se, gf
*** 7388,7393 ****
--- 7397,7407 ----
  	    }
  	}

+       /* Set the span field.  */
+       tmp = gfc_get_array_span (desc, expr);
+       if (tmp != NULL_TREE)
+ 	gfc_conv_descriptor_span_set (&loop.pre, parm, tmp);
+
        offset = gfc_index_zero_node;

        /* The following can be somewhat confusing.  We have two
Index: gcc/testsuite/gfortran.dg/assign_10.f90
===================================================================
*** gcc/testsuite/gfortran.dg/assign_10.f90	(revision 264364)
--- gcc/testsuite/gfortran.dg/assign_10.f90	(working copy)
*************** end
*** 23,27 ****
  ! cases will all yield a temporary, so that atmp appears 18 times.
  ! Note that it is the kind conversion that generates the temp.
  !
! ! { dg-final { scan-tree-dump-times "parm" 18 "original" } }
  ! { dg-final { scan-tree-dump-times "atmp" 18 "original" } }
--- 23,27 ----
  ! cases will all yield a temporary, so that atmp appears 18 times.
  ! Note that it is the kind conversion that generates the temp.
  !
! ! { dg-final { scan-tree-dump-times "parm" 20 "original" } }
  ! { dg-final { scan-tree-dump-times "atmp" 18 "original" } }
Index: gcc/testsuite/gfortran.dg/pointer_array_10.f90
===================================================================
*** gcc/testsuite/gfortran.dg/pointer_array_10.f90	(nonexistent)
--- gcc/testsuite/gfortran.dg/pointer_array_10.f90	(working copy)
***************
*** 0 ****
--- 1,27 ----
+ ! { dg-do run }
+ !
+ ! Test the fix for PR87336, in which the 'span' field of the array
+ ! descriptor, passed to 'show', was not set.
+ !
+ ! Contributed by Juergen Reuter  <juergen.reuter@desy.de> following
+ ! a posting to clf by 'Spectrum'.
+ !
+ program main
+   implicit none
+   integer, target :: a( 2:4 )
+
+   a = [2,3,4]
+ !  print *, "a [before] = ", a
+   call show( a )
+ !  print *, "a [after]  = ", a
+   if (any (a .ne. [200,300,400])) stop 1
+
+ contains
+   subroutine show( arr )
+     integer, pointer, intent(in) :: arr(:)
+ !    print *, "arr = ", arr
+ !    print *, "bounds = ", lbound(arr), ubound(arr)
+     arr(:) = [200,300,400]
+ !    print *, "arr2= ", arr
+   end subroutine show
+   end program
Index: gcc/testsuite/gfortran.dg/transpose_optimization_2.f90
===================================================================
*** gcc/testsuite/gfortran.dg/transpose_optimization_2.f90	(revision 264364)
--- gcc/testsuite/gfortran.dg/transpose_optimization_2.f90	(working copy)
*************** end
*** 60,64 ****
  !
  ! The check below for temporaries gave 14 and 33 for "parm" and "atmp".
  !
! ! { dg-final { scan-tree-dump-times "parm" 66 "original" } }
  ! { dg-final { scan-tree-dump-times "atmp" 12 "original" } }
--- 60,64 ----
  !
  ! The check below for temporaries gave 14 and 33 for "parm" and "atmp".
  !
! ! { dg-final { scan-tree-dump-times "parm" 72 "original" } }
  ! { dg-final { scan-tree-dump-times "atmp" 12 "original" } }
