Coalesce host to device transfers in libgomp: not for link pointer

	libgomp/
	* target.c (gomp_map_vars): Call gomp_copy_host2dev instead of
	devicep->host2dev_func.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r266919

libgomp/ChangeLog

+2018-12-09  Thomas Schwinge  <thomas@codesourcery.com>
+	    Jakub Jelinek  <jakub@redhat.com>
+
+	* target.c (gomp_map_vars): Call gomp_copy_host2dev instead of
+	devicep->host2dev_func.
+
 2018-12-08  Jakub Jelinek  <jakub@redhat.com>
 
 	PR libgomp/87995

libgomp/target.c

@@ -957,9 +957,10 @@ gomp_map_vars (struct gomp_device_descr *devicep, size_t mapnum,
 		    /* Set link pointer on target to the device address of the
 		       mapped object.  */
 		    void *tgt_addr = (void *) (tgt->tgt_start + k->tgt_offset);
-		    devicep->host2dev_func (devicep->target_id,
-					    (void *) n->tgt_offset,
-					    &tgt_addr, sizeof (void *));
+		    /* We intentionally do not use coalescing here, as it's not
+		       data allocated by the current call to this function.  */
+		    gomp_copy_host2dev (devicep, (void *) n->tgt_offset,
+					&tgt_addr, sizeof (void *), NULL);
 		  }
 		array++;
 	      }