[tuples] frv modify_expr changes

[Aldy Hernandez]

Committed to branch.


	* config/frv/frv.c (frv_expand_builtin_va_start): Change MODIFY_EXPR
	to GIMPLE_MODIFY_STMT.

Index: config/frv/frv.c
===================================================================
--- config/frv/frv.c	(revision 118382)
+++ config/frv/frv.c	(working copy)
@@ -2203,7 +2203,7 @@ frv_expand_builtin_va_start (tree valist
       debug_rtx (nextarg);
     }
 
-  t = build2 (MODIFY_EXPR, TREE_TYPE (valist), valist,
+  t = build2 (GIMPLE_MODIFY_STMT, TREE_TYPE (valist), valist,
 	      make_tree (ptr_type_node, nextarg));
   TREE_SIDE_EFFECTS (t) = 1;