}
t = build2 (GIMPLE_MODIFY_STMT, TREE_TYPE (valist), valist,
- make_tree (ptr_type_node, nextarg));
+ fold_convert (TREE_TYPE (valist),
+ make_tree (sizetype, nextarg)));
TREE_SIDE_EFFECTS (t) = 1;
expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);