-extern tree lhd_tree_inlining_walk_subtrees (tree *, int *, walk_tree_fn,
- void *, struct pointer_set_t*);
-extern int lhd_tree_inlining_cannot_inline_tree_fn (tree *);
-extern int lhd_tree_inlining_disregard_inline_limits (tree);
-extern int lhd_tree_inlining_auto_var_in_fn_p (tree, tree);
-extern tree lhd_tree_inlining_convert_parm_for_inlining (tree, tree, tree, int);