--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/tree-dfa.h	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,42 @@
+/* Header file for tree data flow functions.
+   Copyright (C) 2013-2017 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef GCC_TREE_DFA_H
+#define GCC_TREE_DFA_H
+
+extern void renumber_gimple_stmt_uids (void);
+extern void renumber_gimple_stmt_uids_in_blocks (basic_block *, int);
+extern void dump_variable (FILE *, tree);
+extern void debug_variable (tree);
+extern void dump_dfa_stats (FILE *);
+extern void debug_dfa_stats (void);
+extern tree ssa_default_def (struct function *, tree);
+extern void set_ssa_default_def (struct function *, tree, tree);
+extern tree get_or_create_ssa_default_def (struct function *, tree);
+extern tree get_ref_base_and_extent (tree, HOST_WIDE_INT *,
+				     HOST_WIDE_INT *, HOST_WIDE_INT *, bool *);
+extern tree get_addr_base_and_unit_offset_1 (tree, HOST_WIDE_INT *,
+					     tree (*) (tree));
+extern tree get_addr_base_and_unit_offset (tree, HOST_WIDE_INT *);
+extern bool stmt_references_abnormal_ssa_name (gimple *);
+extern void replace_abnormal_ssa_names (gimple *);
+extern void dump_enumerated_decls (FILE *, dump_flags_t);
+
+
+#endif /* GCC_TREE_DFA_H */