--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/gcse-common.h	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,47 @@
+/* Structures and prototypes common across the normal GCSE
+   implementation and the post-reload implementation.
+   Copyright (C) 1997-2017 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_GCSE_COMMON_H
+#define GCC_GCSE_COMMON_H
+
+typedef vec<rtx_insn *> vec_rtx_heap;
+struct modify_pair
+{
+  rtx dest;                     /* A MEM.  */
+  rtx dest_addr;                /* The canonical address of `dest'.  */
+};
+
+typedef vec<modify_pair> vec_modify_pair_heap;
+
+struct gcse_note_stores_info
+{
+  rtx_insn *insn;
+  vec<modify_pair> *canon_mem_list;
+};
+
+extern void compute_transp (const_rtx, int, sbitmap *, bitmap,
+			    bitmap, vec<modify_pair> *);
+extern void record_last_mem_set_info_common (rtx_insn *,
+					     vec<rtx_insn *> *,
+					     vec<modify_pair> *,
+					     bitmap, bitmap);
+
+
+#endif