--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/gimple-expr.h	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,176 @@
+/* Header file for gimple decl, type and expressions.
+   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_GIMPLE_EXPR_H
+#define GCC_GIMPLE_EXPR_H
+
+extern bool useless_type_conversion_p (tree, tree);
+
+
+extern void gimple_set_body (tree, gimple_seq);
+extern gimple_seq gimple_body (tree);
+extern bool gimple_has_body_p (tree);
+extern const char *gimple_decl_printable_name (tree, int);
+extern tree copy_var_decl (tree, tree, tree);
+extern tree create_tmp_var_name (const char *);
+extern tree create_tmp_var_raw (tree, const char * = NULL);
+extern tree create_tmp_var (tree, const char * = NULL);
+extern tree create_tmp_reg (tree, const char * = NULL);
+extern tree create_tmp_reg_fn (struct function *, tree, const char *);
+
+
+extern void extract_ops_from_tree (tree, enum tree_code *, tree *, tree *,
+				   tree *);
+extern void gimple_cond_get_ops_from_tree (tree, enum tree_code *, tree *,
+					   tree *);
+extern bool is_gimple_lvalue (tree);
+extern bool is_gimple_condexpr (tree);
+extern bool is_gimple_address (const_tree);
+extern bool is_gimple_invariant_address (const_tree);
+extern bool is_gimple_ip_invariant_address (const_tree);
+extern bool is_gimple_min_invariant (const_tree);
+extern bool is_gimple_ip_invariant (const_tree);
+extern bool is_gimple_reg (tree);
+extern bool is_gimple_val (tree);
+extern bool is_gimple_asm_val (tree);
+extern bool is_gimple_min_lval (tree);
+extern bool is_gimple_call_addr (tree);
+extern bool is_gimple_mem_ref_addr (tree);
+extern void flush_mark_addressable_queue (void);
+extern void mark_addressable (tree);
+extern bool is_gimple_reg_rhs (tree);
+
+/* Return true if a conversion from either type of TYPE1 and TYPE2
+   to the other is not required.  Otherwise return false.  */
+
+static inline bool
+types_compatible_p (tree type1, tree type2)
+{
+  return (type1 == type2
+	  || (useless_type_conversion_p (type1, type2)
+	      && useless_type_conversion_p (type2, type1)));
+}
+
+/* Return true if TYPE is a suitable type for a scalar register variable.  */
+
+static inline bool
+is_gimple_reg_type (tree type)
+{
+  return !AGGREGATE_TYPE_P (type);
+}
+
+/* Return true if T is a variable.  */
+
+static inline bool
+is_gimple_variable (tree t)
+{
+  return (TREE_CODE (t) == VAR_DECL
+	  || TREE_CODE (t) == PARM_DECL
+	  || TREE_CODE (t) == RESULT_DECL
+	  || TREE_CODE (t) == SSA_NAME);
+}
+
+/*  Return true if T is a GIMPLE identifier (something with an address).  */
+
+static inline bool
+is_gimple_id (tree t)
+{
+  return (is_gimple_variable (t)
+	  || TREE_CODE (t) == FUNCTION_DECL
+	  || TREE_CODE (t) == LABEL_DECL
+	  || TREE_CODE (t) == CONST_DECL
+	  /* Allow string constants, since they are addressable.  */
+	  || TREE_CODE (t) == STRING_CST);
+}
+
+/* Return true if OP, an SSA name or a DECL is a virtual operand.  */
+
+static inline bool
+virtual_operand_p (tree op)
+{
+  if (TREE_CODE (op) == SSA_NAME)
+    return SSA_NAME_IS_VIRTUAL_OPERAND (op);
+
+  if (TREE_CODE (op) == VAR_DECL)
+    return VAR_DECL_IS_VIRTUAL_OPERAND (op);
+
+  return false;
+}
+
+/*  Return true if T is something whose address can be taken.  */
+
+static inline bool
+is_gimple_addressable (tree t)
+{
+  return (is_gimple_id (t) || handled_component_p (t)
+	  || TREE_CODE (t) == MEM_REF);
+}
+
+/* Return true if T is a valid gimple constant.  */
+
+static inline bool
+is_gimple_constant (const_tree t)
+{
+  switch (TREE_CODE (t))
+    {
+    case INTEGER_CST:
+    case REAL_CST:
+    case FIXED_CST:
+    case COMPLEX_CST:
+    case VECTOR_CST:
+    case STRING_CST:
+      return true;
+
+    default:
+      return false;
+    }
+}
+
+/* A wrapper around extract_ops_from_tree with 3 ops, for callers which
+   expect to see only a maximum of two operands.  */
+
+static inline void
+extract_ops_from_tree (tree expr, enum tree_code *code, tree *op0,
+		       tree *op1)
+{
+  tree op2;
+  extract_ops_from_tree (expr, code, op0, op1, &op2);
+  gcc_assert (op2 == NULL_TREE);
+}
+
+/* Given a valid GIMPLE_CALL function address return the FUNCTION_DECL
+   associated with the callee if known.  Otherwise return NULL_TREE.  */
+
+static inline tree
+gimple_call_addr_fndecl (const_tree fn)
+{
+  if (fn && TREE_CODE (fn) == ADDR_EXPR)
+    {
+      tree fndecl = TREE_OPERAND (fn, 0);
+      if (TREE_CODE (fndecl) == MEM_REF
+	  && TREE_CODE (TREE_OPERAND (fndecl, 0)) == ADDR_EXPR
+	  && integer_zerop (TREE_OPERAND (fndecl, 1)))
+	fndecl = TREE_OPERAND (TREE_OPERAND (fndecl, 0), 0);
+      if (TREE_CODE (fndecl) == FUNCTION_DECL)
+	return fndecl;
+    }
+  return NULL_TREE;
+}
+
+#endif /* GCC_GIMPLE_EXPR_H */