--- a/gcc/generic-match-head.c	Thu Oct 25 07:37:49 2018 +0900
+++ b/gcc/generic-match-head.c	Thu Feb 13 11:34:05 2020 +0900
@@ -1,5 +1,5 @@
 /* Preamble and helpers for the autogenerated generic-match.c file.
-   Copyright (C) 2014-2018 Free Software Foundation, Inc.
+   Copyright (C) 2014-2020 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -27,14 +27,16 @@
 #include "gimple.h"
 #include "ssa.h"
 #include "cgraph.h"
+#include "vec-perm-indices.h"
 #include "fold-const.h"
+#include "fold-const-call.h"
 #include "stor-layout.h"
 #include "tree-dfa.h"
 #include "builtins.h"
 #include "case-cfn-macros.h"
 #include "gimplify.h"
 #include "optabs-tree.h"
-
+#include "dbgcnt.h"
 
 /* Routine to determine if the types T1 and T2 are effectively
    the same for GENERIC.  If T1 or T2 is not a type, the test
@@ -77,3 +79,12 @@
 {
   return false;
 }
+
+/* Return true if successive divisions can be optimized.
+   Defer to GIMPLE opts.  */
+
+static inline bool
+optimize_successive_divisions_p (tree, tree)
+{
+  return false;
+}