--- a/gcc/generic-match-head.c	Fri Oct 27 22:46:09 2017 +0900
+++ b/gcc/generic-match-head.c	Thu Oct 25 07:37:49 2018 +0900
@@ -1,5 +1,5 @@
 /* Preamble and helpers for the autogenerated generic-match.c file.
-   Copyright (C) 2014-2017 Free Software Foundation, Inc.
+   Copyright (C) 2014-2018 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -68,3 +68,12 @@
 {
   return true;
 }
+
+/* Return true if math operations that are beneficial only after
+   vectorization should be canonicalized.  */
+
+static inline bool
+canonicalize_math_after_vectorization_p ()
+{
+  return false;
+}