--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/template/error10.C	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,71 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++98" }
+// Origin: <tilps at hotmail dot com>
+// c++/9154: poor error message for ">>" vs "> >" in template argument list
+
+
+/*
+ * Test that the error message is issued properly
+ */
+template <class T>
+class A {};
+
+A<A<int>> blah;  // { dg-error "should be '> >' within" }
+A<int>> blah2; // { dg-error "spurious '>>'" }
+
+
+/*
+ * Test that a few valid constructs containing a ">>" token in a
+ * template argument list are handled correctly.
+ */
+template <int N>
+void B(void) {}
+
+int Btest()
+{
+  B<256 >> 4>();
+}
+
+template <int N = 123>>4>
+struct C {};
+
+template <int>      struct D {};
+template <typename> struct E {};
+
+E<D< 1>>2 > > E1;
+
+const int x = 0;
+E<D< 1>>x > > E2;
+
+template <int> struct F {
+  typedef int I;
+};
+
+template <typename T = F< 1>>2 >::I>
+struct G {};
+
+/*
+ * In this special case, a valid type-id (H() is a function type) is followed
+ * by '>>', but the argument should still be parsed as an expression, which
+ * will then be rejected as non-constant expression.
+ */
+struct H
+{
+  int operator >>(int);
+};
+
+template <int V> struct L {};
+L<H() >> 5> l;  // { dg-error "" "non-constant" }
+
+
+/*
+ * This case used to not emit the nice error message because of a typo
+ *  in the code.
+ */
+template <void (*)(void)>
+struct K {};
+
+void KFunc(void);
+
+A<K<&KFunc>> k1;  // { dg-error "" }
+K<&KFunc>> k2; // { dg-error "" }