--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/warn/Wnull-conversion-2.C	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,45 @@
+// { dg-do compile }
+// { dg-options "-Wconversion-null" }
+
+#include <stddef.h>
+
+class Foo {
+ public:
+  template <typename T1, typename T2>
+  static void Compare(const T1& expected, const T2& actual) { }
+
+  template <typename T1, typename T2>
+  static void Compare(const T1& expected, T2* actual) { }
+
+};
+
+template<typename T1>
+class Foo2 {
+ public:
+  Foo2(int x);
+  template<typename T2> void Bar(T2 y);
+};
+
+template<typename T3> void func(T3 x) { }
+
+typedef Foo2<int> MyFooType;
+
+void func1(long int a) {
+  MyFooType *foo2 = new MyFooType(NULL); // { dg-warning "passing NULL to" }
+  foo2->Bar(a);
+  func(NULL);
+  func<int>(NULL);                       // { dg-warning "passing NULL to" }
+  func<int *>(NULL);
+}
+
+int x = 1;
+
+main()
+{
+  int *p = &x;
+
+  Foo::Compare(0, *p);
+  Foo::Compare<long int, int>(NULL, p);  // { dg-warning "passing NULL to" }
+  Foo::Compare(NULL, p);
+  func1(NULL);                           // { dg-warning "passing NULL to" }
+}