--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/SemaTemplate/class-template-noexcept.cpp	Wed Nov 09 17:45:10 2022 +0900
@@ -0,0 +1,32 @@
+// RUN: %clang_cc1 -verify %s
+// RUN: %clang_cc1 -std=c++11 -verify %s
+// RUN: %clang_cc1 -std=c++17 -verify %s
+// RUN: %clang_cc1 -std=c++1z -verify %s
+#if __cplusplus >= 201703
+// expected-no-diagnostics
+#endif
+class A {
+public:
+  static const char X;
+};
+const char A::X = 0;
+
+template<typename U> void func() noexcept(U::X);
+
+template<class... B, char x>
+#if __cplusplus >= 201703
+void foo(void(B...) noexcept(x)) {} 
+#else
+void foo(void(B...) noexcept(x)) {} // expected-note{{candidate template ignored}}
+#endif
+
+void bar()
+{
+#if __cplusplus >= 201703
+  foo(func<A>);
+#else
+  foo(func<A>);	// expected-error{{no matching function for call}}
+#endif	
+}
+
+