--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/cpp1z/using7.C	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,33 @@
+// PR c++/91673 - ICE with noexcept in alias-declaration.
+// { dg-do compile { target c++17 } }
+
+template<typename T, bool B>
+using U1 = T() noexcept(B);
+
+template<bool B>
+struct S {
+  int I;
+  static constexpr bool b = true;
+
+  template<typename T>
+  using U2 = T() noexcept(B);
+
+  template<typename T>
+  using U8 = T() noexcept(b);
+
+  template<typename T>
+  using U10 = T(int p) noexcept(noexcept(p));
+
+  template<typename T, bool B2>
+  using U11 = T() noexcept(B2);
+
+  using U3 = void() noexcept(B);
+  using U9 = void() noexcept(b);
+  using U4 = void() noexcept(noexcept (I));
+  using U5 = void(int p) noexcept(noexcept(p));
+
+  typedef void(*T1)() noexcept(B);
+  typedef void(*T2)(int p) noexcept(noexcept(p));
+};
+
+S<true> s;