--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/cpp0x/pr88120.C	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,23 @@
+// PR c++/88120
+// { dg-do compile { target c++11 } }
+
+typedef int a;
+enum b : a;
+class c {
+  enum f { d };
+  c(f);
+  friend c operator&(c, c);
+  typedef void (c::*e)();
+  operator e();
+};
+class g {
+  template <typename, typename> b h();
+  struct k {
+    c i;
+  };
+};
+template <typename, typename> b g::h() {
+  k j;
+  &j || j.i &c::d;
+  return b();
+}