Detect operator-> chains of arbitrary length.  Use a terrible data structure
to strike fear into the hearts of CPUs everywhere.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83133 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaCXX/overloaded-operator.cpp b/test/SemaCXX/overloaded-operator.cpp
index c849a14..31da58d 100644
--- a/test/SemaCXX/overloaded-operator.cpp
+++ b/test/SemaCXX/overloaded-operator.cpp
@@ -224,3 +224,19 @@
   AX a; 
   a->b = 0; // expected-error {{circular pointer delegation detected}}
 }
+
+struct CircA {
+  struct CircB& operator->();
+  int val;
+};
+struct CircB {
+  struct CircC& operator->();
+};
+struct CircC {
+  struct CircA& operator->();
+};
+
+void circ() {
+  CircA a;
+  a->val = 0; // expected-error {{circular pointer delegation detected}}
+}