1 files changed, 22 insertions, 0 deletions
diff --git a/clang/test/Sema/nested-redef.c b/clang/test/Sema/nested-redef.c
new file mode 100644
index 00000000000..83cd4209675
--- /dev/null
+++ b/clang/test/Sema/nested-redef.c
@@ -0,0 +1,22 @@
+// RUN: clang -fsyntax-only -verify %s
+struct X { // expected-note{{previous definition is here}}
+  struct X { } x; // expected-error{{nested redefinition of 'X'}}
+}; 
+
+struct Y { };
+void f(void) {
+  struct Y { }; // okay: this is a different Y
+}
+
+struct T;
+struct Z {
+  struct T { int x; } t;
+  struct U { int x; } u;
+};
+
+void f2(void) {
+  struct T t;
+  // FIXME: this is well-formed, but Clang breaks on it struct U u;
+}
+
+