diff --git a/test/CodeGen/incomplete-function-type.c b/test/CodeGen/incomplete-function-type.c
new file mode 100644
index 0000000..6bd872b
--- /dev/null
+++ b/test/CodeGen/incomplete-function-type.c
@@ -0,0 +1,10 @@
+// RUN: clang -emit-llvm %s -o - | not grep opaque
+
+enum teste1 (*test1)(void);
+struct tests2 (*test2)();
+struct tests3;
+void (*test3)(struct tests3);
+enum teste1 { TEST1 };
+struct tests2 { int x,y,z,a,b,c,d,e,f,g; };
+struct tests3 { float x; };
+