Check in LLVM r95781.
diff --git a/test/Sema/attr-nodebug.c b/test/Sema/attr-nodebug.c
new file mode 100644
index 0000000..203c2a7
--- /dev/null
+++ b/test/Sema/attr-nodebug.c
@@ -0,0 +1,8 @@
+// RUN: %clang_cc1 %s -verify -fsyntax-only
+
+int a __attribute__((nodebug)); // expected-warning {{'nodebug' attribute only applies to function types}}
+
+void t1() __attribute__((nodebug));
+
+void t2() __attribute__((nodebug(2))); // expected-error {{attribute requires 0 argument(s)}}
+