1 files changed, 14 insertions, 0 deletions
diff --git a/test/Sema/attr-callback.c b/test/Sema/attr-callback.c
new file mode 100644
index 0000000000..ec12b1650a
--- /dev/null
+++ b/test/Sema/attr-callback.c
@@ -0,0 +1,14 @@
+// RUN: %clang_cc1 %s -verify -fsyntax-only
+
+// expected-no-diagnostics
+
+__attribute__((callback(1))) void no_args(void (*callback)(void));
+__attribute__((callback(1, 2, 3))) void args_1(void (*callback)(int, double), int a, double b);
+__attribute__((callback(2, 3, 3))) void args_2(int a, void (*callback)(double, double), double b);
+__attribute__((callback(2, -1, -1))) void args_3(int a, void (*callback)(double, double), double b);
+
+__attribute__((callback(callback))) void no_argsb(void (*callback)(void));
+__attribute__((callback(callback, a, 3))) void args_1b(void (*callback)(int, double), int a, double b);
+__attribute__((callback(callback, b, b))) void args_2b(int a, void (*callback)(double, double), double b);
+__attribute__((callback(2, __, __))) void args_3b(int a, void (*callback)(double, double), double b);
+__attribute__((callback(callback, -1, __))) void args_3c(int a, void (*callback)(double, double), double b);