1 files changed, 45 insertions, 0 deletions
diff --git a/gcc/testsuite/obj-c++.dg/attributes/parameter-attribute-1.mm b/gcc/testsuite/obj-c++.dg/attributes/parameter-attribute-1.mm
new file mode 100644
index 000000000..a4ba25943
--- /dev/null
+++ b/gcc/testsuite/obj-c++.dg/attributes/parameter-attribute-1.mm
@@ -0,0 +1,45 @@
+/* Test __attribute__((unused)) for an Objective-C method parameter.  */
+/* { dg-do compile } */
+/* { dg-options "-Wunused-parameter" } */
+
+#include <objc/objc.h>
+
+@interface MyRootClass
+{
+  Class isa;
+}
+- (id) method1: (id) argument1;
+- (id) method2: (id) __attribute__((unused)) argument1;
+- (id) method3: (id) __attribute__((unused)) argument1
+   andArgument: (id) argument2;
+- (id) method4: (id) __attribute__((unused)) argument1
+   andArgument: (id) __attribute__((unused)) argument2;
+- (id) method5: (id) argument1
+   andArgument: (id) __attribute__ ((unused)) argument2;
+@end
+
+@implementation MyRootClass
+- (id) method1: (id) argument1  /* { dg-warning "unused parameter .argument1." } */
+{
+  return nil;
+}
+- (id) method2: (id) __attribute__((unused)) argument1
+{
+  return nil;
+}
+- (id) method3: (id) __attribute__((unused)) argument1
+   andArgument: (id) argument2 /* { dg-warning "unused parameter .argument2." } */
+{
+  return nil;
+}
+- (id) method4: (id) __attribute__((unused)) argument1
+   andArgument: (id) __attribute__((unused)) argument2
+{
+  return nil;
+}
+- (id) method5: (id) argument1
+   andArgument: (id) __attribute__ ((unused)) argument2 /* { dg-warning "unused parameter .argument1." } */
+{
+  return nil;
+}
+@end