1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/testsuite/objc.dg/method-7.m b/gcc/testsuite/objc.dg/method-7.m
new file mode 100644
index 000000000..d7a7b97b7
--- /dev/null
+++ b/gcc/testsuite/objc.dg/method-7.m
@@ -0,0 +1,29 @@
+/* Check if finding multiple signatures for a method is handled gracefully.  */
+/* Author:  Ziemowit Laski <zlaski@apple.com>  */
+/* { dg-do compile } */
+/* { dg-options "-Wstrict-selector-match" } */
+
+
+#include "../objc-obj-c++-shared/Object1.h"
+
+@interface Class1
+- (void)setWindow:(Object *)wdw;
+@end
+
+@interface Class2
+- (void)setWindow:(Class1 *)window;
+@end
+
+id foo(void) {
+  Object *obj = [[Object alloc] init];
+  id obj2 = obj;
+  [obj setWindow:nil];  /* { dg-warning ".Object. may not respond to .\\-setWindow:." } */
+  /* { dg-warning "Messages without a matching method signature" "" { target *-*-* } 20 } */
+  /* { dg-warning "will be assumed to return .id. and accept" "" { target *-*-* } 20 } */
+  /* { dg-warning ".\.\.\.. as arguments" "" { target *-*-* } 20 } */
+  [obj2 setWindow:nil]; /* { dg-warning "multiple methods named .\\-setWindow:. found" } */
+  /* { dg-message "using .\\-\\(void\\)setWindow:\\(Object \\*\\)wdw." "" { target *-*-* } 10 } */
+  /* { dg-message "also found .\\-\\(void\\)setWindow:\\(Class1 \\*\\)window." "" { target *-*-* } 14 } */
+
+  return obj;
+}