1 files changed, 43 insertions, 0 deletions
diff --git a/gcc/testsuite/objc.dg/method-9.m b/gcc/testsuite/objc.dg/method-9.m
new file mode 100644
index 00000000000..ba832840062
--- /dev/null
+++ b/gcc/testsuite/objc.dg/method-9.m
@@ -0,0 +1,43 @@
+/* Check if finding multiple signatures for a method is handled gracefully
+   when method lookup succeeds (see also method-7.m).  */
+/* Contributed by Ziemowit Laski <zlaski@apple.com>  */
+/* { dg-do compile } */
+
+#include <objc/Object.h>
+
+@protocol MyObject
+- (id)initWithData:(Object *)data;
+@end
+
+@protocol SomeOther
+- (id)initWithData:(int)data;
+@end
+
+@protocol MyCoding
+- (id)initWithData:(id<MyObject, MyCoding>)data;
+@end
+
+@interface NTGridDataObject: Object <MyCoding>
+{
+    Object<MyCoding> *_data;
+}
++ (NTGridDataObject*)dataObject:(id<MyObject, MyCoding>)data;
+@end
+
+@implementation NTGridDataObject
+- (id)initWithData:(id<MyObject, MyCoding>)data {
+  return data;
+}
++ (NTGridDataObject*)dataObject:(id<MyObject, MyCoding>)data
+{
+    NTGridDataObject *result = [[NTGridDataObject alloc] initWithData:data];
+     /* { dg-warning "multiple methods named .\\-initWithData:. found" "" { target *-*-* } 33 } */
+     /* { dg-warning "using .\\-\\(id\\)initWithData:\\(Object \\*\\)data." "" { target *-*-* } 9 } */
+     /* { dg-warning "also found .\\-\\(id\\)initWithData:\\(id <MyObject, MyCoding>\\)data." "" { target *-*-* } 17 } */
+     /* { dg-warning "also found .\\-\\(id\\)initWithData:\\(int\\)data." "" { target *-*-* } 13 } */
+
+     /* The following warning is a consequence of picking the "wrong" method signature.  */
+     /* { dg-warning "passing arg 1 of .initWithData:. from incompatible pointer type" "" { target *-*-* } 33 } */
+    return result;
+}
+@end