1 files changed, 54 insertions, 0 deletions
diff --git a/gcc/testsuite/objc.dg/lookup-1.m b/gcc/testsuite/objc.dg/lookup-1.m
new file mode 100644
index 00000000000..eaabcb2c049
--- /dev/null
+++ b/gcc/testsuite/objc.dg/lookup-1.m
@@ -0,0 +1,54 @@
+/* { dg-do run } */
+
+#include <objc/Object.h>
+#include <stdlib.h>
+
+typedef struct MyWidget {
+  int a;
+} MyWidget;
+
+MyWidget gWidget = { 17 };
+
+@protocol MyProto
+- (MyWidget *)widget;
+@end
+
+@interface Foo: Object
+@end
+
+@interface Bar: Foo <MyProto>
+@end
+
+@interface Container: Object
++ (MyWidget *)elementForView:(Foo *)view;
+@end
+
+@implementation Foo
+@end
+
+@implementation Bar
+- (MyWidget *)widget {
+  return &gWidget;
+}
+@end
+
+@implementation Container
++ (MyWidget *)elementForView:(Foo *)view
+{
+  MyWidget *widget = nil;
+  if ([view conformsTo:@protocol(MyProto)]) {
+    widget = [(Foo <MyProto> *)view widget];
+  }
+  return widget;
+}
+@end
+
+int main(void) {
+  id view = [Bar new];
+  MyWidget *w = [Container elementForView: view];
+
+  if (!w || w->a != 17)
+    abort ();
+
+  return 0;
+}