1 files changed, 81 insertions, 0 deletions
diff --git a/gcc/testsuite/obj-c++.dg/method-19.mm b/gcc/testsuite/obj-c++.dg/method-19.mm
new file mode 100644
index 00000000000..55890f5b404
--- /dev/null
+++ b/gcc/testsuite/obj-c++.dg/method-19.mm
@@ -0,0 +1,81 @@
+/* Test if instance methods of root classes are used as class methods, if no
+   "real" methods are found.  For receivers of type 'id' and 'Class', all
+   root classes must be considered.  */
+/* Author: Ziemowit Laski <zlaski@apple.com>.  */
+/* { dg-do run } */
+
+#include <objc/objc.h>
+
+#ifdef __NEXT_RUNTIME__
+#include <objc/objc-runtime.h>
+#define OBJC_GETCLASS objc_getClass
+#else
+#include <objc/objc-api.h>
+#define OBJC_GETCLASS objc_get_class
+#endif
+
+extern "C" {
+  extern void abort(void);
+  extern int strcmp(const char *, const char *);
+}
+#define CHECK_IF(expr) if(!(expr)) abort()
+
+@protocol Proto
+- (const char *) method4;
+@end
+
+@interface Root
+{ Class isa; }
++ (const char *) method2;
+@end
+
+@interface Derived: Root
+- (const char *) method1;
+- (const char *) method2;
+- (const char *) method3;
+@end
+
+@interface Root (Categ)
+- (const char *) method3;
+@end
+
+@implementation Root (Categ)
+- (const char *) method3 { return "Root(Categ)::-method3"; }
+- (const char *) method4 { return "Root(Categ)::-method4"; }
+@end
+
+@implementation Derived
+- (const char *) method1 { return "Derived::-method1"; }
+- (const char *) method2 { return "Derived::-method2"; }
+- (const char *) method3 { return "Derived::-method3"; }
+@end
+
+@implementation Root
+#ifdef __NEXT_RUNTIME__
++ initialize { return self; }
+#endif
+- (const char *) method1 { return "Root::-method1"; }
++ (const char *) method2 { return "Root::+method2"; }
+@end
+
+int main(void)
+{
+  Class obj = OBJC_GETCLASS("Derived");
+
+  /* None of the following should elicit compiler-time warnings.  */
+
+  CHECK_IF(!strcmp([Root method1], "Root::-method1"));
+  CHECK_IF(!strcmp([Root method2], "Root::+method2"));
+  CHECK_IF(!strcmp([Root method3], "Root(Categ)::-method3"));
+  CHECK_IF(!strcmp([Root method4], "Root(Categ)::-method4"));
+  CHECK_IF(!strcmp([Derived method1], "Root::-method1"));
+  CHECK_IF(!strcmp([Derived method2], "Root::+method2"));
+  CHECK_IF(!strcmp([Derived method3], "Root(Categ)::-method3"));
+  CHECK_IF(!strcmp([Derived method4], "Root(Categ)::-method4"));
+  CHECK_IF(!strcmp([obj method1], "Root::-method1"));
+  CHECK_IF(!strcmp([obj method2], "Root::+method2"));
+  CHECK_IF(!strcmp([obj method3], "Root(Categ)::-method3"));
+  CHECK_IF(!strcmp([obj method4], "Root(Categ)::-method4"));
+
+  return 0;
+}