1 files changed, 73 insertions, 0 deletions
diff --git a/gcc/testsuite/objc.dg/encode-4.m b/gcc/testsuite/objc.dg/encode-4.m
new file mode 100644
index 00000000000..1f179e1dad5
--- /dev/null
+++ b/gcc/testsuite/objc.dg/encode-4.m
@@ -0,0 +1,73 @@
+/* Encoding tests for ObjC class layouts.  */
+/* Contributed by Ziemowit Laski <zlaski@apple.com>.  */
+/* { dg-options "-lobjc" } */
+/* { dg-do run } */
+
+#include <objc/Object.h>
+#ifdef __NEXT_RUNTIME__
+#include <objc/objc-class.h>
+#define OBJC_GETCLASS objc_getClass
+#else
+#include <objc/objc-api.h>
+#define OBJC_GETCLASS objc_get_class
+#endif
+
+extern void abort(void);
+extern int strcmp(const char *s1, const char *s2);
+#define CHECK_IF(expr) if(!(expr)) abort()
+
+@class Int1, Int2;
+struct Nested;
+
+struct Innermost {
+  unsigned char a, b;
+  struct Nested *encl;
+};
+
+struct Nested {
+  float a, b;
+  Int1 *next;
+  struct Innermost innermost;
+};
+
+@interface Int1: Object {
+  char a, b;
+  Int2 *int2;
+  struct Nested nested;
+}
+@end
+
+@interface Int2: Int1 {
+  struct Innermost *innermost;
+  Int1 *base;
+}
+@end
+
+@implementation Int1
+@end
+
+@implementation Int2
+@end
+
+struct objc_ivar *ivar;
+
+static void check_ivar(const char *name, const char *type) {
+  CHECK_IF(!strcmp(ivar->ivar_name, name));
+  CHECK_IF(!strcmp(ivar->ivar_type, type));
+  ivar++;
+}
+
+int main(void) {
+  ivar = ((Class)OBJC_GETCLASS("Int1"))->ivars->ivar_list;
+  check_ivar("a", "c");
+  check_ivar("b", "c");
+  check_ivar("int2", "@\"Int2\"");
+  check_ivar("nested", 
+    "{Nested=\"a\"f\"b\"f\"next\"@\"Int1\"\"innermost\"{Innermost=\"a\"C\"b\"C\"encl\"^{Nested}}}");
+    
+  ivar = ((Class)OBJC_GETCLASS("Int2"))->ivars->ivar_list;
+  check_ivar("innermost", "^{Innermost=CC^{Nested}}");
+  check_ivar("base", "@\"Int1\"");
+  
+  return 0;
+}