1 files changed, 48 insertions, 0 deletions
diff --git a/clang/test/CodeGenObjC/objc2-weak-import-attribute.m b/clang/test/CodeGenObjC/objc2-weak-import-attribute.m
new file mode 100644
index 0000000..201e24b
--- /dev/null
+++ b/clang/test/CodeGenObjC/objc2-weak-import-attribute.m
@@ -0,0 +1,48 @@
+// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck -check-prefix=CHECK-X86-64 %s
+
+__attribute__((weak_import)) @interface WeakRootClass @end
+
+__attribute__((weak_import)) @interface WeakClass : WeakRootClass
+@end
+
+@interface MySubclass : WeakClass @end
+
+@implementation MySubclass @end
+
+@implementation WeakClass(MyCategory) @end
+
+
+__attribute__((weak_import))
+@interface WeakClass1 @end
+
+@implementation WeakClass1(MyCategory) @end
+
+@implementation WeakClass1(YourCategory) @end
+
+ __attribute__((weak_import))
+@interface WeakClass3 
++ message;
+@end
+
+int main() {
+     [WeakClass3 message];
+}
+
+// CHECK-X86-64: OBJC_METACLASS_$_WeakRootClass" = extern_weak global
+// CHECK-X86-64: OBJC_METACLASS_$_WeakClass" = extern_weak global
+// CHECK-X86-64: OBJC_CLASS_$_WeakClass" = extern_weak global
+// CHECK-X86-64: OBJC_CLASS_$_WeakClass1" = extern_weak global
+// CHECK-X86-64: OBJC_CLASS_$_WeakClass3" = extern_weak global
+
+// Root is being implemented here. No extern_weak.
+__attribute__((weak_import)) @interface Root @end
+
+@interface Super : Root @end
+
+@interface Sub : Super @end
+
+@implementation Sub @end
+
+@implementation Root @end
+
+// CHECK-NOT-X86-64: OBJC_METACLASS_$_Root" = extern_weak global