1// RUN: %clang_cc1 -triple x86_64-apple-macosx -emit-llvm %s -o - | FileCheck %s
2
3// Test that we produce a declaration for the protocol. It must be matched
4// by a definition in another TU, so external is the correct linkage
5// (not extern_weak).
6// CHECK: @"\01l_OBJC_PROTOCOL_$_p1" = external global
7
8@interface NSObject
9@end
10
11@protocol p1;
12
13@interface I1 : NSObject <p1>
14@end
15
16@implementation I1
17@end
18