|  | // RUN: %clang_cc1 -emit-llvm -x objective-c %s -o - | FileCheck %s | 
|  | // rdar://16203115 | 
|  |  | 
|  | @interface NSObject @end | 
|  |  | 
|  | @protocol P0; | 
|  |  | 
|  | @interface A : NSObject <P0> | 
|  | +(Class) getClass; | 
|  | @end | 
|  |  | 
|  | @implementation A | 
|  | +(Class) getClass { return self; } | 
|  | @end | 
|  |  | 
|  | int main() { | 
|  | Protocol *P0 = @protocol(P0); | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // CHECK: @"\01l_OBJC_PROTOCOL_$_P0" = weak hidden global | 
|  | // CHECK: @"\01l_OBJC_CLASS_PROTOCOLS_$_A" = private global | 
|  | // CHECK: @"\01l_OBJC_LABEL_PROTOCOL_$_P0" = weak hidden global | 
|  | // CHECK: @"\01l_OBJC_PROTOCOL_REFERENCE_$_P0" = weak hidden global | 
|  |  | 
|  | // CHECK: llvm.compiler.used = appending global [10 x i8*] {{[^"]*}}OBJC_CLASS_NAME_{{[^"]*}}OBJC_METH_VAR_NAME_{{[^"]*}}OBJC_METH_VAR_TYPE_{{[^"]*}}"\01l_OBJC_$_CLASS_METHODS_A"{{[^"]*}}"\01l_OBJC_CLASS_PROTOCOLS_$_A"{{[^"]*}}OBJC_CLASS_NAME_.1{{[^"]*}}"\01l_OBJC_PROTOCOL_$_P0"{{[^"]*}}"\01l_OBJC_LABEL_PROTOCOL_$_P0"{{[^"]*}}"\01l_OBJC_PROTOCOL_REFERENCE_$_P0"{{[^"]*}}"OBJC_LABEL_CLASS_$"{{[^"]*}} section "llvm.metadata" |