|  | // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-runtime=macosx-10.14 -emit-llvm -x objective-c %s -o - | FileCheck %s | 
|  |  | 
|  | @interface NSObject @end | 
|  |  | 
|  | @protocol P0 @end | 
|  |  | 
|  | @interface A : NSObject <P0> | 
|  | +(Class) getClass; | 
|  | @end | 
|  |  | 
|  | @implementation A | 
|  | +(Class) getClass { return self; } | 
|  | @end | 
|  |  | 
|  | int main(void) { | 
|  | Protocol *P0 = @protocol(P0); | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // CHECK: @"_OBJC_PROTOCOL_$_P0" = weak hidden global | 
|  | // CHECK: @"_OBJC_LABEL_PROTOCOL_$_P0" = weak hidden global | 
|  | // CHECK: @"_OBJC_CLASS_PROTOCOLS_$_A" = internal global | 
|  | // CHECK: @"_OBJC_PROTOCOL_REFERENCE_$_P0" = weak hidden global | 
|  |  | 
|  | // CHECK: llvm.used = appending global [3 x ptr] | 
|  | // CHECK-SAME: "_OBJC_PROTOCOL_$_P0" | 
|  | // CHECK-SAME: "_OBJC_LABEL_PROTOCOL_$_P0" | 
|  | // CHECK-SAME: "_OBJC_PROTOCOL_REFERENCE_$_P0" | 
|  |  | 
|  | // CHECK: llvm.compiler.used = appending global [7 x ptr] | 
|  | // CHECK-SAME: OBJC_CLASS_NAME_ | 
|  | // CHECK-SAME: OBJC_METH_VAR_NAME_ | 
|  | // CHECK-SAME: OBJC_METH_VAR_TYPE_ | 
|  | // CHECK-SAME: "_OBJC_$_CLASS_METHODS_A" | 
|  | // CHECK-SAME: OBJC_CLASS_NAME_.1 | 
|  | // CHECK-SAME: "_OBJC_CLASS_PROTOCOLS_$_A" | 
|  | // CHECK-SAME: "OBJC_LABEL_CLASS_$" | 
|  | // CHECK-SAME: section "llvm.metadata" |