clang/test/CodeGenObjC/debug-info-id-with-protocol.m

// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -g %s -o - | FileCheck %s
__attribute((objc_root_class)) @interface NSObject {
	id isa;
}
+ (id)alloc;
- (id)init;
- (id)retain;
@end

void NSLog(id, ...);

@protocol MyProtocol

-(const char *)hello;

@end

@interface MyClass : NSObject {
}

@property (nonatomic, assign) id <MyProtocol> bad_carrier;
@property (nonatomic, assign) id good_carrier;

@end

@implementation MyClass
@end

int main()
{
    @autoreleasepool
    {
        MyClass *my_class = [MyClass alloc];
        NSLog(@"%p\n", my_class.bad_carrier);
        NSLog(@"%p\n", my_class.good_carrier);
    }
}
// Verify that the debug type for both variables is 'id'.
// CHECK: metadata !{metadata !"0x101\00bad_carrier\00{{[0-9]+}}\000", metadata !{{[0-9]+}}, null, metadata ![[IDTYPE:[0-9]+]]} ; [ DW_TAG_arg_variable ] [bad_carrier] [line 0]
//
// CHECK: metadata !{metadata !"0x101\00good_carrier\00{{[0-9]+}}\000", metadata !{{[0-9]+}}, null, metadata ![[IDTYPE]]} ; [ DW_TAG_arg_variable ] [good_carrier] [line 0]
// CHECK !{{.*}}[[IDTYPE]] = metadata !{metadata !"0x16\00id\00{{[0-9]+}}\000\000\000\000", null, metadata !{{[0-9]+}}, metadata !{{[0-9]+}}} ; [ DW_TAG_typedef ] [id]