1// RUN: %clang_cc1 -fblocks -fobjc-arc -fobjc-runtime-has-weak -g -triple x86_64-apple-darwin -O0 -emit-llvm %s -o - | FileCheck %s
2
3// Test that the foo is aligned at an 8 byte boundary in the DWARF
4// expression (256) that locates it inside of the byref descriptor:
5// CHECK: metadata !"foo", i32 0, i64 {{[0-9]+}}, i64 64, i64 256, i32 0, metadata
6
7typedef unsigned char uint8_t;
8@protocol NSObject
9@end
10@interface NSObject <NSObject> {
11}
12@end
13typedef void (^dispatch_block_t)(void);
14typedef long dispatch_once_t;
15static __inline__ __attribute__((__always_inline__)) __attribute__((__nonnull__)) __attribute__((__nothrow__))
16void
17_dispatch_once(dispatch_once_t *predicate, dispatch_block_t block)
18{
19};
20typedef struct Buffer *BufferRef;
21typedef struct Foo_s {
22    uint8_t *data;
23} Foo;
24@protocol DelegateProtocol <NSObject>
25@end
26@interface FileReader : NSObject <DelegateProtocol>
27{
28 dispatch_once_t offset;
29}
30@end
31@implementation FileReader
32- (BufferRef) bar:(int *)index
33{
34  __attribute__((__blocks__(byref))) Foo foo;
35  _dispatch_once(&offset, ^{});
36  return 0;
37}
38@end
39