1// RUN: %clang_cc1 -fblocks -emit-llvm %s -fobjc-gc -o - | FileCheck %s
2
3// CHECK: objc_assign_strongCast
4// rdar://5541393
5
6typedef __SIZE_TYPE__ size_t;
7void * malloc(size_t size);
8
9typedef struct {
10    void (^ivarBlock)(void);
11} StructWithBlock_t;
12
13int main(int argc, char *argv[]) {
14   StructWithBlock_t *swbp = (StructWithBlock_t *)malloc(sizeof(StructWithBlock_t*));
15   __block   int i = 10;
16   // assigning a Block into an struct slot should elicit a write-barrier under GC
17   swbp->ivarBlock = ^ { ++i; };
18   return 0;
19}
20