1 // RUN: clang-cc -triple i386-unknown-unknown %s -emit-llvm -o %t -fblocks &&
2 void (^f)(void) = ^{};
3 
4 // rdar://6768379
5 int f0(int (^a0)()) {
6   return a0(1, 2, 3);
7 }
8 
9 // Verify that attributes on blocks are set correctly.
10 typedef struct s0 T;
11 struct s0 {
12   int a[64];
13 };
14 
15 // RUN: grep 'internal void @__f2_block_invoke_(.struct.s0\* noalias sret .*, .*, .* byval .*)' %t &&
16 struct s0 f2(struct s0 a0) {
17   return ^(struct s0 a1){ return a1; }(a0);
18 }
19 
20 // This should not crash: rdar://6808051
21 void *P = ^{
22   void *Q = __func__;
23 };
24 
25 void (^test1)(void) = ^(void) {
26   __block int i;
27   ^ { i = 1; }();
28 };
29 
30 // RUN: true
31