blocks.c revision 2475d76920b43014e661690836642ca3c9967179 
1// RUN: clang-cc -triple i386-unknown-unknown %s -emit-llvm -o %t -fblocks
2void (^f)(void) = ^{};
3
4// rdar://6768379
5int f0(int (^a0)()) {
6  return a0(1, 2, 3);
7}
8
9// Verify that attributes on blocks are set correctly.
10typedef struct s0 T;
11struct s0 {
12  int a[64];
13};
14
15// RUN: grep 'internal void @__f2_block_invoke_(.struct.s0\* noalias sret .*, .*, .* byval .*)' %t
16struct s0 f2(struct s0 a0) {
17  return ^(struct s0 a1){ return a1; }(a0);
18}
19
20// This should not crash: rdar://6808051
21void *P = ^{
22  void *Q = __func__;
23};
24
25void (^test1)(void) = ^(void) {
26  __block int i;
27  ^ { i = 1; }();
28};
29
30