1// RUN: %clang_cc1 -triple i386-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -fblocks -o - %s | FileCheck %s
2
3// test1.  All of this is somehow testing rdar://6676764
4struct S {
5  void (^F)(struct S*);
6} P;
7
8
9@interface T
10  - (int)foo: (T* (^)(T*)) x;
11@end
12
13void foo(T *P) {
14 [P foo: 0];
15}
16
17@interface A
18-(void) im0;
19@end
20
21// CHECK: define internal i32 @"__8-[A im0]_block_invoke"(
22@implementation A
23-(void) im0 {
24  (void) ^{ return 1; }();
25}
26@end
27
28@interface B : A @end
29@implementation B
30-(void) im1 {
31  ^(void) { [self im0]; }();
32}
33-(void) im2 {
34  ^{ [super im0]; }();
35}
36-(void) im3 {
37  ^{ ^{[super im0];}(); }();
38}
39@end
40
41// rdar://problem/9006315
42// In-depth test for the initialization of a __weak __block variable.
43@interface Test2 -(void) destroy; @end
44void test2(Test2 *x) {
45  extern void test2_helper(void (^)(void));
46  // CHECK-LABEL:    define void @test2(
47  // CHECK:      [[X:%.*]] = alloca [[TEST2:%.*]]*,
48  // CHECK-NEXT: [[WEAKX:%.*]] = alloca [[WEAK_T:%.*]],
49  // CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
50  // CHECK-NEXT: store [[TEST2]]*
51
52  // isa=1 for weak byrefs.
53  // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[WEAK_T]]* [[WEAKX]], i32 0, i32 0
54  // CHECK-NEXT: store i8* inttoptr (i32 1 to i8*), i8** [[T0]]
55
56  // Forwarding.
57  // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[WEAK_T]]* [[WEAKX]], i32 0, i32 1
58  // CHECK-NEXT: store [[WEAK_T]]* [[WEAKX]], [[WEAK_T]]** [[T1]]
59
60  // Flags.  This is just BLOCK_HAS_COPY_DISPOSE BLOCK_BYREF_LAYOUT_UNRETAINED
61  // CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[WEAK_T]]* [[WEAKX]], i32 0, i32 2
62  // CHECK-NEXT: store i32 1375731712, i32* [[T2]]
63
64  // Size.
65  // CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds [[WEAK_T]]* [[WEAKX]], i32 0, i32 3
66  // CHECK-NEXT: store i32 28, i32* [[T3]]
67
68  // Copy and dipose helpers.
69  // CHECK-NEXT: [[T4:%.*]] = getelementptr inbounds [[WEAK_T]]* [[WEAKX]], i32 0, i32 4
70  // CHECK-NEXT: store i8* bitcast (void (i8*, i8*)* @__Block_byref_object_copy_{{.*}} to i8*), i8** [[T4]]
71  // CHECK-NEXT: [[T5:%.*]] = getelementptr inbounds [[WEAK_T]]* [[WEAKX]], i32 0, i32 5
72  // CHECK-NEXT: store i8* bitcast (void (i8*)* @__Block_byref_object_dispose_{{.*}} to i8*), i8** [[T5]]
73
74  // Actually capture the value.
75  // CHECK-NEXT: [[T6:%.*]] = getelementptr inbounds [[WEAK_T]]* [[WEAKX]], i32 0, i32 6
76  // CHECK-NEXT: [[CAPTURE:%.*]] = load [[TEST2]]** [[X]]
77  // CHECK-NEXT: store [[TEST2]]* [[CAPTURE]], [[TEST2]]** [[T6]]
78
79  // Then we initialize the block, blah blah blah.
80  // CHECK:      call void @test2_helper(
81
82  // Finally, kill the variable with BLOCK_FIELD_IS_BYREF.  We're not
83  // supposed to pass BLOCK_FIELD_IS_WEAK here.
84  // CHECK:      [[T0:%.*]] = bitcast [[WEAK_T]]* [[WEAKX]] to i8*
85  // CHECK:      call void @_Block_object_dispose(i8* [[T0]], i32 8)
86
87  __weak __block Test2 *weakX = x;
88  test2_helper(^{ [weakX destroy]; });
89}
90
91// rdar://problem/9124263
92// In the test above, check that the use in the invocation function
93// doesn't require a read barrier.
94// CHECK-LABEL:    define internal void @__test2_block_invoke
95// CHECK:      [[BLOCK:%.*]] = bitcast i8* {{%.*}} to [[BLOCK_T]]*
96// CHECK-NOT:  bitcast
97// CHECK:      [[T0:%.*]] = getelementptr inbounds [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
98// CHECK-NEXT: [[T1:%.*]] = load i8** [[T0]]
99// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to [[WEAK_T]]{{.*}}*
100// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds [[WEAK_T]]{{.*}}* [[T2]], i32 0, i32 1
101// CHECK-NEXT: [[T4:%.*]] = load [[WEAK_T]]{{.*}}** [[T3]]
102// CHECK-NEXT: [[WEAKX:%.*]] = getelementptr inbounds [[WEAK_T]]{{.*}}* [[T4]], i32 0, i32 6
103// CHECK-NEXT: [[T0:%.*]] = load [[TEST2]]** [[WEAKX]], align 4
104
105// rdar://problem/12722954
106// Make sure that ... is appropriately positioned in a block call.
107void test3(void (^block)(int, ...)) {
108  block(0, 1, 2, 3);
109}
110// CHECK-LABEL:    define void @test3(
111// CHECK:      [[BLOCK:%.*]] = alloca void (i32, ...)*, align 4
112// CHECK-NEXT: store void (i32, ...)*
113// CHECK-NEXT: [[T0:%.*]] = load void (i32, ...)** [[BLOCK]], align 4
114// CHECK-NEXT: [[T1:%.*]] = bitcast void (i32, ...)* [[T0]] to [[BLOCK_T:%.*]]*
115// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[BLOCK_T]]* [[T1]], i32 0, i32 3
116// CHECK-NEXT: [[T3:%.*]] = bitcast [[BLOCK_T]]* [[T1]] to i8*
117// CHECK-NEXT: [[T4:%.*]] = load i8** [[T2]]
118// CHECK-NEXT: [[T5:%.*]] = bitcast i8* [[T4]] to void (i8*, i32, ...)*
119// CHECK-NEXT: call void (i8*, i32, ...)* [[T5]](i8* [[T3]], i32 0, i32 1, i32 2, i32 3)
120// CHECK-NEXT: ret void
121
122void test4(void (^block)()) {
123  block(0, 1, 2, 3);
124}
125// CHECK-LABEL:    define void @test4(
126// CHECK:      [[BLOCK:%.*]] = alloca void (...)*, align 4
127// CHECK-NEXT: store void (...)*
128// CHECK-NEXT: [[T0:%.*]] = load void (...)** [[BLOCK]], align 4
129// CHECK-NEXT: [[T1:%.*]] = bitcast void (...)* [[T0]] to [[BLOCK_T:%.*]]*
130// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[BLOCK_T]]* [[T1]], i32 0, i32 3
131// CHECK-NEXT: [[T3:%.*]] = bitcast [[BLOCK_T]]* [[T1]] to i8*
132// CHECK-NEXT: [[T4:%.*]] = load i8** [[T2]]
133// CHECK-NEXT: [[T5:%.*]] = bitcast i8* [[T4]] to void (i8*, i32, i32, i32, i32)*
134// CHECK-NEXT: call void [[T5]](i8* [[T3]], i32 0, i32 1, i32 2, i32 3)
135// CHECK-NEXT: ret void
136