1 | // RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o - -fblocks | FileCheck %s |
2 | |
3 | // CHECK: %[[STRUCT_BLOCK_DESCRIPTOR:.*]] = type { i32, i32 } |
4 | |
5 | // CHECK: @{{.*}} = internal constant { i32, i32, i8*, i8*, i8*, i8* } { i32 0, i32 24, i8* bitcast (void (i8*, i8*)* @__copy_helper_block_4_20r to i8*), i8* bitcast (void (i8*)* @__destroy_helper_block_4_20r to i8*), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @{{.*}}, i32 0, i32 0), i8* null }, align 4 |
6 | // CHECK: @[[BLOCK_DESCRIPTOR_TMP21:.*]] = internal constant { i32, i32, i8*, i8*, i8*, i8* } { i32 0, i32 24, i8* bitcast (void (i8*, i8*)* @__copy_helper_block_4_20r to i8*), i8* bitcast (void (i8*)* @__destroy_helper_block_4_20r to i8*), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @{{.*}}, i32 0, i32 0), i8* null }, align 4 |
7 | |
8 | void (^f)(void) = ^{}; |
9 | |
10 | // rdar://6768379 |
11 | int f0(int (^a0)()) { |
12 | return a0(1, 2, 3); |
13 | } |
14 | |
15 | // Verify that attributes on blocks are set correctly. |
16 | typedef struct s0 T; |
17 | struct s0 { |
18 | int a[64]; |
19 | }; |
20 | |
21 | // CHECK: define internal void @__f2_block_invoke(%struct.s0* noalias sret {{%.*}}, i8* {{%.*}}, %struct.s0* byval align 4 {{.*}}) |
22 | struct s0 f2(struct s0 a0) { |
23 | return ^(struct s0 a1){ return a1; }(a0); |
24 | } |
25 | |
26 | // This should not crash: rdar://6808051 |
27 | void *P = ^{ |
28 | void *Q = __func__; |
29 | }; |
30 | |
31 | void (^test1)(void) = ^(void) { |
32 | __block int i; |
33 | ^ { i = 1; }(); |
34 | }; |
35 | |
36 | // CHECK-LABEL: define linkonce_odr hidden void @__copy_helper_block_4_20r(i8*, i8*) unnamed_addr |
37 | // CHECK: %[[_ADDR:.*]] = alloca i8*, align 4 |
38 | // CHECK-NEXT: %[[_ADDR1:.*]] = alloca i8*, align 4 |
39 | // CHECK-NEXT: store i8* %0, i8** %[[_ADDR]], align 4 |
40 | // CHECK-NEXT: store i8* %1, i8** %[[_ADDR1]], align 4 |
41 | // CHECK-NEXT: %[[V2:.*]] = load i8*, i8** %[[_ADDR1]], align 4 |
42 | // CHECK-NEXT: %[[BLOCK_SOURCE:.*]] = bitcast i8* %[[V2]] to <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>* |
43 | // CHECK-NEXT: %[[V3:.*]] = load i8*, i8** %[[_ADDR]], align 4 |
44 | // CHECK-NEXT: %[[BLOCK_DEST:.*]] = bitcast i8* %[[V3]] to <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>* |
45 | // CHECK-NEXT: %[[V4:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>* %[[BLOCK_SOURCE]], i32 0, i32 5 |
46 | // CHECK-NEXT: %[[V5:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>* %[[BLOCK_DEST]], i32 0, i32 5 |
47 | // CHECK-NEXT: %[[BLOCKCOPY_SRC:.*]] = load i8*, i8** %[[V4]], align 4 |
48 | // CHECK-NEXT: %[[V6:.*]] = bitcast i8** %[[V5]] to i8* |
49 | // CHECK-NEXT: call void @_Block_object_assign(i8* %[[V6]], i8* %[[BLOCKCOPY_SRC]], i32 8) |
50 | // CHECK-NEXT: ret void |
51 | |
52 | // CHECK-LABEL: define linkonce_odr hidden void @__destroy_helper_block_4_20r(i8*) unnamed_addr |
53 | // CHECK: %[[_ADDR:.*]] = alloca i8*, align 4 |
54 | // CHECK-NEXT: store i8* %0, i8** %[[_ADDR]], align 4 |
55 | // CHECK-NEXT: %[[V1:.*]] = load i8*, i8** %[[_ADDR]], align 4 |
56 | // CHECK-NEXT: %[[BLOCK:.*]] = bitcast i8* %[[V1]] to <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>* |
57 | // CHECK-NEXT: %[[V2:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>* %[[BLOCK]], i32 0, i32 5 |
58 | // CHECK-NEXT: %[[V3:.*]] = load i8*, i8** %[[V2]], align 4 |
59 | // CHECK-NEXT: call void @_Block_object_dispose(i8* %[[V3]], i32 8) |
60 | // CHECK-NEXT: ret void |
61 | |
62 | typedef double ftype(double); |
63 | // It's not clear that we *should* support this syntax, but until that decision |
64 | // is made, we should support it properly and not crash. |
65 | ftype ^test2 = ^ftype { |
66 | return 0; |
67 | }; |
68 | |
69 | // rdar://problem/8605032 |
70 | void f3_helper(void (^)(void)); |
71 | void f3() { |
72 | _Bool b = 0; |
73 | f3_helper(^{ if (b) {} }); |
74 | } |
75 | |
76 | // rdar://problem/11322251 |
77 | // The bool can fill in between the header and the long long. |
78 | // Add the appropriate amount of padding between them. |
79 | void f4_helper(long long (^)(void)); |
80 | // CHECK-LABEL: define void @f4() |
81 | void f4(void) { |
82 | _Bool b = 0; |
83 | long long ll = 0; |
84 | // CHECK: alloca <{ i8*, i32, i32, i8*, {{%.*}}*, i8, [3 x i8], i64 }>, align 8 |
85 | f4_helper(^{ if (b) return ll; return 0LL; }); |
86 | } |
87 | |
88 | // rdar://problem/11354538 |
89 | // The alignment after rounding up to the align of F5 is actually |
90 | // greater than the required alignment. Don't assert. |
91 | struct F5 { |
92 | char buffer[32] __attribute((aligned)); |
93 | }; |
94 | void f5_helper(void (^)(struct F5 *)); |
95 | // CHECK-LABEL: define void @f5() |
96 | void f5(void) { |
97 | struct F5 value; |
98 | // CHECK: alloca <{ i8*, i32, i32, i8*, {{%.*}}*, [12 x i8], [[F5:%.*]] }>, align 16 |
99 | f5_helper(^(struct F5 *slot) { *slot = value; }); |
100 | } |
101 | |
102 | // rdar://14085217 |
103 | void (^b)() = ^{}; |
104 | int main() { |
105 | (b?: ^{})(); |
106 | } |
107 | // CHECK: [[ZERO:%.*]] = load void (...)*, void (...)** @b |
108 | // CHECK-NEXT: [[TB:%.*]] = icmp ne void (...)* [[ZERO]], null |
109 | // CHECK-NEXT: br i1 [[TB]], label [[CT:%.*]], label [[CF:%.*]] |
110 | // CHECK: [[ONE:%.*]] = bitcast void (...)* [[ZERO]] to void ()* |
111 | // CHECK-NEXT: br label [[CE:%.*]] |
112 | |
113 | // Ensure that we don't emit helper code in copy/dispose routines for variables |
114 | // that are const-captured. |
115 | void testConstCaptureInCopyAndDestroyHelpers() { |
116 | const int x = 0; |
117 | __block int i; |
118 | (^ { i = x; })(); |
119 | } |
120 | // CHECK-LABEL: define void @testConstCaptureInCopyAndDestroyHelpers( |
121 | // CHECK: %[[BLOCK_DESCRIPTOR:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>* %{{.*}}, i32 0, i32 4 |
122 | // CHECK: store %[[STRUCT_BLOCK_DESCRIPTOR]]* bitcast ({ i32, i32, i8*, i8*, i8*, i8* }* @[[BLOCK_DESCRIPTOR_TMP21]] to %[[STRUCT_BLOCK_DESCRIPTOR]]*), %[[STRUCT_BLOCK_DESCRIPTOR]]** %[[BLOCK_DESCRIPTOR]], align 4 |
123 | |
124 | // CHECK-LABEL: define internal void @__testConstCaptureInCopyAndDestroyHelpers_block_invoke |
125 | |