| 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 | |