| // RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o - -fblocks | FileCheck %s |
| |
| // CHECK: %[[STRUCT_BLOCK_DESCRIPTOR:.*]] = type { i32, i32 } |
| |
| // 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 |
| // 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 |
| |
| void (^f)(void) = ^{}; |
| |
| // rdar://6768379 |
| int f0(int (^a0)()) { |
| return a0(1, 2, 3); |
| } |
| |
| // Verify that attributes on blocks are set correctly. |
| typedef struct s0 T; |
| struct s0 { |
| int a[64]; |
| }; |
| |
| // CHECK: define internal void @__f2_block_invoke(%struct.s0* noalias sret {{%.*}}, i8* {{%.*}}, %struct.s0* byval(%struct.s0) align 4 {{.*}}) |
| struct s0 f2(struct s0 a0) { |
| return ^(struct s0 a1){ return a1; }(a0); |
| } |
| |
| // This should not crash: rdar://6808051 |
| void *P = ^{ |
| void *Q = __func__; |
| }; |
| |
| void (^test1)(void) = ^(void) { |
| __block int i; |
| ^ { i = 1; }(); |
| }; |
| |
| // CHECK-LABEL: define linkonce_odr hidden void @__copy_helper_block_4_20r(i8* %0, i8* %1) unnamed_addr |
| // CHECK: %[[_ADDR:.*]] = alloca i8*, align 4 |
| // CHECK-NEXT: %[[_ADDR1:.*]] = alloca i8*, align 4 |
| // CHECK-NEXT: store i8* %0, i8** %[[_ADDR]], align 4 |
| // CHECK-NEXT: store i8* %1, i8** %[[_ADDR1]], align 4 |
| // CHECK-NEXT: %[[V2:.*]] = load i8*, i8** %[[_ADDR1]], align 4 |
| // CHECK-NEXT: %[[BLOCK_SOURCE:.*]] = bitcast i8* %[[V2]] to <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>* |
| // CHECK-NEXT: %[[V3:.*]] = load i8*, i8** %[[_ADDR]], align 4 |
| // CHECK-NEXT: %[[BLOCK_DEST:.*]] = bitcast i8* %[[V3]] to <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>* |
| // 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 |
| // 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 |
| // CHECK-NEXT: %[[BLOCKCOPY_SRC:.*]] = load i8*, i8** %[[V4]], align 4 |
| // CHECK-NEXT: %[[V6:.*]] = bitcast i8** %[[V5]] to i8* |
| // CHECK-NEXT: call void @_Block_object_assign(i8* %[[V6]], i8* %[[BLOCKCOPY_SRC]], i32 8) |
| // CHECK-NEXT: ret void |
| |
| // CHECK-LABEL: define linkonce_odr hidden void @__destroy_helper_block_4_20r(i8* %0) unnamed_addr |
| // CHECK: %[[_ADDR:.*]] = alloca i8*, align 4 |
| // CHECK-NEXT: store i8* %0, i8** %[[_ADDR]], align 4 |
| // CHECK-NEXT: %[[V1:.*]] = load i8*, i8** %[[_ADDR]], align 4 |
| // CHECK-NEXT: %[[BLOCK:.*]] = bitcast i8* %[[V1]] to <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>* |
| // 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 |
| // CHECK-NEXT: %[[V3:.*]] = load i8*, i8** %[[V2]], align 4 |
| // CHECK-NEXT: call void @_Block_object_dispose(i8* %[[V3]], i32 8) |
| // CHECK-NEXT: ret void |
| |
| typedef double ftype(double); |
| // It's not clear that we *should* support this syntax, but until that decision |
| // is made, we should support it properly and not crash. |
| ftype ^test2 = ^ftype { |
| return 0; |
| }; |
| |
| // rdar://problem/8605032 |
| void f3_helper(void (^)(void)); |
| void f3() { |
| _Bool b = 0; |
| f3_helper(^{ if (b) {} }); |
| } |
| |
| // rdar://problem/11322251 |
| // The bool can fill in between the header and the long long. |
| // Add the appropriate amount of padding between them. |
| void f4_helper(long long (^)(void)); |
| // CHECK-LABEL: define void @f4() |
| void f4(void) { |
| _Bool b = 0; |
| long long ll = 0; |
| // CHECK: alloca <{ i8*, i32, i32, i8*, {{%.*}}*, i8, [3 x i8], i64 }>, align 8 |
| f4_helper(^{ if (b) return ll; return 0LL; }); |
| } |
| |
| // rdar://problem/11354538 |
| // The alignment after rounding up to the align of F5 is actually |
| // greater than the required alignment. Don't assert. |
| struct F5 { |
| char buffer[32] __attribute((aligned)); |
| }; |
| void f5_helper(void (^)(struct F5 *)); |
| // CHECK-LABEL: define void @f5() |
| void f5(void) { |
| struct F5 value; |
| // CHECK: alloca <{ i8*, i32, i32, i8*, {{%.*}}*, [12 x i8], [[F5:%.*]] }>, align 16 |
| f5_helper(^(struct F5 *slot) { *slot = value; }); |
| } |
| |
| // rdar://14085217 |
| void (^b)() = ^{}; |
| int main() { |
| (b?: ^{})(); |
| } |
| // CHECK: [[ZERO:%.*]] = load void (...)*, void (...)** @b |
| // CHECK-NEXT: [[TB:%.*]] = icmp ne void (...)* [[ZERO]], null |
| // CHECK-NEXT: br i1 [[TB]], label [[CT:%.*]], label [[CF:%.*]] |
| // CHECK: [[ONE:%.*]] = bitcast void (...)* [[ZERO]] to void ()* |
| // CHECK-NEXT: br label [[CE:%.*]] |
| |
| // Ensure that we don't emit helper code in copy/dispose routines for variables |
| // that are const-captured. |
| void testConstCaptureInCopyAndDestroyHelpers() { |
| const int x = 0; |
| __block int i; |
| (^ { i = x; })(); |
| } |
| // CHECK-LABEL: define void @testConstCaptureInCopyAndDestroyHelpers( |
| // 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 |
| // 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 |
| |
| // CHECK-LABEL: define internal void @__testConstCaptureInCopyAndDestroyHelpers_block_invoke |