1 | // RUN: %clang_cc1 -triple=x86_64-apple-darwin10 -emit-llvm -std=c++11 -fblocks -fobjc-arc -o - %s | FileCheck %s |
2 | |
3 | // CHECK: %[[STRUCT_BLOCK_DESCRIPTOR:.*]] = type { i64, i64 } |
4 | |
5 | // CHECK: %[[BLOCK_CAPTURED0:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, i32*, i32* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, i32*, i32* }>* %[[BLOCK:.*]], i32 0, i32 5 |
6 | // CHECK: %[[V0:.*]] = getelementptr inbounds %[[LAMBDA_CLASS:.*]], %[[LAMBDA_CLASS]]* %[[THIS:.*]], i32 0, i32 0 |
7 | // CHECK: %[[V1:.*]] = load i32*, i32** %[[V0]], align 8 |
8 | // CHECK: store i32* %[[V1]], i32** %[[BLOCK_CAPTURED0]], align 8 |
9 | // CHECK: %[[BLOCK_CAPTURED1:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, i32*, i32* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, i32*, i32* }>* %[[BLOCK]], i32 0, i32 6 |
10 | // CHECK: %[[V2:.*]] = getelementptr inbounds %[[LAMBDA_CLASS]], %[[LAMBDA_CLASS]]* %[[THIS]], i32 0, i32 1 |
11 | // CHECK: %[[V3:.*]] = load i32*, i32** %[[V2]], align 8 |
12 | // CHECK: store i32* %[[V3]], i32** %[[BLOCK_CAPTURED1]], align 8 |
13 | |
14 | void foo1(int &, int &); |
15 | |
16 | void block_in_lambda(int &s1, int &s2) { |
17 | auto lambda = [&s1, &s2]() { |
18 | auto block = ^{ |
19 | foo1(s1, s2); |
20 | }; |
21 | block(); |
22 | }; |
23 | |
24 | lambda(); |
25 | } |
26 | |
27 | namespace CaptureByReference { |
28 | |
29 | id getObj(); |
30 | void use(id); |
31 | |
32 | // Block copy/dispose helpers aren't needed because 'a' is captured by |
33 | // reference. |
34 | |
35 | // CHECK-LABEL: define void @_ZN18CaptureByReference5test0Ev( |
36 | // CHECK-LABEL: define internal void @"_ZZN18CaptureByReference5test0EvENK3$_1clEv"( |
37 | // CHECK: %[[BLOCK_DESCRIPTOR:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8** }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8** }>* %{{.*}}, i32 0, i32 4 |
38 | // CHECK: store %[[STRUCT_BLOCK_DESCRIPTOR]]* bitcast ({ i64, i64, i8*, i64 }* @"__block_descriptor_40_e5_v8\01?0ls32l8" to %[[STRUCT_BLOCK_DESCRIPTOR]]*), %[[STRUCT_BLOCK_DESCRIPTOR]]** %[[BLOCK_DESCRIPTOR]], align 8 |
39 | |
40 | void test0() { |
41 | id a = getObj(); |
42 | [&]{ ^{ a = 0; }(); }(); |
43 | } |
44 | |
45 | // Block copy/dispose helpers shouldn't have to retain/release 'a' because it |
46 | // is captured by reference. |
47 | |
48 | // CHECK-LABEL: define void @_ZN18CaptureByReference5test1Ev( |
49 | // CHECK-LABEL: define internal void @"_ZZN18CaptureByReference5test1EvENK3$_2clEv"( |
50 | // CHECK: %[[BLOCK_DESCRIPTOR:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>* %{{.*}}, i32 0, i32 4 |
51 | // CHECK: store %[[STRUCT_BLOCK_DESCRIPTOR]]* bitcast ({ i64, i64, i8*, i8*, i8*, i64 }* @"__block_descriptor_56_8_32s40s_e5_v8\01?0l" to %[[STRUCT_BLOCK_DESCRIPTOR]]*), %[[STRUCT_BLOCK_DESCRIPTOR]]** %[[BLOCK_DESCRIPTOR]], align 8 |
52 | |
53 | // CHECK-LABEL: define linkonce_odr hidden void @__copy_helper_block_8_32s40s( |
54 | // CHECK-NOT: call void @llvm.objc.storeStrong( |
55 | // CHECK: %[[V4:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>* %{{.*}}, i32 0, i32 5 |
56 | // CHECK: %[[V5:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>* %{{.*}}, i32 0, i32 5 |
57 | // CHECK: %[[BLOCKCOPY_SRC:.*]] = load i8*, i8** %[[V4]], align 8 |
58 | // CHECK: store i8* null, i8** %[[V5]], align 8 |
59 | // CHECK: call void @llvm.objc.storeStrong(i8** %[[V5]], i8* %[[BLOCKCOPY_SRC]]) |
60 | // CHECK: %[[V6:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>* %{{.*}}, i32 0, i32 6 |
61 | // CHECK: %[[V7:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>* %{{.*}}, i32 0, i32 6 |
62 | // CHECK: %[[BLOCKCOPY_SRC2:.*]] = load i8*, i8** %[[V6]], align 8 |
63 | // CHECK: store i8* null, i8** %[[V7]], align 8 |
64 | // CHECK: call void @llvm.objc.storeStrong(i8** %[[V7]], i8* %[[BLOCKCOPY_SRC2]]) |
65 | // CHECK-NOT: call void @llvm.objc.storeStrong( |
66 | // CHECK: ret void |
67 | |
68 | // CHECK-LABEL: define linkonce_odr hidden void @__destroy_helper_block_8_32s40s( |
69 | // CHECK: %[[V2:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>* %{{.*}}, i32 0, i32 5 |
70 | // CHECK: %[[V3:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>* %{{.*}}, i32 0, i32 6 |
71 | // CHECK-NOT: call void @llvm.objc.storeStrong( |
72 | // CHECK: call void @llvm.objc.storeStrong(i8** %[[V3]], i8* null) |
73 | // CHECK: call void @llvm.objc.storeStrong(i8** %[[V2]], i8* null) |
74 | // CHECK-NOT: call void @llvm.objc.storeStrong( |
75 | // CHECK: ret void |
76 | |
77 | void test1() { |
78 | id a = getObj(), b = getObj(), c = getObj(); |
79 | [&a, b, c]{ ^{ a = 0; use(b); use(c); }(); }(); |
80 | } |
81 | |
82 | } |
83 | |