| Akira Hatanaka | 673af7a | 2018-03-29 17:56:24 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck %s |
| 2 | |
| 3 | // CHECK: %[[STRUCT_TRIVIAL:.*]] = type { i32 } |
| 4 | // CHECK: %[[STRUCT_TRIVIALBIG:.*]] = type { [64 x i32] } |
| 5 | // CHECK: %[[STRUCT_STRONG:.*]] = type { i8* } |
| 6 | // CHECK: %[[STRUCT_WEAK:.*]] = type { i8* } |
| 7 | |
| 8 | typedef struct { |
| 9 | int x; |
| 10 | } Trivial; |
| 11 | |
| 12 | typedef struct { |
| 13 | int x[64]; |
| 14 | } TrivialBig; |
| 15 | |
| 16 | typedef struct { |
| 17 | id x; |
| 18 | } Strong; |
| 19 | |
| 20 | typedef struct { |
| 21 | __weak id x; |
| 22 | } Weak; |
| 23 | |
| 24 | // CHECK: define i32 @testTrivial() |
| 25 | // CHECK: %[[RETVAL:.*]] = alloca %[[STRUCT_TRIVIAL]], align 4 |
| 26 | // CHECK-NEXT: call void @func0(%[[STRUCT_TRIVIAL]]* %[[RETVAL]]) |
| 27 | // CHECK-NOT: memcpy |
| 28 | // CHECK: ret i32 % |
| 29 | |
| 30 | void func0(Trivial *); |
| 31 | |
| 32 | Trivial testTrivial(void) { |
| 33 | Trivial a; |
| 34 | func0(&a); |
| 35 | return a; |
| 36 | } |
| 37 | |
| 38 | void func1(TrivialBig *); |
| 39 | |
| 40 | // CHECK: define void @testTrivialBig(%[[STRUCT_TRIVIALBIG]]* noalias sret %[[AGG_RESULT:.*]]) |
| Akira Hatanaka | 673af7a | 2018-03-29 17:56:24 +0000 | [diff] [blame] | 41 | // CHECK: call void @func1(%[[STRUCT_TRIVIALBIG]]* %[[AGG_RESULT]]) |
| 42 | // CHECK-NEXT: ret void |
| 43 | |
| 44 | TrivialBig testTrivialBig(void) { |
| 45 | TrivialBig a; |
| 46 | func1(&a); |
| 47 | return a; |
| 48 | } |
| 49 | |
| 50 | // CHECK: define i8* @testStrong() |
| 51 | // CHECK: %[[RETVAL:.*]] = alloca %[[STRUCT_STRONG]], align 8 |
| 52 | // CHECK: %[[NRVO:.*]] = alloca i1, align 1 |
| 53 | // CHECK: %[[V0:.*]] = bitcast %[[STRUCT_STRONG]]* %[[RETVAL]] to i8** |
| 54 | // CHECK: call void @__default_constructor_8_s0(i8** %[[V0]]) |
| 55 | // CHECK: store i1 true, i1* %[[NRVO]], align 1 |
| 56 | // CHECK: %[[NRVO_VAL:.*]] = load i1, i1* %[[NRVO]], align 1 |
| 57 | // CHECK: br i1 %[[NRVO_VAL]], |
| 58 | |
| 59 | // CHECK: %[[V1:.*]] = bitcast %[[STRUCT_STRONG]]* %[[RETVAL]] to i8** |
| 60 | // CHECK: call void @__destructor_8_s0(i8** %[[V1]]) |
| 61 | // CHECK: br |
| 62 | |
| 63 | // CHECK: %[[COERCE_DIVE:.*]] = getelementptr inbounds %[[STRUCT_STRONG]], %[[STRUCT_STRONG]]* %[[RETVAL]], i32 0, i32 0 |
| 64 | // CHECK: %[[V2:.*]] = load i8*, i8** %[[COERCE_DIVE]], align 8 |
| 65 | // CHECK: ret i8* %[[V2]] |
| 66 | |
| 67 | Strong testStrong(void) { |
| 68 | Strong a; |
| 69 | return a; |
| 70 | } |
| 71 | |
| 72 | // CHECK: define void @testWeak(%[[STRUCT_WEAK]]* noalias sret %[[AGG_RESULT:.*]]) |
| 73 | // CHECK: %[[NRVO:.*]] = alloca i1, align 1 |
| 74 | // CHECK: %[[V0:.*]] = bitcast %[[STRUCT_WEAK]]* %[[AGG_RESULT]] to i8** |
| 75 | // CHECK: call void @__default_constructor_8_w0(i8** %[[V0]]) |
| 76 | // CHECK: store i1 true, i1* %[[NRVO]], align 1 |
| 77 | // CHECK: %[[NRVO_VAL:.*]] = load i1, i1* %[[NRVO]], align 1 |
| 78 | // CHECK: br i1 %[[NRVO_VAL]], |
| 79 | |
| 80 | // CHECK: %[[V1:.*]] = bitcast %[[STRUCT_WEAK]]* %[[AGG_RESULT]] to i8** |
| 81 | // CHECK: call void @__destructor_8_w0(i8** %[[V1]]) |
| 82 | // CHECK: br |
| 83 | |
| 84 | // CHECK-NOT: call |
| 85 | // CHECK: ret void |
| 86 | |
| 87 | Weak testWeak(void) { |
| 88 | Weak a; |
| 89 | return a; |
| 90 | } |
| 91 | |
| 92 | // CHECK: define void @testWeak2( |
| 93 | // CHECK: call void @__default_constructor_8_w0( |
| 94 | // CHECK: call void @__default_constructor_8_w0( |
| 95 | // CHECK: call void @__copy_constructor_8_8_w0( |
| 96 | // CHECK: call void @__copy_constructor_8_8_w0( |
| 97 | // CHECK: call void @__destructor_8_w0( |
| 98 | // CHECK: call void @__destructor_8_w0( |
| 99 | |
| 100 | Weak testWeak2(int c) { |
| 101 | Weak a, b; |
| 102 | if (c) |
| 103 | return a; |
| 104 | else |
| 105 | return b; |
| 106 | } |
| 107 | |
| 108 | // CHECK: define internal void @"\01-[C1 foo1]"(%[[STRUCT_WEAK]]* noalias sret %[[AGG_RESULT:.*]], %{{.*}}* %{{.*}}, i8* %{{.*}}) |
| 109 | // CHECK: %[[NRVO:.*]] = alloca i1, align 1 |
| 110 | // CHECK: %[[V0:.*]] = bitcast %[[STRUCT_WEAK]]* %[[AGG_RESULT]] to i8** |
| 111 | // CHECK: call void @__default_constructor_8_w0(i8** %[[V0]]) |
| 112 | // CHECK: store i1 true, i1* %[[NRVO]], align 1 |
| 113 | // CHECK: %[[NRVO_VAL:.*]] = load i1, i1* %[[NRVO]], align 1 |
| 114 | // CHECK: br i1 %[[NRVO_VAL]], |
| 115 | |
| 116 | // CHECK: %[[V1:.*]] = bitcast %[[STRUCT_WEAK]]* %[[AGG_RESULT]] to i8** |
| 117 | // CHECK: call void @__destructor_8_w0(i8** %[[V1]]) |
| 118 | // CHECK: br |
| 119 | |
| 120 | // CHECK-NOT: call |
| 121 | // CHECK: ret void |
| 122 | |
| 123 | __attribute__((objc_root_class)) |
| 124 | @interface C1 |
| 125 | - (Weak)foo1; |
| 126 | @end |
| 127 | |
| 128 | @implementation C1 |
| 129 | - (Weak)foo1 { |
| 130 | Weak a; |
| 131 | return a; |
| 132 | } |
| 133 | @end |