File: weak-in-c-struct.m

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites:
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (212 lines) | stat: -rw-r--r-- 10,062 bytes parent folder | download | duplicates (3) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
 
// RUN: %clang_cc1 -triple arm64-apple-ios11 -fobjc-arc -fblocks -fobjc-runtime=ios-11.0 -emit-llvm -o - %s | FileCheck -check-prefix=ARM64 -check-prefix=COMMON %s
// RUN: %clang_cc1 -triple thumbv7-apple-ios10 -fobjc-arc -fblocks -fobjc-runtime=ios-10.0 -emit-llvm -o - %s | FileCheck -check-prefix=COMMON %s
// RUN: %clang_cc1 -triple x86_64-apple-macosx10.13 -fobjc-arc -fblocks -fobjc-runtime=macosx-10.13.0 -emit-llvm -o - %s | FileCheck -check-prefix=COMMON %s
// RUN: %clang_cc1 -triple i386-apple-macosx10.13.0 -fobjc-arc -fblocks -fobjc-runtime=macosx-fragile-10.13.0 -emit-llvm -o - %s | FileCheck -check-prefix=COMMON %s

typedef void (^BlockTy)(void);

// COMMON: %[[STRUCT_WEAK:.*]] = type { i32, i8* }

typedef struct {
  int f0;
  __weak id f1;
} Weak;

Weak getWeak(void);
void calleeWeak(Weak);

// ARM64: define{{.*}} void @test_constructor_destructor_Weak()
// ARM64: %[[T:.*]] = alloca %[[STRUCT_WEAK]], align 8
// ARM64: %[[V0:.*]] = bitcast %[[STRUCT_WEAK]]* %[[T]] to i8**
// ARM64: call void @__default_constructor_8_w8(i8** %[[V0]])
// ARM64: %[[V1:.*]] = bitcast %[[STRUCT_WEAK]]* %[[T]] to i8**
// ARM64: call void @__destructor_8_w8(i8** %[[V1]])
// ARM64: ret void

// ARM64: define linkonce_odr hidden void @__default_constructor_8_w8(i8** %[[DST:.*]])
// ARM64: %[[DST_ADDR:.*]] = alloca i8**, align 8
// ARM64: store i8** %[[DST]], i8*** %[[DST_ADDR]], align 8
// ARM64: %[[V0:.*]] = load i8**, i8*** %[[DST_ADDR]], align 8
// ARM64: %[[V1]] = bitcast i8** %[[V0]] to i8*
// ARM64: %[[V2:.*]] = getelementptr inbounds i8, i8* %[[V1]], i64 8
// ARM64: %[[V3:.*]] = bitcast i8* %[[V2]] to i8**
// ARM64: %[[V4:.*]] = bitcast i8** %[[V3]] to i8*
// ARM64: call void @llvm.memset.p0i8.i64(i8* align 8 %[[V4]], i8 0, i64 8, i1 false)

// ARM64: define linkonce_odr hidden void @__destructor_8_w8(i8** %[[DST:.*]])
// ARM64: %[[DST_ADDR:.*]] = alloca i8**, align 8
// ARM64: store i8** %[[DST]], i8*** %[[DST_ADDR]], align 8
// ARM64: %[[V0:.*]] = load i8**, i8*** %[[DST_ADDR]], align 8
// ARM64: %[[V1:.*]] = bitcast i8** %[[V0]] to i8*
// ARM64: %[[V2:.*]] = getelementptr inbounds i8, i8* %[[V1]], i64 8
// ARM64: %[[V3:.*]] = bitcast i8* %[[V2]] to i8**
// ARM64: call void @llvm.objc.destroyWeak(i8** %[[V3]])

@interface C
- (void)m:(Weak)a;
@end

void test_constructor_destructor_Weak(void) {
  Weak t;
}

// ARM64: define{{.*}} void @test_copy_constructor_Weak(%[[STRUCT_WEAK]]* %{{.*}})
// ARM64: call void @__copy_constructor_8_8_t0w4_w8(i8** %{{.*}}, i8** %{{.*}})
// ARM64: call void @__destructor_8_w8(i8** %{{.*}})

// ARM64: define linkonce_odr hidden void @__copy_constructor_8_8_t0w4_w8(i8** %[[DST:.*]], i8** %[[SRC:.*]])
// ARM64: %[[DST_ADDR:.*]] = alloca i8**, align 8
// ARM64: %[[SRC_ADDR:.*]] = alloca i8**, align 8
// ARM64: store i8** %[[DST]], i8*** %[[DST_ADDR]], align 8
// ARM64: store i8** %[[SRC]], i8*** %[[SRC_ADDR]], align 8
// ARM64: %[[V0:.*]] = load i8**, i8*** %[[DST_ADDR]], align 8
// ARM64: %[[V1:.*]] = load i8**, i8*** %[[SRC_ADDR]], align 8
// ARM64: %[[V2:.*]] = bitcast i8** %[[V0]] to i32*
// ARM64: %[[V3:.*]] = bitcast i8** %[[V1]] to i32*
// ARM64: %[[V4:.*]] = load i32, i32* %[[V3]], align 8
// ARM64: store i32 %[[V4]], i32* %[[V2]], align 8
// ARM64: %[[V5:.*]] = bitcast i8** %[[V0]] to i8*
// ARM64: %[[V6:.*]] = getelementptr inbounds i8, i8* %[[V5]], i64 8
// ARM64: %[[V7:.*]] = bitcast i8* %[[V6]] to i8**
// ARM64: %[[V8:.*]] = bitcast i8** %[[V1]] to i8*
// ARM64: %[[V9:.*]] = getelementptr inbounds i8, i8* %[[V8]], i64 8
// ARM64: %[[V10:.*]] = bitcast i8* %[[V9]] to i8**
// ARM64: call void @llvm.objc.copyWeak(i8** %[[V7]], i8** %[[V10]])

void test_copy_constructor_Weak(Weak *s) {
  Weak t = *s;
}

// ARM64: define{{.*}} void @test_copy_assignment_Weak(%[[STRUCT_WEAK]]* %{{.*}}, %[[STRUCT_WEAK]]* %{{.*}})
// ARM64: call void @__copy_assignment_8_8_t0w4_w8(i8** %{{.*}}, i8** %{{.*}})

// ARM64: define linkonce_odr hidden void @__copy_assignment_8_8_t0w4_w8(i8** %[[DST:.*]], i8** %[[SRC:.*]])
// ARM64: %[[DST_ADDR:.*]] = alloca i8**, align 8
// ARM64: %[[SRC_ADDR:.*]] = alloca i8**, align 8
// ARM64: store i8** %[[DST]], i8*** %[[DST_ADDR]], align 8
// ARM64: store i8** %[[SRC]], i8*** %[[SRC_ADDR]], align 8
// ARM64: %[[V0:.*]] = load i8**, i8*** %[[DST_ADDR]], align 8
// ARM64: %[[V1:.*]] = load i8**, i8*** %[[SRC_ADDR]], align 8
// ARM64: %[[V2:.*]] = bitcast i8** %[[V0]] to i32*
// ARM64: %[[V3:.*]] = bitcast i8** %[[V1]] to i32*
// ARM64: %[[V4:.*]] = load i32, i32* %[[V3]], align 8
// ARM64: store i32 %[[V4]], i32* %[[V2]], align 8
// ARM64: %[[V5:.*]] = bitcast i8** %[[V0]] to i8*
// ARM64: %[[V6:.*]] = getelementptr inbounds i8, i8* %[[V5]], i64 8
// ARM64: %[[V7:.*]] = bitcast i8* %[[V6]] to i8**
// ARM64: %[[V8:.*]] = bitcast i8** %[[V1]] to i8*
// ARM64: %[[V9:.*]] = getelementptr inbounds i8, i8* %[[V8]], i64 8
// ARM64: %[[V10:.*]] = bitcast i8* %[[V9]] to i8**
// ARM64: %[[V11:.*]] = call i8* @llvm.objc.loadWeakRetained(i8** %[[V10]])
// ARM64: %[[V12:.*]] = call i8* @llvm.objc.storeWeak(i8** %[[V7]], i8* %[[V11]])
// ARM64: call void @llvm.objc.release(i8* %[[V11]])

void test_copy_assignment_Weak(Weak *d, Weak *s) {
  *d = *s;
}

// ARM64: define internal void @__Block_byref_object_copy_(i8* %0, i8* %1)
// ARM64: call void @__move_constructor_8_8_t0w4_w8(i8** %{{.*}}, i8** %{{.*}})

// ARM64: define linkonce_odr hidden void @__move_constructor_8_8_t0w4_w8(i8** %[[DST:.*]], i8** %[[SRC:.*]])
// ARM64: %[[DST_ADDR:.*]] = alloca i8**, align 8
// ARM64: %[[SRC_ADDR:.*]] = alloca i8**, align 8
// ARM64: store i8** %[[DST]], i8*** %[[DST_ADDR]], align 8
// ARM64: store i8** %[[SRC]], i8*** %[[SRC_ADDR]], align 8
// ARM64: %[[V0:.*]] = load i8**, i8*** %[[DST_ADDR]], align 8
// ARM64: %[[V1:.*]] = load i8**, i8*** %[[SRC_ADDR]], align 8
// ARM64: %[[V2:.*]] = bitcast i8** %[[V0]] to i32*
// ARM64: %[[V3:.*]] = bitcast i8** %[[V1]] to i32*
// ARM64: %[[V4:.*]] = load i32, i32* %[[V3]], align 8
// ARM64: store i32 %[[V4]], i32* %[[V2]], align 8
// ARM64: %[[V5:.*]] = bitcast i8** %[[V0]] to i8*
// ARM64: %[[V6:.*]] = getelementptr inbounds i8, i8* %[[V5]], i64 8
// ARM64: %[[V7:.*]] = bitcast i8* %[[V6]] to i8**
// ARM64: %[[V8:.*]] = bitcast i8** %[[V1]] to i8*
// ARM64: %[[V9:.*]] = getelementptr inbounds i8, i8* %[[V8]], i64 8
// ARM64: %[[V10:.*]] = bitcast i8* %[[V9]] to i8**
// ARM64: call void @llvm.objc.moveWeak(i8** %[[V7]], i8** %[[V10]])

void test_move_constructor_Weak(void) {
  __block Weak t;
  BlockTy b = ^{ (void)t; };
}

// ARM64: define{{.*}} void @test_move_assignment_Weak(%[[STRUCT_WEAK]]* %{{.*}})
// ARM64: call void @__move_assignment_8_8_t0w4_w8(i8** %{{.*}}, i8** %{{.*}})

// ARM64: define linkonce_odr hidden void @__move_assignment_8_8_t0w4_w8(i8** %[[DST:.*]], i8** %[[SRC:.*]])
// ARM64: %[[DST_ADDR:.*]] = alloca i8**, align 8
// ARM64: %[[SRC_ADDR:.*]] = alloca i8**, align 8
// ARM64: store i8** %[[DST]], i8*** %[[DST_ADDR]], align 8
// ARM64: store i8** %[[SRC]], i8*** %[[SRC_ADDR]], align 8
// ARM64: %[[V0:.*]] = load i8**, i8*** %[[DST_ADDR]], align 8
// ARM64: %[[V1:.*]] = load i8**, i8*** %[[SRC_ADDR]], align 8
// ARM64: %[[V2:.*]] = bitcast i8** %[[V0]] to i32*
// ARM64: %[[V3:.*]] = bitcast i8** %[[V1]] to i32*
// ARM64: %[[V4:.*]] = load i32, i32* %[[V3]], align 8
// ARM64: store i32 %[[V4]], i32* %[[V2]], align 8
// ARM64: %[[V5:.*]] = bitcast i8** %[[V0]] to i8*
// ARM64: %[[V6:.*]] = getelementptr inbounds i8, i8* %[[V5]], i64 8
// ARM64: %[[V7:.*]] = bitcast i8* %[[V6]] to i8**
// ARM64: %[[V8:.*]] = bitcast i8** %[[V1]] to i8*
// ARM64: %[[V9:.*]] = getelementptr inbounds i8, i8* %[[V8]], i64 8
// ARM64: %[[V10:.*]] = bitcast i8* %[[V9]] to i8**
// ARM64: %[[V11:.*]] = call i8* @llvm.objc.loadWeakRetained(i8** %[[V10]])
// ARM64: %[[V12:.*]] = call i8* @llvm.objc.storeWeak(i8** %[[V7]], i8* %[[V11]])
// ARM64: call void @llvm.objc.destroyWeak(i8** %[[V10]])
// ARM64: call void @llvm.objc.release(i8* %[[V11]])

void test_move_assignment_Weak(Weak *p) {
  *p = getWeak();
}

// COMMON: define{{.*}} void @test_parameter_Weak(%[[STRUCT_WEAK]]* %[[A:.*]])
// COMMON: %[[V0:.*]] = bitcast %[[STRUCT_WEAK]]* %[[A]] to i8**
// COMMON: call void @__destructor_{{.*}}(i8** %[[V0]])

void test_parameter_Weak(Weak a) {
}

// COMMON: define{{.*}} void @test_argument_Weak(%[[STRUCT_WEAK]]* %[[A:.*]])
// COMMON: %[[A_ADDR:.*]] = alloca %[[STRUCT_WEAK]]*
// COMMON: %[[AGG_TMP:.*]] = alloca %[[STRUCT_WEAK]]
// COMMON: store %[[STRUCT_WEAK]]* %[[A]], %[[STRUCT_WEAK]]** %[[A_ADDR]]
// COMMON: %[[V0:.*]] = load %[[STRUCT_WEAK]]*, %[[STRUCT_WEAK]]** %[[A_ADDR]]
// COMMON: %[[V1:.*]] = bitcast %[[STRUCT_WEAK]]* %[[AGG_TMP]] to i8**
// COMMON: %[[V2:.*]] = bitcast %[[STRUCT_WEAK]]* %[[V0]] to i8**
// COMMON: call void @__copy_constructor_{{.*}}(i8** %[[V1]], i8** %[[V2]])
// COMMON: call void @calleeWeak(%[[STRUCT_WEAK]]* %[[AGG_TMP]])
// COMMON-NEXT: ret

void test_argument_Weak(Weak *a) {
  calleeWeak(*a);
}

// COMMON: define{{.*}} void @test_return_Weak(%[[STRUCT_WEAK]]* noalias sret(%[[STRUCT_WEAK]]) align {{.*}} %[[AGG_RESULT:.*]], %[[STRUCT_WEAK]]* %[[A:.*]])
// COMMON: %[[A_ADDR:.*]] = alloca %[[STRUCT_WEAK]]*
// COMMON: store %[[STRUCT_WEAK]]* %[[A]], %[[STRUCT_WEAK]]** %[[A_ADDR]]
// COMMON: %[[V0:.*]] = load %[[STRUCT_WEAK]]*, %[[STRUCT_WEAK]]** %[[A_ADDR]]
// COMMON: %[[V1:.*]] = bitcast %[[STRUCT_WEAK]]* %[[AGG_RESULT]] to i8**
// COMMON: %[[V2:.*]] = bitcast %[[STRUCT_WEAK]]* %[[V0]] to i8**
// COMMON: call void @__copy_constructor_{{.*}}(i8** %[[V1]], i8** %[[V2]])
// COMMON: ret void

Weak test_return_Weak(Weak *a) {
  return *a;
}

// COMMON-LABEL: define{{.*}} void @test_null_receiver(
// COMMON: %[[AGG_TMP:.*]] = alloca %[[STRUCT_WEAK]]
// COMMON: br i1

// COMMON: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, %[[STRUCT_WEAK]]*)*)({{.*}}, %[[STRUCT_WEAK]]* %[[AGG_TMP]])
// COMMON: br

// COMMON: %[[V6:.*]] = bitcast %[[STRUCT_WEAK]]* %[[AGG_TMP]] to i8**
// COMMON: call void @__destructor_{{.*}}(i8** %[[V6]])
// COMMON: br

void test_null_receiver(C *c) {
  [c m:getWeak()];
}