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comparison clang/test/CodeGenObjC/arc-foreach.m @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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children 2e18cbf3894f
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147:c2174574ed3a 150:1d019706d866
1 // RUN: %clang_cc1 -triple x86_64-apple-darwin -fblocks -fobjc-arc -fobjc-runtime-has-weak -emit-llvm %s -o - | FileCheck -check-prefix CHECK-LP64 %s
2 // RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 -fblocks -fobjc-arc -fobjc-runtime-has-weak -emit-llvm %s -o - | FileCheck -check-prefix CHECK-LP64-OPT %s
3 // rdar://9503326
4 // rdar://9606600
5
6 extern void use(id);
7 extern void use_block(void (^)(void));
8
9 struct NSFastEnumerationState;
10 @interface NSArray
11 - (unsigned long) countByEnumeratingWithState: (struct NSFastEnumerationState*) state
12 objects: (id*) buffer
13 count: (unsigned long) bufferSize;
14 @end;
15
16 void test0(NSArray *array) {
17 // 'x' should be initialized without a retain.
18 // We should actually do a non-constant capture, and that
19 // capture should require a retain.
20 for (id x in array) {
21 use_block(^{ use(x); });
22 }
23 }
24
25 // CHECK-LP64-LABEL: define void @test0(
26 // CHECK-LP64: [[ARRAY:%.*]] = alloca [[ARRAY_T:%.*]]*,
27 // CHECK-LP64-NEXT: [[X:%.*]] = alloca i8*,
28 // CHECK-LP64-NEXT: [[STATE:%.*]] = alloca [[STATE_T:%.*]],
29 // CHECK-LP64-NEXT: [[BUFFER:%.*]] = alloca [16 x i8*], align 8
30 // CHECK-LP64-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
31
32 // CHECK-LP64-OPT-LABEL: define void @test0
33 // CHECK-LP64-OPT: [[STATE:%.*]] = alloca [[STATE_T:%.*]], align 8
34 // CHECK-LP64-OPT-NEXT: [[BUFFER:%.*]] = alloca [16 x i8*], align 8
35 // CHECK-LP64-OPT-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]], align 8
36
37 // Initialize 'array'.
38 // CHECK-LP64-NEXT: store [[ARRAY_T]]* null, [[ARRAY_T]]** [[ARRAY]]
39 // CHECK-LP64-NEXT: [[ZERO:%.*]] = bitcast [[ARRAY_T]]** [[ARRAY]] to i8**
40 // CHECK-LP64-NEXT: [[ONE:%.*]] = bitcast [[ARRAY_T]]* {{%.*}} to i8*
41 // CHECK-LP64-NEXT: call void @llvm.objc.storeStrong(i8** [[ZERO]], i8* [[ONE]]) [[NUW:#[0-9]+]]
42
43 // Initialize the fast enumaration state.
44 // CHECK-LP64-NEXT: [[T0:%.*]] = bitcast [[STATE_T]]* [[STATE]] to i8*
45 // CHECK-LP64-NEXT: call void @llvm.memset.p0i8.i64(i8* align 8 [[T0]], i8 0, i64 64, i1 false)
46
47 // Evaluate the collection expression and retain.
48 // CHECK-LP64-NEXT: [[T0:%.*]] = load [[ARRAY_T]]*, [[ARRAY_T]]** [[ARRAY]], align 8
49 // CHECK-LP64-NEXT: [[T1:%.*]] = bitcast [[ARRAY_T]]* [[T0]] to i8*
50 // CHECK-LP64-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]])
51 // CHECK-LP64-NEXT: [[SAVED_ARRAY:%.*]] = bitcast i8* [[T2]] to [[ARRAY_T]]*
52
53 // Call the enumeration method.
54 // CHECK-LP64-NEXT: [[T0:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_
55 // CHECK-LP64-NEXT: [[T1:%.*]] = bitcast [[ARRAY_T]]* [[SAVED_ARRAY]] to i8*
56 // CHECK-LP64-NEXT: [[SIZE:%.*]] = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, [[STATE_T]]*, [16 x i8*]*, i64)*)(i8* [[T1]], i8* [[T0]], [[STATE_T]]* [[STATE]], [16 x i8*]* [[BUFFER]], i64 16)
57
58 // Check for a nonzero result.
59 // CHECK-LP64-NEXT: [[T0:%.*]] = icmp eq i64 [[SIZE]], 0
60 // CHECK-LP64-NEXT: br i1 [[T0]]
61
62 // CHECK-LP64: [[T0:%.*]] = getelementptr inbounds [[STATE_T]], [[STATE_T]]* [[STATE]], i32 0, i32 1
63 // CHECK-LP64-NEXT: [[T1:%.*]] = load i8**, i8*** [[T0]]
64 // CHECK-LP64-NEXT: [[T2:%.*]] = getelementptr i8*, i8** [[T1]], i64
65 // CHECK-LP64-NEXT: [[T3:%.*]] = load i8*, i8** [[T2]]
66 // CHECK-LP64-NEXT: store i8* [[T3]], i8** [[X]]
67
68 // CHECK-LP64: [[D0:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
69 // CHECK-LP64: [[T0:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
70 // CHECK-LP64-NEXT: [[T1:%.*]] = load i8*, i8** [[X]]
71 // CHECK-LP64-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]])
72 // CHECK-LP64-NEXT: store i8* [[T2]], i8** [[T0]]
73 // CHECK-LP64-NEXT: [[BLOCK1:%.*]] = bitcast [[BLOCK_T]]* [[BLOCK]]
74 // CHECK-LP64-NEXT: call void @use_block(void ()* [[BLOCK1]])
75 // CHECK-LP64-NEXT: call void @llvm.objc.storeStrong(i8** [[D0]], i8* null)
76 // CHECK-LP64-NOT: call void (...) @llvm.objc.clang.arc.use(i8* [[CAPTURE]])
77
78 // CHECK-LP64-OPT: [[D0:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i64 0, i32 5
79 // CHECK-LP64-OPT: [[CAPTURE:%.*]] = load i8*, i8** [[D0]]
80 // CHECK-LP64-OPT: call void (...) @llvm.objc.clang.arc.use(i8* [[CAPTURE]])
81
82 // CHECK-LP64: [[T0:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_
83 // CHECK-LP64-NEXT: [[T1:%.*]] = bitcast [[ARRAY_T]]* [[SAVED_ARRAY]] to i8*
84 // CHECK-LP64-NEXT: [[SIZE:%.*]] = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, [[STATE_T]]*, [16 x i8*]*, i64)*)(i8* [[T1]], i8* [[T0]], [[STATE_T]]* [[STATE]], [16 x i8*]* [[BUFFER]], i64 16)
85
86 // Release the array.
87 // CHECK-LP64: [[T0:%.*]] = bitcast [[ARRAY_T]]* [[SAVED_ARRAY]] to i8*
88 // CHECK-LP64-NEXT: call void @llvm.objc.release(i8* [[T0]])
89
90 // Destroy 'array'.
91 // CHECK-LP64: [[T0:%.*]] = bitcast [[ARRAY_T]]** [[ARRAY]] to i8**
92 // CHECK-LP64-NEXT: call void @llvm.objc.storeStrong(i8** [[T0]], i8* null)
93 // CHECK-LP64-NEXT: ret void
94
95 // CHECK-LP64-LABEL: define internal void @__test0_block_invoke
96 // CHECK-LP64: [[BLOCK:%.*]] = bitcast i8* {{%.*}} to [[BLOCK_T]]*
97 // CHECK-LP64-NOT: ret
98 // CHECK-LP64: [[T0:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
99 // CHECK-LP64-NEXT: [[T2:%.*]] = load i8*, i8** [[T0]], align 8
100 // CHECK-LP64-NEXT: call void @use(i8* [[T2]])
101
102 void test1(NSArray *array) {
103 for (__weak id x in array) {
104 use_block(^{ use(x); });
105 }
106 }
107
108 // CHECK-LP64-LABEL: define void @test1(
109 // CHECK-LP64: alloca [[ARRAY_T:%.*]]*,
110 // CHECK-LP64-NEXT: [[X:%.*]] = alloca i8*,
111 // CHECK-LP64-NEXT: [[STATE:%.*]] = alloca [[STATE_T:%.*]],
112 // CHECK-LP64-NEXT: alloca [16 x i8*], align 8
113 // CHECK-LP64-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
114
115 // CHECK-LP64: [[T0:%.*]] = getelementptr inbounds [[STATE_T]], [[STATE_T]]* [[STATE]], i32 0, i32 1
116 // CHECK-LP64-NEXT: [[T1:%.*]] = load i8**, i8*** [[T0]]
117 // CHECK-LP64-NEXT: [[T2:%.*]] = getelementptr i8*, i8** [[T1]], i64
118 // CHECK-LP64-NEXT: [[T3:%.*]] = load i8*, i8** [[T2]]
119 // CHECK-LP64-NEXT: call i8* @llvm.objc.initWeak(i8** [[X]], i8* [[T3]])
120
121 // CHECK-LP64: [[D0:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
122 // CHECK-LP64: [[T0:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
123 // CHECK-LP64-NEXT: call void @llvm.objc.copyWeak(i8** [[T0]], i8** [[X]])
124 // CHECK-LP64-NEXT: [[T1:%.*]] = bitcast [[BLOCK_T]]* [[BLOCK]] to
125 // CHECK-LP64: call void @use_block
126 // CHECK-LP64-NEXT: call void @llvm.objc.destroyWeak(i8** [[D0]])
127 // CHECK-LP64-NEXT: call void @llvm.objc.destroyWeak(i8** [[X]])
128
129 // rdar://problem/9817306
130 @interface Test2
131 - (NSArray *) array;
132 @end
133 void test2(Test2 *a) {
134 for (id x in a.array) {
135 use(x);
136 }
137 }
138
139 // CHECK-LP64-LABEL: define void @test2(
140 // CHECK-LP64: [[T0:%.*]] = call [[ARRAY_T]]* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to [[ARRAY_T]]* (i8*, i8*)*)(
141 // CHECK-LP64-NEXT: [[T1:%.*]] = bitcast [[ARRAY_T]]* [[T0]] to i8*
142 // CHECK-LP64-NEXT: [[T2:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T1]])
143 // CHECK-LP64-NEXT: [[COLL:%.*]] = bitcast i8* [[T2]] to [[ARRAY_T]]*
144
145 // Make sure it's not immediately released before starting the iteration.
146 // CHECK-LP64-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_
147 // CHECK-LP64-NEXT: [[T0:%.*]] = bitcast [[ARRAY_T]]* [[COLL]] to i8*
148 // CHECK-LP64-NEXT: @objc_msgSend
149
150 // This bitcast is for the mutation check.
151 // CHECK-LP64: [[T0:%.*]] = bitcast [[ARRAY_T]]* [[COLL]] to i8*
152 // CHECK-LP64-NEXT: @objc_enumerationMutation
153
154 // This bitcast is for the 'next' message send.
155 // CHECK-LP64: [[T0:%.*]] = bitcast [[ARRAY_T]]* [[COLL]] to i8*
156 // CHECK-LP64-NEXT: @objc_msgSend
157
158 // This bitcast is for the final release.
159 // CHECK-LP64: [[T0:%.*]] = bitcast [[ARRAY_T]]* [[COLL]] to i8*
160 // CHECK-LP64-NEXT: call void @llvm.objc.release(i8* [[T0]])
161
162
163 // Check that the 'continue' label is positioned appropriately
164 // relative to the collection clenaup.
165 void test3(NSArray *array) {
166 for (id x in array) {
167 if (!x) continue;
168 use(x);
169 }
170
171 // CHECK-LP64-LABEL: define void @test3(
172 // CHECK-LP64: [[ARRAY:%.*]] = alloca [[ARRAY_T]]*, align 8
173 // CHECK-LP64-NEXT: [[X:%.*]] = alloca i8*, align 8
174 // CHECK-LP64: [[T0:%.*]] = load i8*, i8** [[X]], align 8
175 // CHECK-LP64-NEXT: [[T1:%.*]] = icmp ne i8* [[T0]], null
176 // CHECK-LP64-NEXT: br i1 [[T1]],
177 // CHECK-LP64: br label [[L:%[^ ]+]]
178 // CHECK-LP64: [[T0:%.*]] = load i8*, i8** [[X]], align 8
179 // CHECK-LP64-NEXT: call void @use(i8* [[T0]])
180 // CHECK-LP64-NEXT: br label [[L]]
181 }
182
183 @interface NSObject @end
184
185 @interface I1 : NSObject
186 - (NSArray *) foo1:(void (^)(void))block;
187 - (void) foo2;
188 @end
189
190 NSArray *array4;
191
192 @implementation I1 : NSObject
193 - (NSArray *) foo1:(void (^)(void))block {
194 block();
195 return array4;
196 }
197
198 - (void) foo2 {
199 for (id x in [self foo1:^{ use(self); }]) {
200 use(x);
201 break;
202 }
203 }
204 @end
205
206 // CHECK-LP64-LABEL: define internal void @"\01-[I1 foo2]"(
207 // CHECK-LP64: [[SELF_ADDR:%.*]] = alloca [[TY:%.*]]*,
208 // CHECK-LP64: [[BLOCK:%.*]] = alloca <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, [[TY]]* }>,
209 // CHECK-LP64: store [[TY]]* %self, [[TY]]** [[SELF_ADDR]]
210 // CHECK-LP64: [[T0:%.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, [[TY]]* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, [[TY]]* }>* [[BLOCK]], i32 0, i32 5
211 // CHECK-LP64: [[BC:%.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, [[TY]]* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, [[TY]]* }>* [[BLOCK]], i32 0, i32 5
212 // CHECK-LP64: [[T1:%.*]] = load [[TY]]*, [[TY]]** [[SELF_ADDR]]
213 // CHECK-LP64: [[T2:%.*]] = bitcast [[TY]]* [[T1]] to i8*
214 // CHECK-LP64: call i8* @llvm.objc.retain(i8* [[T2]])
215
216 // CHECK-LP64-OPT-LABEL: define internal void @"\01-[I1 foo2]"(
217 // CHECK-LP64-OPT: [[TY:%.*]]* %self
218 // CHECK-LP64-OPT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
219 // CHECK-LP64-OPT: [[T0:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i64 0, i32 5
220
221 // CHECK-LP64: [[T5:%.*]] = bitcast [[TY]]** [[T0]] to i8**
222 // CHECK-LP64: call void @llvm.objc.storeStrong(i8** [[T5]], i8* null)
223 // CHECK-LP64-NOT: call void (...) @llvm.objc.clang.arc.use([[TY]]* [[T5]])
224 // CHECK-LP64: switch i32 {{%.*}}, label %[[UNREACHABLE:.*]] [
225 // CHECK-LP64-NEXT: i32 0, label %[[CLEANUP_CONT:.*]]
226 // CHECK-LP64-NEXT: i32 2, label %[[FORCOLL_END:.*]]
227 // CHECK-LP64-NEXT: ]
228
229 // CHECK-LP64-OPT: [[T5:%.*]] = load [[TY]]*, [[TY]]** [[T0]]
230 // CHECK-LP64-OPT: call void (...) @llvm.objc.clang.arc.use([[TY]]* [[T5]])
231
232 // CHECK-LP64: {{^|:}}[[CLEANUP_CONT]]
233 // CHECK-LP64-NEXT: br label %[[FORCOLL_END]]
234
235 // CHECK-LP64: {{^|:}}[[FORCOLL_END]]
236 // CHECK-LP64-NEXT: ret void
237
238 // CHECK-LP64: {{^|:}}[[UNREACHABLE]]
239 // CHECK-LP64-NEXT: unreachable
240
241 // CHECK-LP64: attributes [[NUW]] = { nounwind }