1 // RUN: %clang_cc1 -no-opaque-pointers -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -O2 -disable-llvm-passes -o - %s | FileCheck -check-prefix=CHECK -check-prefix=CHECK-HEAP -check-prefix=CHECK-COMMON %s
2 // RUN: %clang_cc1 -no-opaque-pointers -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -O2 -disable-llvm-passes -fobjc-avoid-heapify-local-blocks -o - %s | FileCheck -check-prefix=CHECK -check-prefix=CHECK-NOHEAP -check-prefix=CHECK-COMMON %s
3 // RUN: %clang_cc1 -no-opaque-pointers -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=CHECK-UNOPT -check-prefix=CHECK-COMMON %s
5 // CHECK-COMMON: %[[STRUCT_BLOCK_DESCRIPTOR:.*]] = type { i64, i64 }
6 // CHECK-COMMON: @[[BLOCK_DESCRIPTOR_TMP44:.*]] = linkonce_odr hidden unnamed_addr constant { i64, i64, i8*, i8*, i8*, i64 } { i64 0, i64 40, i8* bitcast (void (i8*, i8*)* @__copy_helper_block_8_32s to i8*), i8* bitcast (void (i8*)* @__destroy_helper_block_8_32s to i8*), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @{{.*}}, i32 0, i32 0), i64 256 }, align 8
7 // CHECK-COMMON: @[[BLOCK_DESCRIPTOR_TMP9:.*]] = linkonce_odr hidden unnamed_addr constant { i64, i64, i8*, i8*, i8*, i64 } { i64 0, i64 40, i8* bitcast (void (i8*, i8*)* @__copy_helper_block_8_32r to i8*), i8* bitcast (void (i8*)* @__destroy_helper_block_8_32r to i8*), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @{{.*}}, i32 0, i32 0), i64 16 }, align 8
8 // CHECK-COMMON: @[[BLOCK_DESCRIPTOR_TMP46:.*]] = linkonce_odr hidden unnamed_addr constant { i64, i64, i8*, i8*, i8*, i8* } { i64 0, i64 48, i8* bitcast (void (i8*, i8*)* @__copy_helper_block_8_32s to i8*), i8* bitcast (void (i8*)* @__destroy_helper_block_8_32s to i8*), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @{{.*}}, i32 0, i32 0), i8* getelementptr inbounds ([3 x i8], [3 x i8]* @{{.*}}, i32 0, i32 0) }, align 8
9 // CHECK-COMMON: @[[BLOCK_DESCRIPTOR_TMP48:.*]] = linkonce_odr hidden unnamed_addr constant { i64, i64, i8*, i8*, i8*, i64 } { i64 0, i64 40, i8* bitcast (void (i8*, i8*)* @__copy_helper_block_8_32b to i8*), i8* bitcast (void (i8*)* @__destroy_helper_block_8_32s to i8*), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @{{.*}}, i32 0, i32 0), i64 256 }, align 8
11 // Check that no copy/dispose helpers are emitted for this block.
13 // CHECK-COMMON: @[[BLOCK_DESCRIPTOR_TMP10:.*]] = linkonce_odr hidden unnamed_addr constant { i64, i64, i8*, i8* } { i64 0, i64 40, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @{{.*}}, i32 0, i32 0), i8* getelementptr inbounds ([1 x i8], [1 x i8]* @{{.*}}, i32 0, i32 0) }, align 8
15 // This shouldn't crash.
16 void test0(id (^maker)(void)) {
20 int (^test1(int x))(void) {
21 // CHECK-LABEL: define{{.*}} i32 ()* @test1(
22 // CHECK: [[X:%.*]] = alloca i32,
23 // CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
24 // CHECK-NEXT: store i32 {{%.*}}, i32* [[X]]
25 // CHECK: [[T0:%.*]] = bitcast [[BLOCK_T]]* [[BLOCK]] to i32 ()*
26 // CHECK-NEXT: [[T1:%.*]] = bitcast i32 ()* [[T0]] to i8*
27 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retainBlock(i8* [[T1]]) [[NUW:#[0-9]+]]
28 // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to i32 ()*
29 // CHECK-NEXT: [[T4:%.*]] = bitcast i32 ()* [[T3]] to i8*
30 // CHECK-NEXT: [[T5:%.*]] = tail call i8* @llvm.objc.autoreleaseReturnValue(i8* [[T4]]) [[NUW]]
31 // CHECK-NEXT: [[T6:%.*]] = bitcast i8* [[T5]] to i32 ()*
32 // CHECK-NEXT: ret i32 ()* [[T6]]
33 return ^{ return x; };
37 // CHECK-LABEL: define{{.*}} void @test2(
38 // CHECK: [[X:%.*]] = alloca i8*,
39 // CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
40 // CHECK-NEXT: [[PARM:%.*]] = call i8* @llvm.objc.retain(i8* {{%.*}})
41 // CHECK-NEXT: store i8* [[PARM]], i8** [[X]]
42 // CHECK: [[SLOT:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
43 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]],
44 // CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]])
45 // CHECK-NEXT: store i8* [[T1]], i8** [[SLOT]],
46 // CHECK-NEXT: bitcast
47 // CHECK-NEXT: call void @test2_helper(
48 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[SLOT]]
49 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]], !clang.imprecise_release
50 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]]
51 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]], !clang.imprecise_release
52 // CHECK-NEXT: ret void
53 extern void test2_helper(id (^)(void));
54 test2_helper(^{ return x; });
56 // CHECK: define linkonce_odr hidden void @__copy_helper_block_8_32s(i8* noundef %0, i8* noundef %1) unnamed_addr #{{[0-9]+}} {
57 // CHECK: [[T0:%.*]] = load i8*, i8**
58 // CHECK-NEXT: [[SRC:%.*]] = bitcast i8* [[T0]] to [[BLOCK_T]]*
59 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8**
60 // CHECK-NEXT: [[DST:%.*]] = bitcast i8* [[T0]] to [[BLOCK_T]]*
61 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[SRC]], i32 0, i32 5
62 // CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[T0]]
63 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]]) [[NUW]]
64 // CHECK-NEXT: ret void
67 // CHECK: define linkonce_odr hidden void @__destroy_helper_block_8_32s(i8* noundef %0) unnamed_addr #{{[0-9]+}} {
68 // CHECK: [[T0:%.*]] = load i8*, i8**
69 // CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[BLOCK_T]]*
70 // CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[T1]], i32 0, i32 5
71 // CHECK-NEXT: [[T3:%.*]] = load i8*, i8** [[T2]]
72 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T3]])
73 // CHECK-NEXT: ret void
76 void test3(void (^sink)(id*)) {
80 // CHECK-LABEL: define{{.*}} void @test3(
81 // CHECK: [[SINK:%.*]] = alloca void (i8**)*
82 // CHECK-NEXT: [[STRONG:%.*]] = alloca i8*
83 // CHECK-NEXT: [[TEMP:%.*]] = alloca i8*
84 // CHECK-NEXT: bitcast void (i8**)* {{%.*}} to i8*
85 // CHECK-NEXT: call i8* @llvm.objc.retain(
86 // CHECK-NEXT: bitcast i8*
87 // CHECK-NEXT: store void (i8**)* {{%.*}}, void (i8**)** [[SINK]]
88 // CHECK-NEXT: [[STRONGPTR1:%.*]] = bitcast i8** [[STRONG]] to i8*
89 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[STRONGPTR1]])
90 // CHECK-NEXT: store i8* null, i8** [[STRONG]]
92 // CHECK-NEXT: load void (i8**)*, void (i8**)** [[SINK]]
93 // CHECK-NEXT: bitcast
94 // CHECK-NEXT: getelementptr
95 // CHECK-NEXT: [[BLOCK:%.*]] = bitcast
96 // CHECK-NEXT: [[V:%.*]] = load i8*, i8** [[STRONG]]
97 // CHECK-NEXT: store i8* [[V]], i8** [[TEMP]]
98 // CHECK-NEXT: [[F0:%.*]] = load i8*, i8**
99 // CHECK-NEXT: [[F1:%.*]] = bitcast i8* [[F0]] to void (i8*, i8**)*
100 // CHECK-NEXT: call void [[F1]](i8* noundef [[BLOCK]], i8** noundef [[TEMP]])
101 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[TEMP]]
102 // CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]])
103 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use(i8* [[V]]) [[NUW]]
104 // CHECK-NEXT: [[T2:%.*]] = load i8*, i8** [[STRONG]]
105 // CHECK-NEXT: store i8* [[T1]], i8** [[STRONG]]
106 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T2]])
108 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[STRONG]]
109 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
110 // CHECK-NEXT: [[STRONGPTR2:%.*]] = bitcast i8** [[STRONG]] to i8*
111 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[STRONGPTR2]])
113 // CHECK-NEXT: load void (i8**)*, void (i8**)** [[SINK]]
114 // CHECK-NEXT: bitcast
115 // CHECK-NEXT: call void @llvm.objc.release
116 // CHECK-NEXT: ret void
121 id test4_source(void);
122 void test4_helper(void (^)(void));
123 __block id var = test4_source();
124 test4_helper(^{ var = 0; });
126 // CHECK-LABEL: define{{.*}} void @test4()
127 // CHECK: [[VAR:%.*]] = alloca [[BYREF_T:%.*]],
128 // CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
129 // CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[VAR]], i32 0, i32 2
130 // 0x02000000 - has copy/dispose helpers strong
131 // CHECK-NEXT: store i32 838860800, i32* [[T0]]
132 // CHECK: [[SLOT:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[VAR]], i32 0, i32 6
133 // CHECK-NEXT: [[T0:%.*]] = call i8* @test4_source() [ "clang.arc.attachedcall"(i8* (i8*)* @llvm.objc.retainAutoreleasedReturnValue) ]
134 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use(i8* [[T0]])
135 // CHECK-NEXT: store i8* [[T0]], i8** [[SLOT]]
136 // CHECK-NEXT: [[SLOT:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[VAR]], i32 0, i32 6
137 // 0x42800000 - has signature, copy/dispose helpers, as well as BLOCK_HAS_EXTENDED_LAYOUT
138 // CHECK: store i32 -1040187392,
139 // CHECK: [[T0:%.*]] = bitcast [[BYREF_T]]* [[VAR]] to i8*
140 // CHECK-NEXT: store i8* [[T0]], i8**
141 // CHECK: call void @test4_helper(
142 // CHECK: [[T0:%.*]] = bitcast [[BYREF_T]]* [[VAR]] to i8*
143 // CHECK-NEXT: call void @_Block_object_dispose(i8* [[T0]], i32 8)
144 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[SLOT]]
145 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
148 // CHECK-LABEL: define internal void @__Block_byref_object_copy_(i8* noundef %0, i8* noundef %1) #{{[0-9]+}} {
149 // CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* {{%.*}}, i32 0, i32 6
150 // CHECK-NEXT: load i8*, i8**
151 // CHECK-NEXT: bitcast i8* {{%.*}} to [[BYREF_T]]*
152 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* {{%.*}}, i32 0, i32 6
153 // CHECK-NEXT: [[T2:%.*]] = load i8*, i8** [[T1]]
154 // CHECK-NEXT: store i8* [[T2]], i8** [[T0]]
155 // CHECK-NEXT: store i8* null, i8** [[T1]]
157 // CHECK-LABEL: define internal void @__Block_byref_object_dispose_(i8* noundef %0) #{{[0-9]+}} {
158 // CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* {{%.*}}, i32 0, i32 6
159 // CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[T0]]
160 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
162 // CHECK-LABEL: define internal void @__test4_block_invoke
163 // CHECK: [[SLOT:%.*]] = getelementptr inbounds {{.*}}, i32 0, i32 6
164 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[SLOT]], align 8
165 // CHECK-NEXT: store i8* null, i8** [[SLOT]],
166 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
167 // CHECK-NEXT: ret void
169 // CHECK-LABEL: define linkonce_odr hidden void @__copy_helper_block_8_32r(i8* noundef %0, i8* noundef %1) unnamed_addr #{{[0-9]+}} {
170 // CHECK: call void @_Block_object_assign(i8* {{%.*}}, i8* {{%.*}}, i32 8)
172 // CHECK-LABEL: define linkonce_odr hidden void @__destroy_helper_block_8_32r(i8* noundef %0) unnamed_addr #{{[0-9]+}} {
173 // CHECK: call void @_Block_object_dispose(i8* {{%.*}}, i32 8)
177 extern id test5_source(void);
178 void test5_helper(void (^)(void));
179 __unsafe_unretained id var = test5_source();
180 test5_helper(^{ (void) var; });
182 // CHECK-LABEL: define{{.*}} void @test5()
183 // CHECK: [[VAR:%.*]] = alloca i8*
184 // CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
185 // CHECK-NEXT: [[VARPTR1:%.*]] = bitcast i8** [[VAR]] to i8*
186 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[VARPTR1]])
187 // CHECK: [[T1:%.*]] = call i8* @test5_source() [ "clang.arc.attachedcall"(i8* (i8*)* @llvm.objc.retainAutoreleasedReturnValue) ]
188 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use(i8* [[T1]])
189 // CHECK-NEXT: store i8* [[T1]], i8** [[VAR]],
190 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
191 // 0x40800000 - has signature but no copy/dispose, as well as BLOCK_HAS_EXTENDED_LAYOUT
192 // CHECK: store i32 -1073741824, i32*
193 // CHECK: [[CAPTURE:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
194 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[VAR]]
195 // CHECK-NEXT: store i8* [[T0]], i8** [[CAPTURE]]
196 // CHECK-NEXT: [[T0:%.*]] = bitcast [[BLOCK_T]]* [[BLOCK]] to
197 // CHECK: call void @test5_helper
198 // CHECK-NEXT: [[VARPTR2:%.*]] = bitcast i8** [[VAR]] to i8*
199 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[VARPTR2]])
200 // CHECK-NEXT: ret void
204 id test6_source(void);
205 void test6_helper(void (^)(void));
206 __block __weak id var = test6_source();
207 test6_helper(^{ var = 0; });
209 // CHECK-LABEL: define{{.*}} void @test6()
210 // CHECK: [[VAR:%.*]] = alloca [[BYREF_T:%.*]],
211 // CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
212 // CHECK-NEXT: [[VARPTR1:%.*]] = bitcast [[BYREF_T]]* [[VAR]] to i8*
213 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 48, i8* [[VARPTR1]])
214 // CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[VAR]], i32 0, i32 2
215 // 0x02000000 - has copy/dispose helpers weak
216 // CHECK-NEXT: store i32 1107296256, i32* [[T0]]
217 // CHECK: [[SLOT:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[VAR]], i32 0, i32 6
218 // CHECK-NEXT: [[T1:%.*]] = call i8* @test6_source() [ "clang.arc.attachedcall"(i8* (i8*)* @llvm.objc.retainAutoreleasedReturnValue) ]
219 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use(i8* [[T1]])
220 // CHECK-NEXT: call i8* @llvm.objc.initWeak(i8** [[SLOT]], i8* [[T1]])
221 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
222 // CHECK-NEXT: [[SLOT:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[VAR]], i32 0, i32 6
223 // 0x42800000 - has signature, copy/dispose helpers, as well as BLOCK_HAS_EXTENDED_LAYOUT
224 // CHECK: store i32 -1040187392,
225 // 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
226 // CHECK: store %[[STRUCT_BLOCK_DESCRIPTOR]]* bitcast ({ i64, i64, i8*, i8*, i8*, i64 }* @[[BLOCK_DESCRIPTOR_TMP9]] to %[[STRUCT_BLOCK_DESCRIPTOR]]*), %[[STRUCT_BLOCK_DESCRIPTOR]]** %[[BLOCK_DESCRIPTOR]], align 8
227 // CHECK: [[T0:%.*]] = bitcast [[BYREF_T]]* [[VAR]] to i8*
228 // CHECK-NEXT: store i8* [[T0]], i8**
229 // CHECK: call void @test6_helper(
230 // CHECK: [[T0:%.*]] = bitcast [[BYREF_T]]* [[VAR]] to i8*
231 // CHECK-NEXT: call void @_Block_object_dispose(i8* [[T0]], i32 8)
232 // CHECK-NEXT: call void @llvm.objc.destroyWeak(i8** [[SLOT]])
233 // CHECK-NEXT: [[VARPTR2:%.*]] = bitcast [[BYREF_T]]* [[VAR]] to i8*
234 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 48, i8* [[VARPTR2]])
235 // CHECK-NEXT: ret void
237 // CHECK-LABEL: define internal void @__Block_byref_object_copy_.{{[0-9]+}}(i8* noundef %0, i8* noundef %1) #{{[0-9]+}} {
238 // CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* {{%.*}}, i32 0, i32 6
239 // CHECK-NEXT: load i8*, i8**
240 // CHECK-NEXT: bitcast i8* {{%.*}} to [[BYREF_T]]*
241 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* {{%.*}}, i32 0, i32 6
242 // CHECK-NEXT: call void @llvm.objc.moveWeak(i8** [[T0]], i8** [[T1]])
244 // CHECK-LABEL: define internal void @__Block_byref_object_dispose_.{{[0-9]+}}(i8* noundef %0) #{{[0-9]+}} {
245 // CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* {{%.*}}, i32 0, i32 6
246 // CHECK-NEXT: call void @llvm.objc.destroyWeak(i8** [[T0]])
248 // CHECK-LABEL: define internal void @__test6_block_invoke
249 // CHECK: [[SLOT:%.*]] = getelementptr inbounds {{.*}}, i32 0, i32 6
250 // CHECK-NEXT: call i8* @llvm.objc.storeWeak(i8** [[SLOT]], i8* null)
251 // CHECK-NEXT: ret void
255 id test7_source(void);
256 void test7_helper(void (^)(void));
257 void test7_consume(id);
258 __weak id var = test7_source();
259 test7_helper(^{ test7_consume(var); });
261 // CHECK-LABEL: define{{.*}} void @test7()
262 // CHECK: [[VAR:%.*]] = alloca i8*,
263 // CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
264 // CHECK: [[T1:%.*]] = call i8* @test7_source() [ "clang.arc.attachedcall"(i8* (i8*)* @llvm.objc.retainAutoreleasedReturnValue) ]
265 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use(i8* [[T1]])
266 // CHECK-NEXT: call i8* @llvm.objc.initWeak(i8** [[VAR]], i8* [[T1]])
267 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
268 // 0x42800000 - has signature, copy/dispose helpers, as well as BLOCK_HAS_EXTENDED_LAYOUT
269 // CHECK: store i32 -1040187392,
270 // CHECK: [[SLOT:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
271 // CHECK-NEXT: call void @llvm.objc.copyWeak(i8** [[SLOT]], i8** [[VAR]])
272 // CHECK: call void @test7_helper(
273 // CHECK-NEXT: call void @llvm.objc.destroyWeak(i8** {{%.*}})
274 // CHECK-NEXT: call void @llvm.objc.destroyWeak(i8** [[VAR]])
277 // CHECK-LABEL: define internal void @__test7_block_invoke
278 // CHECK: [[SLOT:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* {{%.*}}, i32 0, i32 5
279 // CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.objc.loadWeakRetained(i8** [[SLOT]])
280 // CHECK-NEXT: call void @test7_consume(i8* noundef [[T0]])
281 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
284 // CHECK-LABEL: define linkonce_odr hidden void @__copy_helper_block_8_32w(i8* noundef %0, i8* noundef %1) unnamed_addr #{{[0-9]+}} {
285 // CHECK: getelementptr
286 // CHECK-NEXT: getelementptr
287 // CHECK-NEXT: call void @llvm.objc.copyWeak(
289 // CHECK-LABEL: define linkonce_odr hidden void @__destroy_helper_block_8_32w(i8* noundef %0) unnamed_addr #{{[0-9]+}} {
290 // CHECK: getelementptr
291 // CHECK-NEXT: call void @llvm.objc.destroyWeak(
294 @interface Test8 @end
295 @implementation Test8
297 // CHECK: define internal void @"\01-[Test8 test]"
298 // CHECK: [[SELF:%.*]] = alloca [[TEST8:%.*]]*,
299 // CHECK-NEXT: alloca i8*
300 // CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
303 // CHECK: [[T0:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
304 // CHECK-NEXT: [[T1:%.*]] = load [[TEST8]]*, [[TEST8]]** [[SELF]],
305 // CHECK-NEXT: store %0* [[T1]], %0** [[T0]]
306 // CHECK-NEXT: bitcast [[BLOCK_T]]* [[BLOCK]] to
307 // CHECK: call void @test8_helper(
308 // CHECK-NEXT: [[T2:%.*]] = load [[TEST8]]*, [[TEST8]]** [[T0]]
309 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use([[TEST8]]* [[T2]])
312 extern void test8_helper(void (^)(void));
313 test8_helper(^{ (void) self; });
318 typedef id __attribute__((ns_returns_retained)) blocktype(void);
319 extern void test9_consume_block(blocktype^);
321 extern id test9_produce(void);
322 return test9_produce();
325 // CHECK-LABEL: define{{.*}} i8* @test9(
326 // CHECK: load i8*, i8** getelementptr
327 // CHECK-NEXT: bitcast i8*
328 // CHECK-NEXT: call i8*
329 // CHECK-NEXT: tail call i8* @llvm.objc.autoreleaseReturnValue
330 // CHECK-NEXT: ret i8*
332 // CHECK: call i8* @test9_produce() [ "clang.arc.attachedcall"(i8* (i8*)* @llvm.objc.retainAutoreleasedReturnValue) ]
333 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use(
334 // CHECK-NEXT: ret i8*
337 // rdar://problem/9814099
338 // Test that we correctly initialize __block variables
339 // when the initialization captures the variable.
341 __block void (^block)(void) = ^{ block(); };
342 // CHECK-LABEL: define{{.*}} void @test10a()
343 // CHECK: [[BYREF:%.*]] = alloca [[BYREF_T:%.*]],
344 // CHECK-NOHEAP: [[BLOCK1:%.*]] = alloca <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>, align 8
346 // Zero-initialization before running the initializer.
347 // CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[BYREF]], i32 0, i32 6
348 // CHECK-NEXT: store void ()* null, void ()** [[T0]], align 8
350 // Run the initializer as an assignment.
351 // CHECK-HEAP: [[T0:%.*]] = bitcast void ()* {{%.*}} to i8*
352 // CHECK-HEAP-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retainBlock(i8* [[T0]])
353 // CHECK-HEAP-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to void ()*
354 // CHECK-NOHEAP: [[T2:%.*]] = bitcast <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>* [[BLOCK1]] to void ()*
355 // CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[BYREF]], i32 0, i32 1
356 // CHECK-NEXT: [[T4:%.*]] = load [[BYREF_T]]*, [[BYREF_T]]** [[T3]]
357 // CHECK-NEXT: [[T5:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[T4]], i32 0, i32 6
358 // CHECK-NEXT: [[T6:%.*]] = load void ()*, void ()** [[T5]], align 8
359 // CHECK-HEAP-NEXT: store void ()* {{%.*}}, void ()** [[T5]], align 8
360 // CHECK-NOHEAP-NEXT: store void ()* [[T2]], void ()** [[T5]], align 8
361 // CHECK-NEXT: [[T7:%.*]] = bitcast void ()* [[T6]] to i8*
362 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T7]])
364 // Destroy at end of function.
365 // CHECK-NEXT: [[SLOT:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[BYREF]], i32 0, i32 6
366 // CHECK-NEXT: [[T0:%.*]] = bitcast [[BYREF_T]]* [[BYREF]] to i8*
367 // CHECK-NEXT: call void @_Block_object_dispose(i8* [[T0]], i32 8)
368 // CHECK-NEXT: [[T1:%.*]] = load void ()*, void ()** [[SLOT]]
369 // CHECK-NEXT: [[T2:%.*]] = bitcast void ()* [[T1]] to i8*
370 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T2]])
374 // <rdar://problem/10402698>: do this copy and dispose with
375 // objc_retainBlock/release instead of _Block_object_assign/destroy.
376 // We can also use _Block_object_assign/destroy with
377 // BLOCK_FIELD_IS_BLOCK as long as we don't pass BLOCK_BYREF_CALLER.
379 // CHECK-LABEL: define internal void @__Block_byref_object_copy_.{{[0-9]+}}(i8* noundef %0, i8* noundef %1) #{{[0-9]+}} {
380 // CHECK: [[D0:%.*]] = load i8*, i8** {{%.*}}
381 // CHECK-NEXT: [[D1:%.*]] = bitcast i8* [[D0]] to [[BYREF_T]]*
382 // CHECK-NEXT: [[D2:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[D1]], i32 0, i32 6
383 // CHECK-NEXT: [[S0:%.*]] = load i8*, i8** {{%.*}}
384 // CHECK-NEXT: [[S1:%.*]] = bitcast i8* [[S0]] to [[BYREF_T]]*
385 // CHECK-NEXT: [[S2:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[S1]], i32 0, i32 6
386 // CHECK-NEXT: [[T0:%.*]] = load void ()*, void ()** [[S2]], align 8
387 // CHECK-NEXT: [[T1:%.*]] = bitcast void ()* [[T0]] to i8*
388 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retainBlock(i8* [[T1]])
389 // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to void ()*
390 // CHECK-NEXT: store void ()* [[T3]], void ()** [[D2]], align 8
393 // CHECK-LABEL: define internal void @__Block_byref_object_dispose_.{{[0-9]+}}(i8* noundef %0) #{{[0-9]+}} {
394 // CHECK: [[T0:%.*]] = load i8*, i8** {{%.*}}
395 // CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[BYREF_T]]*
396 // CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[T1]], i32 0, i32 6
397 // CHECK-NEXT: [[T3:%.*]] = load void ()*, void ()** [[T2]]
398 // CHECK-NEXT: [[T4:%.*]] = bitcast void ()* [[T3]] to i8*
399 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T4]])
400 // CHECK-NEXT: ret void
402 // Test that we correctly assign to __block variables when the
403 // assignment captures the variable.
405 __block void (^block)(void);
406 block = ^{ block(); };
408 // CHECK-LABEL: define{{.*}} void @test10b()
409 // CHECK: [[BYREF:%.*]] = alloca [[BYREF_T:%.*]],
410 // CHECK-NOHEAP: [[BLOCK3:%.*]] = alloca <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>, align 8
413 // CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[BYREF]], i32 0, i32 6
414 // CHECK-NEXT: store void ()* null, void ()** [[T0]], align 8
416 // CHECK-NEXT: [[SLOT:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[BYREF]], i32 0, i32 6
419 // CHECK-HEAP: [[T0:%.*]] = bitcast void ()* {{%.*}} to i8*
420 // CHECK-HEAP-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retainBlock(i8* [[T0]])
421 // CHECK-HEAP-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to void ()*
422 // CHECK-NOHEAP: [[T2:%.*]] = bitcast <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>* [[BLOCK3]] to void ()*
423 // CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[BYREF]], i32 0, i32 1
424 // CHECK-NEXT: [[T4:%.*]] = load [[BYREF_T]]*, [[BYREF_T]]** [[T3]]
425 // CHECK-NEXT: [[T5:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[T4]], i32 0, i32 6
426 // CHECK-NEXT: [[T6:%.*]] = load void ()*, void ()** [[T5]], align 8
427 // CHECK-HEAP-NEXT: store void ()* {{%.*}}, void ()** [[T5]], align 8
428 // CHECK-NOHEAP-NEXT: store void ()* [[T2]], void ()** [[T5]], align 8
429 // CHECK-NEXT: [[T7:%.*]] = bitcast void ()* [[T6]] to i8*
430 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T7]])
432 // Destroy at end of function.
433 // CHECK-NEXT: [[T0:%.*]] = bitcast [[BYREF_T]]* [[BYREF]] to i8*
434 // CHECK-NEXT: call void @_Block_object_dispose(i8* [[T0]], i32 8)
435 // CHECK-NEXT: [[T1:%.*]] = load void ()*, void ()** [[SLOT]]
436 // CHECK-NEXT: [[T2:%.*]] = bitcast void ()* [[T1]] to i8*
437 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T2]])
441 // rdar://problem/10088932
442 void test11_helper(id);
445 test11_helper(^{ (void) x; });
447 // CHECK-LABEL: define{{.*}} void @test11a()
448 // CHECK: [[X:%.*]] = alloca i32, align 4
449 // CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]], align 8
450 // CHECK: [[T0:%.*]] = bitcast [[BLOCK_T]]* [[BLOCK]] to void ()*
451 // CHECK-NEXT: [[T1:%.*]] = bitcast void ()* [[T0]] to i8*
452 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retainBlock(i8* [[T1]])
453 // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to void ()*
454 // CHECK-NEXT: [[T4:%.*]] = bitcast void ()* [[T3]] to i8*
455 // CHECK-NEXT: call void @test11_helper(i8* noundef [[T4]])
456 // CHECK-NEXT: [[T5:%.*]] = bitcast void ()* [[T3]] to i8*
457 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T5]])
462 id b = ^{ (void) x; };
464 // CHECK-LABEL: define{{.*}} void @test11b()
465 // CHECK: [[X:%.*]] = alloca i32, align 4
466 // CHECK-NEXT: [[B:%.*]] = alloca i8*, align 8
467 // CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]], align 8
468 // CHECK: [[T0:%.*]] = bitcast [[BLOCK_T]]* [[BLOCK]] to void ()*
469 // CHECK-NEXT: [[T1:%.*]] = bitcast void ()* [[T0]] to i8*
470 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retainBlock(i8* [[T1]])
471 // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to void ()*
472 // CHECK-NEXT: [[T4:%.*]] = bitcast void ()* [[T3]] to i8*
473 // CHECK-NEXT: store i8* [[T4]], i8** [[B]], align 8
474 // CHECK-NEXT: [[T5:%.*]] = load i8*, i8** [[B]]
475 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T5]])
479 // rdar://problem/9979150
481 @property (strong) void(^ablock)(void);
482 @property (nonatomic, strong) void(^nblock)(void);
484 @implementation Test12
485 @synthesize ablock, nblock;
486 // CHECK: define internal void ()* @"\01-[Test12 ablock]"(
487 // CHECK: call i8* @objc_getProperty(i8* noundef {{%.*}}, i8* noundef {{%.*}}, i64 noundef {{%.*}}, i1 noundef zeroext true)
489 // CHECK: define internal void @"\01-[Test12 setAblock:]"(
490 // CHECK: call void @objc_setProperty(i8* noundef {{%.*}}, i8* noundef {{%.*}}, i64 noundef {{%.*}}, i8* noundef {{%.*}}, i1 noundef zeroext true, i1 noundef zeroext true)
492 // CHECK: define internal void ()* @"\01-[Test12 nblock]"(
493 // CHECK: %add.ptr = getelementptr inbounds i8, i8* %1, i64 %ivar
495 // CHECK: define internal void @"\01-[Test12 setNblock:]"(
496 // CHECK: call void @objc_setProperty(i8* noundef {{%.*}}, i8* noundef {{%.*}}, i64 noundef {{%.*}}, i8* noundef {{%.*}}, i1 noundef zeroext false, i1 noundef zeroext true)
499 // rdar://problem/10131784
501 extern void test13_helper(id);
502 extern void test13_use(void(^)(void));
504 void (^b)(void) = (x ? ^{test13_helper(x);} : 0);
507 // CHECK-LABEL: define{{.*}} void @test13(
508 // CHECK: [[X:%.*]] = alloca i8*, align 8
509 // CHECK-NEXT: [[B:%.*]] = alloca void ()*, align 8
510 // CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:.*]], align 8
511 // CHECK-NEXT: [[CLEANUP_ACTIVE:%.*]] = alloca i1
512 // CHECK-NEXT: [[COND_CLEANUP_SAVE:%.*]] = alloca i8**,
513 // CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.objc.retain(i8* {{%.*}})
514 // CHECK-NEXT: store i8* [[T0]], i8** [[X]], align 8
515 // CHECK-NEXT: [[BPTR1:%.*]] = bitcast void ()** [[B]] to i8*
516 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[BPTR1]])
517 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]], align 8
518 // CHECK-NEXT: [[T1:%.*]] = icmp ne i8* [[T0]], null
519 // CHECK-NEXT: store i1 false, i1* [[CLEANUP_ACTIVE]]
520 // CHECK-NEXT: br i1 [[T1]],
523 // CHECK: [[CAPTURE:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
524 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]], align 8
525 // CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]])
526 // CHECK-NEXT: store i8* [[T1]], i8** [[CAPTURE]], align 8
527 // CHECK-NEXT: store i1 true, i1* [[CLEANUP_ACTIVE]]
528 // CHECK-NEXT: store i8** [[CAPTURE]], i8*** [[COND_CLEANUP_SAVE]], align 8
529 // CHECK-NEXT: bitcast [[BLOCK_T]]* [[BLOCK]] to void ()*
530 // CHECK-NEXT: br label
532 // CHECK: [[T0:%.*]] = phi void ()*
533 // CHECK-NEXT: [[T1:%.*]] = bitcast void ()* [[T0]] to i8*
534 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retainBlock(i8* [[T1]])
535 // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to void ()*
536 // CHECK-NEXT: store void ()* [[T3]], void ()** [[B]], align 8
537 // CHECK-NEXT: [[T0:%.*]] = load void ()*, void ()** [[B]], align 8
538 // CHECK-NEXT: call void @test13_use(void ()* noundef [[T0]])
539 // CHECK-NEXT: [[T0:%.*]] = load void ()*, void ()** [[B]]
540 // CHECK-NEXT: [[T1:%.*]] = bitcast void ()* [[T0]] to i8*
541 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
543 // CHECK-NEXT: [[T0:%.*]] = load i1, i1* [[CLEANUP_ACTIVE]]
544 // CHECK-NEXT: br i1 [[T0]]
545 // CHECK: [[V12:%.*]] = load i8**, i8*** [[COND_CLEANUP_SAVE]], align 8
546 // CHECK: [[T0:%.*]] = load i8*, i8** [[V12]]
547 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
548 // CHECK-NEXT: br label
550 // CHECK: [[BPTR2:%.*]] = bitcast void ()** [[B]] to i8*
551 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[BPTR2]])
552 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]]
553 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
554 // CHECK-NEXT: ret void
557 // <rdar://problem/10907510>
559 void (^const x[1])(void) = { ^{} };
563 // Don't make invalid ASTs and crash.
564 void test15_helper(void (^block)(void), int x);
566 test15_helper(^{ (void) a; }, ({ a; }));
571 void (^BLKVAR)(void) = ^{ BLKVAR(); };
573 // CHECK-LABEL: define{{.*}} void @test16(
574 // CHECK: [[BLKVAR:%.*]] = alloca void ()*, align 8
575 // CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
576 // CHECK-NEXT: [[BLKVARPTR1:%.*]] = bitcast void ()** [[BLKVAR]] to i8*
577 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[BLKVARPTR1]])
578 // CHECK-NEXT: store void ()* null, void ()** [[BLKVAR]], align 8
583 // This is an intentional exception to our conservative jump-scope
584 // checking for full-expressions containing block literals with
585 // non-trivial cleanups: if the block literal appears in the operand
586 // of a return statement, there's no need to extend its lifetime.
587 id (^test17(id self, int which))(void) {
589 case 1: return ^{ return self; };
590 case 0: return ^{ return self; };
594 // CHECK-LABEL: define{{.*}} i8* ()* @test17(
595 // CHECK: [[RET:%.*]] = alloca i8* ()*, align
596 // CHECK-NEXT: [[SELF:%.*]] = alloca i8*,
597 // CHECK: [[B0:%.*]] = alloca [[BLOCK:<.*>]], align
598 // CHECK: [[B1:%.*]] = alloca [[BLOCK]], align
599 // CHECK: [[T0:%.*]] = call i8* @llvm.objc.retain(i8*
600 // CHECK-NEXT: store i8* [[T0]], i8** [[SELF]], align
601 // CHECK-NOT: objc_retain
602 // CHECK-NOT: objc_release
603 // CHECK: [[CAPTURED:%.*]] = getelementptr inbounds [[BLOCK]], [[BLOCK]]* [[B0]], i32 0, i32 5
604 // CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[SELF]], align
605 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]])
606 // CHECK-NEXT: store i8* [[T2]], i8** [[CAPTURED]],
607 // CHECK-NEXT: [[T0:%.*]] = bitcast [[BLOCK]]* [[B0]] to i8* ()*
608 // CHECK-NEXT: [[T1:%.*]] = bitcast i8* ()* [[T0]] to i8*
609 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retainBlock(i8* [[T1]])
610 // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to i8* ()*
611 // CHECK-NEXT: store i8* ()* [[T3]], i8* ()** [[RET]]
612 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[CAPTURED]]
613 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
614 // CHECK-NEXT: store i32
615 // CHECK-NEXT: br label
616 // CHECK-NOT: objc_retain
617 // CHECK-NOT: objc_release
618 // CHECK: [[CAPTURED:%.*]] = getelementptr inbounds [[BLOCK]], [[BLOCK]]* [[B1]], i32 0, i32 5
619 // CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[SELF]], align
620 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]])
621 // CHECK-NEXT: store i8* [[T2]], i8** [[CAPTURED]],
622 // CHECK-NEXT: [[T0:%.*]] = bitcast [[BLOCK]]* [[B1]] to i8* ()*
623 // CHECK-NEXT: [[T1:%.*]] = bitcast i8* ()* [[T0]] to i8*
624 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retainBlock(i8* [[T1]])
625 // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to i8* ()*
626 // CHECK-NEXT: store i8* ()* [[T3]], i8* ()** [[RET]]
627 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[CAPTURED]]
628 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
629 // CHECK-NEXT: store i32
630 // CHECK-NEXT: br label
633 // CHECK-UNOPT-LABEL: define{{.*}} void @test18(
634 // CHECK-UNOPT: [[X:%.*]] = alloca i8*,
635 // CHECK-UNOPT-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
636 // CHECK-UNOPT-NEXT: store i8* null, i8** [[X]]
637 // CHECK-UNOPT-NEXT: call void @llvm.objc.storeStrong(i8** [[X]],
638 // CHECK-UNOPT: %[[BLOCK_DESCRIPTOR:.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 4
639 // CHECK-UNOPT: store %[[STRUCT_BLOCK_DESCRIPTOR]]* bitcast ({ i64, i64, i8*, i8*, i8*, i64 }* @[[BLOCK_DESCRIPTOR_TMP44]] to %[[STRUCT_BLOCK_DESCRIPTOR]]*), %[[STRUCT_BLOCK_DESCRIPTOR]]** %[[BLOCK_DESCRIPTOR]], align 8
640 // CHECK-UNOPT: [[SLOT:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
641 // CHECK-UNOPT-NEXT: [[T0:%.*]] = load i8*, i8** [[X]],
642 // CHECK-UNOPT-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]])
643 // CHECK-UNOPT-NEXT: store i8* [[T1]], i8** [[SLOT]],
644 // CHECK-UNOPT-NEXT: bitcast
645 // CHECK-UNOPT-NEXT: call void @test18_helper(
646 // CHECK-UNOPT-NEXT: call void @llvm.objc.storeStrong(i8** [[SLOT]], i8* null) [[NUW:#[0-9]+]]
647 // CHECK-UNOPT-NEXT: call void @llvm.objc.storeStrong(i8** [[X]], i8* null) [[NUW]]
648 // CHECK-UNOPT-NEXT: ret void
649 extern void test18_helper(id (^)(void));
650 test18_helper(^{ return x; });
653 // Ensure that we don't emit helper code in copy/dispose routines for variables
654 // that are const-captured.
655 void testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers(id x, id y) {
656 id __unsafe_unretained unsafeObject = x;
657 (^ { testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers(x, unsafeObject); })();
660 // CHECK-LABEL: define{{.*}} void @testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers
661 // %[[BLOCK_DESCRIPTOR:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8* }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8* }>* %{{.*}}, i32 0, i32 4
662 // CHECK: store %[[STRUCT_BLOCK_DESCRIPTOR]]* bitcast ({ i64, i64, i8*, i8*, i8*, i8* }* @[[BLOCK_DESCRIPTOR_TMP46]] to %[[STRUCT_BLOCK_DESCRIPTOR]]*), %[[STRUCT_BLOCK_DESCRIPTOR]]** %[[BLOCK_DESCRIPTOR]], align 8
664 // CHECK-LABEL: define internal void @__testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers_block_invoke
665 // CHECK-UNOPT-LABEL: define internal void @__testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers_block_invoke
668 void test19_sink(void (^)(int));
669 void test19(void (^b)(void)) {
670 // CHECK-LABEL: define{{.*}} void @test19(
672 // CHECK: [[B:%.*]] = alloca void ()*,
673 // CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
674 // CHECK-NEXT: [[T0:%.*]] = bitcast void ()* {{%.*}} to i8*
675 // CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]])
676 // CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to void ()*
677 // CHECK-NEXT: store void ()* [[T2]], void ()** [[B]]
679 // Block setup. We skip most of this. Note the bare retain.
680 // CHECK: %[[BLOCK_DESCRIPTOR:.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 4
681 // CHECK: store %[[STRUCT_BLOCK_DESCRIPTOR]]* bitcast ({ i64, i64, i8*, i8*, i8*, i64 }* @[[BLOCK_DESCRIPTOR_TMP48]] to %[[STRUCT_BLOCK_DESCRIPTOR]]*), %[[STRUCT_BLOCK_DESCRIPTOR]]** %[[BLOCK_DESCRIPTOR]], align 8
682 // CHECK: [[SLOT:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
683 // CHECK-NEXT: [[T0:%.*]] = load void ()*, void ()** [[B]],
684 // CHECK-NEXT: [[T1:%.*]] = bitcast void ()* [[T0]] to i8*
685 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]])
686 // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to void ()*
687 // CHECK-NEXT: store void ()* [[T3]], void ()** [[SLOT]],
689 // CHECK-NEXT: [[T0:%.*]] = bitcast [[BLOCK_T]]* [[BLOCK]] to void (i32)*
690 // CHECK-NEXT: call void @test19_sink(void (i32)* noundef [[T0]])
692 test19_sink(^(int x) { b(); });
695 // CHECK-NEXT: [[T0:%.*]] = load void ()*, void ()** [[SLOT]]
696 // CHECK-NEXT: [[T1:%.*]] = bitcast void ()* [[T0]] to i8*
697 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
700 // CHECK-NEXT: [[T0:%.*]] = load void ()*, void ()** [[B]]
701 // CHECK-NEXT: [[T1:%.*]] = bitcast void ()* [[T0]] to i8*
702 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
704 // CHECK-NEXT: ret void
707 // CHECK-LABEL: define{{.*}} void @test20(
708 // CHECK: [[XADDR:%.*]] = alloca i8*
709 // CHECK-NEXT: [[BLOCK:%.*]] = alloca <[[BLOCKTY:.*]]>
710 // CHECK-NEXT: [[RETAINEDX:%.*]] = call i8* @llvm.objc.retain(i8* %{{.*}})
711 // CHECK-NEXT: store i8* [[RETAINEDX]], i8** [[XADDR]]
712 // CHECK: [[BLOCKCAPTURED:%.*]] = getelementptr inbounds <[[BLOCKTY]]>, <[[BLOCKTY]]>* [[BLOCK]], i32 0, i32 5
713 // CHECK: [[CAPTURED:%.*]] = load i8*, i8** [[XADDR]]
714 // CHECK: store i8* [[CAPTURED]], i8** [[BLOCKCAPTURED]]
715 // CHECK: [[CAPTURE:%.*]] = load i8*, i8** [[BLOCKCAPTURED]]
716 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use(i8* [[CAPTURE]])
717 // CHECK-NEXT: [[X:%.*]] = load i8*, i8** [[XADDR]]
718 // CHECK-NEXT: call void @llvm.objc.release(i8* [[X]])
719 // CHECK-NEXT: ret void
721 // CHECK-UNOPT-LABEL: define{{.*}} void @test20(
722 // CHECK-UNOPT: [[XADDR:%.*]] = alloca i8*
723 // CHECK-UNOPT-NEXT: [[BLOCK:%.*]] = alloca <[[BLOCKTY:.*]]>
724 // CHECK-UNOPT: [[BLOCKCAPTURED:%.*]] = getelementptr inbounds <[[BLOCKTY]]>, <[[BLOCKTY]]>* [[BLOCK]], i32 0, i32 5
725 // CHECK-UNOPT: [[CAPTURED:%.*]] = load i8*, i8** [[XADDR]]
726 // CHECK-UNOPT: [[RETAINED:%.*]] = call i8* @llvm.objc.retain(i8* [[CAPTURED]])
727 // CHECK-UNOPT: store i8* [[RETAINED]], i8** [[BLOCKCAPTURED]]
728 // CHECK-UNOPT: call void @llvm.objc.storeStrong(i8** [[BLOCKCAPTURED]], i8* null)
730 void test20_callee(void (^)(void));
731 void test20(const id x) {
732 test20_callee(^{ (void)x; });
735 // CHECK-LABEL: define{{.*}} void @test21(
736 // CHECK: %[[V6:.*]] = call i8* @llvm.objc.retainBlock(
737 // CHECK: %[[V7:.*]] = bitcast i8* %[[V6]] to void ()*
738 // CHECK: call void (i32, ...) @test21_callee(i32 noundef 1, void ()* noundef %[[V7]]),
740 void test21_callee(int n, ...);
742 test21_callee(1, ^{ (void)x; });
745 // The lifetime of 'x', which is captured by the block in the statement
746 // expression, should be extended.
748 // CHECK-COMMON-LABEL: define{{.*}} i8* @test22(
749 // CHECK-COMMON: %[[BLOCK_CAPTURED:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %{{.*}}*, i8* }>, <{ i8*, i32, i32, i8*, %{{.*}}*, i8* }>* %{{.*}}, i32 0, i32 5
750 // CHECK-COMMON: %[[V3:.*]] = call i8* @llvm.objc.retain(i8* %{{.*}})
751 // CHECK-COMMON: store i8* %[[V3]], i8** %[[BLOCK_CAPTURED]], align 8
752 // CHECK-COMMON: call void @test22_1()
753 // CHECK-UNOPT: call void @llvm.objc.storeStrong(i8** %[[BLOCK_CAPTURED]], i8* null)
754 // CHECK: %[[V15:.*]] = load i8*, i8** %[[BLOCK_CAPTURED]], align 8
755 // CHECK: call void @llvm.objc.release(i8* %[[V15]])
757 id test22(int c, id x) {
758 extern id test22_0(void);
759 extern void test22_1(void);
760 return c ? test22_0() : ({ id (^b)(void) = ^{ return x; }; test22_1(); b(); });
764 -(void)m:(int)i, ...;
767 // CHECK-COMMON-LABEL: define{{.*}} void @test23(
768 // CHECK-COMMON: %[[V9:.*]] = call i8* @llvm.objc.retainBlock(
769 // CHECK-COMMON: %[[V10:.*]] = bitcast i8* %[[V9]] to void ()*
770 // CHECK-COMMON: call void (i8*, i8*, i32, ...) bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, i32, ...)*)(i8* noundef %{{.*}}, i8* noundef %{{.*}}, i32 noundef 123, void ()* noundef %[[V10]])
772 void test23(id x, Test23 *t) {
773 [t m:123, ^{ (void)x; }];
776 // CHECK-COMMON-LABEL: define internal void @"\01+[Test24 m]"(
777 // CHECK-COMMON: %[[BLOCK_DESCRIPTOR:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>* %{{.*}}, i32 0, i32 4
778 // CHECK: store %[[STRUCT_BLOCK_DESCRIPTOR]]* bitcast ({ i64, i64, i8*, i8* }* @[[BLOCK_DESCRIPTOR_TMP10]] to %[[STRUCT_BLOCK_DESCRIPTOR]]*), %[[STRUCT_BLOCK_DESCRIPTOR]]** %[[BLOCK_DESCRIPTOR]],
781 @property (class) void (^block)(void);
785 @implementation Test24
787 self.block = ^{ (void)self; };
791 // CHECK: attributes [[NUW]] = { nounwind }
792 // CHECK-UNOPT: attributes [[NUW]] = { nounwind }