1// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -Wno-objc-root-class -Wno-incompatible-pointer-types -Wno-arc-unsafe-retained-assign -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -O2 -disable-llvm-passes -o - %s | FileCheck %s 2// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -Wno-objc-root-class -Wno-incompatible-pointer-types -Wno-arc-unsafe-retained-assign -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=CHECK-GLOBALS %s 3 4// rdar://13129783. Check both native/non-native arc platforms. Here we check 5// that they treat nonlazybind differently. 6// RUN: %clang_cc1 -fobjc-runtime=macosx-10.6.0 -triple x86_64-apple-darwin10 -Wno-objc-root-class -Wno-incompatible-pointer-types -Wno-arc-unsafe-retained-assign -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=ARC-ALIEN %s 7// RUN: %clang_cc1 -fobjc-runtime=macosx-10.7.0 -triple x86_64-apple-darwin11 -Wno-objc-root-class -Wno-incompatible-pointer-types -Wno-arc-unsafe-retained-assign -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=ARC-NATIVE %s 8 9// ARC-ALIEN: declare extern_weak void @llvm.objc.storeStrong(i8**, i8*) 10// ARC-ALIEN: declare extern_weak i8* @llvm.objc.retain(i8*) 11// ARC-ALIEN: declare extern_weak i8* @llvm.objc.autoreleaseReturnValue(i8*) 12// ARC-ALIEN: declare i8* @objc_msgSend(i8*, i8*, ...) [[NLB:#[0-9]+]] 13// ARC-ALIEN: declare extern_weak void @llvm.objc.release(i8*) 14// ARC-ALIEN: declare extern_weak i8* @llvm.objc.retainAutoreleasedReturnValue(i8*) 15// ARC-ALIEN: declare extern_weak i8* @llvm.objc.initWeak(i8**, i8*) 16// ARC-ALIEN: declare extern_weak i8* @llvm.objc.storeWeak(i8**, i8*) 17// ARC-ALIEN: declare extern_weak i8* @llvm.objc.loadWeakRetained(i8**) 18// ARC-ALIEN: declare extern_weak void @llvm.objc.destroyWeak(i8**) 19// ARC-ALIEN: declare extern_weak i8* @llvm.objc.autorelease(i8*) 20// ARC-ALIEN: declare extern_weak i8* @llvm.objc.retainAutorelease(i8*) 21 22// ARC-NATIVE: declare void @llvm.objc.storeStrong(i8**, i8*) 23// ARC-NATIVE: declare i8* @llvm.objc.retain(i8*) 24// ARC-NATIVE: declare i8* @llvm.objc.autoreleaseReturnValue(i8*) 25// ARC-NATIVE: declare i8* @objc_msgSend(i8*, i8*, ...) [[NLB:#[0-9]+]] 26// ARC-NATIVE: declare void @llvm.objc.release(i8*) 27// ARC-NATIVE: declare i8* @llvm.objc.retainAutoreleasedReturnValue(i8*) 28// ARC-NATIVE: declare i8* @llvm.objc.initWeak(i8**, i8*) 29// ARC-NATIVE: declare i8* @llvm.objc.storeWeak(i8**, i8*) 30// ARC-NATIVE: declare i8* @llvm.objc.loadWeakRetained(i8**) 31// ARC-NATIVE: declare void @llvm.objc.destroyWeak(i8**) 32// ARC-NATIVE: declare i8* @llvm.objc.autorelease(i8*) 33// ARC-NATIVE: declare i8* @llvm.objc.retainAutorelease(i8*) 34 35// CHECK-LABEL: define{{.*}} void @test0 36void test0(id x) { 37 // CHECK: [[X:%.*]] = alloca i8* 38 // CHECK-NEXT: [[PARM:%.*]] = call i8* @llvm.objc.retain(i8* {{.*}}) 39 // CHECK-NEXT: store i8* [[PARM]], i8** [[X]] 40 // CHECK-NEXT: [[TMP:%.*]] = load i8*, i8** [[X]] 41 // CHECK-NEXT: call void @llvm.objc.release(i8* [[TMP]]) 42 // CHECK-NEXT: ret void 43} 44 45// CHECK-LABEL: define{{.*}} i8* @test1(i8* 46id test1(id x) { 47 // CHECK: [[X:%.*]] = alloca i8* 48 // CHECK-NEXT: [[Y:%.*]] = alloca i8* 49 // CHECK-NEXT: [[PARM:%.*]] = call i8* @llvm.objc.retain(i8* {{%.*}}) 50 // CHECK-NEXT: store i8* [[PARM]], i8** [[X]] 51 // CHECK-NEXT: [[YPTR1:%.*]] = bitcast i8** [[Y]] to i8* 52 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[YPTR1]]) 53 // CHECK-NEXT: store i8* null, i8** [[Y]] 54 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]] 55 // CHECK-NEXT: [[RET:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]]) 56 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]] 57 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) 58 // CHECK-NEXT: [[YPTR2:%.*]] = bitcast i8** [[Y]] to i8* 59 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[YPTR2]]) 60 // CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[X]] 61 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) 62 // CHECK-NEXT: [[T1:%.*]] = tail call i8* @llvm.objc.autoreleaseReturnValue(i8* [[RET]]) 63 // CHECK-NEXT: ret i8* [[T1]] 64 id y; 65 return y; 66} 67 68@interface Test2 69+ (void) class_method; 70- (void) inst_method; 71@end 72@implementation Test2 73 74// The self pointer of a class method is not retained. 75// CHECK: define internal void @"\01+[Test2 class_method]" 76// CHECK: alloca 77// CHECK-NEXT: alloca 78// CHECK-NEXT: store 79// CHECK-NEXT: store 80// CHECK-NEXT: ret void 81+ (void) class_method {} 82 83// The self pointer of an instance method is not retained. 84// CHECK: define internal void @"\01-[Test2 inst_method]" 85// CHECK: alloca 86// CHECK-NEXT: alloca 87// CHECK-NEXT: store 88// CHECK-NEXT: store 89// CHECK-NEXT: ret void 90- (void) inst_method {} 91@end 92 93@interface Test3 94+ (id) alloc; 95- (id) initWith: (int) x; 96- (id) copy; 97@end 98 99// CHECK-LABEL: define{{.*}} void @test3_unelided() 100void test3_unelided() { 101 extern void test3_helper(void); 102 103 // CHECK: [[X:%.*]] = alloca [[TEST3:%.*]]* 104 // CHECK-NEXT: [[XPTR1:%.*]] = bitcast [[TEST3]]** [[X]] to i8* 105 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]]) 106 // CHECK-NEXT: store [[TEST3]]* null, [[TEST3]]** [[X]], align 107 Test3 *x; 108 109 // Call to +alloc. 110 // CHECK-NEXT: load {{.*}}, {{.*}}* @"OBJC_CLASSLIST_REFERENCES_ 111 // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 112 // CHECK-NEXT: bitcast 113 // CHECK-NEXT: [[ALLOC:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend 114 // CHECK-NEXT: bitcast 115 // CHECK-NEXT: bitcast 116 // CHECK-NEXT: call void @llvm.objc.release(i8* 117 [Test3 alloc]; 118 119 // CHECK-NEXT: [[T0:%.*]] = load [[TEST3]]*, [[TEST3]]** [[X]] 120 // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 121 // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST3]]* [[T0]] to i8* 122 // CHECK-NEXT: [[COPY:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend {{.*}})(i8* [[T1]], 123 // CHECK-NEXT: call void @llvm.objc.release(i8* [[COPY]]) [[NUW:#[0-9]+]] 124 [x copy]; 125 126 // CHECK-NEXT: [[T0:%.*]] = load [[TEST3]]*, [[TEST3]]** [[X]] 127 // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST3]]* [[T0]] to i8* 128 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) [[NUW]] 129 // CHECK-NEXT: [[XPTR2:%.*]] = bitcast [[TEST3]]** [[X]] to i8* 130 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]]) 131 // CHECK-NEXT: ret void 132} 133 134// CHECK-LABEL: define{{.*}} void @test3() 135void test3() { 136 // CHECK: [[X:%.*]] = alloca i8* 137 // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8* 138 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]]) 139 140 id x = [[Test3 alloc] initWith: 5]; 141 142 // Call to +alloc. 143 // CHECK-NEXT: load {{.*}}, {{.*}}* @"OBJC_CLASSLIST_REFERENCES_ 144 // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 145 // CHECK-NEXT: bitcast 146 // CHECK-NEXT: [[ALLOC:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend 147 // CHECK-NEXT: bitcast 148 149 // Call to -initWith: with elided retain of consumed argument. 150 // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 151 // CHECK-NEXT: bitcast 152 // CHECK-NEXT: [[INIT:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i32)*)(i8* 153 // CHECK-NEXT: bitcast 154 // CHECK-NEXT: [[INIT:%.*]] = bitcast 155 // Assignment for initialization, retention elided. 156 // CHECK-NEXT: store i8* [[INIT]], i8** [[X]] 157 158 // Call to -copy. 159 // CHECK-NEXT: [[V:%.*]] = load i8*, i8** [[X]] 160 // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 161 // CHECK-NEXT: [[COPY:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend {{.*}})(i8* [[V]], 162 163 // Assignment to x. 164 // CHECK-NEXT: [[TMP:%.*]] = load i8*, i8** [[X]] 165 // CHECK-NEXT: store i8* [[COPY]], i8** [[X]] 166 // CHECK-NEXT: call void @llvm.objc.release(i8* [[TMP]]) [[NUW]] 167 168 x = [x copy]; 169 170 // Cleanup for x. 171 // CHECK-NEXT: [[TMP:%.*]] = load i8*, i8** [[X]] 172 // CHECK-NEXT: call void @llvm.objc.release(i8* [[TMP]]) [[NUW]] 173 // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8* 174 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]]) 175 // CHECK-NEXT: ret void 176} 177 178// CHECK-LABEL: define{{.*}} i8* @test4() 179id test4() { 180 // Call to +alloc. 181 // CHECK: load {{.*}}, {{.*}}* @"OBJC_CLASSLIST_REFERENCES_ 182 // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 183 // CHECK-NEXT: bitcast 184 // CHECK-NEXT: [[ALLOC:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend 185 // CHECK-NEXT: [[ALLOC:%.*]] = bitcast 186 187 // Call to -initWith: with elided retain of consumed argument. 188 // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 189 // CHECK-NEXT: [[ALLOC:%.*]] = bitcast 190 // CHECK-NEXT: [[INIT:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i32)*)(i8* [[ALLOC]], 191 192 // Initialization of return value, occurring within full-expression. 193 // Retain/release elided. 194 // CHECK-NEXT: bitcast 195 // CHECK-NEXT: [[INIT:%.*]] = bitcast 196 // CHECK-NEXT: [[RET:%.*]] = tail call i8* @llvm.objc.autoreleaseReturnValue(i8* [[INIT]]) 197 198 // CHECK-NEXT: ret i8* [[RET]] 199 200 return [[Test3 alloc] initWith: 6]; 201} 202 203@interface Test5 { 204@public 205 id var; 206} 207@end 208 209// CHECK-LABEL: define{{.*}} void @test5 210void test5(Test5 *x, id y) { 211 // Prologue. 212 // CHECK: [[X:%.*]] = alloca [[TEST5:%.*]]*, 213 // CHECK-NEXT: [[Y:%.*]] = alloca i8* 214 // CHECK-NEXT: bitcast [[TEST5]]* {{%.*}} to i8* 215 // CHECK-NEXT: call i8* @llvm.objc.retain 216 // CHECK-NEXT: [[PARMX:%.*]] = bitcast i8* {{%.*}} to [[TEST5]]* 217 // CHECK-NEXT: store [[TEST5]]* [[PARMX]], [[TEST5]]** [[X]] 218 // CHECK-NEXT: call i8* @llvm.objc.retain 219 // CHECK-NEXT: store 220 221 // CHECK-NEXT: load [[TEST5]]*, [[TEST5]]** [[X]] 222 // CHECK-NEXT: load i64, i64* @"OBJC_IVAR_$_Test5.var" 223 // CHECK-NEXT: bitcast 224 // CHECK-NEXT: getelementptr 225 // CHECK-NEXT: [[VAR:%.*]] = bitcast 226 // CHECK-NEXT: [[TMP:%.*]] = load i8*, i8** [[VAR]] 227 // CHECK-NEXT: store i8* null, i8** [[VAR]] 228 // CHECK-NEXT: call void @llvm.objc.release(i8* [[TMP]]) [[NUW]] 229 x->var = 0; 230 231 // CHECK-NEXT: [[YVAL:%.*]] = load i8*, i8** [[Y]] 232 // CHECK-NEXT: load [[TEST5]]*, [[TEST5]]** [[X]] 233 // CHECK-NEXT: load i64, i64* @"OBJC_IVAR_$_Test5.var" 234 // CHECK-NEXT: bitcast 235 // CHECK-NEXT: getelementptr 236 // CHECK-NEXT: [[VAR:%.*]] = bitcast 237 // CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.objc.retain(i8* [[YVAL]]) [[NUW]] 238 // CHECK-NEXT: [[TMP:%.*]] = load i8*, i8** [[VAR]] 239 // CHECK-NEXT: store i8* [[T0]], i8** [[VAR]] 240 // CHECK-NEXT: call void @llvm.objc.release(i8* [[TMP]]) [[NUW]] 241 x->var = y; 242 243 // Epilogue. 244 // CHECK-NEXT: [[TMP:%.*]] = load i8*, i8** [[Y]] 245 // CHECK-NEXT: call void @llvm.objc.release(i8* [[TMP]]) [[NUW]] 246 // CHECK-NEXT: [[T0:%.*]] = load [[TEST5]]*, [[TEST5]]** [[X]] 247 // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST5]]* [[T0]] to i8* 248 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) [[NUW]] 249 // CHECK-NEXT: ret void 250} 251 252id test6_helper(void) __attribute__((ns_returns_retained)); 253// CHECK-LABEL: define{{.*}} void @test6() 254void test6() { 255 // CHECK: [[X:%.*]] = alloca i8* 256 // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8* 257 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]]) 258 // CHECK-NEXT: [[CALL:%.*]] = call i8* @test6_helper() 259 // CHECK-NEXT: store i8* [[CALL]], i8** [[X]] 260 // CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[X]] 261 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) [[NUW]], !clang.imprecise_release 262 // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8* 263 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]]) 264 // CHECK-NEXT: ret void 265 id x = test6_helper(); 266} 267 268void test7_helper(id __attribute__((ns_consumed))); 269// CHECK-LABEL: define{{.*}} void @test7() 270void test7() { 271 // CHECK: [[X:%.*]] = alloca i8* 272 // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8* 273 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]]) 274 // CHECK-NEXT: store i8* null, i8** [[X]] 275 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]] 276 // CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]]) [[NUW]] 277 // CHECK-NEXT: call void @test7_helper(i8* [[T1]]) 278 // CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[X]] 279 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) [[NUW]], !clang.imprecise_release 280 // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8* 281 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]]) 282 // CHECK-NEXT: ret void 283 id x; 284 test7_helper(x); 285} 286 287id test8_helper(void) __attribute__((ns_returns_retained)); 288void test8() { 289 __unsafe_unretained id x = test8_helper(); 290 // CHECK: [[X:%.*]] = alloca i8* 291 // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8* 292 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]]) 293 // CHECK-NEXT: [[T0:%.*]] = call i8* @test8_helper() 294 // CHECK-NEXT: store i8* [[T0]], i8** [[X]] 295 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]], !clang.imprecise_release 296 // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8* 297 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]]) 298 // CHECK-NEXT: ret void 299} 300 301@interface Test10 302@property (retain) Test10 *me; 303@end 304void test10() { 305 Test10 *x; 306 id y = x.me.me; 307 308 // CHECK-LABEL: define{{.*}} void @test10() 309 // CHECK: [[X:%.*]] = alloca [[TEST10:%.*]]*, align 310 // CHECK-NEXT: [[Y:%.*]] = alloca i8*, align 311 // CHECK-NEXT: [[XPTR1:%.*]] = bitcast [[TEST10]]** [[X]] to i8* 312 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]]) 313 // CHECK-NEXT: store [[TEST10]]* null, [[TEST10]]** [[X]] 314 // CHECK-NEXT: [[YPTR1:%.*]] = bitcast i8** [[Y]] to i8* 315 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[YPTR1]]) 316 // CHECK-NEXT: load [[TEST10]]*, [[TEST10]]** [[X]], align 317 // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_{{[0-9]*}} 318 // CHECK-NEXT: bitcast 319 // CHECK-NEXT: [[T0:%.*]] = call [[TEST10]]* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend 320 // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST10]]* [[T0]] to i8* 321 // CHECK-NEXT: [[T2:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T1]]) 322 // CHECK-NEXT: [[V:%.*]] = bitcast i8* [[T2]] to [[TEST10]]* 323 // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_{{[0-9]*}} 324 // CHECK-NEXT: bitcast 325 // CHECK-NEXT: [[T0:%.*]] = call [[TEST10]]* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend 326 // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST10]]* [[T0]] to i8* 327 // CHECK-NEXT: [[T2:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T1]]) 328 // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST10]]* 329 // CHECK-NEXT: [[T4:%.*]] = bitcast [[TEST10]]* [[T3]] to i8* 330 // CHECK-NEXT: store i8* [[T4]], i8** [[Y]] 331 // CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST10]]* [[V]] to i8* 332 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) 333 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]] 334 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) 335 // CHECK-NEXT: [[YPTR2:%.*]] = bitcast i8** [[Y]] to i8* 336 // CHECK-NEXT: void @llvm.lifetime.end.p0i8(i64 8, i8* [[YPTR2]]) 337 // CHECK-NEXT: [[T0:%.*]] = load [[TEST10]]*, [[TEST10]]** [[X]] 338 // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST10]]* [[T0]] to i8* 339 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) 340 // CHECK-NEXT: [[XPTR2:%.*]] = bitcast [[TEST10]]** [[X]] to i8* 341 // CHECK-NEXT: void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]]) 342 // CHECK-NEXT: ret void 343} 344 345void test11(id (*f)(void) __attribute__((ns_returns_retained))) { 346 // CHECK-LABEL: define{{.*}} void @test11( 347 // CHECK: [[F:%.*]] = alloca i8* ()*, align 348 // CHECK-NEXT: [[X:%.*]] = alloca i8*, align 349 // CHECK-NEXT: store i8* ()* {{%.*}}, i8* ()** [[F]], align 350 // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8* 351 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]]) 352 // CHECK-NEXT: [[T0:%.*]] = load i8* ()*, i8* ()** [[F]], align 353 // CHECK-NEXT: [[T1:%.*]] = call i8* [[T0]]() 354 // CHECK-NEXT: store i8* [[T1]], i8** [[X]], align 355 // CHECK-NEXT: [[T3:%.*]] = load i8*, i8** [[X]] 356 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T3]]) [[NUW]], !clang.imprecise_release 357 // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8* 358 // CHECK-NEXT: void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]]) 359 // CHECK-NEXT: ret void 360 id x = f(); 361} 362 363void test12(void) { 364 extern id test12_helper(void); 365 366 // CHECK-LABEL: define{{.*}} void @test12() 367 // CHECK: [[X:%.*]] = alloca i8*, align 368 // CHECK-NEXT: [[Y:%.*]] = alloca i8*, align 369 370 __weak id x = test12_helper(); 371 // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8* 372 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]]) 373 // CHECK-NEXT: [[T0:%.*]] = call i8* @test12_helper() 374 // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]]) 375 // CHECK-NEXT: call i8* @llvm.objc.initWeak(i8** [[X]], i8* [[T1]]) 376 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) 377 378 x = test12_helper(); 379 // CHECK-NEXT: [[T0:%.*]] = call i8* @test12_helper() 380 // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]]) 381 // CHECK-NEXT: call i8* @llvm.objc.storeWeak(i8** [[X]], i8* [[T1]]) 382 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) 383 384 id y = x; 385 // CHECK-NEXT: [[YPTR1:%.*]] = bitcast i8** [[Y]] to i8* 386 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[YPTR1]]) 387 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.loadWeakRetained(i8** [[X]]) 388 // CHECK-NEXT: store i8* [[T2]], i8** [[Y]], align 389 390 // CHECK-NEXT: [[T4:%.*]] = load i8*, i8** [[Y]] 391 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T4]]) [[NUW]], !clang.imprecise_release 392 // CHECK-NEXT: [[YPTR2:%.*]] = bitcast i8** [[Y]] to i8* 393 // CHECK-NEXT: void @llvm.lifetime.end.p0i8(i64 8, i8* [[YPTR2]]) 394 // CHECK-NEXT: call void @llvm.objc.destroyWeak(i8** [[X]]) 395 // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8* 396 // CHECK-NEXT: void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]]) 397 // CHECK: ret void 398} 399 400// Indirect consuming calls. 401void test13(void) { 402 // CHECK-LABEL: define{{.*}} void @test13() 403 // CHECK: [[X:%.*]] = alloca i8*, align 404 // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8* 405 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]]) 406 // CHECK-NEXT: store i8* null, i8** [[X]], align 407 id x; 408 409 typedef void fnty(id __attribute__((ns_consumed))); 410 extern fnty *test13_func; 411 // CHECK-NEXT: [[FN:%.*]] = load void (i8*)*, void (i8*)** @test13_func, align 412 // CHECK-NEXT: [[X_VAL:%.*]] = load i8*, i8** [[X]], align 413 // CHECK-NEXT: [[X_TMP:%.*]] = call i8* @llvm.objc.retain(i8* [[X_VAL]]) [[NUW]] 414 // CHECK-NEXT: call void [[FN]](i8* [[X_TMP]]) 415 test13_func(x); 416 417 extern fnty ^test13_block; 418 // CHECK-NEXT: [[TMP:%.*]] = load void (i8*)*, void (i8*)** @test13_block, align 419 // CHECK-NEXT: [[BLOCK:%.*]] = bitcast void (i8*)* [[TMP]] to [[BLOCKTY:%.*]]* 420 // CHECK-NEXT: [[BLOCK_FN_PTR:%.*]] = getelementptr inbounds [[BLOCKTY]], [[BLOCKTY]]* [[BLOCK]], i32 0, i32 3 421 // CHECK-NEXT: [[BLOCK_OPAQUE:%.*]] = bitcast [[BLOCKTY]]* [[BLOCK]] to i8* 422 // CHECK-NEXT: [[X_VAL:%.*]] = load i8*, i8** [[X]], align 423 // CHECK-NEXT: [[X_TMP:%.*]] = call i8* @llvm.objc.retain(i8* [[X_VAL]]) [[NUW]] 424 // CHECK-NEXT: [[BLOCK_FN_TMP:%.*]] = load i8*, i8** [[BLOCK_FN_PTR]] 425 // CHECK-NEXT: [[BLOCK_FN:%.*]] = bitcast i8* [[BLOCK_FN_TMP]] to void (i8*, i8*)* 426 // CHECK-NEXT: call void [[BLOCK_FN]](i8* [[BLOCK_OPAQUE]], i8* [[X_TMP]]) 427 test13_block(x); 428 429 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]] 430 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]] 431 // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8* 432 // CHECK-NEXT: void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]]) 433 // CHECK-NEXT: ret void 434} 435 436@interface Test16_super @end 437@interface Test16 : Test16_super { 438 id z; 439} 440@property (assign) int x; 441@property (retain) id y; 442- (void) dealloc; 443@end 444@implementation Test16 445@synthesize x; 446@synthesize y; 447- (void) dealloc { 448 // CHECK: define internal void @"\01-[Test16 dealloc]"( 449 // CHECK: [[SELF:%.*]] = alloca [[TEST16:%.*]]*, align 450 // CHECK-NEXT: [[CMD:%.*]] = alloca i8*, align 451 // CHECK-NEXT: alloca 452 // CHECK-NEXT: store [[TEST16]]* {{%.*}}, [[TEST16]]** [[SELF]], align 453 // CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]] 454 // CHECK-NEXT: [[BASE:%.*]] = load [[TEST16]]*, [[TEST16]]** [[SELF]] 455 456 // Call super. 457 // CHECK-NEXT: [[BASE2:%.*]] = bitcast [[TEST16]]* [[BASE]] to i8* 458 // CHECK-NEXT: [[T0:%.*]] = getelementptr 459 // CHECK-NEXT: store i8* [[BASE2]], i8** [[T0]] 460 // CHECK-NEXT: load {{%.*}}*, {{%.*}}** @"OBJC_CLASSLIST_SUP_REFS_$_ 461 // CHECK-NEXT: bitcast 462 // CHECK-NEXT: getelementptr 463 // CHECK-NEXT: store 464 // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 465 // CHECK-NEXT: call void bitcast (i8* ({{.*}})* @objc_msgSendSuper2 to void ( 466 // CHECK-NEXT: ret void 467} 468 469// .cxx_destruct 470 // CHECK: define internal void @"\01-[Test16 .cxx_destruct]"( 471 // CHECK: [[SELF:%.*]] = alloca [[TEST16:%.*]]*, align 472 // CHECK-NEXT: [[CMD:%.*]] = alloca i8*, align 473 // CHECK-NEXT: store [[TEST16]]* {{%.*}}, [[TEST16]]** [[SELF]], align 474 // CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]] 475 // CHECK-NEXT: [[BASE:%.*]] = load [[TEST16]]*, [[TEST16]]** [[SELF]] 476 477 // Destroy y. 478 // CHECK-NEXT: [[Y_OFF:%.*]] = load i64, i64* @"OBJC_IVAR_$_Test16.y" 479 // CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST16]]* [[BASE]] to i8* 480 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 [[Y_OFF]] 481 // CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to i8** 482 // CHECK-NEXT: call void @llvm.objc.storeStrong(i8** [[T2]], i8* null) [[NUW]] 483 484 // Destroy z. 485 // CHECK-NEXT: [[Z_OFF:%.*]] = load i64, i64* @"OBJC_IVAR_$_Test16.z" 486 // CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST16]]* [[BASE]] to i8* 487 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 [[Z_OFF]] 488 // CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to i8** 489 // CHECK-NEXT: call void @llvm.objc.storeStrong(i8** [[T2]], i8* null) [[NUW]] 490 491 // CHECK-NEXT: ret void 492 493@end 494 495// This shouldn't crash. 496@interface Test17A 497@property (assign) int x; 498@end 499@interface Test17B : Test17A 500@end 501@implementation Test17B 502- (int) x { return super.x + 1; } 503@end 504 505void test19() { 506 // CHECK-LABEL: define{{.*}} void @test19() 507 // CHECK: [[X:%.*]] = alloca [5 x i8*], align 16 508 // CHECK: call void @llvm.lifetime.start 509 // CHECK-NEXT: [[T0:%.*]] = bitcast [5 x i8*]* [[X]] to i8* 510 // CHECK: call void @llvm.memset.p0i8.i64(i8* align 16 [[T0]], i8 0, i64 40, i1 false) 511 id x[5]; 512 513 extern id test19_helper(void); 514 x[2] = test19_helper(); 515 516 // CHECK-NEXT: [[CALL:%.*]] = call i8* @test19_helper() 517 // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[CALL]]) [[NUW]] 518 // CHECK-NEXT: [[SLOT:%.*]] = getelementptr inbounds [5 x i8*], [5 x i8*]* [[X]], i64 0, i64 2 519 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[SLOT]] 520 // CHECK-NEXT: store i8* [[T1]], i8** [[SLOT]] 521 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]] 522 523 // CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [5 x i8*], [5 x i8*]* [[X]], i32 0, i32 0 524 // CHECK-NEXT: [[END:%.*]] = getelementptr inbounds i8*, i8** [[BEGIN]], i64 5 525 // CHECK-NEXT: br label 526 527 // CHECK: [[AFTER:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[NEXT:%.*]], {{%.*}} ] 528 // CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds i8*, i8** [[AFTER]], i64 -1 529 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[CUR]] 530 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]], !clang.imprecise_release 531 // CHECK-NEXT: [[EQ:%.*]] = icmp eq i8** [[CUR]], [[BEGIN]] 532 // CHECK-NEXT: br i1 [[EQ]], 533 534 // CHECK: ret void 535} 536 537void test20(unsigned n) { 538 // CHECK-LABEL: define{{.*}} void @test20 539 // CHECK: [[N:%.*]] = alloca i32, align 4 540 // CHECK-NEXT: [[SAVED_STACK:%.*]] = alloca i8* 541 // CHECK-NEXT: [[VLA_EXPR:%.*]] = alloca i64, align 8 542 // CHECK-NEXT: store i32 {{%.*}}, i32* [[N]], align 4 543 544 id x[n]; 545 546 // Capture the VLA size. 547 // CHECK-NEXT: [[T0:%.*]] = load i32, i32* [[N]], align 4 548 // CHECK-NEXT: [[DIM:%.*]] = zext i32 [[T0]] to i64 549 550 // Save the stack pointer. 551 // CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.stacksave() 552 // CHECK-NEXT: store i8* [[T0]], i8** [[SAVED_STACK]] 553 554 // Allocate the VLA. 555 // CHECK-NEXT: [[VLA:%.*]] = alloca i8*, i64 [[DIM]], align 16 556 557 // Store the VLA #elements expression. 558 // CHECK-NEXT: store i64 [[DIM]], i64* [[VLA_EXPR]], align 8 559 560 // Zero-initialize. 561 // CHECK-NEXT: [[T0:%.*]] = bitcast i8** [[VLA]] to i8* 562 // CHECK-NEXT: [[T1:%.*]] = mul nuw i64 [[DIM]], 8 563 // CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 16 [[T0]], i8 0, i64 [[T1]], i1 false) 564 565 // Destroy. 566 // CHECK-NEXT: [[END:%.*]] = getelementptr inbounds i8*, i8** [[VLA]], i64 [[DIM]] 567 // CHECK-NEXT: [[EMPTY:%.*]] = icmp eq i8** [[VLA]], [[END]] 568 // CHECK-NEXT: br i1 [[EMPTY]] 569 570 // CHECK: [[AFTER:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ] 571 // CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds i8*, i8** [[AFTER]], i64 -1 572 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[CUR]] 573 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]], !clang.imprecise_release 574 // CHECK-NEXT: [[EQ:%.*]] = icmp eq i8** [[CUR]], [[VLA]] 575 // CHECK-NEXT: br i1 [[EQ]], 576 577 // CHECK: [[T0:%.*]] = load i8*, i8** [[SAVED_STACK]] 578 // CHECK-NEXT: call void @llvm.stackrestore(i8* [[T0]]) 579 // CHECK-NEXT: ret void 580} 581 582void test21(unsigned n) { 583 // CHECK-LABEL: define{{.*}} void @test21 584 // CHECK: [[N:%.*]] = alloca i32, align 4 585 // CHECK-NEXT: [[SAVED_STACK:%.*]] = alloca i8* 586 // CHECK-NEXT: [[VLA_EXPR:%.*]] = alloca i64, align 8 587 // CHECK-NEXT: store i32 {{%.*}}, i32* [[N]], align 4 588 589 id x[2][n][3]; 590 591 // Capture the VLA size. 592 // CHECK-NEXT: [[T0:%.*]] = load i32, i32* [[N]], align 4 593 // CHECK-NEXT: [[DIM:%.*]] = zext i32 [[T0]] to i64 594 595 // CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.stacksave() 596 // CHECK-NEXT: store i8* [[T0]], i8** [[SAVED_STACK]] 597 598 599 // Allocate the VLA. 600 // CHECK-NEXT: [[T0:%.*]] = mul nuw i64 2, [[DIM]] 601 // CHECK-NEXT: [[VLA:%.*]] = alloca [3 x i8*], i64 [[T0]], align 16 602 603 // Store the VLA #elements expression. 604 // CHECK-NEXT: store i64 [[DIM]], i64* [[VLA_EXPR]], align 8 605 606 // Zero-initialize. 607 // CHECK-NEXT: [[T0:%.*]] = bitcast [3 x i8*]* [[VLA]] to i8* 608 // CHECK-NEXT: [[T1:%.*]] = mul nuw i64 2, [[DIM]] 609 // CHECK-NEXT: [[T2:%.*]] = mul nuw i64 [[T1]], 24 610 // CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 16 [[T0]], i8 0, i64 [[T2]], i1 false) 611 612 // Destroy. 613 // CHECK-NEXT: [[T0:%.*]] = mul nuw i64 2, [[DIM]] 614 // CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [3 x i8*], [3 x i8*]* [[VLA]], i32 0, i32 0 615 // CHECK-NEXT: [[T1:%.*]] = mul nuw i64 [[T0]], 3 616 // CHECK-NEXT: [[END:%.*]] = getelementptr inbounds i8*, i8** [[BEGIN]], i64 [[T1]] 617 // CHECK-NEXT: [[EMPTY:%.*]] = icmp eq i8** [[BEGIN]], [[END]] 618 // CHECK-NEXT: br i1 [[EMPTY]] 619 620 // CHECK: [[AFTER:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ] 621 // CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds i8*, i8** [[AFTER]], i64 -1 622 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[CUR]] 623 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]], !clang.imprecise_release 624 // CHECK-NEXT: [[EQ:%.*]] = icmp eq i8** [[CUR]], [[BEGIN]] 625 // CHECK-NEXT: br i1 [[EQ]], 626 627 // CHECK: [[T0:%.*]] = load i8*, i8** [[SAVED_STACK]] 628 // CHECK-NEXT: call void @llvm.stackrestore(i8* [[T0]]) 629 // CHECK-NEXT: ret void 630} 631 632// rdar://problem/8922540 633// Note that we no longer emit .release_ivars flags. 634// rdar://problem/12492434 635// Note that we set the flag saying that we need destruction *and* 636// the flag saying that we don't also need construction. 637// CHECK-GLOBALS: @"_OBJC_CLASS_RO_$_Test23" = internal global [[RO_T:%.*]] { i32 390, 638@interface Test23 { id x; } @end 639@implementation Test23 @end 640 641// CHECK-GLOBALS: @"_OBJC_CLASS_RO_$_Test24" = internal global [[RO_T:%.*]] { i32 130, 642@interface Test24 {} @end 643@implementation Test24 @end 644 645// rdar://problem/8941012 646@interface Test26 { id x[4]; } @end 647@implementation Test26 @end 648// CHECK: define internal void @"\01-[Test26 .cxx_destruct]"( 649// CHECK: [[SELF:%.*]] = load [[TEST26:%.*]]*, [[TEST26:%.*]]** 650// CHECK-NEXT: [[OFFSET:%.*]] = load i64, i64* @"OBJC_IVAR_$_Test26.x" 651// CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST26]]* [[SELF]] to i8* 652// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 [[OFFSET]] 653// CHECK-NEXT: [[X:%.*]] = bitcast i8* [[T1]] to [4 x i8*]* 654// CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [4 x i8*], [4 x i8*]* [[X]], i32 0, i32 0 655// CHECK-NEXT: [[END:%.*]] = getelementptr inbounds i8*, i8** [[BEGIN]], i64 4 656// CHECK-NEXT: br label 657// CHECK: [[PAST:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ] 658// CHECK-NEXT: [[CUR]] = getelementptr inbounds i8*, i8** [[PAST]], i64 -1 659// CHECK-NEXT: call void @llvm.objc.storeStrong(i8** [[CUR]], i8* null) 660// CHECK-NEXT: [[ISDONE:%.*]] = icmp eq i8** [[CUR]], [[BEGIN]] 661// CHECK-NEXT: br i1 [[ISDONE]], 662// CHECK: ret void 663 664// Check that 'init' retains self. 665@interface Test27 666- (id) init; 667@end 668@implementation Test27 669- (id) init { return self; } 670// CHECK: define internal i8* @"\01-[Test27 init]" 671// CHECK: [[SELF:%.*]] = alloca [[TEST27:%.*]]*, 672// CHECK-NEXT: [[CMD:%.*]] = alloca i8*, 673// CHECK-NEXT: store [[TEST27]]* {{%.*}}, [[TEST27]]** [[SELF]] 674// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]] 675// CHECK-NEXT: [[T0:%.*]] = load [[TEST27]]*, [[TEST27]]** [[SELF]] 676// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST27]]* [[T0]] to i8* 677// CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]]) 678// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST27]]* 679// CHECK-NEXT: [[RET:%.*]] = bitcast [[TEST27]]* [[T3]] to i8* 680// CHECK-NEXT: [[T0:%.*]] = load [[TEST27]]*, [[TEST27]]** [[SELF]] 681// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST27]]* [[T0]] to i8* 682// CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) 683// CHECK-NEXT: ret i8* [[RET]] 684 685@end 686 687// rdar://problem/8087194 688@interface Test28 689@property (copy) id prop; 690@end 691@implementation Test28 692@synthesize prop; 693@end 694// CHECK: define internal void @"\01-[Test28 .cxx_destruct]" 695// CHECK: [[SELF:%.*]] = load [[TEST28:%.*]]*, [[TEST28:%.*]]** 696// CHECK-NEXT: [[OFFSET:%.*]] = load i64, i64* @"OBJC_IVAR_$_Test28.prop" 697// CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST28]]* [[SELF]] to i8* 698// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 [[OFFSET]] 699// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to i8** 700// CHECK-NEXT: call void @llvm.objc.storeStrong(i8** [[T2]], i8* null) 701// CHECK-NEXT: ret void 702 703@interface Test29_super 704- (id) initWithAllocator: (id) allocator; 705@end 706@interface Test29 : Test29_super 707- (id) init; 708- (id) initWithAllocator: (id) allocator; 709@end 710@implementation Test29 711static id _test29_allocator = 0; 712- (id) init { 713// CHECK: define internal i8* @"\01-[Test29 init]"([[TEST29:%[^*]*]]* {{%.*}}, 714// CHECK: [[SELF:%.*]] = alloca [[TEST29]]*, align 8 715// CHECK-NEXT: [[CMD:%.*]] = alloca i8*, align 8 716// CHECK-NEXT: store [[TEST29]]* {{%.*}}, [[TEST29]]** [[SELF]] 717// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]] 718 719// Evaluate arguments. Note that the send argument is evaluated 720// before the zeroing of self. 721// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]*, [[TEST29]]** [[SELF]], align 8 722// CHECK-NEXT: [[T1:%.*]] = load i8*, i8** @_test29_allocator, align 8 723 724// Implicit null of 'self', i.e. direct transfer of ownership. 725// CHECK-NEXT: store [[TEST29]]* null, [[TEST29]]** [[SELF]] 726 727// Actual message send. 728// CHECK-NEXT: [[T2:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 729// CHECK-NEXT: [[T3:%.*]] = bitcast [[TEST29]]* [[T0]] to i8* 730// CHECK-NEXT: [[CALL:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i8*)*)(i8* [[T3]], i8* [[T2]], i8* [[T1]]) 731 732// Implicit write of result back into 'self'. This is not supposed to 733// be detectable because we're supposed to ban accesses to the old 734// self value past the delegate init call. 735// CHECK-NEXT: [[T0:%.*]] = bitcast i8* [[CALL]] to [[TEST29]]* 736// CHECK-NEXT: store [[TEST29]]* [[T0]], [[TEST29]]** [[SELF]] 737 738// Return statement. 739// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[CALL]] 740// CHECK-NEXT: [[CALL:%.*]] = bitcast 741// CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.objc.retain(i8* [[CALL]]) [[NUW]] 742// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[TEST29]]* 743// CHECK-NEXT: [[RET:%.*]] = bitcast [[TEST29]]* [[T1]] to i8* 744 745// Cleanup. 746// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]*, [[TEST29]]** [[SELF]] 747// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST29]]* [[T0]] to i8* 748// CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) [[NUW]], !clang.imprecise_release 749 750// Return. 751// CHECK-NEXT: ret i8* [[RET]] 752 return [self initWithAllocator: _test29_allocator]; 753} 754- (id) initWithAllocator: (id) allocator { 755// CHECK: define internal i8* @"\01-[Test29 initWithAllocator:]"( 756// CHECK: [[SELF:%.*]] = alloca [[TEST29]]*, align 8 757// CHECK-NEXT: [[CMD:%.*]] = alloca i8*, align 8 758// CHECK-NEXT: [[ALLOCATOR:%.*]] = alloca i8*, align 8 759// CHECK-NEXT: alloca 760// CHECK-NEXT: store [[TEST29]]* {{%.*}}, [[TEST29]]** [[SELF]] 761// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]] 762// CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.objc.retain(i8* {{%.*}}) 763// CHECK-NEXT: store i8* [[T0]], i8** [[ALLOCATOR]] 764 765// Evaluate arguments. Note that the send argument is evaluated 766// before the zeroing of self. 767// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]*, [[TEST29]]** [[SELF]] 768// CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[ALLOCATOR]], align 8 769 770// Implicit null of 'self', i.e. direct transfer of ownership. 771// CHECK-NEXT: store [[TEST29]]* null, [[TEST29]]** [[SELF]] 772 773// Actual message send. 774// CHECK: [[CALL:%.*]] = call {{.*}} @objc_msgSendSuper2 775 776// Implicit write of result back into 'self'. This is not supposed to 777// be detectable because we're supposed to ban accesses to the old 778// self value past the delegate init call. 779// CHECK-NEXT: [[T0:%.*]] = bitcast i8* [[CALL]] to [[TEST29]]* 780// CHECK-NEXT: store [[TEST29]]* [[T0]], [[TEST29]]** [[SELF]] 781 782// Assignment. 783// CHECK-NEXT: [[T0:%.*]] = bitcast i8* [[CALL]] to [[TEST29]]* 784// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST29]]* [[T0]] to i8* 785// CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]]) [[NUW]] 786// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST29]]* 787// CHECK-NEXT: [[T4:%.*]] = load [[TEST29]]*, [[TEST29]]** [[SELF]], align 788// CHECK-NEXT: store [[TEST29]]* [[T3]], [[TEST29]]** [[SELF]], align 789// CHECK-NEXT: [[T5:%.*]] = bitcast [[TEST29]]* [[T4]] to i8* 790// CHECK-NEXT: call void @llvm.objc.release(i8* [[T5]]) 791 792// Return statement. 793// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]*, [[TEST29]]** [[SELF]] 794// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST29]]* [[T0]] to i8* 795// CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]]) [[NUW]] 796// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[TEST29]]* 797// CHECK-NEXT: [[RET:%.*]] = bitcast [[TEST29]]* [[T1]] to i8* 798 799// Cleanup. 800// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[ALLOCATOR]] 801// CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]], !clang.imprecise_release 802 803// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]*, [[TEST29]]** [[SELF]] 804// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST29]]* [[T0]] to i8* 805// CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) [[NUW]], !clang.imprecise_release 806 807// Return. 808// CHECK-NEXT: ret i8* [[RET]] 809 self = [super initWithAllocator: allocator]; 810 return self; 811} 812@end 813 814typedef struct Test30_helper Test30_helper; 815@interface Test30 816- (id) init; 817- (Test30_helper*) initHelper; 818@end 819@implementation Test30 { 820char *helper; 821} 822- (id) init { 823// CHECK: define internal i8* @"\01-[Test30 init]"([[TEST30:%[^*]*]]* {{%.*}}, 824// CHECK: [[RET:%.*]] = alloca [[TEST30]]* 825// CHECK-NEXT: alloca i8* 826// CHECK-NEXT: store [[TEST30]]* {{%.*}}, [[TEST30]]** [[SELF]] 827// CHECK-NEXT: store 828 829// Call. 830// CHECK-NEXT: [[T0:%.*]] = load [[TEST30]]*, [[TEST30]]** [[SELF]] 831// CHECK-NEXT: [[T1:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 832// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST30]]* [[T0]] to i8* 833// CHECK-NEXT: [[CALL:%.*]] = call [[TEST30_HELPER:%.*]]* bitcast {{.*}} @objc_msgSend {{.*}}(i8* [[T2]], i8* [[T1]]) 834 835// Assignment. 836// CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST30_HELPER]]* [[CALL]] to i8* 837// CHECK-NEXT: [[T1:%.*]] = load [[TEST30]]*, [[TEST30]]** [[SELF]] 838// CHECK-NEXT: [[IVAR:%.*]] = load i64, i64* @"OBJC_IVAR_$_Test30.helper" 839// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST30]]* [[T1]] to i8* 840// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8, i8* [[T2]], i64 [[IVAR]] 841// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8** 842// CHECK-NEXT#: [[T5:%.*]] = load i8*, i8** [[T4]] 843// CHECK-NEXT#: [[T6:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]]) 844// CHECK-NEXT#: call void @llvm.objc.release(i8* [[T5]]) 845// CHECK-NEXT: store i8* [[T0]], i8** [[T4]] 846 847// Return. 848// CHECK-NEXT: [[T0:%.*]] = load [[TEST30]]*, [[TEST30]]** [[SELF]] 849// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST30]]* [[T0]] to i8* 850// CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]]) 851// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[TEST30]]* 852// CHECK-NEXT: [[RET:%.*]] = bitcast [[TEST30]]* [[T1]] to i8* 853 854// Cleanup. 855// CHECK-NEXT: [[T0:%.*]] = load [[TEST30]]*, [[TEST30]]** [[SELF]] 856// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST30]]* [[T0]] to i8* 857// CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) 858 859// Epilogue. 860// CHECK-NEXT: ret i8* [[RET]] 861 self->helper = [self initHelper]; 862 return self; 863} 864- (Test30_helper*) initHelper { 865// CHECK: define internal [[TEST30_HELPER]]* @"\01-[Test30 initHelper]"( 866// CHECK: alloca 867// CHECK-NEXT: alloca 868// CHECK-NEXT: store 869// CHECK-NEXT: store 870// CHECK-NEXT: ret [[TEST30_HELPER]]* null 871 return 0; 872} 873 874@end 875 876__attribute__((ns_returns_retained)) id test32(void) { 877// CHECK-LABEL: define{{.*}} i8* @test32() 878// CHECK: [[CALL:%.*]] = call i8* @test32_helper() 879// CHECK-NEXT: [[T0:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[CALL]]) 880// CHECK-NEXT: ret i8* [[T0]] 881 extern id test32_helper(void); 882 return test32_helper(); 883} 884 885@class Test33_a; 886@interface Test33 887- (void) give: (Test33_a **) x; 888- (void) take: (Test33_a **) x; 889- (void) giveStrong: (out __strong Test33_a **) x; 890- (void) takeStrong: (inout __strong Test33_a **) x; 891- (void) giveOut: (out Test33_a **) x; 892@end 893void test33(Test33 *ptr) { 894 Test33_a *a; 895 [ptr give: &a]; 896 [ptr take: &a]; 897 [ptr giveStrong: &a]; 898 [ptr takeStrong: &a]; 899 [ptr giveOut: &a]; 900 901 // CHECK: define{{.*}} void @test33([[TEST33:%.*]]* 902 // CHECK: [[PTR:%.*]] = alloca [[TEST33]]* 903 // CHECK-NEXT: [[A:%.*]] = alloca [[A_T:%.*]]* 904 // CHECK-NEXT: [[TEMP0:%.*]] = alloca [[A_T]]* 905 // CHECK-NEXT: [[TEMP1:%.*]] = alloca [[A_T]]* 906 // CHECK-NEXT: [[TEMP2:%.*]] = alloca [[A_T]]* 907 // CHECK-NEXT: bitcast 908 // CHECK-NEXT: llvm.objc.retain 909 // CHECK-NEXT: bitcast 910 // CHECK-NEXT: store 911 // CHECK-NEXT: bitcast 912 // CHECK-NEXT: call void @llvm.lifetime.start 913 // CHECK-NEXT: store [[A_T]]* null, [[A_T]]** [[A]] 914 915 // CHECK-NEXT: load [[TEST33]]*, [[TEST33]]** [[PTR]] 916 // CHECK-NEXT: [[W0:%.*]] = load [[A_T]]*, [[A_T]]** [[A]] 917 // CHECK-NEXT: store [[A_T]]* [[W0]], [[A_T]]** [[TEMP0]] 918 // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 919 // CHECK-NEXT: bitcast 920 // CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[TEMP0]]) 921 // CHECK-NEXT: [[T0:%.*]] = load [[A_T]]*, [[A_T]]** [[TEMP0]] 922 // CHECK-NEXT: [[T1:%.*]] = bitcast [[A_T]]* [[T0]] to i8* 923 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]]) 924 // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[A_T]]* 925 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use([[A_T]]* [[W0]]) [[NUW]] 926 // CHECK-NEXT: [[T4:%.*]] = load [[A_T]]*, [[A_T]]** [[A]] 927 // CHECK-NEXT: store [[A_T]]* [[T3]], [[A_T]]** [[A]] 928 // CHECK-NEXT: [[T5:%.*]] = bitcast [[A_T]]* [[T4]] to i8* 929 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T5]]) 930 931 // CHECK-NEXT: load [[TEST33]]*, [[TEST33]]** [[PTR]] 932 // CHECK-NEXT: [[W0:%.*]] = load [[A_T]]*, [[A_T]]** [[A]] 933 // CHECK-NEXT: store [[A_T]]* [[W0]], [[A_T]]** [[TEMP1]] 934 // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 935 // CHECK-NEXT: bitcast 936 // CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[TEMP1]]) 937 // CHECK-NEXT: [[T0:%.*]] = load [[A_T]]*, [[A_T]]** [[TEMP1]] 938 // CHECK-NEXT: [[T1:%.*]] = bitcast [[A_T]]* [[T0]] to i8* 939 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]]) 940 // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[A_T]]* 941 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use([[A_T]]* [[W0]]) [[NUW]] 942 // CHECK-NEXT: [[T4:%.*]] = load [[A_T]]*, [[A_T]]** [[A]] 943 // CHECK-NEXT: store [[A_T]]* [[T3]], [[A_T]]** [[A]] 944 // CHECK-NEXT: [[T5:%.*]] = bitcast [[A_T]]* [[T4]] to i8* 945 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T5]]) 946 947 // CHECK-NEXT: load [[TEST33]]*, [[TEST33]]** [[PTR]] 948 // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 949 // CHECK-NEXT: bitcast 950 // CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[A]]) 951 952 // CHECK-NEXT: load [[TEST33]]*, [[TEST33]]** [[PTR]] 953 // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 954 // CHECK-NEXT: bitcast 955 // CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[A]]) 956 957 // 'out' 958 // CHECK-NEXT: load [[TEST33]]*, [[TEST33]]** [[PTR]] 959 // CHECK-NEXT: store [[A_T]]* null, [[A_T]]** [[TEMP2]] 960 // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 961 // CHECK-NEXT: bitcast 962 // CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[TEMP2]]) 963 // CHECK-NEXT: [[T0:%.*]] = load [[A_T]]*, [[A_T]]** [[TEMP2]] 964 // CHECK-NEXT: [[T1:%.*]] = bitcast [[A_T]]* [[T0]] to i8* 965 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]]) 966 // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[A_T]]* 967 // CHECK-NEXT: [[T4:%.*]] = load [[A_T]]*, [[A_T]]** [[A]] 968 // CHECK-NEXT: store [[A_T]]* [[T3]], [[A_T]]** [[A]] 969 // CHECK-NEXT: [[T5:%.*]] = bitcast [[A_T]]* [[T4]] to i8* 970 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T5]]) 971 972 // CHECK-NEXT: load 973 // CHECK-NEXT: bitcast 974 // CHECK-NEXT: llvm.objc.release 975 // CHECK-NEXT: bitcast 976 // CHECK-NEXT: call void @llvm.lifetime.end 977 // CHECK-NEXT: load 978 // CHECK-NEXT: bitcast 979 // CHECK-NEXT: llvm.objc.release 980 // CHECK-NEXT: ret void 981} 982 983 984// CHECK-LABEL: define{{.*}} void @test36 985void test36(id x) { 986 // CHECK: [[X:%.*]] = alloca i8* 987 988 // CHECK: call i8* @llvm.objc.retain 989 // CHECK: call i8* @llvm.objc.retain 990 // CHECK: call i8* @llvm.objc.retain 991 id array[3] = { @"A", x, @"y" }; 992 993 // CHECK: [[T0:%.*]] = load i8*, i8** [[X]] 994 // CHECK-NEXT: store i8* null, i8** [[X]] 995 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) 996 x = 0; 997 998 // CHECK: br label 999 // CHECK: call void @llvm.objc.release 1000 // CHECK: br i1 1001 1002 // CHECK: call void @llvm.objc.release 1003 // CHECK-NEXT: ret void 1004} 1005 1006@class Test37; 1007void test37(void) { 1008 extern void test37_helper(id *); 1009 Test37 *var; 1010 test37_helper(&var); 1011 1012 // CHECK-LABEL: define{{.*}} void @test37() 1013 // CHECK: [[VAR:%.*]] = alloca [[TEST37:%.*]]*, 1014 // CHECK-NEXT: [[TEMP:%.*]] = alloca i8* 1015 // CHECK-NEXT: [[VARPTR1:%.*]] = bitcast [[TEST37]]** [[VAR]] to i8* 1016 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[VARPTR1]]) 1017 // CHECK-NEXT: store [[TEST37]]* null, [[TEST37]]** [[VAR]] 1018 1019 // CHECK-NEXT: [[W0:%.*]] = load [[TEST37]]*, [[TEST37]]** [[VAR]] 1020 // CHECK-NEXT: [[W1:%.*]] = bitcast [[TEST37]]* [[W0]] to i8* 1021 // CHECK-NEXT: store i8* [[W1]], i8** [[TEMP]] 1022 // CHECK-NEXT: call void @test37_helper(i8** [[TEMP]]) 1023 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[TEMP]] 1024 // CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[TEST37]]* 1025 // CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST37]]* [[T1]] to i8* 1026 // CHECK-NEXT: [[T3:%.*]] = call i8* @llvm.objc.retain(i8* [[T2]]) 1027 // CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to [[TEST37]]* 1028 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use(i8* [[W1]]) [[NUW]] 1029 // CHECK-NEXT: [[T5:%.*]] = load [[TEST37]]*, [[TEST37]]** [[VAR]] 1030 // CHECK-NEXT: store [[TEST37]]* [[T4]], [[TEST37]]** [[VAR]] 1031 // CHECK-NEXT: [[T6:%.*]] = bitcast [[TEST37]]* [[T5]] to i8* 1032 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T6]]) 1033 1034 // CHECK-NEXT: [[T0:%.*]] = load [[TEST37]]*, [[TEST37]]** [[VAR]] 1035 // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST37]]* [[T0]] to i8* 1036 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) 1037 // CHECK-NEXT: [[VARPTR2:%.*]] = bitcast [[TEST37]]** [[VAR]] to i8* 1038 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[VARPTR2]]) 1039 // CHECK-NEXT: ret void 1040} 1041 1042@interface Test43 @end 1043@implementation Test43 1044- (id) test __attribute__((ns_returns_retained)) { 1045 extern id test43_produce(void); 1046 return test43_produce(); 1047 // CHECK: call i8* @test43_produce() 1048 // CHECK-NEXT: notail call i8* @llvm.objc.retainAutoreleasedReturnValue( 1049 // CHECK-NEXT: ret 1050} 1051@end 1052 1053@interface Test45 1054@property (retain) id x; 1055@end 1056@implementation Test45 1057@synthesize x; 1058@end 1059// CHECK: define internal i8* @"\01-[Test45 x]"( 1060// CHECK: [[CALL:%.*]] = tail call i8* @objc_getProperty( 1061// CHECK-NEXT: ret i8* [[CALL]] 1062 1063// rdar://problem/9315552 1064void test46(__weak id *wp, __weak volatile id *wvp) { 1065 extern id test46_helper(void); 1066 1067 // TODO: this is sub-optimal, we should retain at the actual call site. 1068 1069 // CHECK: [[T0:%.*]] = call i8* @test46_helper() 1070 // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]]) 1071 // CHECK-NEXT: [[T2:%.*]] = load i8**, i8*** {{%.*}}, align 8 1072 // CHECK-NEXT: [[T3:%.*]] = call i8* @llvm.objc.storeWeak(i8** [[T2]], i8* [[T1]]) 1073 // CHECK-NEXT: [[T4:%.*]] = call i8* @llvm.objc.retain(i8* [[T3]]) 1074 // CHECK-NEXT: store i8* [[T4]], i8** 1075 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) 1076 id x = *wp = test46_helper(); 1077 1078 // CHECK: [[T0:%.*]] = call i8* @test46_helper() 1079 // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]]) 1080 // CHECK-NEXT: [[T2:%.*]] = load i8**, i8*** {{%.*}}, align 8 1081 // CHECK-NEXT: [[T3:%.*]] = call i8* @llvm.objc.storeWeak(i8** [[T2]], i8* [[T1]]) 1082 // CHECK-NEXT: [[T4:%.*]] = call i8* @llvm.objc.retain(i8* [[T3]]) 1083 // CHECK-NEXT: store i8* [[T4]], i8** 1084 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) 1085 id y = *wvp = test46_helper(); 1086} 1087 1088// rdar://problem/9378887 1089void test47(void) { 1090 extern id test47_helper(void); 1091 id x = x = test47_helper(); 1092 1093 // CHECK-LABEL: define{{.*}} void @test47() 1094 // CHECK: [[X:%.*]] = alloca i8* 1095 // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8* 1096 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]]) 1097 // CHECK-NEXT: store i8* null, i8** [[X]] 1098 // CHECK-NEXT: [[CALL:%.*]] = call i8* @test47_helper() 1099 // CHECK-NEXT: [[T0:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[CALL]]) 1100 // CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[X]] 1101 // CHECK-NEXT: store i8* [[T0]], i8** [[X]] 1102 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) 1103 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]]) 1104 // CHECK-NEXT: [[T3:%.*]] = load i8*, i8** [[X]] 1105 // CHECK-NEXT: store i8* [[T2]], i8** [[X]] 1106 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T3]]) 1107 // CHECK-NEXT: [[T4:%.*]] = load i8*, i8** [[X]] 1108 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T4]]) 1109 // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8* 1110 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]]) 1111 // CHECK-NEXT: ret void 1112} 1113 1114void test48(void) { 1115 extern id test48_helper(void); 1116 __weak id x = x = test48_helper(); 1117 // CHECK-LABEL: define{{.*}} void @test48() 1118 // CHECK: [[X:%.*]] = alloca i8* 1119 // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8* 1120 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]]) 1121 // CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.objc.initWeak(i8** [[X]], i8* null) 1122 // CHECK-NEXT: [[T1:%.*]] = call i8* @test48_helper() 1123 // CHECK-NEXT: [[T2:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T1]]) 1124 // CHECK-NEXT: [[T3:%.*]] = call i8* @llvm.objc.storeWeak(i8** [[X]], i8* [[T2]]) 1125 // CHECK-NEXT: [[T4:%.*]] = call i8* @llvm.objc.storeWeak(i8** [[X]], i8* [[T3]]) 1126 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T2]]) 1127 // CHECK-NEXT: call void @llvm.objc.destroyWeak(i8** [[X]]) 1128 // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8* 1129 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]]) 1130 // CHECK-NEXT: ret void 1131} 1132 1133void test49(void) { 1134 extern id test49_helper(void); 1135 __autoreleasing id x = x = test49_helper(); 1136 // CHECK-LABEL: define{{.*}} void @test49() 1137 // CHECK: [[X:%.*]] = alloca i8* 1138 // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8* 1139 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]]) 1140 // CHECK-NEXT: store i8* null, i8** [[X]] 1141 // CHECK-NEXT: [[CALL:%.*]] = call i8* @test49_helper() 1142 // CHECK-NEXT: [[T0:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[CALL]]) 1143 // CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.autorelease(i8* [[T0]]) 1144 // CHECK-NEXT: store i8* [[T2]], i8** [[X]] 1145 // CHECK-NEXT: [[T3:%.*]] = call i8* @llvm.objc.retainAutorelease(i8* [[T1]]) 1146 // CHECK-NEXT: store i8* [[T3]], i8** [[X]] 1147 // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8* 1148 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]]) 1149 // CHECK-NEXT: ret void 1150} 1151 1152// rdar://9380136 1153id x(); 1154void test50(id y) { 1155 ({x();}); 1156// CHECK: [[T0:%.*]] = call i8* @llvm.objc.retain 1157// CHECK: call void @llvm.objc.release 1158} 1159 1160 1161// rdar://9400762 1162struct CGPoint { 1163 float x; 1164 float y; 1165}; 1166typedef struct CGPoint CGPoint; 1167 1168@interface Foo 1169@property (assign) CGPoint point; 1170@end 1171 1172@implementation Foo 1173@synthesize point; 1174@end 1175 1176// rdar://problem/9400398 1177id test52(void) { 1178 id test52_helper(int) __attribute__((ns_returns_retained)); 1179 return ({ int x = 5; test52_helper(x); }); 1180 1181// CHECK-LABEL: define{{.*}} i8* @test52() 1182// CHECK: [[X:%.*]] = alloca i32 1183// CHECK-NEXT: [[TMPALLOCA:%.*]] = alloca i8* 1184// CHECK-NEXT: [[XPTR1:%.*]] = bitcast i32* [[X]] to i8* 1185// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 4, i8* [[XPTR1]]) 1186// CHECK-NEXT: store i32 5, i32* [[X]], 1187// CHECK-NEXT: [[T0:%.*]] = load i32, i32* [[X]], 1188// CHECK-NEXT: [[T1:%.*]] = call i8* @test52_helper(i32 [[T0]]) 1189// CHECK-NEXT: store i8* [[T1]], i8** [[TMPALLOCA]] 1190// CHECK-NEXT: [[XPTR2:%.*]] = bitcast i32* [[X]] to i8* 1191// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 4, i8* [[XPTR2]]) 1192// CHECK-NEXT: [[T2:%.*]] = load i8*, i8** [[TMPALLOCA]] 1193// CHECK-NEXT: [[T3:%.*]] = tail call i8* @llvm.objc.autoreleaseReturnValue(i8* [[T2]]) 1194// CHECK-NEXT: ret i8* [[T3]] 1195} 1196 1197// rdar://problem/9400644 1198void test53(void) { 1199 id test53_helper(void); 1200 id x = ({ id y = test53_helper(); y; }); 1201 (void) x; 1202// CHECK-LABEL: define{{.*}} void @test53() 1203// CHECK: [[X:%.*]] = alloca i8*, 1204// CHECK-NEXT: [[Y:%.*]] = alloca i8*, 1205// CHECK-NEXT: [[TMPALLOCA:%.*]] = alloca i8*, 1206// CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8* 1207// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]]) 1208// CHECK-NEXT: [[YPTR1:%.*]] = bitcast i8** [[Y]] to i8* 1209// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[YPTR1]]) 1210// CHECK-NEXT: [[T0:%.*]] = call i8* @test53_helper() 1211// CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]]) 1212// CHECK-NEXT: store i8* [[T1]], i8** [[Y]], 1213// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]], 1214// CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]]) 1215// CHECK-NEXT: store i8* [[T1]], i8** [[TMPALLOCA]] 1216// CHECK-NEXT: [[T2:%.*]] = load i8*, i8** [[Y]] 1217// CHECK-NEXT: call void @llvm.objc.release(i8* [[T2]]) 1218// CHECK-NEXT: [[YPTR2:%.*]] = bitcast i8** [[Y]] to i8* 1219// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[YPTR2]]) 1220// CHECK-NEXT: [[T3:%.*]] = load i8*, i8** [[TMPALLOCA]] 1221// CHECK-NEXT: store i8* [[T3]], i8** [[X]], 1222// CHECK-NEXT: load i8*, i8** [[X]], 1223// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]] 1224// CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) 1225// CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8* 1226// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]]) 1227// CHECK-NEXT: ret void 1228} 1229 1230// <rdar://problem/9758798> 1231// CHECK-LABEL: define{{.*}} void @test54(i32 %first, ...) 1232void test54(int first, ...) { 1233 __builtin_va_list arglist; 1234 // CHECK: call void @llvm.va_start 1235 __builtin_va_start(arglist, first); 1236 // CHECK: call i8* @llvm.objc.retain 1237 id obj = __builtin_va_arg(arglist, id); 1238 // CHECK: call void @llvm.va_end 1239 __builtin_va_end(arglist); 1240 // CHECK: call void @llvm.objc.release 1241 // CHECK: ret void 1242} 1243 1244// PR10228 1245@interface Test55Base @end 1246@interface Test55 : Test55Base @end 1247@implementation Test55 (Category) 1248- (void) dealloc {} 1249@end 1250// CHECK: define internal void @"\01-[Test55(Category) dealloc]"( 1251// CHECK-NOT: ret 1252// CHECK: call void bitcast (i8* ({{%.*}}*, i8*, ...)* @objc_msgSendSuper2 to void ({{%.*}}*, i8*)*)( 1253 1254// rdar://problem/8024350 1255@protocol Test56Protocol 1256+ (id) make __attribute__((ns_returns_retained)); 1257@end 1258@interface Test56<Test56Protocol> @end 1259@implementation Test56 1260// CHECK: define internal i8* @"\01+[Test56 make]"( 1261+ (id) make { 1262 extern id test56_helper(void); 1263 // CHECK: [[T0:%.*]] = call i8* @test56_helper() 1264 // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]]) 1265 // CHECK-NEXT: ret i8* [[T1]] 1266 return test56_helper(); 1267} 1268@end 1269void test56_test(void) { 1270 id x = [Test56 make]; 1271 // CHECK-LABEL: define{{.*}} void @test56_test() 1272 // CHECK: [[X:%.*]] = alloca i8*, align 8 1273 // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8* 1274 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]]) 1275 // CHECK: [[T0:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*)*)( 1276 // CHECK-NEXT: store i8* [[T0]], i8** [[X]] 1277 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]] 1278 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) 1279 // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8* 1280 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]]) 1281 // CHECK-NEXT: ret void 1282} 1283 1284// rdar://problem/9784964 1285@interface Test57 1286@property (nonatomic, strong) id strong; 1287@property (nonatomic, weak) id weak; 1288@property (nonatomic, unsafe_unretained) id unsafe; 1289@end 1290@implementation Test57 1291@synthesize strong, weak, unsafe; 1292@end 1293// CHECK: define internal i8* @"\01-[Test57 strong]"( 1294// CHECK: [[T0:%.*]] = load [[TEST57:%.*]]*, [[TEST57:%.*]]** {{%.*}} 1295// CHECK-NEXT: [[T1:%.*]] = load i64, i64* @"OBJC_IVAR_$_Test57.strong" 1296// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST57]]* [[T0]] to i8* 1297// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8, i8* [[T2]], i64 [[T1]] 1298// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8** 1299// CHECK-NEXT: [[T5:%.*]] = load i8*, i8** [[T4]] 1300// CHECK-NEXT: ret i8* [[T5]] 1301 1302// CHECK: define internal i8* @"\01-[Test57 weak]"( 1303// CHECK: [[T0:%.*]] = load [[TEST57]]*, [[TEST57]]** {{%.*}} 1304// CHECK-NEXT: [[T1:%.*]] = load i64, i64* @"OBJC_IVAR_$_Test57.weak" 1305// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST57]]* [[T0]] to i8* 1306// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8, i8* [[T2]], i64 [[T1]] 1307// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8** 1308// CHECK-NEXT: [[T5:%.*]] = call i8* @llvm.objc.loadWeakRetained(i8** [[T4]]) 1309// CHECK-NEXT: [[T6:%.*]] = tail call i8* @llvm.objc.autoreleaseReturnValue(i8* [[T5]]) 1310// CHECK-NEXT: ret i8* [[T6]] 1311 1312// CHECK: define internal i8* @"\01-[Test57 unsafe]"( 1313// CHECK: [[T0:%.*]] = load [[TEST57]]*, [[TEST57]]** {{%.*}} 1314// CHECK-NEXT: [[T1:%.*]] = load i64, i64* @"OBJC_IVAR_$_Test57.unsafe" 1315// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST57]]* [[T0]] to i8* 1316// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8, i8* [[T2]], i64 [[T1]] 1317// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8** 1318// CHECK-NEXT: [[T5:%.*]] = load i8*, i8** [[T4]] 1319// CHECK-NEXT: ret i8* [[T5]] 1320 1321// rdar://problem/9842343 1322void test59(void) { 1323 extern id test59_getlock(void); 1324 extern void test59_body(void); 1325 @synchronized (test59_getlock()) { 1326 test59_body(); 1327 } 1328 1329 // CHECK-LABEL: define{{.*}} void @test59() 1330 // CHECK: [[T0:%.*]] = call i8* @test59_getlock() 1331 // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]]) 1332 // CHECK-NEXT: call i32 @objc_sync_enter(i8* [[T1]]) 1333 // CHECK-NEXT: call void @test59_body() 1334 // CHECK-NEXT: call i32 @objc_sync_exit(i8* [[T1]]) 1335 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) 1336 // CHECK-NEXT: ret void 1337} 1338 1339// Verify that we don't try to reclaim the result of performSelector. 1340// rdar://problem/9887545 1341@interface Test61 1342- (id) performSelector: (SEL) selector; 1343- (void) test61_void; 1344- (id) test61_id; 1345@end 1346void test61(void) { 1347 // CHECK-LABEL: define{{.*}} void @test61() 1348 // CHECK: [[Y:%.*]] = alloca i8*, align 8 1349 1350 extern id test61_make(void); 1351 1352 // CHECK-NEXT: [[T0:%.*]] = call i8* @test61_make() 1353 // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]]) 1354 // CHECK-NEXT: [[T2:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 1355 // CHECK-NEXT: [[T3:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 1356 // CHECK-NEXT: [[T4:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i8*)*)(i8* [[T1]], i8* [[T3]], i8* [[T2]]) 1357 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) 1358 [test61_make() performSelector: @selector(test61_void)]; 1359 1360 // CHECK-NEXT: [[YPTR1:%.*]] = bitcast i8** [[Y]] to i8* 1361 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[YPTR1]]) 1362 // CHECK-NEXT: [[T0:%.*]] = call i8* @test61_make() 1363 // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]]) 1364 // CHECK-NEXT: [[T2:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 1365 // CHECK-NEXT: [[T3:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 1366 // CHECK-NEXT: [[T4:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i8*)*)(i8* [[T1]], i8* [[T3]], i8* [[T2]]) 1367 // CHECK-NEXT: [[T5:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T4]]) 1368 // CHECK-NEXT: store i8* [[T5]], i8** [[Y]] 1369 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) 1370 id y = [test61_make() performSelector: @selector(test61_id)]; 1371 1372 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]] 1373 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) 1374 // CHECK-NEXT: [[YPTR2:%.*]] = bitcast i8** [[Y]] to i8* 1375 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[YPTR2]]) 1376 // CHECK-NEXT: ret void 1377} 1378 1379// rdar://problem/9891815 1380void test62(void) { 1381 // CHECK-LABEL: define{{.*}} void @test62() 1382 // CHECK: [[I:%.*]] = alloca i32, align 4 1383 // CHECK-NEXT: [[CLEANUP_VALUE:%.*]] = alloca i8* 1384 // CHECK-NEXT: [[CLEANUP_REQUIRED:%.*]] = alloca i1 1385 extern id test62_make(void); 1386 extern void test62_body(void); 1387 1388 // CHECK-NEXT: [[IPTR:%.*]] = bitcast i32* [[I]] to i8* 1389 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 4, i8* [[IPTR]]) 1390 // CHECK-NEXT: store i32 0, i32* [[I]], align 4 1391 // CHECK-NEXT: br label 1392 1393 // CHECK: [[T0:%.*]] = load i32, i32* [[I]], align 4 1394 // CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 20 1395 // CHECK-NEXT: br i1 [[T1]], 1396 1397 for (unsigned i = 0; i != 20; ++i) { 1398 // CHECK: [[T0:%.*]] = load i32, i32* [[I]], align 4 1399 // CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0 1400 // CHECK-NEXT: store i1 false, i1* [[CLEANUP_REQUIRED]] 1401 // CHECK-NEXT: br i1 [[T1]], 1402 // CHECK: [[T0:%.*]] = call i8* @test62_make() 1403 // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]]) 1404 // CHECK-NEXT: store i8* [[T1]], i8** [[CLEANUP_VALUE]] 1405 // CHECK-NEXT: store i1 true, i1* [[CLEANUP_REQUIRED]] 1406 // CHECK-NEXT: [[T2:%.*]] = icmp ne i8* [[T1]], null 1407 // CHECK-NEXT: br label 1408 // CHECK: [[COND:%.*]] = phi i1 [ false, {{%.*}} ], [ [[T2]], {{%.*}} ] 1409 // CHECK-NEXT: [[T0:%.*]] = load i1, i1* [[CLEANUP_REQUIRED]] 1410 // CHECK-NEXT: br i1 [[T0]], 1411 // CHECK: [[T0:%.*]] = load i8*, i8** [[CLEANUP_VALUE]] 1412 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) 1413 // CHECK-NEXT: br label 1414 // CHECK: br i1 [[COND]] 1415 // CHECK: call void @test62_body() 1416 // CHECK-NEXT: br label 1417 // CHECK: br label 1418 if (i != 0 && test62_make() != 0) 1419 test62_body(); 1420 } 1421 1422 // CHECK: [[T0:%.*]] = load i32, i32* [[I]], align 4 1423 // CHECK-NEXT: [[T1:%.*]] = add i32 [[T0]], 1 1424 // CHECK-NEXT: store i32 [[T1]], i32* [[I]] 1425 // CHECK-NEXT: br label 1426 1427 // CHECK: ret void 1428} 1429 1430// rdar://9971982 1431@class NSString; 1432 1433@interface Person { 1434 NSString *name; 1435} 1436@property NSString *address; 1437@end 1438 1439@implementation Person 1440@synthesize address; 1441@end 1442// CHECK: tail call i8* @objc_getProperty 1443// CHECK: call void @objc_setProperty 1444 1445// Verify that we successfully parse and preserve this attribute in 1446// this position. 1447@interface Test66 1448- (void) consume: (id __attribute__((ns_consumed))) ptr; 1449@end 1450void test66(void) { 1451 extern Test66 *test66_receiver(void); 1452 extern id test66_arg(void); 1453 [test66_receiver() consume: test66_arg()]; 1454} 1455// CHECK-LABEL: define{{.*}} void @test66() 1456// CHECK: [[T0:%.*]] = call [[TEST66:%.*]]* @test66_receiver() 1457// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST66]]* [[T0]] to i8* 1458// CHECK-NEXT: [[T2:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T1]]) 1459// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST66]]* 1460// CHECK-NEXT: [[T4:%.*]] = call i8* @test66_arg() 1461// CHECK-NEXT: [[T5:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T4]]) 1462// CHECK-NEXT: [[T6:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES 1463// CHECK-NEXT: [[T7:%.*]] = bitcast [[TEST66]]* [[T3]] to i8* 1464// CHECK-NEXT: [[SIX:%.*]] = icmp eq i8* [[T7]], null 1465// CHECK-NEXT: br i1 [[SIX]], label [[NULINIT:%.*]], label [[CALL:%.*]] 1466// CHECK: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, i8*)*)(i8* [[T7]], i8* [[T6]], i8* [[T5]]) 1467// CHECK-NEXT: br label [[CONT:%.*]] 1468// CHECK: call void @llvm.objc.release(i8* [[T5]]) [[NUW]] 1469// CHECK-NEXT: br label [[CONT:%.*]] 1470// CHECK: [[T8:%.*]] = bitcast [[TEST66]]* [[T3]] to i8* 1471// CHECK-NEXT: call void @llvm.objc.release(i8* [[T8]]) 1472// CHECK-NEXT: ret void 1473 1474// rdar://problem/9953540 1475Class test67_helper(void); 1476void test67(void) { 1477 Class cl = test67_helper(); 1478} 1479// CHECK-LABEL: define{{.*}} void @test67() 1480// CHECK: [[CL:%.*]] = alloca i8*, align 8 1481// CHECK-NEXT: [[CLPTR1:%.*]] = bitcast i8** [[CL]] to i8* 1482// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[CLPTR1]]) 1483// CHECK-NEXT: [[T0:%.*]] = call i8* @test67_helper() 1484// CHECK-NEXT: store i8* [[T0]], i8** [[CL]], align 8 1485// CHECK-NEXT: [[CLPTR2:%.*]] = bitcast i8** [[CL]] to i8* 1486// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[CLPTR2]]) 1487// CHECK-NEXT: ret void 1488 1489Class test68_helper(void); 1490void test68(void) { 1491 __strong Class cl = test67_helper(); 1492} 1493// CHECK-LABEL: define{{.*}} void @test68() 1494// CHECK: [[CL:%.*]] = alloca i8*, align 8 1495// CHECK-NEXT: [[CLPTR1:%.*]] = bitcast i8** [[CL]] to i8* 1496// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[CLPTR1]]) 1497// CHECK-NEXT: [[T0:%.*]] = call i8* @test67_helper() 1498// CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]]) 1499// CHECK-NEXT: store i8* [[T1]], i8** [[CL]], align 8 1500// CHECK-NEXT: [[T2:%.*]] = load i8*, i8** [[CL]] 1501// CHECK-NEXT: call void @llvm.objc.release(i8* [[T2]]) 1502// CHECK-NEXT: [[CLPTR2:%.*]] = bitcast i8** [[CL]] to i8* 1503// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[CLPTR2]]) 1504// CHECK-NEXT: ret void 1505 1506// rdar://problem/10564852 1507@interface Test69 @end 1508@implementation Test69 1509- (id) foo { return self; } 1510@end 1511// CHECK: define internal i8* @"\01-[Test69 foo]"( 1512// CHECK: [[SELF:%.*]] = alloca [[TEST69:%.*]]*, align 8 1513// CHECK: [[T0:%.*]] = load [[TEST69]]*, [[TEST69]]** [[SELF]], align 8 1514// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST69]]* [[T0]] to i8* 1515// CHECK-NEXT: ret i8* [[T1]] 1516 1517// rdar://problem/10907547 1518void test70(id i) { 1519 // CHECK-LABEL: define{{.*}} void @test70 1520 // CHECK: store i8* null, i8** 1521 // CHECK: store i8* null, i8** 1522 // CHECK: [[ID:%.*]] = call i8* @llvm.objc.retain(i8* 1523 // CHECK: store i8* [[ID]], i8** 1524 id x[3] = { 1525 [2] = i 1526 }; 1527} 1528 1529// Be sure that we emit lifetime intrinsics only after dtors 1530struct AggDtor { 1531 char cs[40]; 1532 id x; 1533}; 1534 1535struct AggDtor getAggDtor(void); 1536 1537// CHECK-LABEL: define{{.*}} void @test71 1538void test71(void) { 1539 // CHECK: %[[T:[^ ]+]] = bitcast %struct.AggDtor* %[[TMP1:[^ ]+]] to i8* 1540 // CHECK: call void @llvm.lifetime.start.p0i8({{[^,]+}}, i8* %[[T]]) 1541 // CHECK: call void @getAggDtor(%struct.AggDtor* sret(%struct.AggDtor) align 8 %[[TMP1]]) 1542 // CHECK: %[[T:[^ ]+]] = bitcast %struct.AggDtor* %[[TMP1]] to i8** 1543 // CHECK: call void @__destructor_8_s40(i8** %[[T]]) 1544 // CHECK: %[[T:[^ ]+]] = bitcast %struct.AggDtor* %[[TMP1:[^ ]+]] to i8* 1545 // CHECK: call void @llvm.lifetime.end.p0i8({{[^,]+}}, i8* %[[T]]) 1546 // CHECK: %[[T:[^ ]+]] = bitcast %struct.AggDtor* %[[TMP2:[^ ]+]] to i8* 1547 // CHECK: call void @llvm.lifetime.start.p0i8({{[^,]+}}, i8* %[[T]]) 1548 // CHECK: call void @getAggDtor(%struct.AggDtor* sret(%struct.AggDtor) align 8 %[[TMP2]]) 1549 // CHECK: %[[T:[^ ]+]] = bitcast %struct.AggDtor* %[[TMP2]] to i8** 1550 // CHECK: call void @__destructor_8_s40(i8** %[[T]]) 1551 // CHECK: %[[T:[^ ]+]] = bitcast %struct.AggDtor* %[[TMP2:[^ ]+]] to i8* 1552 // CHECK: call void @llvm.lifetime.end.p0i8({{[^,]+}}, i8* %[[T]]) 1553 getAggDtor(); 1554 getAggDtor(); 1555} 1556 1557// Check that no extra release calls are emitted to detruct the compond literal. 1558 1559// CHECK: define{{.*}} void @test72(i8* %[[A:.*]], i8* %[[B:.*]]) 1560// CHECK: %[[A_ADDR:.*]] = alloca i8*, align 8 1561// CHECK: %[[B_ADDR:.*]] = alloca i8*, align 8 1562// CHECK: %[[T:.*]] = alloca [2 x i8*], align 16 1563// CHECK: %[[V0:.*]] = call i8* @llvm.objc.retain(i8* %[[A]]) 1564// CHECK: %[[V1:.*]] = call i8* @llvm.objc.retain(i8* %[[B]]) #2 1565// CHECK: %[[ARRAYINIT_BEGIN:.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* %[[T]], i64 0, i64 0 1566// CHECK: %[[V3:.*]] = load i8*, i8** %[[A_ADDR]], align 8, !tbaa !7 1567// CHECK: %[[V4:.*]] = call i8* @llvm.objc.retain(i8* %[[V3]]) #2 1568// CHECK: store i8* %[[V4]], i8** %[[ARRAYINIT_BEGIN]], align 8, !tbaa !7 1569// CHECK: %[[ARRAYINIT_ELEMENT:.*]] = getelementptr inbounds i8*, i8** %[[ARRAYINIT_BEGIN]], i64 1 1570// CHECK: %[[V5:.*]] = load i8*, i8** %[[B_ADDR]], align 8, !tbaa !7 1571// CHECK: %[[V6:.*]] = call i8* @llvm.objc.retain(i8* %[[V5]]) #2 1572// CHECK: store i8* %[[V6]], i8** %[[ARRAYINIT_ELEMENT]], align 8, !tbaa !7 1573// CHECK: %[[ARRAY_BEGIN:.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* %[[T]], i32 0, i32 0 1574// CHECK: %[[V7:.*]] = getelementptr inbounds i8*, i8** %[[ARRAY_BEGIN]], i64 2 1575 1576// CHECK-NOT: call void @llvm.objc.release 1577 1578// CHECK: %[[ARRAYDESTROY_ELEMENTPAST:.*]] = phi i8** [ %[[V7]], %{{.*}} ], [ %[[ARRAYDESTROY_ELEMENT:.*]], %{{.*}} ] 1579// CHECK: %[[ARRAYDESTROY_ELEMENT]] = getelementptr inbounds i8*, i8** %[[ARRAYDESTROY_ELEMENTPAST]], i64 -1 1580// CHECK: %[[V8:.*]] = load i8*, i8** %[[ARRAYDESTROY_ELEMENT]], align 8 1581// CHECK: call void @llvm.objc.release(i8* %[[V8]]) #2, !clang.imprecise_release !10 1582 1583// CHECK-NOT: call void @llvm.objc.release 1584 1585// CHECK: %[[V10:.*]] = load i8*, i8** %[[B_ADDR]], align 8 1586// CHECK: call void @llvm.objc.release(i8* %[[V10]]) #2, !clang.imprecise_release !10 1587// CHECK: %[[V11:.*]] = load i8*, i8** %[[A_ADDR]], align 8 1588// CHECK: call void @llvm.objc.release(i8* %[[V11]]) #2, !clang.imprecise_release !10 1589 1590void test72(id a, id b) { 1591 __strong id t[] = (__strong id[]){a, b}; 1592} 1593 1594// ARC-ALIEN: attributes [[NLB]] = { nonlazybind } 1595// ARC-NATIVE: attributes [[NLB]] = { nonlazybind } 1596// CHECK: attributes [[NUW]] = { nounwind } 1597