1// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-runtime-has-weak -fblocks -fobjc-arc -O2 -disable-llvm-optzns -o - %s | FileCheck %s 2 3struct NSFastEnumerationState; 4@interface NSArray 5- (unsigned long) countByEnumeratingWithState: (struct NSFastEnumerationState*) state 6 objects: (id*) buffer 7 count: (unsigned long) bufferSize; 8@end; 9NSArray *nsarray() { return 0; } 10// CHECK: define [[NSARRAY:%.*]]* @_Z7nsarrayv() 11 12void use(id); 13 14// rdar://problem/9315552 15// The analogous ObjC testcase test46 in arr.m. 16void test0(__weak id *wp, __weak volatile id *wvp) { 17 extern id test0_helper(void); 18 19 // TODO: this is sub-optimal, we should retain at the actual call site. 20 // TODO: in the non-volatile case, we do not need to be reloading. 21 22 // CHECK: [[T0:%.*]] = call i8* @_Z12test0_helperv() 23 // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]]) 24 // CHECK-NEXT: [[T2:%.*]] = load i8**, i8*** {{%.*}}, align 8 25 // CHECK-NEXT: [[T3:%.*]] = call i8* @objc_storeWeak(i8** [[T2]], i8* [[T1]]) 26 // CHECK-NEXT: [[T4:%.*]] = call i8* @objc_retain(i8* [[T3]]) 27 // CHECK-NEXT: store i8* [[T4]], i8** 28 // CHECK-NEXT: call void @objc_release(i8* [[T1]]) 29 id x = *wp = test0_helper(); 30 31 // CHECK: [[T0:%.*]] = call i8* @_Z12test0_helperv() 32 // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]]) 33 // CHECK-NEXT: [[T2:%.*]] = load i8**, i8*** {{%.*}}, align 8 34 // CHECK-NEXT: [[T3:%.*]] = call i8* @objc_storeWeak(i8** [[T2]], i8* [[T1]]) 35 // CHECK-NEXT: [[T4:%.*]] = call i8* @objc_loadWeakRetained(i8** [[T2]]) 36 // CHECK-NEXT: store i8* [[T4]], i8** 37 // CHECK-NEXT: call void @objc_release(i8* [[T1]]) 38 id y = *wvp = test0_helper(); 39} 40 41// rdar://problem/9320648 42struct Test1_helper { Test1_helper(); }; 43@interface Test1 @end 44@implementation Test1 { Test1_helper x; } @end 45// CHECK: define internal i8* @"\01-[Test1 .cxx_construct]"( 46// CHECK: call void @_ZN12Test1_helperC1Ev( 47// CHECK-NEXT: load 48// CHECK-NEXT: bitcast 49// CHECK-NEXT: ret i8* 50 51void test34(int cond) { 52 __strong id strong; 53 __weak id weak; 54 extern void test34_sink(id *); 55 test34_sink(cond ? &strong : 0); 56 test34_sink(cond ? &weak : 0); 57 58 // CHECK-LABEL: define void @_Z6test34i( 59 // CHECK: [[COND:%.*]] = alloca i32 60 // CHECK-NEXT: [[STRONG:%.*]] = alloca i8* 61 // CHECK-NEXT: [[WEAK:%.*]] = alloca i8* 62 // CHECK-NEXT: [[TEMP1:%.*]] = alloca i8* 63 // CHECK-NEXT: [[TEMP2:%.*]] = alloca i8* 64 // CHECK-NEXT: [[CONDCLEANUPSAVE:%.*]] = alloca i8* 65 // CHECK-NEXT: [[CONDCLEANUP:%.*]] = alloca i1 66 // CHECK-NEXT: store i32 67 // CHECK-NEXT: [[STRONGP:%.*]] = bitcast i8** [[STRONG]] to i8* 68 // CHECK-NEXT: call void @llvm.lifetime.start(i64 8, i8* [[STRONGP]]) 69 // CHECK-NEXT: store i8* null, i8** [[STRONG]] 70 // CHECK-NEXT: [[WEAKP:%.*]] = bitcast i8** [[WEAK]] to i8* 71 // CHECK-NEXT: call void @llvm.lifetime.start(i64 8, i8* [[WEAKP]]) 72 // CHECK-NEXT: call i8* @objc_initWeak(i8** [[WEAK]], i8* null) 73 74 // CHECK-NEXT: [[T0:%.*]] = load i32, i32* [[COND]] 75 // CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0 76 // CHECK: [[ARG:%.*]] = phi i8** 77 // CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null 78 // CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], i8** null, i8** [[TEMP1]] 79 // CHECK-NEXT: br i1 [[T0]], 80 // CHECK: [[T0:%.*]] = load i8*, i8** [[ARG]] 81 // CHECK-NEXT: store i8* [[T0]], i8** [[TEMP1]] 82 // CHECK-NEXT: br label 83 // CHECK: [[W0:%.*]] = phi i8* [ [[T0]], {{%.*}} ], [ undef, {{%.*}} ] 84 // CHECK: call void @_Z11test34_sinkPU15__autoreleasingP11objc_object(i8** [[T1]]) 85 // CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null 86 // CHECK-NEXT: br i1 [[T0]], 87 // CHECK: [[T0:%.*]] = load i8*, i8** [[TEMP1]] 88 // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]]) 89 // CHECK-NEXT: call void (...) @clang.arc.use(i8* [[W0]]) 90 // CHECK-NEXT: [[T2:%.*]] = load i8*, i8** [[ARG]] 91 // CHECK-NEXT: store i8* [[T1]], i8** [[ARG]] 92 // CHECK-NEXT: call void @objc_release(i8* [[T2]]) 93 // CHECK-NEXT: br label 94 95 // CHECK: [[T0:%.*]] = load i32, i32* [[COND]] 96 // CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0 97 // CHECK: [[ARG:%.*]] = phi i8** 98 // CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null 99 // CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], i8** null, i8** [[TEMP2]] 100 // CHECK-NEXT: store i1 false, i1* [[CONDCLEANUP]] 101 // CHECK-NEXT: br i1 [[T0]], 102 // CHECK: [[T0:%.*]] = call i8* @objc_loadWeakRetained(i8** [[ARG]]) 103 // CHECK-NEXT: store i8* [[T0]], i8** [[CONDCLEANUPSAVE]] 104 // CHECK-NEXT: store i1 true, i1* [[CONDCLEANUP]] 105 // CHECK-NEXT: store i8* [[T0]], i8** [[TEMP2]] 106 // CHECK-NEXT: br label 107 // CHECK: call void @_Z11test34_sinkPU15__autoreleasingP11objc_object(i8** [[T1]]) 108 // CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null 109 // CHECK-NEXT: br i1 [[T0]], 110 // CHECK: [[T0:%.*]] = load i8*, i8** [[TEMP2]] 111 // CHECK-NEXT: call i8* @objc_storeWeak(i8** [[ARG]], i8* [[T0]]) 112 // CHECK-NEXT: br label 113 114 // CHECK: call void @objc_destroyWeak(i8** [[WEAK]]) 115 // CHECK: ret void 116} 117 118struct Test35_Helper { 119 static id makeObject1() __attribute__((ns_returns_retained)); 120 id makeObject2() __attribute__((ns_returns_retained)); 121 static id makeObject3(); 122 id makeObject4(); 123}; 124 125// CHECK-LABEL: define void @_Z6test3513Test35_HelperPS_ 126void test35(Test35_Helper x0, Test35_Helper *x0p) { 127 // CHECK: call void @llvm.lifetime.start 128 // CHECK: call i8* @_ZN13Test35_Helper11makeObject1Ev 129 // CHECK-NOT: call i8* @objc_retain 130 id obj1 = Test35_Helper::makeObject1(); 131 // CHECK: call void @llvm.lifetime.start 132 // CHECK: call i8* @_ZN13Test35_Helper11makeObject2Ev 133 // CHECK-NOT: call i8* @objc_retain 134 id obj2 = x0.makeObject2(); 135 // CHECK: call void @llvm.lifetime.start 136 // CHECK: call i8* @_ZN13Test35_Helper11makeObject2Ev 137 // CHECK-NOT: call i8* @objc_retain 138 id obj3 = x0p->makeObject2(); 139 id (Test35_Helper::*pmf)() __attribute__((ns_returns_retained)) 140 = &Test35_Helper::makeObject2; 141 // CHECK: call void @llvm.lifetime.start 142 // CHECK: call i8* % 143 // CHECK-NOT: call i8* @objc_retain 144 id obj4 = (x0.*pmf)(); 145 // CHECK: call void @llvm.lifetime.start 146 // CHECK: call i8* % 147 // CHECK-NOT: call i8* @objc_retain 148 id obj5 = (x0p->*pmf)(); 149 150 // CHECK: call void @objc_release 151 // CHECK: call void @llvm.lifetime.end 152 // CHECK: call void @objc_release 153 // CHECK: call void @llvm.lifetime.end 154 // CHECK: call void @objc_release 155 // CHECK: call void @llvm.lifetime.end 156 // CHECK: call void @objc_release 157 // CHECK: call void @llvm.lifetime.end 158 // CHECK: call void @objc_release 159 // CHECK: call void @llvm.lifetime.end 160 // CHECK-NEXT: ret void 161} 162 163// CHECK-LABEL: define void @_Z7test35b13Test35_HelperPS_ 164void test35b(Test35_Helper x0, Test35_Helper *x0p) { 165 // CHECK: call void @llvm.lifetime.start 166 // CHECK: call i8* @_ZN13Test35_Helper11makeObject3Ev 167 // CHECK: call i8* @objc_retain 168 id obj1 = Test35_Helper::makeObject3(); 169 // CHECK: call void @llvm.lifetime.start 170 // CHECK: call i8* @_ZN13Test35_Helper11makeObject4Ev 171 // CHECK: call i8* @objc_retain 172 id obj2 = x0.makeObject4(); 173 // CHECK: call void @llvm.lifetime.start 174 // CHECK: call i8* @_ZN13Test35_Helper11makeObject4Ev 175 // CHECK: call i8* @objc_retain 176 id obj3 = x0p->makeObject4(); 177 id (Test35_Helper::*pmf)() = &Test35_Helper::makeObject4; 178 // CHECK: call void @llvm.lifetime.start 179 // CHECK: call i8* % 180 // CHECK: call i8* @objc_retain 181 id obj4 = (x0.*pmf)(); 182 // CHECK: call void @llvm.lifetime.start 183 // CHECK: call i8* % 184 // CHECK: call i8* @objc_retain 185 id obj5 = (x0p->*pmf)(); 186 187 // CHECK: call void @objc_release 188 // CHECK: call void @llvm.lifetime.end 189 // CHECK: call void @objc_release 190 // CHECK: call void @llvm.lifetime.end 191 // CHECK: call void @llvm.lifetime.end 192 // CHECK: call void @objc_release 193 // CHECK: call void @llvm.lifetime.end 194 // CHECK: call void @objc_release 195 // CHECK: call void @llvm.lifetime.end 196 // CHECK: call void @objc_release 197 // CHECK: call void @llvm.lifetime.end 198 // CHECK-NEXT: ret void 199} 200 201// rdar://problem/9603128 202// CHECK-LABEL: define i8* @_Z6test36P11objc_object( 203id test36(id z) { 204 // CHECK: objc_retain 205 // CHECK: objc_retain 206 // CHECK: objc_release 207 // CHECK: objc_autoreleaseReturnValue 208 return z; 209} 210 211// Template instantiation side of rdar://problem/9817306 212@interface Test37 213+ alloc; 214- init; 215- (NSArray *) array; 216@end 217template <class T> void test37(T *a) { 218 for (id x in a.array) { 219 use(x); 220 } 221} 222extern template void test37<Test37>(Test37 *a); 223template void test37<Test37>(Test37 *a); 224// CHECK-LABEL: define weak_odr void @_Z6test37I6Test37EvPT_( 225// CHECK: [[T0:%.*]] = call [[NSARRAY]]* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to [[NSARRAY]]* (i8*, i8*)*)( 226// CHECK-NEXT: [[T1:%.*]] = bitcast [[NSARRAY]]* [[T0]] to i8* 227// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T1]]) 228// CHECK-NEXT: [[COLL:%.*]] = bitcast i8* [[T2]] to [[NSARRAY]]* 229 230// Make sure it's not immediately released before starting the iteration. 231// CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_ 232// CHECK-NEXT: [[T0:%.*]] = bitcast [[NSARRAY]]* [[COLL]] to i8* 233// CHECK-NEXT: @objc_msgSend 234 235// This bitcast is for the mutation check. 236// CHECK: [[T0:%.*]] = bitcast [[NSARRAY]]* [[COLL]] to i8* 237// CHECK-NEXT: @objc_enumerationMutation 238 239// This bitcast is for the 'next' message send. 240// CHECK: [[T0:%.*]] = bitcast [[NSARRAY]]* [[COLL]] to i8* 241// CHECK-NEXT: @objc_msgSend 242 243// This bitcast is for the final release. 244// CHECK: [[T0:%.*]] = bitcast [[NSARRAY]]* [[COLL]] to i8* 245// CHECK-NEXT: call void @objc_release(i8* [[T0]]) 246 247template<typename T> 248void send_release() { 249 [Test37 array]; 250} 251 252// CHECK-LABEL: define weak_odr void @_Z12send_releaseIiEvv( 253// CHECK: call %0* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend 254// CHECK-NEXT: bitcast 255// CHECK-NEXT: call i8* @objc_retainAutoreleasedReturnValue 256// CHECK-NEXT: bitcast 257// CHECK-NEXT: bitcast 258// CHECK-NEXT: call void @objc_release 259// CHECK-NEXT: ret void 260template void send_release<int>(); 261 262template<typename T> 263Test37 *instantiate_init() { 264 Test37 *result = [[Test37 alloc] init]; 265 return result; 266} 267 268// CHECK-LABEL: define weak_odr %2* @_Z16instantiate_initIiEP6Test37v 269// CHECK: call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend 270// CHECK: call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend 271// CHECK: call i8* @objc_retain 272// CHECK: call void @objc_release 273// CHECK: call i8* @objc_autoreleaseReturnValue 274template Test37* instantiate_init<int>(); 275 276// Just make sure that the AST invariants hold properly here, 277// i.e. that we don't crash. 278// The block should get bound in the full-expression outside 279// the statement-expression. 280template <class T> class Test38 { 281 void test(T x) { 282 ^{ (void) x; }, ({ x; }); 283 } 284}; 285// CHECK-LABEL: define weak_odr void @_ZN6Test38IiE4testEi( 286template class Test38<int>; 287 288// rdar://problem/11964832 289class Test39_base1 { 290 virtual void foo(); 291}; 292class Test39_base2 { 293 virtual id bar(); 294}; 295class Test39 : Test39_base1, Test39_base2 { // base2 is at non-zero offset 296 virtual id bar(); 297}; 298id Test39::bar() { return 0; } 299// Note lack of autorelease. 300// CHECK-LABEL: define i8* @_ZThn8_N6Test393barEv( 301// CHECK: call i8* @_ZN6Test393barEv( 302// CHECK-NEXT: ret i8* 303 304// rdar://13617051 305// Just a basic sanity-check that IR-gen still works after instantiating 306// a non-dependent message send that requires writeback. 307@interface Test40 308+ (void) foo:(id *)errorPtr; 309@end 310template <class T> void test40_helper() { 311 id x; 312 [Test40 foo: &x]; 313}; 314template void test40_helper<int>(); 315// CHECK-LABEL: define weak_odr void @_Z13test40_helperIiEvv() 316// CHECK: [[X:%.*]] = alloca i8* 317// CHECK-NEXT: [[TEMP:%.*]] = alloca i8* 318// CHECK-NEXT: [[XP:%.*]] = bitcast i8** [[X]] to i8* 319// CHECK-NEXT: call void @llvm.lifetime.start(i64 8, i8* [[XP]]) 320// CHECK-NEXT: store i8* null, i8** [[X]] 321// CHECK: [[T0:%.*]] = load i8*, i8** [[X]] 322// CHECK-NEXT: store i8* [[T0]], i8** [[TEMP]] 323// CHECK: @objc_msgSend 324// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[TEMP]] 325// CHECK-NEXT: call i8* @objc_retain(i8* [[T0]]) 326 327// Check that moves out of __weak variables are compiled to use objc_moveWeak. 328void test41(__weak id &&x) { 329 __weak id y = static_cast<__weak id &&>(x); 330} 331// CHECK-LABEL: define void @_Z6test41OU6__weakP11objc_object 332// CHECK: [[X:%.*]] = alloca i8** 333// CHECK: [[Y:%.*]] = alloca i8* 334// CHECK: [[T0:%.*]] = load i8**, i8*** [[X]] 335// CHECK-NEXT: call void @objc_moveWeak(i8** [[Y]], i8** [[T0]]) 336// CHECK-NEXT: call void @objc_destroyWeak(i8** [[Y]]) 337