1// RUN: %clang_cc1 -fblocks -fobjc-arc -fobjc-runtime-has-weak -triple x86_64-apple-darwin -O0 -emit-llvm %s -o %t-64.s 2// RUN: FileCheck -check-prefix LP64 --input-file=%t-64.s %s 3// rdar://9503326 4// rdar://9606600 5 6extern void use(id); 7extern void use_block(void (^)(void)); 8 9struct NSFastEnumerationState; 10@interface NSArray 11- (unsigned long) countByEnumeratingWithState: (struct NSFastEnumerationState*) state 12 objects: (id*) buffer 13 count: (unsigned long) bufferSize; 14@end; 15 16void test0(NSArray *array) { 17 // 'x' should be initialized without a retain. 18 // We should actually do a non-constant capture, and that 19 // capture should require a retain. 20 for (id x in array) { 21 use_block(^{ use(x); }); 22 } 23} 24 25// CHECK-LP64: define void @test0( 26// CHECK-LP64: [[ARRAY:%.*]] = alloca [[ARRAY_T:%.*]]*, 27// CHECK-LP64-NEXT: [[X:%.*]] = alloca i8*, 28// CHECK-LP64-NEXT: [[STATE:%.*]] = alloca [[STATE_T:%.*]], 29// CHECK-LP64-NEXT: [[BUFFER:%.*]] = alloca [16 x i8*], align 8 30// CHECK-LP64-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]], 31 32// Initialize 'array'. 33// CHECK-LP64-NEXT: store [[ARRAY_T]]* null, [[ARRAY_T]]** [[ARRAY]] 34// CHECK-LP64-NEXT: [[ZERO:%.*]] = bitcast [[ARRAY_T]]** [[ARRAY]] to i8** 35// CHECK-LP64-NEXT: [[ONE:%.*]] = bitcast [[ARRAY_T]]* {{%.*}} to i8* 36// CHECK-LP64-NEXT: call void @objc_storeStrong(i8** [[ZERO]], i8* [[ONE]]) [[NUW:#[0-9]+]] 37 38// Initialize the fast enumaration state. 39// CHECK-LP64-NEXT: [[T0:%.*]] = bitcast [[STATE_T]]* [[STATE]] to i8* 40// CHECK-LP64-NEXT: call void @llvm.memset.p0i8.i64(i8* [[T0]], i8 0, i64 64, i32 8, i1 false) 41 42// Evaluate the collection expression and retain. 43// CHECK-LP64-NEXT: [[T0:%.*]] = load [[ARRAY_T]]** [[ARRAY]], align 8 44// CHECK-LP64-NEXT: [[T1:%.*]] = bitcast [[ARRAY_T]]* [[T0]] to i8* 45// CHECK-LP64-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]]) 46// CHECK-LP64-NEXT: [[SAVED_ARRAY:%.*]] = bitcast i8* [[T2]] to [[ARRAY_T]]* 47 48// Call the enumeration method. 49// CHECK-LP64-NEXT: [[T0:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_ 50// CHECK-LP64-NEXT: [[T1:%.*]] = bitcast [[ARRAY_T]]* [[SAVED_ARRAY]] to i8* 51// CHECK-LP64-NEXT: [[SIZE:%.*]] = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, [[STATE_T]]*, [16 x i8*]*, i64)*)(i8* [[T1]], i8* [[T0]], [[STATE_T]]* [[STATE]], [16 x i8*]* [[BUFFER]], i64 16) 52 53// Check for a nonzero result. 54// CHECK-LP64-NEXT: [[T0:%.*]] = icmp eq i64 [[SIZE]], 0 55// CHECK-LP64-NEXT: br i1 [[T0]] 56 57// CHECK-LP64: [[T0:%.*]] = getelementptr inbounds [[STATE_T]]* [[STATE]], i32 0, i32 1 58// CHECK-LP64-NEXT: [[T1:%.*]] = load i8*** [[T0]] 59// CHECK-LP64-NEXT: [[T2:%.*]] = getelementptr i8** [[T1]], i64 60// CHECK-LP64-NEXT: [[T3:%.*]] = load i8** [[T2]] 61// CHECK-LP64-NEXT: store i8* [[T3]], i8** [[X]] 62 63// CHECK-LP64: [[D0:%.*]] = getelementptr inbounds [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5 64// CHECK-LP64: [[T0:%.*]] = getelementptr inbounds [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5 65// CHECK-LP64-NEXT: [[T1:%.*]] = load i8** [[X]] 66// CHECK-LP64-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]]) 67// CHECK-LP64-NEXT: store i8* [[T2]], i8** [[T0]] 68// CHECK-LP64-NEXT: [[T1:%.*]] = bitcast [[BLOCK_T]]* [[BLOCK]] 69// CHECK-LP64: call void @use_block( 70// CHECK-LP64-NEXT: call void @objc_storeStrong(i8** [[D0]], i8* null) 71 72// CHECK-LP64: [[T0:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_ 73// CHECK-LP64-NEXT: [[T1:%.*]] = bitcast [[ARRAY_T]]* [[SAVED_ARRAY]] to i8* 74// CHECK-LP64-NEXT: [[SIZE:%.*]] = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, [[STATE_T]]*, [16 x i8*]*, i64)*)(i8* [[T1]], i8* [[T0]], [[STATE_T]]* [[STATE]], [16 x i8*]* [[BUFFER]], i64 16) 75 76// Release the array. 77// CHECK-LP64: [[T0:%.*]] = bitcast [[ARRAY_T]]* [[SAVED_ARRAY]] to i8* 78// CHECK-LP64-NEXT: call void @objc_release(i8* [[T0]]) 79 80// Destroy 'array'. 81// CHECK-LP64: [[T0:%.*]] = bitcast [[ARRAY_T]]** [[ARRAY]] to i8** 82// CHECK-LP64-NEXT: call void @objc_storeStrong(i8** [[T0]], i8* null) 83// CHECK-LP64-NEXT: ret void 84 85// CHECK-LP64: define internal void @__test0_block_invoke 86// CHECK-LP64: [[BLOCK:%.*]] = bitcast i8* {{%.*}} to [[BLOCK_T]]* 87// CHECK-LP64-NEXT: [[T0:%.*]] = getelementptr inbounds [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5 88// CHECK-LP64-NEXT: [[T2:%.*]] = load i8** [[T0]], align 8 89// CHECK-LP64-NEXT: call void @use(i8* [[T2]]) 90 91void test1(NSArray *array) { 92 for (__weak id x in array) { 93 use_block(^{ use(x); }); 94 } 95} 96 97// CHECK-LP64: define void @test1( 98// CHECK-LP64: alloca [[ARRAY_T:%.*]]*, 99// CHECK-LP64-NEXT: [[X:%.*]] = alloca i8*, 100// CHECK-LP64-NEXT: [[STATE:%.*]] = alloca [[STATE_T:%.*]], 101// CHECK-LP64-NEXT: alloca [16 x i8*], align 8 102// CHECK-LP64-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]], 103 104// CHECK-LP64: [[T0:%.*]] = getelementptr inbounds [[STATE_T]]* [[STATE]], i32 0, i32 1 105// CHECK-LP64-NEXT: [[T1:%.*]] = load i8*** [[T0]] 106// CHECK-LP64-NEXT: [[T2:%.*]] = getelementptr i8** [[T1]], i64 107// CHECK-LP64-NEXT: [[T3:%.*]] = load i8** [[T2]] 108// CHECK-LP64-NEXT: call i8* @objc_initWeak(i8** [[X]], i8* [[T3]]) 109 110// CHECK-LP64: [[D0:%.*]] = getelementptr inbounds [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5 111// CHECK-LP64: [[T0:%.*]] = getelementptr inbounds [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5 112// CHECK-LP64-NEXT: [[T1:%.*]] = call i8* @objc_loadWeakRetained(i8** [[X]]) 113// CHECK-LP64-NEXT: call i8* @objc_initWeak(i8** [[T0]], i8* [[T1]]) 114// CHECK-LP64-NEXT: call void @objc_release(i8* [[T1]]) 115// CHECK-LP64-NEXT: [[T1:%.*]] = bitcast [[BLOCK_T]]* [[BLOCK]] to 116// CHECK-LP64: call void @use_block 117// CHECK-LP64-NEXT: call void @objc_destroyWeak(i8** [[D0]]) 118// CHECK-LP64-NEXT: call void @objc_destroyWeak(i8** [[X]]) 119 120// rdar://problem/9817306 121@interface Test2 122- (NSArray *) array; 123@end 124void test2(Test2 *a) { 125 for (id x in a.array) { 126 use(x); 127 } 128} 129 130// CHECK-LP64: define void @test2( 131// CHECK-LP64: [[T0:%.*]] = call [[ARRAY_T]]* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to [[ARRAY_T]]* (i8*, i8*)*)( 132// CHECK-LP64-NEXT: [[T1:%.*]] = bitcast [[ARRAY_T]]* [[T0]] to i8* 133// CHECK-LP64-NEXT: [[T2:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T1]]) 134// CHECK-LP64-NEXT: [[COLL:%.*]] = bitcast i8* [[T2]] to [[ARRAY_T]]* 135 136// Make sure it's not immediately released before starting the iteration. 137// CHECK-LP64-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_ 138// CHECK-LP64-NEXT: [[T0:%.*]] = bitcast [[ARRAY_T]]* [[COLL]] to i8* 139// CHECK-LP64-NEXT: @objc_msgSend 140 141// This bitcast is for the mutation check. 142// CHECK-LP64: [[T0:%.*]] = bitcast [[ARRAY_T]]* [[COLL]] to i8* 143// CHECK-LP64-NEXT: @objc_enumerationMutation 144 145// This bitcast is for the 'next' message send. 146// CHECK-LP64: [[T0:%.*]] = bitcast [[ARRAY_T]]* [[COLL]] to i8* 147// CHECK-LP64-NEXT: @objc_msgSend 148 149// This bitcast is for the final release. 150// CHECK-LP64: [[T0:%.*]] = bitcast [[ARRAY_T]]* [[COLL]] to i8* 151// CHECK-LP64-NEXT: call void @objc_release(i8* [[T0]]) 152 153 154// Check that the 'continue' label is positioned appropriately 155// relative to the collection clenaup. 156void test3(NSArray *array) { 157 for (id x in array) { 158 if (!x) continue; 159 use(x); 160 } 161 162 // CHECK-LP64: define void @test3( 163 // CHECK-LP64: [[ARRAY:%.*]] = alloca [[ARRAY_T]]*, align 8 164 // CHECK-LP64-NEXT: [[X:%.*]] = alloca i8*, align 8 165 // CHECK-LP64: [[T0:%.*]] = load i8** [[X]], align 8 166 // CHECK-LP64-NEXT: [[T1:%.*]] = icmp ne i8* [[T0]], null 167 // CHECK-LP64-NEXT: br i1 [[T1]], 168 // CHECK-LP64: br label [[L:%[^ ]+]] 169 // CHECK-LP64: [[T0:%.*]] = load i8** [[X]], align 8 170 // CHECK-LP64-NEXT: call void @use(i8* [[T0]]) 171 // CHECK-LP64-NEXT: br label [[L]] 172} 173 174// CHECK: attributes [[NUW]] = { nounwind } 175