1 // RUN: %clang_cc1 -triple i386-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -fblocks -Wno-strict-prototypes -o - %s | FileCheck --check-prefix=CHECK --check-prefix=SIG_STR %s
2 // RUN: %clang_cc1 -triple i386-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -fblocks -Wno-strict-prototypes -fdisable-block-signature-string -o - %s | FileCheck --check-prefix=CHECK --check-prefix=NO_SIG_STR %s
4 // Check that there is only one capture (20o) in the copy/dispose function
7 // SIG_STR: @[[STR3:.*]] = private unnamed_addr constant [6 x i8] c"v4@?0\00", align 1
8 // SIG_STR: @[[BLOCK_DESCRIPTOR0:"__block_descriptor_28_4_20o_e5_v4\\01\?0l"]] = linkonce_odr hidden unnamed_addr constant { i32, i32, ptr, ptr, ptr, i32 } { i32 0, i32 28, ptr @__copy_helper_block_4_20o, ptr @__destroy_helper_block_4_20o, ptr @[[STR3]], i32 512 },
9 // NO_SIG_STR: @[[BLOCK_DESCRIPTOR0:__block_descriptor_28_4_20o_e0_l]] = linkonce_odr hidden unnamed_addr constant { i32, i32, ptr, ptr, ptr, i32 } { i32 0, i32 28, ptr @__copy_helper_block_4_20o, ptr @__destroy_helper_block_4_20o, ptr null, i32 512 },
20 - (int)foo: (T* (^)(T*)) x;
31 // CHECK: define internal i32 @"__8-[A im0]_block_invoke"(
34 (void) ^{ return 1; }();
41 ^(void) { [self im0]; }();
47 ^{ ^{[super im0];}(); }();
51 // In-depth test for the initialization of a __weak __block variable.
52 @interface Test2 -(void) destroy; @end
53 void test2(Test2 *x) {
54 extern void test2_helper(void (^)(void));
55 // CHECK-LABEL: define{{.*}} void @test2(
56 // CHECK: [[X:%.*]] = alloca ptr,
57 // CHECK-NEXT: [[WEAKX:%.*]] = alloca [[WEAK_T:%.*]],
58 // CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
59 // CHECK-NEXT: store ptr
61 // isa=1 for weak byrefs.
62 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds nuw [[WEAK_T]], ptr [[WEAKX]], i32 0, i32 0
63 // CHECK-NEXT: store ptr inttoptr (i32 1 to ptr), ptr [[T0]]
66 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds nuw [[WEAK_T]], ptr [[WEAKX]], i32 0, i32 1
67 // CHECK-NEXT: store ptr [[WEAKX]], ptr [[T1]]
69 // Flags. This is just BLOCK_HAS_COPY_DISPOSE BLOCK_BYREF_LAYOUT_UNRETAINED
70 // CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds nuw [[WEAK_T]], ptr [[WEAKX]], i32 0, i32 2
71 // CHECK-NEXT: store i32 1375731712, ptr [[T2]]
74 // CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds nuw [[WEAK_T]], ptr [[WEAKX]], i32 0, i32 3
75 // CHECK-NEXT: store i32 28, ptr [[T3]]
77 // Copy and dispose helpers.
78 // CHECK-NEXT: [[T4:%.*]] = getelementptr inbounds nuw [[WEAK_T]], ptr [[WEAKX]], i32 0, i32 4
79 // CHECK-NEXT: store ptr @__Block_byref_object_copy_{{.*}}, ptr [[T4]]
80 // CHECK-NEXT: [[T5:%.*]] = getelementptr inbounds nuw [[WEAK_T]], ptr [[WEAKX]], i32 0, i32 5
81 // CHECK-NEXT: store ptr @__Block_byref_object_dispose_{{.*}}, ptr [[T5]]
83 // Actually capture the value.
84 // CHECK-NEXT: [[T6:%.*]] = getelementptr inbounds nuw [[WEAK_T]], ptr [[WEAKX]], i32 0, i32 6
85 // CHECK-NEXT: [[CAPTURE:%.*]] = load ptr, ptr [[X]]
86 // CHECK-NEXT: store ptr [[CAPTURE]], ptr [[T6]]
88 // Then we initialize the block, blah blah blah.
89 // CHECK: call void @test2_helper(
91 // Finally, kill the variable with BLOCK_FIELD_IS_BYREF.
92 // CHECK: call void @_Block_object_dispose(ptr [[WEAKX]], i32 24)
94 __attribute__((objc_gc(weak))) __block Test2 *weakX = x;
95 test2_helper(^{ [weakX destroy]; });
98 // In the test above, check that the use in the invocation function
99 // doesn't require a read barrier.
100 // CHECK-LABEL: define internal void @__test2_block_invoke
101 // CHECK: [[T0:%.*]] = getelementptr inbounds nuw [[BLOCK_T]], ptr {{%.*}}, i32 0, i32 5
102 // CHECK-NEXT: [[T1:%.*]] = load ptr, ptr [[T0]]
103 // CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds nuw [[WEAK_T]]{{.*}}, ptr [[T1]], i32 0, i32 1
104 // CHECK-NEXT: [[T4:%.*]] = load ptr, ptr [[T3]]
105 // CHECK-NEXT: [[WEAKX:%.*]] = getelementptr inbounds nuw [[WEAK_T]]{{.*}}, ptr [[T4]], i32 0, i32 6
106 // CHECK-NEXT: [[T0:%.*]] = load ptr, ptr [[WEAKX]], align 4
108 // Make sure that ... is appropriately positioned in a block call.
109 void test3(void (^block)(int, ...)) {
112 // CHECK-LABEL: define{{.*}} void @test3(
113 // CHECK: [[BLOCK:%.*]] = alloca ptr, align 4
114 // CHECK-NEXT: store ptr
115 // CHECK-NEXT: [[T0:%.*]] = load ptr, ptr [[BLOCK]], align 4
116 // CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds nuw [[BLOCK_T:%.*]], ptr [[T0]], i32 0, i32 3
117 // CHECK-NEXT: [[T4:%.*]] = load ptr, ptr [[T2]]
118 // CHECK-NEXT: call void (ptr, i32, ...) [[T4]](ptr noundef [[T0]], i32 noundef 0, i32 noundef 1, i32 noundef 2, i32 noundef 3)
119 // CHECK-NEXT: ret void
121 void test4(void (^block)()) {
124 // CHECK-LABEL: define{{.*}} void @test4(
125 // CHECK: [[BLOCK:%.*]] = alloca ptr, align 4
126 // CHECK-NEXT: store ptr
127 // CHECK-NEXT: [[T0:%.*]] = load ptr, ptr [[BLOCK]], align 4
128 // CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds nuw [[BLOCK_T:%.*]], ptr [[T0]], i32 0, i32 3
129 // CHECK-NEXT: [[T4:%.*]] = load ptr, ptr [[T2]]
130 // CHECK-NEXT: call void [[T4]](ptr noundef [[T0]], i32 noundef 0, i32 noundef 1, i32 noundef 2, i32 noundef 3)
131 // CHECK-NEXT: ret void
134 __unsafe_unretained A *t = a;
135 gb0 = ^{ (void)a; (void)t; };
138 // CHECK-LABEL: define void @test5(
139 // CHECK: %[[FLAGS:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, ptr, ptr }>, ptr %{{.*}}, i32 0, i32 1
140 // SIG_STR: store i32 -1040187392, ptr %[[FLAGS]], align 4
141 // NO_SIG_STR: store i32 -2113929216, ptr %[[FLAGS]], align 4
142 // CHECK: %[[V0:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, ptr, ptr }>, ptr %{{.*}}, i32 0, i32 4
143 // CHECK: store ptr @[[BLOCK_DESCRIPTOR0]], ptr %[[V0]],
145 void test6(id a, long long b) {
146 void (^block)() = ^{ (void)b; (void)a; };
149 // Check that the block literal doesn't have two fields for capture 'a'.
151 // CHECK-LABEL: define void @test6(
152 // CHECK: alloca <{ ptr, i32, i32, ptr, ptr, ptr, i64 }>,