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1// RUN: %clang_cc1 -triple=x86_64-apple-darwin10 -emit-llvm -std=c++14 -fblocks -fobjc-arc -o - %s | FileCheck %s2 3// CHECK: %[[S:.*]] = type { i32 }4// CHECK: %[[CLASS_ANON_2:.*]] = type { ptr }5// CHECK: %[[CLASS_ANON_3:.*]] = type { %[[S]] }6 7// CHECK: %[[BLOCK_CAPTURED0:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, ptr, ptr }>, ptr %[[BLOCK:.*]], i32 0, i32 58// CHECK: %[[V0:.*]] = getelementptr inbounds nuw %[[LAMBDA_CLASS:.*]], ptr %[[THIS:.*]], i32 0, i32 09// CHECK: %[[V1:.*]] = load ptr, ptr %[[V0]], align 810// CHECK: store ptr %[[V1]], ptr %[[BLOCK_CAPTURED0]], align 811// CHECK: %[[BLOCK_CAPTURED1:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, ptr, ptr }>, ptr %[[BLOCK]], i32 0, i32 612// CHECK: %[[V2:.*]] = getelementptr inbounds nuw %[[LAMBDA_CLASS]], ptr %[[THIS]], i32 0, i32 113// CHECK: %[[V3:.*]] = load ptr, ptr %[[V2]], align 814// CHECK: store ptr %[[V3]], ptr %[[BLOCK_CAPTURED1]], align 815 16void foo1(int &, int &);17 18void block_in_lambda(int &s1, int &s2) {19 auto lambda = [&s1, &s2]() {20 auto block = ^{21 foo1(s1, s2);22 };23 block();24 };25 26 lambda();27}28 29namespace CaptureByReference {30 31id getObj();32void use(id);33 34// Block copy/dispose helpers aren't needed because 'a' is captured by35// reference.36 37// CHECK-LABEL: define{{.*}} void @_ZN18CaptureByReference5test0Ev(38// CHECK-LABEL: define internal void @"_ZZN18CaptureByReference5test0EvENK3$_0clEv"(39// CHECK: %[[BLOCK_DESCRIPTOR:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, ptr }>, ptr %{{.*}}, i32 0, i32 440// CHECK: store ptr @"__block_descriptor_40_e5_v8\01?0ls32l8", ptr %[[BLOCK_DESCRIPTOR]], align 841 42void test0() {43 id a = getObj();44 [&]{ ^{ a = 0; }(); }();45}46 47// Block copy/dispose helpers shouldn't have to retain/release 'a' because it48// is captured by reference.49 50// CHECK-LABEL: define{{.*}} void @_ZN18CaptureByReference5test1Ev(51// CHECK-LABEL: define internal void @"_ZZN18CaptureByReference5test1EvENK3$_0clEv"(52// CHECK: %[[BLOCK_DESCRIPTOR:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, ptr, ptr, ptr }>, ptr %{{.*}}, i32 0, i32 453// CHECK: store ptr @"__block_descriptor_56_8_32s40s_e5_v8\01?0l", ptr %[[BLOCK_DESCRIPTOR]], align 854 55void test1() {56 id a = getObj(), b = getObj(), c = getObj();57 [&a, b, c]{ ^{ a = 0; use(b); use(c); }(); }();58}59 60struct S {61 int val() const;62 int a;63 S();64 S(const S&);65 S &operator=(const S&);66 S(S&&);67 S &operator=(S&&);68};69 70S getS();71 72// CHECK: define internal noundef i32 @"_ZZN18CaptureByReference5test2EvENK3$_0clIiEEDaT_"(ptr {{[^,]*}} %{{.*}}, i32 noundef %{{.*}})73// CHECK: %[[BLOCK:.*]] = alloca <{ ptr, i32, i32, ptr, {{.*}}, ptr }>, align 874// CHECK: %[[BLOCK_CAPTURED:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, {{.*}}, ptr }>, ptr %[[BLOCK]], i32 0, i32 575// CHECK: %[[V0:.*]] = getelementptr inbounds nuw %[[CLASS_ANON_2]], ptr %{{.*}}, i32 0, i32 076// CHECK: %[[V1:.*]] = load ptr, ptr %[[V0]], align 877// CHECK: store ptr %[[V1]], ptr %[[BLOCK_CAPTURED]], align 878 79int test2() {80 S s;81 auto fn = [&](const auto a){82 return ^{83 return s.val();84 }();85 };86 return fn(123);87}88 89// CHECK: define internal noundef i32 @"_ZZN18CaptureByReference5test3EvENK3$_0clIiEEDaT_"(ptr {{[^,]*}} %{{.*}}, i32 noundef %{{.*}})90// CHECK: %[[BLOCK:.*]] = alloca <{ ptr, i32, i32, ptr, ptr, %[[S]] }>, align 891// CHECK: %[[BLOCK_CAPTURED:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, %[[S]] }>, ptr %[[BLOCK]], i32 0, i32 592// CHECK: %[[V0:.*]] = getelementptr inbounds nuw %[[CLASS_ANON_3]], ptr %{{.*}}, i32 0, i32 093// CHECK: call void @_ZN18CaptureByReference1SC1ERKS0_(ptr {{[^,]*}} %[[BLOCK_CAPTURED]], ptr {{.*}} %[[V0]])94 95int test3() {96 const S &s = getS();97 auto fn = [=](const auto a){98 return ^{99 return s.val();100 }();101 };102 return fn(123);103}104 105// CHECK-LABEL: define linkonce_odr hidden void @__copy_helper_block_8_32s40s(106// CHECK-NOT: call void @llvm.objc.storeStrong(107// CHECK: %[[V4:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, ptr, ptr, ptr }>, ptr %{{.*}}, i32 0, i32 5108// CHECK: %[[V5:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, ptr, ptr, ptr }>, ptr %{{.*}}, i32 0, i32 5109// CHECK: %[[BLOCKCOPY_SRC:.*]] = load ptr, ptr %[[V4]], align 8110// CHECK: store ptr null, ptr %[[V5]], align 8111// CHECK: call void @llvm.objc.storeStrong(ptr %[[V5]], ptr %[[BLOCKCOPY_SRC]])112// CHECK: %[[V6:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, ptr, ptr, ptr }>, ptr %{{.*}}, i32 0, i32 6113// CHECK: %[[V7:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, ptr, ptr, ptr }>, ptr %{{.*}}, i32 0, i32 6114// CHECK: %[[BLOCKCOPY_SRC2:.*]] = load ptr, ptr %[[V6]], align 8115// CHECK: store ptr null, ptr %[[V7]], align 8116// CHECK: call void @llvm.objc.storeStrong(ptr %[[V7]], ptr %[[BLOCKCOPY_SRC2]])117// CHECK-NOT: call void @llvm.objc.storeStrong(118// CHECK: ret void119 120// CHECK-LABEL: define linkonce_odr hidden void @__destroy_helper_block_8_32s40s(121// CHECK: %[[V2:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, ptr, ptr, ptr }>, ptr %{{.*}}, i32 0, i32 5122// CHECK: %[[V3:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, ptr, ptr, ptr }>, ptr %{{.*}}, i32 0, i32 6123// CHECK-NOT: call void @llvm.objc.storeStrong(124// CHECK: call void @llvm.objc.storeStrong(ptr %[[V3]], ptr null)125// CHECK: call void @llvm.objc.storeStrong(ptr %[[V2]], ptr null)126// CHECK-NOT: call void @llvm.objc.storeStrong(127// CHECK: ret void128 129}130