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1// RUN: %clang_cc1 -triple x86_64-apple-macosx10.12.0 -emit-llvm -disable-llvm-passes -O3 -fblocks -fobjc-arc -fobjc-runtime-has-weak -std=c++11 -o - %s | FileCheck %s2 3void test0(id x) {4 extern void test0_helper(id (^)(void));5 test0_helper([=]() { return x; });6 // CHECK-LABEL: define internal noundef ptr @___Z5test0P11objc_object_block_invoke7 // CHECK: [[T0:%.*]] = call noundef ptr @"_ZZ5test0P11objc_objectENK3$_0clEv"{{.*}} [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ]8 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use(ptr [[T0]])9 // CHECK-NEXT: [[T2:%.*]] = tail call ptr @llvm.objc.autoreleaseReturnValue(ptr [[T0]])10 // CHECK-NEXT: ret ptr [[T2]]11}12 13// Check that the delegating block invoke function doesn't destruct the Weak14// object that is passed.15 16// CHECK-LABEL: define internal void @___Z8testWeakv_block_invoke(17// CHECK: call void @"_ZZ8testWeakvENK3$_0clE4Weak"(18// CHECK-NEXT: ret void19 20// CHECK-LABEL: define internal void @"_ZZ8testWeakvENK3$_0clE4Weak"(21// CHECK: call void @_ZN4WeakD1Ev(22// CHECK-NEXT: ret void23 24id test1_rv;25 26void test1() {27 extern void test1_helper(id (*)(void));28 test1_helper([](){ return test1_rv; });29 // CHECK-LABEL: define internal noundef ptr @"_ZZ5test1vEN3$_08__invokeEv"30 // CHECK: [[T0:%.*]] = call noundef ptr @"_ZZ5test1vENK3$_0clEv"{{.*}} [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ]31 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use(ptr [[T0]])32 // CHECK-NEXT: [[T2:%.*]] = tail call ptr @llvm.objc.autoreleaseReturnValue(ptr [[T0]])33 // CHECK-NEXT: ret ptr [[T2]]34}35 36struct Weak {37 __weak id x;38};39 40void testWeak() {41 extern void testWeak_helper(void (^)(Weak));42 testWeak_helper([](Weak){});43}44