1*67e74705SXin Li// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck %s 2*67e74705SXin Li 3*67e74705SXin Li__attribute((objc_root_class)) @interface A @end 4*67e74705SXin Li@interface B : A @end 5*67e74705SXin Li 6*67e74705SXin Li// rdar://problem/23559789 7*67e74705SXin Li// Ensure that type differences don't cause an assert here. 8*67e74705SXin Livoid test0(__weak B **src) { 9*67e74705SXin Li __weak A *dest = *src; 10*67e74705SXin Li} 11*67e74705SXin Li// CHECK-LABEL: define void @test0 12*67e74705SXin Li// CHECK: [[SRC:%.*]] = alloca [[B:%.*]]**, align 8 13*67e74705SXin Li// CHECK: [[DEST:%.*]] = alloca [[A:%.*]]*, align 8 14*67e74705SXin Li// CHECK: [[T0:%.*]] = load [[B]]**, [[B]]*** [[SRC]], align 8 15*67e74705SXin Li// CHECK-NEXT: [[T1:%.*]] = bitcast [[B]]** [[T0]] to [[A]]** 16*67e74705SXin Li// CHECK-NEXT: [[T2:%.*]] = bitcast [[A]]** [[DEST]] to i8** 17*67e74705SXin Li// CHECK-NEXT: [[T3:%.*]] = bitcast [[A]]** [[T1]] to i8** 18*67e74705SXin Li// CHECK-NEXT: call void @objc_copyWeak(i8** [[T2]], i8** [[T3]]) 19*67e74705SXin Li// CHECK-NEXT: [[T0:%.*]] = bitcast [[A]]** [[DEST]] to i8** 20*67e74705SXin Li// CHECK: call void @objc_destroyWeak(i8** [[T0]]) 21