| John McCall | 0204e34 | 2015-11-16 22:11:41 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck %s |
| 2 | |
| 3 | __attribute((objc_root_class)) @interface A @end |
| 4 | @interface B : A @end |
| 5 | |
| 6 | // rdar://problem/23559789 |
| 7 | // Ensure that type differences don't cause an assert here. |
| 8 | void test0(__weak B **src) { |
| 9 | __weak A *dest = *src; |
| 10 | } |
| 11 | // CHECK-LABEL: define void @test0 |
| 12 | // CHECK: [[SRC:%.*]] = alloca [[B:%.*]]**, align 8 |
| 13 | // CHECK: [[DEST:%.*]] = alloca [[A:%.*]]*, align 8 |
| 14 | // CHECK: [[T0:%.*]] = load [[B]]**, [[B]]*** [[SRC]], align 8 |
| 15 | // CHECK-NEXT: [[T1:%.*]] = bitcast [[B]]** [[T0]] to [[A]]** |
| 16 | // CHECK-NEXT: [[T2:%.*]] = bitcast [[A]]** [[DEST]] to i8** |
| 17 | // CHECK-NEXT: [[T3:%.*]] = bitcast [[A]]** [[T1]] to i8** |
| 18 | // CHECK-NEXT: call void @objc_copyWeak(i8** [[T2]], i8** [[T3]]) |
| 19 | // CHECK-NEXT: [[T0:%.*]] = bitcast [[A]]** [[DEST]] to i8** |
| 20 | // CHECK: call void @objc_destroyWeak(i8** [[T0]]) |