1// RUN: %clang_cc1 -emit-llvm -O1 -o - -triple=i386-pc-win32 %s | FileCheck %s
2
3struct type_info;
4namespace std { using ::type_info; }
5
6struct V { virtual void f(); };
7struct A : virtual V { A(); };
8
9extern A a;
10extern V v;
11extern int b;
12A* fn();
13
14const std::type_info* test0_typeid() { return &typeid(int); }
15// CHECK-LABEL: define %struct.type_info* @"\01?test0_typeid@@YAPBUtype_info@@XZ"()
16// CHECK:   ret %struct.type_info* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to %struct.type_info*)
17
18const std::type_info* test1_typeid() { return &typeid(A); }
19// CHECK-LABEL: define %struct.type_info* @"\01?test1_typeid@@YAPBUtype_info@@XZ"()
20// CHECK:   ret %struct.type_info* bitcast (%rtti.TypeDescriptor7* @"\01??_R0?AUA@@@8" to %struct.type_info*)
21
22const std::type_info* test2_typeid() { return &typeid(&a); }
23// CHECK-LABEL: define %struct.type_info* @"\01?test2_typeid@@YAPBUtype_info@@XZ"()
24// CHECK:   ret %struct.type_info* bitcast (%rtti.TypeDescriptor7* @"\01??_R0PAUA@@@8" to %struct.type_info*)
25
26const std::type_info* test3_typeid() { return &typeid(*fn()); }
27// CHECK-LABEL: define %struct.type_info* @"\01?test3_typeid@@YAPBUtype_info@@XZ"()
28// CHECK:        [[CALL:%.*]] = tail call %struct.A* @"\01?fn@@YAPAUA@@XZ"()
29// CHECK-NEXT:   [[CMP:%.*]] = icmp eq %struct.A* [[CALL]], null
30// CHECK-NEXT:   br i1 [[CMP]]
31// CHECK:        tail call i8* @__RTtypeid(i8* null)
32// CHECK-NEXT:   unreachable
33// CHECK:        [[THIS:%.*]] = bitcast %struct.A* [[CALL]] to i8*
34// CHECK-NEXT:   [[VBTBLP:%.*]] = bitcast %struct.A* [[CALL]] to i8**
35// CHECK-NEXT:   [[VBTBL:%.*]] = load i8** [[VBTBLP]], align 4
36// CHECK-NEXT:   [[VBSLOT:%.*]] = getelementptr inbounds i8* [[VBTBL]], i32 4
37// CHECK-NEXT:   [[VBITCST:%.*]] = bitcast i8* [[VBSLOT]] to i32*
38// CHECK-NEXT:   [[VBASE_OFFS:%.*]] = load i32* [[VBITCST]], align 4
39// CHECK-NEXT:   [[ADJ:%.*]] = getelementptr inbounds i8* [[THIS]], i32 [[VBASE_OFFS]]
40// CHECK-NEXT:   [[RT:%.*]] = tail call i8* @__RTtypeid(i8* [[ADJ]])
41// CHECK-NEXT:   [[RET:%.*]] = bitcast i8* [[RT]] to %struct.type_info*
42// CHECK-NEXT:   ret %struct.type_info* [[RET]]
43
44const std::type_info* test4_typeid() { return &typeid(b); }
45// CHECK: define %struct.type_info* @"\01?test4_typeid@@YAPBUtype_info@@XZ"()
46// CHECK:   ret %struct.type_info* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to %struct.type_info*)
47
48const std::type_info* test5_typeid() { return &typeid(v); }
49// CHECK: define %struct.type_info* @"\01?test5_typeid@@YAPBUtype_info@@XZ"()
50// CHECK:        [[RT:%.*]] = tail call i8* @__RTtypeid(i8* bitcast (%struct.V* @"\01?v@@3UV@@A" to i8*))
51// CHECK-NEXT:   [[RET:%.*]] = bitcast i8* [[RT]] to %struct.type_info*
52// CHECK-NEXT:   ret %struct.type_info* [[RET]]
53