1// RUN: %clang_cc1 %s -triple=arm64-apple-ios -emit-llvm -o - | FileCheck %s
2// RUN: %clang_cc1 %s -triple=arm64-apple-ios -emit-llvm -o - | FileCheck -check-prefix=CHECK-GLOBALS %s
3
4// __cxa_guard_acquire argument is 64-bit
5// rdar://11540122
6struct A {
7  A();
8};
9
10void f() {
11  // CHECK: call i32 @__cxa_guard_acquire(i64*
12  static A a;
13}
14
15// ARM64 uses the C++11 definition of POD.
16// rdar://12650514
17namespace test1 {
18  // This class is POD in C++11 and cannot have objects allocated in
19  // its tail-padding.
20  struct ABase {};
21  struct A : ABase {
22    int x;
23    char c;
24  };
25
26  struct B : A {
27    char d;
28  };
29
30  int test() {
31    return sizeof(B);
32  }
33  // CHECK: define i32 @_ZN5test14testEv()
34  // CHECK: ret i32 12
35}
36
37namespace std {
38  class type_info;
39}
40
41// ARM64 uses string comparisons for what would otherwise be
42// default-visibility weak RTTI.  rdar://12650568
43namespace test2 {
44  struct A {
45    virtual void foo();
46  };
47  void A::foo() {}
48  // CHECK-GLOBALS-DAG: @_ZTSN5test21AE = constant [11 x i8]
49  // CHECK-GLOBALS-DAG: @_ZTIN5test21AE = constant { {{.*}}, i8* getelementptr inbounds ([11 x i8], [11 x i8]* @_ZTSN5test21AE, i32 0, i32 0) }
50
51  struct __attribute__((visibility("hidden"))) B {};
52  const std::type_info &b0 = typeid(B);
53  // CHECK-GLOBALS-DAG: @_ZTSN5test21BE = linkonce_odr hidden constant
54  // CHECK-GLOBALS-DAG: @_ZTIN5test21BE = linkonce_odr hidden constant { {{.*}}, i8* getelementptr inbounds ([11 x i8], [11 x i8]* @_ZTSN5test21BE, i32 0, i32 0) }
55
56  const std::type_info &b1 = typeid(B*);
57  // CHECK-GLOBALS-DAG: @_ZTSPN5test21BE = linkonce_odr hidden constant
58  // CHECK-GLOBALS-DAG: @_ZTIPN5test21BE = linkonce_odr hidden constant { {{.*}}, i8* getelementptr inbounds ([12 x i8], [12 x i8]* @_ZTSPN5test21BE, i32 0, i32 0), i32 0, i8* bitcast
59
60  struct C {};
61  const std::type_info &c0 = typeid(C);
62  // CHECK-GLOBALS-DAG: @_ZTSN5test21CE = linkonce_odr hidden constant
63  // CHECK-GLOBALS-DAG: @_ZTIN5test21CE = linkonce_odr hidden constant { {{.*}}, i8* inttoptr (i64 add (i64 ptrtoint ([11 x i8]* @_ZTSN5test21CE to i64), i64 -9223372036854775808) to i8*) }
64
65  const std::type_info &c1 = typeid(C*);
66  // CHECK-GLOBALS-DAG: @_ZTSPN5test21CE = linkonce_odr hidden constant
67  // CHECK-GLOBALS-DAG: @_ZTIPN5test21CE = linkonce_odr hidden constant { {{.*}}, i8* inttoptr (i64 add (i64 ptrtoint ([12 x i8]* @_ZTSPN5test21CE to i64), i64 -9223372036854775808) to i8*), i32 0, i8* bitcast
68
69  // This class is explicitly-instantiated, but that instantiation
70  // doesn't guarantee to emit RTTI, so we can still demote the visibility.
71  template <class T> class D {};
72  template class D<int>;
73  const std::type_info &d0 = typeid(D<int>);
74  // CHECK-GLOBALS-DAG: @_ZTSN5test21DIiEE = linkonce_odr hidden constant
75  // CHECK-GLOBALS-DAG: @_ZTIN5test21DIiEE = linkonce_odr hidden constant { {{.*}}, i8* inttoptr (i64 add (i64 ptrtoint ([14 x i8]* @_ZTSN5test21DIiEE to i64), i64 -9223372036854775808) to i8*) }
76
77  // This class is explicitly-instantiated and *does* guarantee to
78  // emit RTTI, so we're stuck with having to use default visibility.
79  template <class T> class E {
80    virtual void foo() {}
81  };
82  template class E<int>;
83  // CHECK-GLOBALS-DAG: @_ZTSN5test21EIiEE = weak_odr constant [14 x i8]
84  // CHECK-GLOBALS-DAG: @_ZTIN5test21EIiEE = weak_odr constant { {{.*}}, i8* inttoptr (i64 add (i64 ptrtoint ([14 x i8]* @_ZTSN5test21EIiEE to i64), i64 -9223372036854775808) to i8*) }
85
86}
87