1 // RUN: %clang_cc1 -flto -flto-unit -triple x86_64-unknown-linux -emit-llvm -fvirtual-function-elimination -fwhole-program-vtables -o - %s | FileCheck %s
2 
3 
4 // Anonymous namespace.
5 namespace {
6 // CHECK: @_ZTVN12_GLOBAL__N_11AE = {{.*}} !vcall_visibility [[VIS_TU:![0-9]+]]
7 struct A {
8   A() {}
9   virtual int f() { return 1; }
10 };
11 }
12 void *construct_A() {
13   return new A();
14 }
15 
16 
17 // Hidden visibility.
18 // CHECK: @_ZTV1B = {{.*}} !vcall_visibility [[VIS_DSO:![0-9]+]]
19 struct __attribute__((visibility("hidden"))) B {
20   B() {}
21   virtual int f() { return 1; }
22 };
23 B *construct_B() {
24   return new B();
25 }
26 
27 
28 // Default visibility.
29 // CHECK-NOT: @_ZTV1C = {{.*}} !vcall_visibility
30 struct __attribute__((visibility("default"))) C {
31   C() {}
32   virtual int f() { return 1; }
33 };
34 C *construct_C() {
35   return new C();
36 }
37 
38 
39 // Hidden visibility, public LTO visibility.
40 // CHECK-NOT: @_ZTV1D = {{.*}} !vcall_visibility
41 struct __attribute__((visibility("hidden"))) [[clang::lto_visibility_public]] D {
42   D() {}
43   virtual int f() { return 1; }
44 };
45 D *construct_D() {
46   return new D();
47 }
48 
49 
50 // Hidden visibility, but inherits from class with default visibility.
51 // CHECK-NOT: @_ZTV1E = {{.*}} !vcall_visibility
52 struct __attribute__((visibility("hidden"))) E : C {
53   E() {}
54   virtual int f() { return 1; }
55 };
56 E *construct_E() {
57   return new E();
58 }
59 
60 
61 // Anonymous namespace, but inherits from class with default visibility.
62 // CHECK-NOT: @_ZTVN12_GLOBAL__N_11FE = {{.*}} !vcall_visibility
63 namespace {
64 struct __attribute__((visibility("hidden"))) F : C {
65   F() {}
66   virtual int f() { return 1; }
67 };
68 }
69 void *construct_F() {
70   return new F();
71 }
72 
73 
74 // Anonymous namespace, but inherits from class with hidden visibility.
75 // CHECK: @_ZTVN12_GLOBAL__N_11GE = {{.*}} !vcall_visibility [[VIS_DSO:![0-9]+]]
76 namespace {
77 struct __attribute__((visibility("hidden"))) G : B {
78   G() {}
79   virtual int f() { return 1; }
80 };
81 }
82 void *construct_G() {
83   return new G();
84 }
85 
86 
87 // CHECK-DAG: [[VIS_DSO]] = !{i64 1}
88 // CHECK-DAG: [[VIS_TU]] = !{i64 2}
89