blob: 0f36a6a753248ae90b6a6e3420cae35486318b9c [file] [log] [blame]
// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -fvisibility hidden -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-HIDDEN
#define HIDDEN __attribute__((visibility("hidden")))
#define PROTECTED __attribute__((visibility("protected")))
#define DEFAULT __attribute__((visibility("default")))
// CHECK: @_ZN5Test425VariableInHiddenNamespaceE = hidden global i32 10
// CHECK: @_ZN5Test71aE = hidden global
// CHECK: @_ZN5Test71bE = global
// CHECK: @test9_var = global
// CHECK-HIDDEN: @test9_var = global
// CHECK: @_ZN6Test121A6hiddenE = external hidden global
// CHECK: @_ZN6Test121A7visibleE = external global
// CHECK-HIDDEN: @_ZN6Test121A6hiddenE = external hidden global
// CHECK-HIDDEN: @_ZN6Test121A7visibleE = external global
// CHECK: @_ZN6Test131B1aE = hidden global
// CHECK: @_ZN6Test131C1aE = global
// CHECK-HIDDEN: @_ZN6Test131B1aE = hidden global
// CHECK-HIDDEN: @_ZN6Test131C1aE = global
// CHECK: @_ZN6Test143varE = external global
// CHECK-HIDDEN: @_ZN6Test143varE = external global
// CHECK: @_ZN6Test154TempINS_1AEE5Inner6bufferE = external global [0 x i8]
// CHECK-HIDDEN: @_ZN6Test154TempINS_1AEE5Inner6bufferE = external global [0 x i8]
// CHECK: @_ZZN6Test193fooIiEEvvE1a = linkonce_odr global
// CHECK: @_ZGVZN6Test193fooIiEEvvE1a = linkonce_odr global i64
// CHECK-HIDDEN: @_ZZN6Test193fooIiEEvvE1a = linkonce_odr hidden global
// CHECK-HIDDEN: @_ZGVZN6Test193fooIiEEvvE1a = linkonce_odr hidden global i64
// CHECK-HIDDEN: @_ZTVN6Test161AIcEE = external unnamed_addr constant
// CHECK-HIDDEN: @_ZTTN6Test161AIcEE = external unnamed_addr constant
// CHECK: @_ZTVN5Test63fooE = linkonce_odr hidden unnamed_addr constant
namespace Test1 {
// CHECK: define hidden void @_ZN5Test11fEv
void HIDDEN f() { }
}
namespace Test2 {
struct HIDDEN A {
void f();
};
// A::f is a member function of a hidden class.
// CHECK: define hidden void @_ZN5Test21A1fEv
void A::f() { }
}
namespace Test3 {
struct HIDDEN A {
struct B {
void f();
};
};
// B is a nested class where its parent class is hidden.
// CHECK: define hidden void @_ZN5Test31A1B1fEv
void A::B::f() { }
}
namespace Test4 HIDDEN {
int VariableInHiddenNamespace = 10;
// Test4::g is in a hidden namespace.
// CHECK: define hidden void @_ZN5Test41gEv
void g() { }
struct DEFAULT A {
void f();
};
// A has default visibility.
// CHECK: define void @_ZN5Test41A1fEv
void A::f() { }
}
namespace Test5 {
namespace NS HIDDEN {
// f is in NS which is hidden.
// CHECK: define hidden void @_ZN5Test52NS1fEv()
void f() { }
}
namespace NS {
// g is in NS, but this NS decl is not hidden.
// CHECK: define void @_ZN5Test52NS1gEv
void g() { }
}
}
// <rdar://problem/8091955>
namespace Test6 {
struct HIDDEN foo {
foo() { }
void bonk();
virtual void bar() = 0;
virtual void zonk() {}
};
struct barc : public foo {
barc();
virtual void bar();
};
barc::barc() {}
}
namespace Test7 {
class HIDDEN A {};
A a; // top of file
template <A&> struct Aref {
static void foo() {}
};
class B : public A {};
B b; // top of file
// CHECK: define linkonce_odr hidden void @_ZN5Test74ArefILZNS_1aEEE3fooEv()
void test() {
Aref<a>::foo();
}
}
namespace Test8 {
void foo();
void bar() {}
// CHECK-HIDDEN: define hidden void @_ZN5Test83barEv()
// CHECK-HIDDEN: declare void @_ZN5Test83fooEv()
void test() {
foo();
bar();
}
}
// PR8457
namespace Test9 {
extern "C" {
struct A { int field; };
void DEFAULT test9_fun(struct A *a) { }
struct A DEFAULT test9_var; // above
}
// CHECK: define void @test9_fun(
// CHECK-HIDDEN: define void @test9_fun(
void test() {
A a = test9_var;
test9_fun(&a);
}
}
// PR8478
namespace Test10 {
struct A;
DEFAULT class B {
void foo(A*);
};
// CHECK: define void @_ZN6Test101B3fooEPNS_1AE(
// CHECK-HIDDEN: define void @_ZN6Test101B3fooEPNS_1AE(
void B::foo(A*) {}
}
// PR8492
namespace Test11 {
struct A {
void foo() {}
void DEFAULT bar() {}
};
void test() {
A a;
a.foo();
a.bar();
}
// CHECK: define linkonce_odr void @_ZN6Test111A3fooEv(
// CHECK: define linkonce_odr void @_ZN6Test111A3barEv(
// CHECK-HIDDEN: define linkonce_odr hidden void @_ZN6Test111A3fooEv(
// CHECK-HIDDEN: define linkonce_odr void @_ZN6Test111A3barEv(
}
// Tested at top of file.
namespace Test12 {
struct A {
// This is hidden in all cases: the explicit attribute takes
// priority over -fvisibility on the parent.
static int hidden HIDDEN;
// This is default in all cases because it's only a declaration.
static int visible;
};
void test() {
A::hidden = 0;
A::visible = 0;
}
}
// Tested at top of file.
namespace Test13 {
struct HIDDEN A {};
// Should be hidden in all cases.
struct B {
static A a;
};
A B::a;
// Should be default in all cases.
struct DEFAULT C {
static A a;
};
A C::a;
};
// Tested at top of file.
namespace Test14 {
// Neither the visibility of the type nor -fvisibility=hidden should
// apply to declarations.
extern struct A *var;
struct A *test() { return var; }
}
// rdar://problem/8613093
namespace Test15 {
struct A {};
template <class T> struct Temp {
struct Inner {
static char buffer[0];
};
};
char *test() {
return Temp<A>::Inner::buffer;
}
}
namespace Test16 {
struct Base1 { virtual void foo(); };
struct Base2 : virtual Base1 { virtual void foo(); };
template <class T> struct A : virtual Base1, Base2 {
virtual void foo();
};
extern template struct A<char>;
void test() {
A<char> a;
a.foo();
}
}
namespace Test17 {
struct HIDDEN A {
static void foo();
static void DEFAULT bar();
static void HIDDEN baz();
struct DEFAULT B {
static void foo();
static void DEFAULT bar();
static void HIDDEN baz();
};
};
void test() {
A::foo();
A::bar();
A::baz();
A::B::foo();
A::B::bar();
A::B::baz();
}
// CHECK: declare hidden void @_ZN6Test171A3fooEv()
// CHECK: declare void @_ZN6Test171A3barEv()
// CHECK: declare hidden void @_ZN6Test171A3bazEv()
// CHECK: declare void @_ZN6Test171A1B3fooEv()
// CHECK: declare void @_ZN6Test171A1B3barEv()
// CHECK: declare hidden void @_ZN6Test171A1B3bazEv()
// CHECK-HIDDEN: declare hidden void @_ZN6Test171A3fooEv()
// CHECK-HIDDEN: declare void @_ZN6Test171A3barEv()
// CHECK-HIDDEN: declare hidden void @_ZN6Test171A3bazEv()
// CHECK-HIDDEN: declare void @_ZN6Test171A1B3fooEv()
// CHECK-HIDDEN: declare void @_ZN6Test171A1B3barEv()
// CHECK-HIDDEN: declare hidden void @_ZN6Test171A1B3bazEv()
}
namespace Test18 {
template <class T> struct HIDDEN A {
static void foo();
static void DEFAULT bar();
static void HIDDEN baz();
struct DEFAULT B {
static void foo();
static void DEFAULT bar();
static void HIDDEN baz();
};
};
struct HIDDEN H;
void test() {
A<int>::foo();
A<int>::bar();
A<int>::baz();
A<int>::B::foo();
A<int>::B::bar();
A<int>::B::baz();
A<H>::foo();
A<H>::bar();
A<H>::baz();
A<H>::B::foo();
A<H>::B::bar();
A<H>::B::baz();
}
// CHECK: declare hidden void @_ZN6Test181AIiE3fooEv()
// CHECK: declare void @_ZN6Test181AIiE3barEv()
// CHECK: declare hidden void @_ZN6Test181AIiE3bazEv()
// CHECK: declare void @_ZN6Test181AIiE1B3fooEv()
// CHECK: declare void @_ZN6Test181AIiE1B3barEv()
// CHECK: declare hidden void @_ZN6Test181AIiE1B3bazEv()
// CHECK: declare hidden void @_ZN6Test181AINS_1HEE3fooEv()
// CHECK: declare hidden void @_ZN6Test181AINS_1HEE3barEv()
// CHECK: declare hidden void @_ZN6Test181AINS_1HEE3bazEv()
// CHECK: declare hidden void @_ZN6Test181AINS_1HEE1B3fooEv()
// CHECK: declare hidden void @_ZN6Test181AINS_1HEE1B3barEv()
// CHECK: declare hidden void @_ZN6Test181AINS_1HEE1B3bazEv()
// CHECK-HIDDEN: declare hidden void @_ZN6Test181AIiE3fooEv()
// CHECK-HIDDEN: declare void @_ZN6Test181AIiE3barEv()
// CHECK-HIDDEN: declare hidden void @_ZN6Test181AIiE3bazEv()
// CHECK-HIDDEN: declare void @_ZN6Test181AIiE1B3fooEv()
// CHECK-HIDDEN: declare void @_ZN6Test181AIiE1B3barEv()
// CHECK-HIDDEN: declare hidden void @_ZN6Test181AIiE1B3bazEv()
// CHECK-HIDDEN: declare hidden void @_ZN6Test181AINS_1HEE3fooEv()
// CHECK-HIDDEN: declare hidden void @_ZN6Test181AINS_1HEE3barEv()
// CHECK-HIDDEN: declare hidden void @_ZN6Test181AINS_1HEE3bazEv()
// CHECK-HIDDEN: declare hidden void @_ZN6Test181AINS_1HEE1B3fooEv()
// CHECK-HIDDEN: declare hidden void @_ZN6Test181AINS_1HEE1B3barEv()
// CHECK-HIDDEN: declare hidden void @_ZN6Test181AINS_1HEE1B3bazEv()
}
namespace Test19 {
struct A { A(); ~A(); };
// Tested at top of file.
template <class T> void foo() {
static A a;
}
void test() {
foo<int>();
}
}
// Various things with class template specializations.
namespace Test20 {
template <unsigned> struct HIDDEN A {};
// An explicit specialization inherits the explicit visibility of
// the template.
template <> struct A<0> {
static void test0();
static void test1();
};
// CHECK: define hidden void @_ZN6Test201AILj0EE5test0Ev()
void A<0>::test0() {}
// CHECK: declare hidden void @_ZN6Test201AILj0EE5test1Ev()
void test1() {
A<0>::test1();
}
// ...unless that's explicitly overridden.
template <> struct DEFAULT A<1> {
static void test2();
static void test3();
};
// CHECK: define void @_ZN6Test201AILj1EE5test2Ev()
void A<1>::test2() {}
// CHECK: declare void @_ZN6Test201AILj1EE5test3Ev()
void test3() {
A<1>::test3();
}
// <rdar://problem/8778497>
// But we should assume that an unknown specialization has the
// explicit visibility settings of the template.
template <class T> struct B {
static void test4() {}
static void test5();
};
// CHECK: define linkonce_odr hidden void @_ZN6Test201BINS_1AILj2EEEE5test4Ev()
void test4() {
B<A<2> >::test4();
}
// CHECK: declare void @_ZN6Test201BINS_1AILj2EEEE5test5Ev()
// (but explicit visibility on a template argument doesn't count as
// explicit visibility for the template for purposes of deciding
// whether an external symbol gets visibility)
void test5() {
B<A<2> >::test5();
}
}
// PR9371
namespace test21 {
enum En { en };
template<En> struct A {
__attribute__((visibility("default"))) void foo() {}
};
// CHECK: define weak_odr void @_ZN6test211AILNS_2EnE0EE3fooEv(
template void A<en>::foo();
}
// rdar://problem/9616154
// Visibility on explicit specializations should take precedence.
namespace test22 {
class A1 {};
class A2 {};
template <class T> struct B {};
template <> struct DEFAULT B<A1> {
static void foo();
static void bar() {}
};
template <> struct B<A2> {
static void foo();
static void bar() {}
};
void test() {
B<A1>::foo();
B<A1>::bar();
B<A2>::foo();
B<A2>::bar();
}
// CHECK: declare void @_ZN6test221BINS_2A1EE3fooEv()
// CHECK: define linkonce_odr void @_ZN6test221BINS_2A1EE3barEv()
// CHECK: declare void @_ZN6test221BINS_2A2EE3fooEv()
// CHECK: define linkonce_odr void @_ZN6test221BINS_2A2EE3barEv()
// CHECK-HIDDEN: declare void @_ZN6test221BINS_2A1EE3fooEv()
// CHECK-HIDDEN: define linkonce_odr void @_ZN6test221BINS_2A1EE3barEv()
// CHECK-HIDDEN: declare void @_ZN6test221BINS_2A2EE3fooEv()
// CHECK-HIDDEN: define linkonce_odr hidden void @_ZN6test221BINS_2A2EE3barEv()
}