// RUN: %clang_cc1 %s -std=c++11 -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 %s -std=c++11 -triple=x86_64-apple-darwin10 -fvisibility=hidden -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-HIDDEN
// For clang, "internal" is just an alias for "hidden". We could use it for some
// optimization purposes on 32-bit x86, but it's not worth it.
// RUN: %clang_cc1 %s -std=c++11 -triple=x86_64-apple-darwin10 -fvisibility=internal -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-HIDDEN
#define HIDDEN __attribute__((visibility("hidden")))
#define PROTECTED __attribute__((visibility("protected")))
#define DEFAULT __attribute__((visibility("default")))
namespace test30 {
// When H is hidden, it should make X hidden, even if the template argument
// is not.
struct H {
};
template<H *T>
struct X {
};
H DEFAULT a;
X<&a> b;
// CHECK: _ZN6test301bE = global
// CHECK-HIDDEN: _ZN6test301bE = hidden global
}
namespace test25 {
template<typename T>
struct X {
template<typename U>
struct definition {
};
};
class DEFAULT A { };
X<int>::definition<A> a;
// CHECK: @_ZN6test251aE = global
// CHECK-HIDDEN: @_ZN6test251aE = hidden global
}
namespace test28 {
class DEFAULT foo {
};
foo myvec;
// CHECK: @_ZN6test285myvecE = global
// CHECK-HIDDEN: @_ZN6test285myvecE = hidden global
}
namespace test29 {
#pragma GCC visibility push(hidden)
struct RECT {
int top;
};
DEFAULT extern RECT data_rect;
RECT data_rect = { -1};
#pragma GCC visibility pop
// CHECK: @_ZN6test299data_rectE = global
// CHECK-HIDDEN: @_ZN6test299data_rectE = global
}
namespace test40 {
template<typename T>
struct foo {
DEFAULT static int bar;
};
template<typename T>
int foo<T>::bar;
template struct foo<int>;
// CHECK: _ZN6test403fooIiE3barE = weak_odr global
// CHECK-HIDDEN: _ZN6test403fooIiE3barE = weak_odr global
}
namespace test41 {
// Unlike gcc we propagate the information that foo not only is hidden, but
// has been explicitly marked as so. This lets us produce a hidden undefined
// reference to bar.
struct HIDDEN foo {};
extern foo bar;
foo *zed() {
return &bar;
}
// CHECK: @_ZN6test413barE = external hidden global
// CHECK-HIDDEN: @_ZN6test413barE = external hidden global
}
namespace test48 {
// Test that we use the visibility of struct foo when instantiating the
// template. Note that is a case where we disagree with gcc, it produces
// a default symbol.
struct HIDDEN foo {
};
DEFAULT foo x;
struct bar {
template<foo *z>
struct zed {
};
};
bar::zed<&x> y;
// CHECK: _ZN6test481yE = hidden global
// CHECK-HIDDEN: _ZN6test481yE = hidden global
}
namespace test72 {
template <class T>
struct foo {
HIDDEN static int var1;
template <class U> HIDDEN static U var2;
};
template <class T> template <class U>
U foo<T>::var2;
extern template struct DEFAULT foo<int>;
int use() {
foo<int> o;
foo<long> p;
return o.var1 + o.var2<int> + p.var1 + p.var2<int>;
}
// CHECK: @_ZN6test723fooIiE4var1E = external hidden global i32
// CHECK-NEXT: @_ZN6test723fooIiE4var2IiEE = linkonce_odr global i32 0
// CHECK-NEXT: @_ZN6test723fooIlE4var1E = external hidden global i32
// CHECK-NEXT: @_ZN6test723fooIlE4var2IiEE = linkonce_odr global i32 0
}
namespace test73 {
struct HIDDEN foo {};
DEFAULT foo da, db, dc, dd;
HIDDEN foo ha, hb, hc, hd;
template<foo *z> DEFAULT int var;
template int var<&da>;
template int DEFAULT var<&db>;
template int HIDDEN var<&dc>;
template int var<&ha>;
template int DEFAULT var<&hb>;
template int HIDDEN var<&hc>;
int use() { return var<&dd> + var<&hd>; }
// CHECK: @_ZN6test733varIXadL_ZNS_2daEEEEE = weak_odr hidden global i32 0
// CHECK-NEXT: @_ZN6test733varIXadL_ZNS_2dbEEEEE = weak_odr global i32 0
// CHECK-NEXT: @_ZN6test733varIXadL_ZNS_2dcEEEEE = weak_odr hidden global i32 0
// CHECK-NEXT: @_ZN6test733varIXadL_ZNS_2haEEEEE = weak_odr hidden global i32 0
// CHECK-NEXT: @_ZN6test733varIXadL_ZNS_2hbEEEEE = weak_odr global i32 0
// CHECK-NEXT: @_ZN6test733varIXadL_ZNS_2hcEEEEE = weak_odr hidden global i32 0
// CHECK: @_ZN6test733varIXadL_ZNS_2ddEEEEE = linkonce_odr hidden global i32 0
// CHECK-NEXT: @_ZN6test733varIXadL_ZNS_2hdEEEEE = linkonce_odr hidden global i32 0
// CHECK-HIDDEN: @_ZN6test733varIXadL_ZNS_2daEEEEE = weak_odr hidden global i32 0
// CHECK-HIDDEN-NEXT: @_ZN6test733varIXadL_ZNS_2dbEEEEE = weak_odr global i32 0
// CHECK-HIDDEN-NEXT: @_ZN6test733varIXadL_ZNS_2dcEEEEE = weak_odr hidden global i32 0
// CHECK-HIDDEN-NEXT: @_ZN6test733varIXadL_ZNS_2haEEEEE = weak_odr hidden global i32 0
// CHECK-HIDDEN-NEXT: @_ZN6test733varIXadL_ZNS_2hbEEEEE = weak_odr global i32 0
// CHECK-HIDDEN-NEXT: @_ZN6test733varIXadL_ZNS_2hcEEEEE = weak_odr hidden global i32 0
// CHECK-HIDDEN: @_ZN6test733varIXadL_ZNS_2ddEEEEE = linkonce_odr hidden global i32 0
// CHECK-HIDDEN-NEXT: @_ZN6test733varIXadL_ZNS_2hdEEEEE = linkonce_odr hidden global i32 0
}
// 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: @_ZTVN6test701BE = external hidden unnamed_addr constant { [5 x ptr] }, align 8
// CHECK: @_ZTTN6test701BE = external hidden unnamed_addr constant [2 x ptr], align 8
namespace test27 {
template<typename T>
class C {
class DEFAULT D {
void f();
};
};
template<>
class C<int>::D {
virtual void g();
};
void C<int>::D::g() {
}
// CHECK: _ZTVN6test271CIiE1DE = unnamed_addr constant
// CHECK-HIDDEN: _ZTVN6test271CIiE1DE = unnamed_addr constant
}
// CHECK: @_ZTVN5Test63fooE = linkonce_odr hidden unnamed_addr constant
// CHECK-HIDDEN: @_ZTVN6Test161AIcEE = external unnamed_addr constant
// CHECK-HIDDEN: @_ZTTN6Test161AIcEE = external unnamed_addr constant
// CHECK: @_ZZN6test681fC1EvE4test = linkonce_odr global
// CHECK-HIDDEN: @_ZZN6test681fC1EvE4test = linkonce_odr hidden global
// CHECK: @_ZGVZN6test681fC1EvE4test = linkonce_odr global
// CHECK-HIDDEN: @_ZGVZN6test681fC1EvE4test = linkonce_odr hidden global
// CHECK-HIDDEN: @_ZTVN6test701DE = linkonce_odr hidden unnamed_addr constant { [3 x ptr] } { [3 x ptr] [ptr null, ptr null, ptr @_ZTIN6test701DE] }, align 8
// CHECK-HIDDEN: @_ZTTN6test701DE = linkonce_odr hidden unnamed_addr constant [1 x ptr] [ptr getelementptr inbounds inrange(-24, 0) ({ [3 x ptr] }, ptr @_ZTVN6test701DE, i32 0, i32 0, i32 3)], align 8
// CHECK: @_ZZN6Test193fooIiEEvvE1a = linkonce_odr global
// CHECK-HIDDEN: @_ZZN6Test193fooIiEEvvE1a = linkonce_odr hidden global
// CHECK: @_ZGVZN6Test193fooIiEEvvE1a = linkonce_odr global i64
// CHECK-HIDDEN: @_ZGVZN6Test193fooIiEEvvE1a = linkonce_odr hidden global i64
namespace Test1 {
// CHECK-LABEL: 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-LABEL: 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-LABEL: define hidden void @_ZN5Test31A1B1fEv
void A::B::f() { }
}
namespace Test4 HIDDEN {
int VariableInHiddenNamespace = 10;
// Test4::g is in a hidden namespace.
// CHECK-LABEL: define hidden void @_ZN5Test41gEv
void g() { }
struct DEFAULT A {
void f();
};
// A has default visibility.
// CHECK-LABEL: define void @_ZN5Test41A1fEv
void A::f() { }
}
namespace Test5 {
namespace NS HIDDEN {
// f is in NS which is hidden.
// CHECK-LABEL: define hidden void @_ZN5Test52NS1fEv()
void f() { }
}
namespace NS {
// g is in NS, but this NS decl is not hidden.
// CHECK-LABEL: define void @_ZN5Test52NS1gEv
void g() { }
}
}
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-LABEL: define linkonce_odr hidden void @_ZN5Test74ArefIL_ZNS_1aEEE3fooEv()
void test() {
Aref<a>::foo();
}
}
namespace Test8 {
void foo();
void bar() {}
// CHECK-HIDDEN-LABEL: 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-LABEL: define void @test9_fun(
// CHECK-HIDDEN-LABEL: define void @test9_fun(
void test() {
A a = test9_var;
test9_fun(&a);
}
}
// PR8478
namespace Test10 {
struct A;
class DEFAULT B {
void foo(A*);
};
// CHECK-LABEL: define void @_ZN6Test101B3fooEPNS_1AE(
// CHECK-HIDDEN-LABEL: 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-LABEL: define linkonce_odr void @_ZN6Test111A3fooEv(
// CHECK-LABEL: define linkonce_odr void @_ZN6Test111A3barEv(
// CHECK-HIDDEN-LABEL: define linkonce_odr hidden void @_ZN6Test111A3fooEv(
// CHECK-HIDDEN-LABEL: 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; }
}
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-LABEL: 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-LABEL: define void @_ZN6Test201AILj1EE5test2Ev()
void A<1>::test2() {}
// CHECK: declare void @_ZN6Test201AILj1EE5test3Ev()
void test3() {
A<1>::test3();
}
// 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-LABEL: define linkonce_odr hidden void @_ZN6Test201BINS_1AILj2EEEE5test4Ev()
void test4() {
B<A<2> >::test4();
}
// CHECK: declare hidden void @_ZN6Test201BINS_1AILj2EEEE5test5Ev()
void test5() {
B<A<2> >::test5();
}
}
// PR9371
namespace test21 {
enum En { en };
template<En> struct A {
DEFAULT void foo() {}
};
// CHECK-LABEL: define weak_odr void @_ZN6test211AILNS_2EnE0EE3fooEv(
template void A<en>::foo();
}
// 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-LABEL: define linkonce_odr void @_ZN6test221BINS_2A1EE3barEv()
// CHECK: declare void @_ZN6test221BINS_2A2EE3fooEv()
// CHECK-LABEL: define linkonce_odr void @_ZN6test221BINS_2A2EE3barEv()
// CHECK-HIDDEN: declare void @_ZN6test221BINS_2A1EE3fooEv()
// CHECK-HIDDEN-LABEL: define linkonce_odr void @_ZN6test221BINS_2A1EE3barEv()
// CHECK-HIDDEN: declare void @_ZN6test221BINS_2A2EE3fooEv()
// CHECK-HIDDEN-LABEL: define linkonce_odr hidden void @_ZN6test221BINS_2A2EE3barEv()
}
namespace PR10113 {
namespace foo DEFAULT {
template<typename T>
class bar {
void zed() {}
};
}
template class foo::bar<char>;
// CHECK-LABEL: define weak_odr void @_ZN7PR101133foo3barIcE3zedEv
// CHECK-HIDDEN-LABEL: define weak_odr void @_ZN7PR101133foo3barIcE3zedEv
struct zed {
};
template class foo::bar<zed>;
// CHECK-LABEL: define weak_odr void @_ZN7PR101133foo3barINS_3zedEE3zedEv
// CHECK-HIDDEN-LABEL: define weak_odr hidden void @_ZN7PR101133foo3barINS_3zedEE3zedEv
}
namespace PR11690 {
template<class T> struct Class {
void size() const {
}
};
template class DEFAULT Class<char>;
// CHECK-LABEL: define weak_odr void @_ZNK7PR116905ClassIcE4sizeEv
// CHECK-HIDDEN-LABEL: define weak_odr void @_ZNK7PR116905ClassIcE4sizeEv
template<class T> void Method() {}
template DEFAULT void Method<char>();
// CHECK-LABEL: define weak_odr void @_ZN7PR116906MethodIcEEvv
// CHECK-HIDDEN-LABEL: define weak_odr void @_ZN7PR116906MethodIcEEvv
}
namespace PR11690_2 {
namespace foo DEFAULT {
class bar;
template<typename T1, typename T2 = bar>
class zed {
void bar() {
}
};
}
struct baz {
};
template class foo::zed<baz>;
// CHECK-LABEL: define weak_odr void @_ZN9PR11690_23foo3zedINS_3bazENS0_3barEE3barEv
// CHECK-HIDDEN-LABEL: define weak_odr hidden void @_ZN9PR11690_23foo3zedINS_3bazENS0_3barEE3barEv
}
namespace test23 {
// Having a template argument that is explicitly visible should not make
// the template instantiation visible.
template <typename T>
struct X {
static void f() {
}
};
class DEFAULT A;
void g() {
X<A> y;
y.f();
}
// CHECK-LABEL: define linkonce_odr void @_ZN6test231XINS_1AEE1fEv
// CHECK-HIDDEN-LABEL: define linkonce_odr hidden void @_ZN6test231XINS_1AEE1fEv
}
namespace PR12001 {
template <typename P1>
void Bind(const P1& p1) {
}
class DEFAULT Version { };
void f() {
Bind(Version());
}
// CHECK-LABEL: define linkonce_odr void @_ZN7PR120014BindINS_7VersionEEEvRKT_
// CHECK-HIDDEN-LABEL: define linkonce_odr hidden void @_ZN7PR120014BindINS_7VersionEEEvRKT_
}
namespace test24 {
class DEFAULT A { };
struct S {
template <typename T>
void mem() {}
};
void test() {
S s;
s.mem<A>();
}
// CHECK-LABEL: define linkonce_odr void @_ZN6test241S3memINS_1AEEEvv
// CHECK-HIDDEN-LABEL: define linkonce_odr hidden void @_ZN6test241S3memINS_1AEEEvv
}
namespace test26 {
template<typename T>
class C {
DEFAULT void f();
};
template<>
void C<int>::f() { }
// CHECK-LABEL: define void @_ZN6test261CIiE1fEv
// CHECK-HIDDEN-LABEL: define void @_ZN6test261CIiE1fEv
}
namespace test31 {
struct A {
struct HIDDEN B {
static void DEFAULT baz();
};
};
void f() {
A::B::baz();
}
// CHECK: declare void @_ZN6test311A1B3bazEv()
// CHECK-HIDDEN: declare void @_ZN6test311A1B3bazEv()
}
namespace test32 {
struct HIDDEN A {
struct DEFAULT B {
void DEFAULT baz();
};
};
void A::B::baz() {
}
// CHECK-LABEL: define void @_ZN6test321A1B3bazEv
// CHECK-HIDDEN-LABEL: define void @_ZN6test321A1B3bazEv
}
namespace test33 {
template<typename T>
class foo {
void bar() {}
};
struct HIDDEN zed {
};
template class DEFAULT foo<zed>;
// CHECK-LABEL: define weak_odr void @_ZN6test333fooINS_3zedEE3barEv
// CHECK-HIDDEN-LABEL: define weak_odr void @_ZN6test333fooINS_3zedEE3barEv
}
namespace test34 {
struct foo {
};
template<class T>
void bar() {}
template DEFAULT void bar<foo>();
// CHECK-LABEL: define weak_odr void @_ZN6test343barINS_3fooEEEvv
// CHECK-HIDDEN-LABEL: define weak_odr void @_ZN6test343barINS_3fooEEEvv
}
namespace test35 {
// This is a really ugly testcase. GCC propagates the DEFAULT in zed's
// definition. It's not really clear what we can do here, because we
// produce the symbols before even seeing the DEFAULT definition of zed.
// FIXME: Maybe the best thing to do here is error? It's certainly hard
// to argue that this ought to be valid.
template<typename T>
struct DEFAULT foo {
void bar() {}
};
class zed;
template class foo<zed>;
class DEFAULT zed {
};
// CHECK-LABEL: define weak_odr void @_ZN6test353fooINS_3zedEE3barEv
// CHECK-HIDDEN-LABEL: define weak_odr hidden void @_ZN6test353fooINS_3zedEE3barEv
}
namespace test36 {
template<typename T1, typename T2>
class foo {
void bar() {}
};
class DEFAULT S1 {};
struct HIDDEN S2 {};
template class foo<S1, S2>;
// CHECK-LABEL: define weak_odr hidden void @_ZN6test363fooINS_2S1ENS_2S2EE3barEv
// CHECK-HIDDEN-LABEL: define weak_odr hidden void @_ZN6test363fooINS_2S1ENS_2S2EE3barEv
}
namespace test37 {
struct HIDDEN foo {
};
template<class T>
DEFAULT void bar() {}
template DEFAULT void bar<foo>();
// CHECK-LABEL: define weak_odr void @_ZN6test373barINS_3fooEEEvv
// CHECK-HIDDEN-LABEL: define weak_odr void @_ZN6test373barINS_3fooEEEvv
}
namespace test38 {
template<typename T>
class DEFAULT foo {
void bar() {}
};
struct HIDDEN zed {
};
template class foo<zed>;
// CHECK-LABEL: define weak_odr hidden void @_ZN6test383fooINS_3zedEE3barEv
// CHECK-HIDDEN-LABEL: define weak_odr hidden void @_ZN6test383fooINS_3zedEE3barEv
}
namespace test39 {
class DEFAULT default_t;
class HIDDEN hidden_t;
template <class T> class A {
template <class U> class B {
HIDDEN void hidden() {}
void noattr() {}
template <class V> void temp() {}
};
};
template class DEFAULT A<hidden_t>;
template class DEFAULT A<hidden_t>::B<hidden_t>;
template void A<hidden_t>::B<hidden_t>::temp<default_t>();
template void A<hidden_t>::B<hidden_t>::temp<hidden_t>();
// CHECK-LABEL: define weak_odr hidden void @_ZN6test391AINS_8hidden_tEE1BIS1_E6hiddenEv
// CHECK-LABEL: define weak_odr void @_ZN6test391AINS_8hidden_tEE1BIS1_E6noattrEv
// CHECK-LABEL: define weak_odr void @_ZN6test391AINS_8hidden_tEE1BIS1_E4tempINS_9default_tEEEvv
// GCC produces a default for this one. Why?
// CHECK-LABEL: define weak_odr hidden void @_ZN6test391AINS_8hidden_tEE1BIS1_E4tempIS1_EEvv
// CHECK-HIDDEN-LABEL: define weak_odr hidden void @_ZN6test391AINS_8hidden_tEE1BIS1_E6hiddenEv
// CHECK-HIDDEN-LABEL: define weak_odr void @_ZN6test391AINS_8hidden_tEE1BIS1_E6noattrEv
// CHECK-HIDDEN-LABEL: define weak_odr void @_ZN6test391AINS_8hidden_tEE1BIS1_E4tempINS_9default_tEEEvv
// GCC produces a default for this one. Why?
// CHECK-HIDDEN-LABEL: define weak_odr hidden void @_ZN6test391AINS_8hidden_tEE1BIS1_E4tempIS1_EEvv
}
namespace test42 {
struct HIDDEN foo {
};
template <class P>
struct bar {
};
template <>
struct HIDDEN bar<foo> {
DEFAULT static void zed();
};
void bar<foo>::zed() {
}
// CHECK-LABEL: define void @_ZN6test423barINS_3fooEE3zedEv
// CHECK-HIDDEN-LABEL: define void @_ZN6test423barINS_3fooEE3zedEv
}
namespace test43 {
struct HIDDEN foo {
};
template <class P>
void bar() {
}
template <>
DEFAULT void bar<foo>() {
}
// CHECK-LABEL: define void @_ZN6test433barINS_3fooEEEvv
// CHECK-HIDDEN-LABEL: define void @_ZN6test433barINS_3fooEEEvv
}
namespace test44 {
template <typename T>
struct foo {
foo() {}
};
namespace {
struct bar;
}
template struct DEFAULT foo<bar>;
foo<bar> x;
// CHECK-LABEL: define internal void @_ZN6test443fooINS_12_GLOBAL__N_13barEEC1Ev
// CHECK-HIDDEN-LABEL: define internal void @_ZN6test443fooINS_12_GLOBAL__N_13barEEC1Ev
}
namespace test45 {
template <typename T>
struct foo {
template <typename T2>
struct bar {
bar() {};
};
};
namespace {
struct zed;
}
template struct DEFAULT foo<int>::bar<zed>;
foo<int>::bar<zed> x;
// CHECK-LABEL: define internal void @_ZN6test453fooIiE3barINS_12_GLOBAL__N_13zedEEC1Ev
// CHECK-HIDDEN-LABEL: define internal void @_ZN6test453fooIiE3barINS_12_GLOBAL__N_13zedEEC1Ev
}
namespace test46 {
template <typename T>
void foo() {
}
namespace {
struct bar;
}
template DEFAULT void foo<bar>();
void zed() {
foo<bar>();
}
// CHECK-LABEL: define internal void @_ZN6test463fooINS_12_GLOBAL__N_13barEEEvv
// CHECK-HIDDEN-LABEL: define internal void @_ZN6test463fooINS_12_GLOBAL__N_13barEEEvv
}
namespace test47 {
struct foo {
template <typename T>
static void bar() {
}
};
namespace {
struct zed;
}
template DEFAULT void foo::bar<zed>();
void baz() {
foo::bar<zed>();
}
// CHECK-LABEL: define internal void @_ZN6test473foo3barINS_12_GLOBAL__N_13zedEEEvv
// CHECK-HIDDEN-LABEL: define internal void @_ZN6test473foo3barINS_12_GLOBAL__N_13zedEEEvv
}
namespace test49 {
// Test that we use the visibility of struct foo when instantiating the
// template. Note that is a case where we disagree with gcc, it produces
// a default symbol.
struct HIDDEN foo {
};
DEFAULT foo x;
struct bar {
template<foo *z>
void zed() {
}
};
template void bar::zed<&x>();
// CHECK-LABEL: define weak_odr hidden void @_ZN6test493bar3zedIXadL_ZNS_1xEEEEEvv
// CHECK-HIDDEN-LABEL: define weak_odr hidden void @_ZN6test493bar3zedIXadL_ZNS_1xEEEEEvv
}
namespace test50 {
// Test that we use the visibility of struct foo when instantiating the
// template. Note that is a case where we disagree with gcc, it produces
// a default symbol.
struct HIDDEN foo {
};
DEFAULT foo x;
template<foo *z>
struct DEFAULT bar {
void zed() {
}
};
template void bar<&x>::zed();
// CHECK-LABEL: define weak_odr hidden void @_ZN6test503barIXadL_ZNS_1xEEEE3zedEv
// CHECK-HIDDEN-LABEL: define weak_odr hidden void @_ZN6test503barIXadL_ZNS_1xEEEE3zedEv
}
namespace test51 {
// Test that we use the visibility of struct foo when instantiating the
// template. Note that is a case where we disagree with gcc, it produces
// a default symbol.
struct HIDDEN foo {};
DEFAULT foo da, db, dc, dd, de, df;
HIDDEN foo ha, hb, hc, hd, he, hf;
template<foo *z>
void DEFAULT zed() {
}
template void zed<&da>();
// CHECK-LABEL: define weak_odr hidden void @_ZN6test513zedIXadL_ZNS_2daEEEEEvv(
// CHECK-HIDDEN-LABEL: define weak_odr hidden void @_ZN6test513zedIXadL_ZNS_2daEEEEEvv(
template void DEFAULT zed<&db>();
// CHECK-LABEL: define weak_odr void @_ZN6test513zedIXadL_ZNS_2dbEEEEEvv(
// CHECK-HIDDEN-LABEL: define weak_odr void @_ZN6test513zedIXadL_ZNS_2dbEEEEEvv(
template void HIDDEN zed<&dc>();
// CHECK-LABEL: define weak_odr hidden void @_ZN6test513zedIXadL_ZNS_2dcEEEEEvv(
// CHECK-HIDDEN-LABEL: define weak_odr hidden void @_ZN6test513zedIXadL_ZNS_2dcEEEEEvv(
template void zed<&ha>();
// CHECK-LABEL: define weak_odr hidden void @_ZN6test513zedIXadL_ZNS_2haEEEEEvv(
// CHECK-HIDDEN-LABEL: define weak_odr hidden void @_ZN6test513zedIXadL_ZNS_2haEEEEEvv(
template void DEFAULT zed<&hb>();
// CHECK-LABEL: define weak_odr void @_ZN6test513zedIXadL_ZNS_2hbEEEEEvv(
// CHECK-HIDDEN-LABEL: define weak_odr void @_ZN6test513zedIXadL_ZNS_2hbEEEEEvv(
template void HIDDEN zed<&hc>();
// CHECK-LABEL: define weak_odr hidden void @_ZN6test513zedIXadL_ZNS_2hcEEEEEvv(
// CHECK-HIDDEN-LABEL: define weak_odr hidden void @_ZN6test513zedIXadL_ZNS_2hcEEEEEvv(
#pragma GCC visibility push(hidden)
template void zed<&dd>();
template void zed<&hd>();
template void DEFAULT zed<&he>();
#pragma GCC visibility pop
// CHECK-LABEL: define weak_odr hidden void @_ZN6test513zedIXadL_ZNS_2ddEEEEEvv(
// CHECK-LABEL: define weak_odr hidden void @_ZN6test513zedIXadL_ZNS_2hdEEEEEvv(
// CHECK-LABEL: define weak_odr void @_ZN6test513zedIXadL_ZNS_2heEEEEEvv(
// CHECK-HIDDEN-LABEL: define weak_odr hidden void @_ZN6test513zedIXadL_ZNS_2ddEEEEEvv(
// CHECK-HIDDEN-LABEL: define weak_odr hidden void @_ZN6test513zedIXadL_ZNS_2hdEEEEEvv(
// CHECK-HIDDEN-LABEL: define weak_odr void @_ZN6test513zedIXadL_ZNS_2heEEEEEvv(
void use() {
zed<&df>();
zed<&hf>();
}
// CHECK-LABEL: define linkonce_odr hidden void @_ZN6test513zedIXadL_ZNS_2dfEEEEEvv(
// CHECK-LABEL: define linkonce_odr hidden void @_ZN6test513zedIXadL_ZNS_2hfEEEEEvv(
// CHECK-HIDDEN-LABEL: define linkonce_odr hidden void @_ZN6test513zedIXadL_ZNS_2dfEEEEEvv(
// CHECK-HIDDEN-LABEL: define linkonce_odr hidden void @_ZN6test513zedIXadL_ZNS_2hfEEEEEvv(
}
namespace test52 {
// Test that we use the linkage of struct foo when instantiating the
// template. Note that is a case where we disagree with gcc, it produces
// an external symbol.
namespace {
struct foo {
};
}
template<foo *x>
void zed() {
}
void f() {
zed<nullptr>();
}
// CHECK-LABEL: define internal void @_ZN6test523zedILPNS_12_GLOBAL__N_13fooE0EEEvv
// CHECK-HIDDEN-LABEL: define internal void @_ZN6test523zedILPNS_12_GLOBAL__N_13fooE0EEEvv
}
namespace test53 {
template<typename _Tp > struct vector {
static void _M_fill_insert();
};
#pragma GCC visibility push(hidden)
// GCC doesn't seem to use the visibility of enums at all, we do.
enum zed {v1};
// GCC fails to mark this specialization hidden, we mark it.
template<>
struct vector<int> {
static void _M_fill_insert();
};
void foo() {
vector<unsigned>::_M_fill_insert();
vector<int>::_M_fill_insert();
vector<zed>::_M_fill_insert();
}
#pragma GCC visibility pop
// CHECK: declare void @_ZN6test536vectorIjE14_M_fill_insertEv
// CHECK-HIDDEN: declare void @_ZN6test536vectorIjE14_M_fill_insertEv
// CHECK: declare hidden void @_ZN6test536vectorIiE14_M_fill_insertEv
// CHECK-HIDDEN: declare hidden void @_ZN6test536vectorIiE14_M_fill_insertEv
// CHECK: declare hidden void @_ZN6test536vectorINS_3zedEE14_M_fill_insertEv
// CHECK-HIDDEN: declare hidden void @_ZN6test536vectorINS_3zedEE14_M_fill_insertEv
}
namespace test54 {
template <class T>
struct foo {
static void bar();
};
#pragma GCC visibility push(hidden)
class zed {
zed(const zed &);
};
void bah() {
foo<zed>::bar();
}
#pragma GCC visibility pop
// CHECK: declare hidden void @_ZN6test543fooINS_3zedEE3barEv
// CHECK-HIDDEN: declare hidden void @_ZN6test543fooINS_3zedEE3barEv
}
namespace test55 {
template <class T>
struct HIDDEN foo {
static void bar();
};
template <class T> struct foo;
void foobar() {
foo<int>::bar();
}
// CHECK: declare hidden void @_ZN6test553fooIiE3barEv
// CHECK-HIDDEN: declare hidden void @_ZN6test553fooIiE3barEv
}
namespace test56 {
template <class T> struct foo;
template <class T>
struct HIDDEN foo {
static void bar();
};
void foobar() {
foo<int>::bar();
}
// CHECK: declare hidden void @_ZN6test563fooIiE3barEv
// CHECK-HIDDEN: declare hidden void @_ZN6test563fooIiE3barEv
}
namespace test57 {
#pragma GCC visibility push(hidden)
template <class T>
struct foo;
void bar(foo<int>*);
template <class T>
struct foo {
static void zed();
};
void bah() {
foo<int>::zed();
}
#pragma GCC visibility pop
// CHECK: declare hidden void @_ZN6test573fooIiE3zedEv
// CHECK-HIDDEN: declare hidden void @_ZN6test573fooIiE3zedEv
}
namespace test58 {
#pragma GCC visibility push(hidden)
struct foo;
template<typename T>
struct DEFAULT bar {
static void zed() {
}
};
void bah() {
bar<foo>::zed();
}
#pragma GCC visibility pop
// CHECK-LABEL: define linkonce_odr hidden void @_ZN6test583barINS_3fooEE3zedEv
// CHECK-HIDDEN-LABEL: define linkonce_odr hidden void @_ZN6test583barINS_3fooEE3zedEv
}
namespace test59 {
DEFAULT int f();
HIDDEN int g();
typedef int (*foo)();
template<foo x, foo y>
void test() {}
void use() {
test<&g, &f>();
// CHECK-LABEL: define linkonce_odr hidden void @_ZN6test594testIXadL_ZNS_1gEvEEXadL_ZNS_1fEvEEEEvv
// CHECK-HIDDEN-LABEL: define linkonce_odr hidden void @_ZN6test594testIXadL_ZNS_1gEvEEXadL_ZNS_1fEvEEEEvv
test<&f, &g>();
// CHECK-LABEL: define linkonce_odr hidden void @_ZN6test594testIXadL_ZNS_1fEvEEXadL_ZNS_1gEvEEEEvv
// CHECK-HIDDEN-LABEL: define linkonce_odr hidden void @_ZN6test594testIXadL_ZNS_1fEvEEXadL_ZNS_1gEvEEEEvv
}
}
namespace test60 {
template<int i>
class HIDDEN a {};
template<int i>
class DEFAULT b {};
template<template<int> class x, template<int> class y>
void test() {}
void use() {
test<a, b>();
// CHECK-LABEL: define linkonce_odr hidden void @_ZN6test604testINS_1aENS_1bEEEvv
// CHECK-HIDDEN-LABEL: define linkonce_odr hidden void @_ZN6test604testINS_1aENS_1bEEEvv
test<b, a>();
// CHECK-LABEL: define linkonce_odr hidden void @_ZN6test604testINS_1bENS_1aEEEvv
// CHECK-HIDDEN-LABEL: define linkonce_odr hidden void @_ZN6test604testINS_1bENS_1aEEEvv
}
}
namespace test61 {
template <typename T1>
struct Class1
{
void f1() { f2(); }
inline void f2();
};
template<>
inline void Class1<int>::f2()
{
}
void g(Class1<int> *x) {
x->f1();
}
}
namespace test61 {
// Just test that we don't crash. Currently we apply this attribute. Current
// gcc issues a warning about it being unused since "the type is already
// defined". We should probably do the same.
template class HIDDEN Class1<int>;
}
namespace test62 {
template <typename T1>
struct Class1
{
void f1() { f2(); }
inline void f2() {}
};
template<>
inline void Class1<int>::f2()
{
}
void g(Class1<int> *x) {
x->f2();
}
}
namespace test62 {
template class HIDDEN Class1<int>;
// Just test that we don't crash. Currently we apply this attribute. Current
// gcc issues a warning about it being unused since "the type is already
// defined". We should probably do the same.
}
namespace test63 {
enum HIDDEN E { E0 };
struct A {
template <E> static void foo() {}
template <E> struct B {
static void foo() {}
};
};
void test() {
A::foo<E0>();
A::B<E0>::foo();
}
// CHECK-LABEL: define linkonce_odr hidden void @_ZN6test631A3fooILNS_1EE0EEEvv()
// CHECK-LABEL: define linkonce_odr hidden void @_ZN6test631A1BILNS_1EE0EE3fooEv()
}
// Don't ignore the visibility of template arguments just because we
// explicitly instantiated something.
namespace test64 {
struct HIDDEN A {};
template <class P> struct B {
static DEFAULT void foo() {}
};
template class B<A>;
// CHECK-LABEL: define weak_odr hidden void @_ZN6test641BINS_1AEE3fooEv()
}
namespace test65 {
class HIDDEN A {};
template <class T> struct B {
static void func();
template <class U> static void funcT1();
template <class U> static void funcT2();
class Inner {};
template <class U> class InnerT {};
};
template <template <class T> class Temp> struct C {
static void foo() {}
};
// CHECK-LABEL: define void @_ZN6test651BINS_1AEE4funcEv()
template <> DEFAULT void B<A>::func() {}
// CHECK-LABEL: define void @_ZN6test651BINS_1AEE6funcT2IS1_EEvv()
template <> template <> DEFAULT void B<A>::funcT2<A>() {}
// CHECK-LABEL: define linkonce_odr void @_ZN6test651BINS_1AEE6funcT1IiEEvv()
// CHECK-LABEL: define linkonce_odr hidden void @_ZN6test651BINS_1AEE6funcT1IS1_EEvv()
template <> template <class T> DEFAULT void B<A>::funcT1() {}
// CHECK-LABEL: define linkonce_odr void @_ZN6test651BINS_1AEE5Inner3fooEv()
template <> struct DEFAULT B<A>::Inner {
static void foo() {}
};
// CHECK-LABEL: define linkonce_odr void @_ZN6test651BINS_1AEE6InnerTIiE3fooEv()
// CHECK-LABEL: define linkonce_odr hidden void @_ZN6test651BINS_1AEE6InnerTIS1_E3fooEv()
template <> template <class U> struct DEFAULT B<A>::InnerT {
static void foo() {}
};
void test() {
B<A>::funcT1<int>();
B<A>::funcT1<A>();
B<A>::Inner::foo();
B<A>::InnerT<int>::foo();
B<A>::InnerT<A>::foo();
}
template class C<B<A>::InnerT>;
}
namespace test66 {
template <typename T>
struct DEFAULT barT {
static void zed() {}
};
class foo;
class DEFAULT foo;
template struct barT<foo>;
// CHECK-LABEL: define weak_odr void @_ZN6test664barTINS_3fooEE3zedEv
// CHECK-HIDDEN-LABEL: define weak_odr void @_ZN6test664barTINS_3fooEE3zedEv
template <int* I>
struct DEFAULT barI {
static void zed() {}
};
extern int I;
extern int I DEFAULT;
template struct barI<&I>;
// CHECK-LABEL: define weak_odr void @_ZN6test664barIIXadL_ZNS_1IEEEE3zedEv
// CHECK-HIDDEN-LABEL: define weak_odr void @_ZN6test664barIIXadL_ZNS_1IEEEE3zedEv
typedef void (*fType)(void);
template<fType F>
struct DEFAULT barF {
static void zed() {}
};
void F();
void F() DEFAULT;
template struct barF<F>;
// CHECK-LABEL: define weak_odr void @_ZN6test664barFIXadL_ZNS_1FEvEEE3zedEv
// CHECK-HIDDEN-LABEL: define weak_odr void @_ZN6test664barFIXadL_ZNS_1FEvEEE3zedEv
}
namespace test67 {
template <typename T>
struct DEFAULT bar {
static void zed() {}
};
class foo;
class compute {
void f(foo *rootfoo);
};
class DEFAULT foo;
template struct bar<foo>;
// CHECK-LABEL: define weak_odr void @_ZN6test673barINS_3fooEE3zedEv
// CHECK-HIDDEN-LABEL: define weak_odr void @_ZN6test673barINS_3fooEE3zedEv
}
namespace test68 {
class A { public: ~A(); };
class f {
public:
f() {
static A test;
}
};
void g() {
f a;
}
// Check lines at top of file.
}
namespace test69 {
// PR18174
namespace foo {
void f();
}
namespace foo {
void f() {};
}
namespace foo __attribute__((visibility("hidden"))) {
}
// CHECK-LABEL: define void @_ZN6test693foo1fEv
// CHECK-HIDDEN-LABEL: define hidden void @_ZN6test693foo1fEv
}
namespace test70 {
// Make sure both the vtable and VTT declarations are marked "hidden"
class HIDDEN A {
virtual void a();
};
class HIDDEN B : virtual A {
void a() override;
~B();
};
B::~B() {}
// Make sure both the vtable and VTT declarations are marked "hidden"
// when "-fvisibilty=hidden" is in use.
class C {};
class D : virtual C {};
D d;
// Check lines at top of file.
}
// https://github.com/llvm/llvm-project/issues/31462
namespace test71 {
template <class T>
struct foo {
static HIDDEN T zed();
template <class U> HIDDEN U bar();
};
template <class T>
T foo<T>::zed() { return {}; }
template <class T> template <class U>
U foo<T>::bar() { return {}; }
extern template struct DEFAULT foo<int>;
int use() {
foo<int> o;
foo<long> p;
return o.zed() + o.bar<int>() + p.zed() + p.bar<int>();
}
/// FIXME: foo<int>::bar is hidden in GCC w/ or w/o -fvisibility=hidden.
// CHECK-LABEL: declare hidden noundef i32 @_ZN6test713fooIiE3zedEv(
// CHECK-LABEL: define linkonce_odr noundef i32 @_ZN6test713fooIiE3barIiEET_v(
// CHECK-LABEL: define linkonce_odr hidden noundef i64 @_ZN6test713fooIlE3zedEv(
// CHECK-LABEL: define linkonce_odr noundef i32 @_ZN6test713fooIlE3barIiEET_v(
// CHECK-HIDDEN-LABEL: declare hidden noundef i32 @_ZN6test713fooIiE3zedEv(
// CHECK-HIDDEN-LABEL: define linkonce_odr noundef i32 @_ZN6test713fooIiE3barIiEET_v(
// CHECK-HIDDEN-LABEL: define linkonce_odr hidden noundef i64 @_ZN6test713fooIlE3zedEv(
// CHECK-HIDDEN-LABEL: define linkonce_odr hidden noundef i32 @_ZN6test713fooIlE3barIiEET_v(
}
Codebase Browser
llvm