1 files changed, 140 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/rtti-linkage.cpp b/clang/test/CodeGenCXX/rtti-linkage.cpp
new file mode 100644
index 0000000..42fe435
--- /dev/null
+++ b/clang/test/CodeGenCXX/rtti-linkage.cpp
@@ -0,0 +1,140 @@
+// RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -fhidden-weak-vtables -emit-llvm -o - | FileCheck %s
+// RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -fvisibility hidden -fhidden-weak-vtables -emit-llvm -o - | FileCheck -check-prefix=CHECK-WITH-HIDDEN %s
+
+#include <typeinfo>
+
+// CHECK-WITH-HIDDEN: _ZTSFN12_GLOBAL__N_11DEvE = internal constant
+// CHECK-WITH-HIDDEN: @_ZTSPK2T4 = linkonce_odr hidden constant 
+// CHECK-WITH-HIDDEN: @_ZTS2T4 = linkonce_odr hidden constant 
+// CHECK-WITH-HIDDEN: @_ZTI2T4 = linkonce_odr hidden unnamed_addr constant 
+// CHECK-WITH-HIDDEN: @_ZTIPK2T4 = linkonce_odr hidden unnamed_addr constant 
+
+// CHECK: _ZTSP1C = internal constant
+// CHECK: _ZTS1C = internal constant
+// CHECK: _ZTI1C = internal unnamed_addr constant
+// CHECK: _ZTIP1C = internal unnamed_addr constant
+// CHECK: _ZTSPP1C = internal constant
+// CHECK: _ZTIPP1C = internal unnamed_addr constant
+// CHECK: _ZTSM1Ci = internal constant
+// CHECK: _ZTIM1Ci = internal unnamed_addr constant
+// CHECK: _ZTSPM1Ci = internal constant
+// CHECK: _ZTIPM1Ci = internal unnamed_addr constant
+// CHECK: _ZTSM1CS_ = internal constant
+// CHECK: _ZTIM1CS_ = internal unnamed_addr constant
+// CHECK: _ZTSM1CPS_ = internal constant
+// CHECK: _ZTIM1CPS_ = internal unnamed_addr constant
+// CHECK: _ZTSM1A1C = internal constant
+// CHECK: _ZTS1A = linkonce_odr constant
+// CHECK: _ZTI1A = linkonce_odr hidden unnamed_addr constant
+// CHECK: _ZTIM1A1C = internal unnamed_addr constant
+// CHECK: _ZTSM1AP1C = internal constant
+// CHECK: _ZTIM1AP1C = internal unnamed_addr constant
+// CHECK: _ZTSN12_GLOBAL__N_11DE = internal constant
+// CHECK: _ZTIN12_GLOBAL__N_11DE = internal unnamed_addr constant
+// CHECK: _ZTSPN12_GLOBAL__N_11DE = internal constant
+// CHECK: _ZTIPN12_GLOBAL__N_11DE = internal unnamed_addr constant
+// CHECK: _ZTSFN12_GLOBAL__N_11DEvE = internal constant
+// CHECK: _ZTIFN12_GLOBAL__N_11DEvE = internal unnamed_addr constant
+// CHECK: _ZTSFvN12_GLOBAL__N_11DEE = internal constant
+// CHECK: _ZTIFvN12_GLOBAL__N_11DEE = internal unnamed_addr constant
+// CHECK: _ZTSPFvvE = linkonce_odr constant
+// CHECK: _ZTSFvvE = linkonce_odr constant
+// CHECK: _ZTIFvvE = linkonce_odr hidden unnamed_addr constant
+// CHECK: _ZTIPFvvE = linkonce_odr hidden unnamed_addr constant
+// CHECK: _ZTSN12_GLOBAL__N_11EE = internal constant
+// CHECK: _ZTIN12_GLOBAL__N_11EE = internal unnamed_addr constant
+// CHECK: _ZTSA10_i = linkonce_odr constant
+// CHECK: _ZTIA10_i = linkonce_odr hidden unnamed_addr constant
+// CHECK: _ZTI1TILj0EE = linkonce_odr unnamed_addr constant
+// CHECK: _ZTI1TILj1EE = weak_odr unnamed_addr constant
+// CHECK: _ZTI1TILj2EE = external constant
+// CHECK: _ZTS1B = constant
+// CHECK: _ZTI1B = unnamed_addr constant
+// CHECK: _ZTS1F = linkonce_odr constant
+
+// CHECK: _ZTIN12_GLOBAL__N_11DE to
+
+// A has no key function, so its RTTI data should be linkonce_odr.
+struct A { };
+
+// B has a key function defined in the translation unit, so the RTTI data should
+// be emitted in this translation unit and have external linkage.
+struct B : A {
+  virtual void f();
+};
+void B::f() { }
+
+// C is an incomplete class type, so any direct or indirect pointer types should have 
+// internal linkage, as should the type info for C itself.
+struct C;
+
+void t1() {
+  (void)typeid(C*);
+  (void)typeid(C**);
+  (void)typeid(int C::*);
+  (void)typeid(int C::**);
+  (void)typeid(C C::*);
+  (void)typeid(C *C::*);
+  (void)typeid(C A::*);
+  (void)typeid(C* A::*);
+}
+
+namespace {
+  // D is inside an anonymous namespace, so all type information related to D should have
+  // internal linkage.
+  struct D { };
+  
+  // E is also inside an anonymous namespace.
+  enum E { };
+  
+};
+
+// F has a key function defined in the translation unit, but it is inline so the RTTI
+// data should be emitted with linkonce_odr linkage.
+struct F {
+  virtual void f();
+};
+
+inline void F::f() { }
+const D getD();
+
+const std::type_info &t2() {
+  (void)typeid(const D);
+  (void)typeid(D *);
+  (void)typeid(D (*)());
+  (void)typeid(void (*)(D));
+  (void)typeid(void (*)(D&));
+  // The exception specification is not part of the RTTI descriptor, so it should not have
+  // internal linkage.
+  (void)typeid(void (*)() throw (D));
+  
+  (void)typeid(E);
+  
+  return typeid(getD());  
+}
+
+namespace Arrays {
+  struct A {
+    static const int a[10];
+  };
+  const std::type_info &f() {
+    return typeid(A::a);
+  }
+}
+
+template <unsigned N> class T {
+  virtual void anchor() {}
+};
+template class T<1>;
+template <> class T<2> { virtual void anchor(); };
+void t3() {
+  (void) typeid(T<0>);
+  (void) typeid(T<1>);
+  (void) typeid(T<2>);
+}
+
+// rdar://problem/8778973
+struct T4 {};
+void t4(const T4 *ptr) {
+  const void *value = &typeid(ptr);
+}