llvm-project/clang/test/CodeGenCXX/rtti-visibility.cpp
John McCall 57420b320c type_info objects are not unnamed_addr: the ABI requires us to
unique them and permits the implementation of dynamic_cast (and
anything else which knows it's working with a complete class
type) to compare their addresses directly.

rdar://16005328

llvm-svn: 201020
2014-02-08 03:26:05 +00:00

30 lines
951 B
C++

// RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -emit-llvm -o %t
// RUN: FileCheck --check-prefix=CHECK-TEST1 %s < %t
// RUN: FileCheck --check-prefix=CHECK-TEST2 %s < %t
#include <typeinfo>
namespace Test1 {
// A is explicitly marked hidden, so all RTTI data should also be marked hidden.
// CHECK-TEST1: @_ZTSN5Test11AE = linkonce_odr hidden constant
// CHECK-TEST1: @_ZTIN5Test11AE = linkonce_odr hidden constant
// CHECK-TEST1: @_ZTSPN5Test11AE = linkonce_odr hidden constant
// CHECK-TEST1: @_ZTIPN5Test11AE = linkonce_odr hidden constant
struct __attribute__((visibility("hidden"))) A { };
void f() {
(void)typeid(A);
(void)typeid(A *);
}
}
namespace Test2 {
// A is weak, so its linkage should be linkoce_odr, but not marked hidden.
// CHECK-TEST2: @_ZTSN5Test21AE = linkonce_odr constant
// CHECK-TEST2: @_ZTIN5Test21AE = linkonce_odr constant
struct A { };
void f() {
(void)typeid(A);
}
}