llvm-project/clang/test/CodeGenCXX/rtti-visibility.cpp

36 lines
1.4 KiB
C++

// RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -emit-llvm -o %t
// RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -fhidden-weak-vtables -emit-llvm -o %t.hidden
// RUN: FileCheck --check-prefix=CHECK-TEST1 %s < %t
// RUN: FileCheck --check-prefix=CHECK-TEST2 %s < %t
// RUN: FileCheck --check-prefix=CHECK-TEST2-HIDDEN %s < %t.hidden
#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 unnamed_addr constant
// CHECK-TEST1: @_ZTSPN5Test11AE = linkonce_odr hidden constant
// CHECK-TEST1: @_ZTIPN5Test11AE = linkonce_odr hidden unnamed_addr 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 unnamed_addr constant
struct A { };
// With -fhidden-weak-vtables, the typeinfo for A is marked hidden, but not its name.
// CHECK-TEST2-HIDDEN: _ZTSN5Test21AE = linkonce_odr constant
// CHECK-TEST2-HIDDEN: @_ZTIN5Test21AE = linkonce_odr hidden unnamed_addr constant
void f() {
(void)typeid(A);
}
}