https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70182
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
CC| |iant at google dot com
--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
trippels@gcc2-power8 ~ % cat down.ii
namespace std {
template <typename _Tp> struct integral_constant {
static constexpr _Tp value = 0;
};
template <typename> struct conditional;
template <typename...> struct A;
template <typename _B1, typename _B2>
struct A<_B1, _B2> : conditional<_B1>::type {};
struct B : integral_constant<bool> {};
template <int, typename = void> struct enable_if { typedef int type; };
template <typename> struct conditional { typedef B type; };
struct type_info;
template <typename> struct function;
template <typename _Functor> struct _Base_manager {
static int _M_manager() { ; }
};
template <typename, typename> struct C;
template <typename _Res, typename _Functor, typename... _ArgTypes>
struct C<_Res(_ArgTypes...), _Functor> : _Base_manager<_Functor> {};
template <typename, typename> using __check_func_return_type = int;
template <typename _Res, typename... _ArgTypes>
struct function<_Res(_ArgTypes...)> {
template <typename _Functor>
using _Callable = A<_Functor, __check_func_return_type<_Functor, _Res>>;
template <typename _Cond, typename>
using _Requires = typename enable_if<_Cond::value>::type;
template <typename _Functor, typename = _Requires<_Callable<_Functor>, void>>
function(_Functor);
};
template <typename _Res, typename... _ArgTypes>
template <typename _Functor, typename>
function<_Res(_ArgTypes...)>::function(_Functor) {
C<_Res(), _Functor>::_M_manager;
}
}
struct D {
static const int value = 0;
};
namespace boost {
template <typename T2> struct F { typedef T2 type; };
namespace function_types {
template <typename, typename> struct G;
template <typename T> struct H : G<T, int> {};
template <typename R, typename T0, typename T1, typename L>
struct G<R (T0::*)(T1) const, L> {
typedef D function_arity;
};
template <typename T>
struct function_arity : F<typename H<T>::function_arity>::type {};
}
}
namespace folly {
namespace detail {
void addBenchmarkImpl(int, int, std::function<int()>);
}
template <typename Lambda>
typename std::enable_if<boost::function_types::function_arity<
decltype(&Lambda::operator())>::value == 2>::type
addBenchmark(const char *, const char *, Lambda &&) {
auto execute = [](unsigned) {};
detail::addBenchmarkImpl(0, 0, execute);
}
}
int follyBenchmarkUnused2(folly::addBenchmark("", "", [](int) {}));
trippels@gcc2-power8 ~ % clang++ -w -std=c++14 down.ii -c
trippels@gcc2-power8 ~ % nm -C down.o
0000000000000000 t __cxx_global_var_init
0000000000000000 B follyBenchmarkUnused2
0000000000000070 t _GLOBAL__sub_I_down.ii
U .TOC.
0000000000000000 t
_ZN5folly12addBenchmarkI3$_0EENSt9enable_ifIXeqsr5boost14function_types14function_arityIDTadsrT_onclEEE5valueLi2EEvE4typeEPKcS8_OS3_
U folly::detail::addBenchmarkImpl(int, int, std::function<int
()>)
0000000000000090 t
_ZNSt13_Base_managerIZN5folly12addBenchmarkI3$_0EENSt9enable_ifIXeqsr5boost14function_types14function_arityIDTadsrT_onclEEE5valueLi2EEvE4typeEPKcS9_OS4_EUljE_E10_M_managerEv
0000000000000070 t
_ZNSt8functionIFivEEC2IZN5folly12addBenchmarkI3$_0EENSt9enable_ifIXeqsr5boost14function_types14function_arityIDTadsrT_onclEEE5valueLi2EEvE4typeEPKcSC_OS7_EUljE_iEES7_
trippels@gcc2-power8 ~ % g++ -w -std=c++14 down.ii -c
trippels@gcc2-power8 ~ % nm -C down.o
0000000000000000 B follyBenchmarkUnused2
000000000000014c t _GLOBAL__sub_I_follyBenchmarkUnused2
U .TOC.
00000000000000ac t __static_initialization_and_destruction_0(int, int)
0000000000000000 t
_ZN5folly12addBenchmarkIUliE_EENSt9enable_ifIXeqsrN5boost14function_types14function_arityIDTadsrT_clEEE5valueLi2EEvE4typeEPKcSC_OS6_
U folly::detail::addBenchmarkImpl(int, int, std::function<int
()>)
000000000000007c t
_ZNSt8functionIFivEEC1IZN5folly12addBenchmarkIUliE_EENSt9enable_ifIXeqsrN5boost14function_types14function_arityIDTadsrT_clEEE5valueLi2EEvE4typeEPKcSG_OSA_EUljE_iEESA_
000000000000007c t
_ZNSt8functionIFivEEC2IZN5folly12addBenchmarkIUliE_EENSt9enable_ifIXeqsrN5boost14function_types14function_arityIDTadsrT_clEEE5valueLi2EEvE4typeEPKcSG_OSA_EUljE_iEESA_
Ian's go demangler and the libcxxabi demangler also are unable to demangle
these symbols.
