1 // RUN: %clang -fexceptions %s -S -emit-llvm -o - | FileCheck %s 2 // PR4262 3 4 // CHECK-NOT: _ZNSs12_S_constructIPKcEEPcT_S3_RKSaIcESt20forward_iterator_tag 5 6 // The "basic_string" extern template instantiation declaration is supposed to 7 // suppress the implicit instantiation of non-inline member functions. Make sure 8 // that we suppress the implicit instantiation of non-inline member functions 9 // defined out-of-line. That we aren't instantiating the basic_string 10 // constructor when we shouldn't be. Such an instantiation forces the implicit 11 // instantiation of _S_construct<const char*>. Since _S_construct is a member 12 // template, it's instantiation is *not* suppressed (despite being in 13 // basic_string<char>), so we would emit it as a weak definition. 14 15 #define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default"))) 16 #define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__)) 17 #define _LIBCPP_VISIBLE __attribute__ ((__visibility__("default"))) 18 #if (__has_feature(cxx_noexcept)) 19 # define _NOEXCEPT noexcept 20 # define _NOEXCEPT_(x) noexcept(x) 21 #else 22 # define _NOEXCEPT throw() 23 # define _NOEXCEPT_(x) 24 #endif 25 26 namespace std // purposefully not using versioning namespace 27 { 28 29 template<class charT> struct char_traits; 30 template<class T> class allocator; 31 template <class _CharT, 32 class _Traits = char_traits<_CharT>, 33 class _Allocator = allocator<_CharT> > 34 class _LIBCPP_VISIBLE basic_string; 35 typedef basic_string<char, char_traits<char>, allocator<char> > string; 36 37 class _LIBCPP_EXCEPTION_ABI exception 38 { 39 public: 40 _LIBCPP_INLINE_VISIBILITY exception() _NOEXCEPT {} 41 virtual ~exception() _NOEXCEPT; 42 virtual const char* what() const _NOEXCEPT; 43 }; 44 45 class _LIBCPP_EXCEPTION_ABI runtime_error 46 : public exception 47 { 48 private: 49 void* __imp_; 50 public: 51 explicit runtime_error(const string&); 52 explicit runtime_error(const char*); 53 54 runtime_error(const runtime_error&) _NOEXCEPT; 55 runtime_error& operator=(const runtime_error&) _NOEXCEPT; 56 57 virtual ~runtime_error() _NOEXCEPT; 58 59 virtual const char* what() const _NOEXCEPT; 60 }; 61 62 } 63 64 void dummysymbol() { 65 throw(std::runtime_error("string")); 66 } 67
