913f600566
References to different declarations of the same entity aren't different values, so shouldn't have different representations. Recommit ofe6393ee813, most recently reverted in9a33f027acdue to a bug caused by ObjCInterfaceDecls not propagating availability attributes along their redeclaration chains; that bug was fixed ine2d4174e9c.
79 lines
2.4 KiB
C++
79 lines
2.4 KiB
C++
// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -triple %itanium_abi_triple %s -S -emit-llvm -o - | FileCheck %s
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// PR4262
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// CHECK-NOT: _ZNSs12_S_constructIPKcEEPcT_S3_RKSaIcESt20forward_iterator_tag
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// The "basic_string" extern template instantiation declaration is supposed to
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// suppress the implicit instantiation of non-inline member functions. Make sure
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// that we suppress the implicit instantiation of non-inline member functions
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// defined out-of-line. That we aren't instantiating the basic_string
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// constructor when we shouldn't be. Such an instantiation forces the implicit
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// instantiation of _S_construct<const char*>. Since _S_construct is a member
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// template, it's instantiation is *not* suppressed (despite being in
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// basic_string<char>), so we would emit it as a weak definition.
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#define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default")))
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#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__))
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#define _LIBCPP_VISIBLE __attribute__ ((__visibility__("default")))
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#if (__has_feature(cxx_noexcept))
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# define _NOEXCEPT noexcept
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# define _NOEXCEPT_(x) noexcept(x)
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#else
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# define _NOEXCEPT throw()
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# define _NOEXCEPT_(x)
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#endif
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namespace std // purposefully not using versioning namespace
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{
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template<class charT> struct char_traits;
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template<class T> class allocator;
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template <class _CharT,
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class _Traits = char_traits<_CharT>,
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class _Allocator = allocator<_CharT> >
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class _LIBCPP_VISIBLE basic_string;
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typedef basic_string<char, char_traits<char>, allocator<char> > string;
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class _LIBCPP_EXCEPTION_ABI exception
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{
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public:
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_LIBCPP_INLINE_VISIBILITY exception() _NOEXCEPT {}
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virtual ~exception() _NOEXCEPT;
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virtual const char* what() const _NOEXCEPT;
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};
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class _LIBCPP_EXCEPTION_ABI runtime_error
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: public exception
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{
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private:
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void* __imp_;
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public:
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explicit runtime_error(const string&);
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explicit runtime_error(const char*);
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runtime_error(const runtime_error&) _NOEXCEPT;
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runtime_error& operator=(const runtime_error&) _NOEXCEPT;
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virtual ~runtime_error() _NOEXCEPT;
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virtual const char* what() const _NOEXCEPT;
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};
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}
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void dummysymbol() {
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throw(std::runtime_error("string"));
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}
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namespace not_weak_on_first {
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int func();
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// CHECK: {{.*}} extern_weak {{.*}} @_ZN17not_weak_on_first4funcEv(
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int func() __attribute__ ((weak));
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typedef int (*FuncT)();
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extern const FuncT table[] = {
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func,
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};
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}
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