1// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -triple %itanium_abi_triple %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
26namespace std  // purposefully not using versioning namespace
27{
28
29template<class charT> struct char_traits;
30template<class T>     class allocator;
31template <class _CharT,
32          class _Traits = char_traits<_CharT>,
33          class _Allocator = allocator<_CharT> >
34    class _LIBCPP_VISIBLE basic_string;
35typedef basic_string<char, char_traits<char>, allocator<char> > string;
36
37class _LIBCPP_EXCEPTION_ABI exception
38{
39public:
40    _LIBCPP_INLINE_VISIBILITY exception() _NOEXCEPT {}
41    virtual ~exception() _NOEXCEPT;
42    virtual const char* what() const _NOEXCEPT;
43};
44
45class _LIBCPP_EXCEPTION_ABI runtime_error
46    : public exception
47{
48private:
49    void* __imp_;
50public:
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
64void dummysymbol() {
65  throw(std::runtime_error("string"));
66}
67