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author | Zancanaro; Carlo <czan8762@plang3.cs.usyd.edu.au> | 2012-09-24 09:58:17 +1000 |
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committer | Zancanaro; Carlo <czan8762@plang3.cs.usyd.edu.au> | 2012-09-24 09:58:17 +1000 |
commit | 222e2a7620e6520ffaf4fc4e69d79c18da31542e (patch) | |
tree | 7bfbc05bfa3b41c8f9d2e56d53a0bc3e310df239 /clang/test/CodeGenCXX/weak-external.cpp | |
parent | 3d206f03985b50beacae843d880bccdc91a9f424 (diff) |
Add the clang library to the repo (with some of my changes, too).
Diffstat (limited to 'clang/test/CodeGenCXX/weak-external.cpp')
-rw-r--r-- | clang/test/CodeGenCXX/weak-external.cpp | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/weak-external.cpp b/clang/test/CodeGenCXX/weak-external.cpp new file mode 100644 index 0000000..dad54f6 --- /dev/null +++ b/clang/test/CodeGenCXX/weak-external.cpp @@ -0,0 +1,66 @@ +// RUN: %clang -fexceptions %s -S -emit-llvm -o - | FileCheck %s +// PR4262 + +// CHECK-NOT: _ZNSs12_S_constructIPKcEEPcT_S3_RKSaIcESt20forward_iterator_tag + +// The "basic_string" extern template instantiation declaration is supposed to +// suppress the implicit instantiation of non-inline member functions. Make sure +// that we suppress the implicit instantiation of non-inline member functions +// defined out-of-line. That we aren't instantiating the basic_string +// constructor when we shouldn't be. Such an instantiation forces the implicit +// instantiation of _S_construct<const char*>. Since _S_construct is a member +// template, it's instantiation is *not* suppressed (despite being in +// basic_string<char>), so we would emit it as a weak definition. + +#define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default"))) +#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__)) +#define _LIBCPP_VISIBLE __attribute__ ((__visibility__("default"))) +#if (__has_feature(cxx_noexcept)) +# define _NOEXCEPT noexcept +# define _NOEXCEPT_(x) noexcept(x) +#else +# define _NOEXCEPT throw() +# define _NOEXCEPT_(x) +#endif + +namespace std // purposefully not using versioning namespace +{ + +template<class charT> struct char_traits; +template<class T> class allocator; +template <class _CharT, + class _Traits = char_traits<_CharT>, + class _Allocator = allocator<_CharT> > + class _LIBCPP_VISIBLE basic_string; +typedef basic_string<char, char_traits<char>, allocator<char> > string; + +class _LIBCPP_EXCEPTION_ABI exception +{ +public: + _LIBCPP_INLINE_VISIBILITY exception() _NOEXCEPT {} + virtual ~exception() _NOEXCEPT; + virtual const char* what() const _NOEXCEPT; +}; + +class _LIBCPP_EXCEPTION_ABI runtime_error + : public exception +{ +private: + void* __imp_; +public: + explicit runtime_error(const string&); + explicit runtime_error(const char*); + + runtime_error(const runtime_error&) _NOEXCEPT; + runtime_error& operator=(const runtime_error&) _NOEXCEPT; + + virtual ~runtime_error() _NOEXCEPT; + + virtual const char* what() const _NOEXCEPT; +}; + +} + +void dummysymbol() { + throw(std::runtime_error("string")); +} |