[PATCH, testsuite] Add testcase from PR 58371

[Martin Jambor <mjambor at suse dot cz>]

Hi,

the bug I have fixed yesterday got reported a day earlier as PR 58371.
This patch adds the testcase from that PR to the testsuite.  Honza
asked for it so I assume it has been pre-approved and so I will commit
it later today or early tomorrow if there are no objections.

Thanks,

Martin


2013-09-11  Martin Jambor  <mjambor@suse.cz>

	PR ipa/58371
	* g++.dg/ipa/pr58371.C: New test.

Index: src/gcc/testsuite/g++.dg/ipa/pr58371.C
===================================================================
--- /dev/null
+++ src/gcc/testsuite/g++.dg/ipa/pr58371.C
@@ -0,0 +1,204 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+
+typedef int size_t;
+namespace {
+template < typename > struct char_traits;
+}
+namespace __gnu_cxx {
+template < typename > class new_allocator {
+};
+}
+namespace std {
+template < typename _Tp > class allocator:__gnu_cxx::new_allocator < _Tp > {
+public:
+  size_t size_type;
+  typedef _Tp & const_reference;
+  template < typename > struct rebind {
+    typedef allocator other;
+  };
+};
+}
+namespace __gnu_cxx {
+template < typename _Alloc > struct __alloc_traits {
+  typedef typename _Alloc::const_reference const_reference;
+  template < typename _Tp > struct rebind {
+    typedef typename _Alloc::template rebind < _Tp >::other other;
+  };
+};
+}
+namespace std {
+struct __numeric_limits_base {
+};
+template < typename _Tp > struct numeric_limits:__numeric_limits_base {
+  static _Tp max () {
+  }
+};
+template < typename _Tp, typename _Alloc > struct _Vector_base {
+  typedef typename __gnu_cxx::__alloc_traits < _Alloc >::template rebind <
+  _Tp >::other _Tp_alloc_type;
+};
+template < typename _Tp, typename _Alloc = std::allocator < _Tp > >class vector:_Vector_base < _Tp,
+  _Alloc
+    > {
+  typedef _Vector_base < _Tp, _Alloc > _Base;
+  typedef typename _Base::_Tp_alloc_type _Tp_alloc_type;
+  typedef __gnu_cxx::__alloc_traits < _Tp_alloc_type > _Alloc_traits;
+public:
+  _Tp value_type;
+  typedef typename _Alloc_traits::const_reference const_reference;
+  typedef size_t size_type;
+  size_type size () {
+  } const_reference operator[] (size_type) {
+  }
+};
+template < typename _CharT, typename =
+char_traits < _CharT > >class basic_ostream;
+typedef basic_ostream < int >ostream;
+class ios_base {
+};
+template < typename, typename > class basic_ios:ios_base {
+};
+template < typename _CharT, typename _Traits > class basic_ostream:basic_ios < _CharT,
+  _Traits
+    > {
+public:
+  _CharT char_type;
+  typedef basic_ostream __ostream_type;
+  __ostream_type & operator<< (const void *) {
+  }
+};
+}
+namespace logging {
+int GetMinLogLevel ();
+typedef int LogSeverity;
+LogSeverity LOG_ERROR_REPORT;
+LogSeverity LOG_DCHECK;
+class LogMessage {
+public:
+  LogMessage (const char *, int, LogSeverity);
+  std::ostream & stream () {
+  }
+};
+class LogMessageVoidify {
+public:
+  LogMessageVoidify () {
+  } void operator& (std::ostream &) {
+  }
+};
+}
+namespace base {
+namespace internal {
+class WeakPtrBase {
+};
+class SupportsWeakPtrBase {
+};
+} template < typename T > class WeakPtr:internal::WeakPtrBase {
+public:
+  WeakPtr () :ptr_ () {
+  } T *operator-> () {
+    logging:0 &&
+    logging::LOG_DCHECK >=
+    logging::GetMinLogLevel () ? (void) 0 : logging::
+    LogMessageVoidify () & logging::
+    LogMessage ("../../base/memory/weak_ptr.h", 0,
+                logging::LOG_ERROR_REPORT).stream () << ". ";
+  } T *ptr_;
+};
+template < class > class SupportsWeakPtr:internal::SupportsWeakPtrBase {
+};
+}
+template < class ObserverType > class ObserverListBase:base::SupportsWeakPtr < ObserverListBase < ObserverType >
+    > {
+public:
+  class Iterator {
+  public:
+    Iterator (ObserverListBase & list) :max_index_ (0 ? std::numeric_limits <
+          size_t >::max () : list.observers_.
+          size () ) {
+    } ObserverType *
+    GetNext () {
+      ListType & observers = list_->observers_;
+      if (observers[0])
+        ++index_;
+    }
+    base::WeakPtr < ObserverListBase > list_;
+    size_t
+    index_;
+    size_t
+    max_index_;
+  };
+  typedef
+  std::vector <
+  ObserverType * >
+  ListType;
+  ListType
+  observers_;
+};
+template < class ObserverType, bool > class ObserverList:public ObserverListBase <
+    ObserverType > {
+};
+namespace
+    ProxyPrefs {
+enum ConfigState
+{ };
+}
+namespace
+    net {
+class
+    ProxyConfig {
+};
+class
+    ProxyConfigService {
+public:
+  enum ConfigAvailability
+  { };
+  class
+      Observer {
+  public:
+    Observer () {
+    } virtual void
+    OnProxyConfigChanged (const ProxyConfig &, ConfigAvailability) = 0;
+  };
+  virtual void
+  OnLazyPoll () {
+  }
+};
+}
+class
+  ChromeProxyConfigService:
+  net::ProxyConfigService,
+    net::ProxyConfigService::Observer {
+  ConfigAvailability
+  GetLatestProxyConfig (net::ProxyConfig *);
+  void
+  UpdateProxyConfig (ProxyPrefs::ConfigState, const net::ProxyConfig &);
+  void
+  OnProxyConfigChanged (const net::ProxyConfig &, ConfigAvailability);
+  ObserverList <
+  net::ProxyConfigService::Observer,
+      0 >
+      observers_;
+};
+void
+ChromeProxyConfigService::UpdateProxyConfig (ProxyPrefs::ConfigState,
+    const net::ProxyConfig &) {
+  net::ProxyConfig new_config;
+  ConfigAvailability availability = GetLatestProxyConfig (0);
+net:
+  ProxyConfigService::Observer * obs;
+  obs->OnProxyConfigChanged (new_config, availability);
+}
+void
+ChromeProxyConfigService::OnProxyConfigChanged (const net::ProxyConfig &,
+    ConfigAvailability
+    availability) {
+  net::ProxyConfig actual_config;
+  ObserverListBase <
+  net::ProxyConfigService::Observer >::Iterator it (observers_);
+net:
+  ProxyConfigService::Observer * obs;
+  if (it.GetNext () )
+    obs->OnProxyConfigChanged (actual_config, availability);
+}