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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [g++.dg/] [opt/] [pr6713.C] - Blame information for rev 841

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Line No. Rev Author Line
1 149 jeremybenn
// PR optimization/6713
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// This testcase segfaulted on x86 because a dangling REG_EQUAL note
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// resulted in incorrect substitutions later.
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// { dg-do run }
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// { dg-options "-O2" }
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template class basic_iterator
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{
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  public:
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    basic_iterator(_CharT* _p) : _M_current(_p) {}
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    basic_iterator& operator++() { ++_M_current; return *this; }
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    _CharT& operator*() const { return *_M_current; }
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    bool operator!=(basic_iterator &_rhs) { return _M_current != _rhs._M_current; }
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  private:
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    _CharT* _M_current;
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};
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template class basic_string
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{
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  public:
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    typedef unsigned int size_type;
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    typedef basic_iterator<_CharT> iterator;
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  private:
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    struct _Rep
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    {
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      size_type _M_length;
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      size_type _M_capacity;
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      int _M_references;
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      bool _M_is_leaked() const { return _M_references < 0; }
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      bool _M_is_shared() const { return _M_references > 0; }
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      void _M_set_leaked() { _M_references = -1; }
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      void _M_set_sharable() { _M_references = 0; }
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    };
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    struct _Rep _M_rep;
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    struct _Alloc_hider
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    {
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      _CharT _raw[16];
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      _CharT* _M_p;
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    };
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    mutable _Alloc_hider _M_dataplus;
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    _CharT* _M_data() const { return _M_dataplus._M_p; }
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    void _M_leak() { if (!_M_rep._M_is_leaked()) _M_leak_hard(); }
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    static int count;
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    static void _M_leak_hard();
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  public:
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    explicit basic_string(const _CharT* __s);
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    iterator begin() { _M_leak(); return iterator(_M_data()); }
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    iterator end() { _M_leak(); return iterator(_M_data() + this->size()); }
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    size_type size() const { return _M_rep._M_length; }
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};
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template basic_string<_CharT>::
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basic_string(const _CharT* __s)
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{
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  int i;
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  for (i=0; i<15; i++) {
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    if (!__s[i])
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      break;
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    _M_dataplus._raw[i] = __s[i];
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  }
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  _M_dataplus._raw[i] = 0;
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  _M_dataplus._M_p = _M_dataplus._raw;
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  _M_rep._M_length = i;
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  _M_rep._M_capacity = i;
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  _M_rep._M_references = 1;
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}
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template int basic_string<_CharT>::count = 0;
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template void basic_string<_CharT>::
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_M_leak_hard()
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{
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  count++;
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}
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typedef basic_string string;
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template int basic_string::count;
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int isspa(int ch)
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{
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  return 0;
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}
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void foo(string& str)
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{
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  string::iterator it = str.begin();
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  string::iterator stop = str.end();
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  for (; it != stop; ++it)
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    if (isspa(*it))
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      break;
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}
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int main()
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{
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  string str("test");
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  foo(str);
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}

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