[Bug tree-optimization/28780] [4.2 regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:108

[pinskia at gcc dot gnu dot org]

------- Comment #8 from pinskia at gcc dot gnu dot org  2006-08-20 01:40 -------
Here is an even shorter testcase for qstring.ii:
struct  QChar
{
    QChar( const QChar& c );
    unsigned short ucs;
};
inline QChar::QChar( const QChar& c ) : ucs( c.ucs ){}
inline bool operator!=( QChar c1, QChar c2 )
{
    return c1.ucs != c2.ucs;
}
struct  QStringData  {  QChar *unicode; };
struct QString
{
    bool isNull() const;
    unsigned length() const;
    const QChar* unicode() const { return d->unicode; }
    bool endsWith( const QString& str, bool cs ) const;
    QStringData *d;
};
inline bool QString::isNull() const{ return unicode() == 0; }
inline unsigned QString::length() const{}
bool QString::endsWith( const QString& s, bool cs ) const
{
  if ( isNull() )
    return s.isNull();
 int pos = length();
 for ( int i = 0; i < (int) s.length(); i++ ) 
  if ( (d->unicode[pos + i]) != (s.d->unicode[i]) )
    return 0;
}


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28780