[Bug c++/12168] New: [3.4 regression] ICE (bus error) in set_mem_attributes_minus_bitpos

["ehrhardt at mathematik dot uni-ulm dot de" <gcc-bugzilla at gcc dot gnu dot org>]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12168

           Summary: [3.4 regression] ICE (bus error) in
                    set_mem_attributes_minus_bitpos
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: critical
          Priority: P1
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ehrhardt at mathematik dot uni-ulm dot de
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: sparc-sun-solaris2.9
  GCC host triplet: sparc-sun-solaris2.9
GCC target triplet: sparc-sun-solaris2.9

The following code ICEs 3.4 as of 20030903 preventing compilation of
libstdc++. Compile with -O1
======================== cut ===========================================
template<typename _CharT, typename _Traits = char > struct basic_istream;
struct ios_base {
        virtual ~ios_base() {}
};
template<typename _CharT, typename _Traits>
struct basic_istream : virtual public ios_base { };
struct istrstream : public basic_istream<char> {
            virtual ~istrstream();
};
istrstream::~istrstream() { }
======================== cut ===========================================

This is a regression on the 3.4 branch. Testresults submitted to
gcc-testresults do not show successful g++ testsuite runs since
about Aug 29th.

    regards   Christian