[Bug c++/50618] New: Virtual inheritance segfault

[tomboshoven at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50618

             Bug #: 50618
           Summary: Virtual inheritance segfault
    Classification: Unclassified
           Product: gcc
           Version: 4.6.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: tomboshoven@gmail.com


Created attachment 25417
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25417
A small program using multiple inheritance, segfaults when run.

Affected GCC Versions:
4.6.1 20110819 (prerelease)   (Arch Linux package)
4.5.3    (Compiled using Arch defaults, --march=core2)
Both x64.

GCC 4.2 does not seem to be affected.


The attached source code, when compiled without any additional flags, segfaults
when executed.
The segfault occurs within the ostream.

I tried to further minimize the code, but all components of this code seem to
be required.