Bug#105384: Segfault involving templates, std::string, and exceptions

[Sebastian Rittau <srittau@debian.org>]

Package: g++-3.0
Version: 1:3.0-4
Severity: normal

Consider the attached source file. When trying to compile this, I get:

| srittau@jroger:~$ g++-3.0 -O -c segfault.cc
| g++-3.0: Internal error: Segmentation fault (program as)
| Please submit a full bug report.
| See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
| For Debian GNU/Linux specific bugs,
| please see /usr/share/doc/debian/bug-reporting.txt.
| 
| srittau@jroger:~$ 

Removing the -O switch fixes this as well as tweaking the source file
a little here or there. When I try to compile this on a SuSE 7.1 box
(i386 as well) with a hand-installed g++ 3.0, everything works fine.
I also doubt that this is a hardware problem, since I have no problems
compiling anything else and the problem is quite reproducible.

-- System Information
Debian Release: testing/unstable
Architecture: i386
Kernel: Linux jroger 2.4.5 #1 Sam Mai 26 15:18:03 CEST 2001 i686
Locale: LANG=de_DE.ISO8859-1, LC_CTYPE=de_DE.ISO8859-1

Versions of packages g++-3.0 depends on:
ii  gcc-3.0                       1:3.0-4    The GNU C compiler.               
ii  gcc-3.0-base                  1:3.0-4    The GNU compiler collection (base 
ii  libc6                         2.2.3-6    GNU C Library: Shared libraries an
ii  libstdc++3-dev                1:3.0-4    The GNU stdc++ library version 3 (

#include <string>

class _Exception
{
public:
    ~_Exception();
};

class C {
public:
    void Method();
};

C *Func(const std::string &);

template<class T, class L>
class Template {
public:
    void a() {
	Func("");
    }
    void b() throw(_Exception) {
	C *c = Func("");
	c->Method();
	throw _Exception();
    }
};

template class Template<int, int>;