I tested two example designs in SystemC version 2.0.1, and the same failure 
occurs. I think it occurs during the headfile preprocessing. The message is as 
following:

....
/v/userc/fanyp/projects/SystemC/systemc-
2.0.1/include/systemc/datatypes/int/sc_unsigned.h:1939: internal compiler 
error: Segmentation fault
....


You can download the SystemC library (intrinsic C++) from: 
http://www.systemc.org/projects/systemc

Can you please include a small preprocessed testcase that illustrates this bug? 

Thanks,

-Chris

Created an attachment (id=176) [details]
The preproccessed cpp file (gzipped)

Thanks for the testcase.  I'm looking into it, but note that it breaks after
emitting an error message.  Try fixing the error, and the segfault might go away.  

I'll try to get a more satisfactory answer for you though :)

-Chris

Here is a reduced testcase:

namespace nm {
  struct str {
    friend int foo(int arg = 0);
  };
}

Okay, this is sick.  After tracking down the bug, it turns out the GCC people
found the exact same problem, and reduced it down to exactly the same testcase:

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13166

I will merge their patches into our C++ parser to fix the problem.

-Chris

Fixed.

Testcase here:
http://mail.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20041122/021389.html

Patch here:
http://mail.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20041122/021390.html

-Chris