[Bug c++/42446] New: gcc crash (internal compiler error) during the build of C++ code

[leonleon77 at gmail dot com]

Whatever the gcc should do, I don't think it should crash in the following case
(I shall try to re-build the latest 4.4.2 series to reproduce it there as well,
if I'll find the time):

Start of code:

template <typename N, N M>
struct boo {
};

template <typename N, N P, template <typename X, X M> class Base>

struct goo : Base<N, P> {
};

int
main()
{
  goo<int, 1, boo> goo1;
  return 0;
}

Start of command-line which causes the crash:
gcc main.cc

Start of gcc-output as it crashes:
main.cc: In function 'int main()':
main.cc:13: internal compiler error: in dependent_type_p, at
cc1plus/../../../../contrib/gcc/cp/pt.c:12777
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

Start of gcc --version output:
%gcc --version
gcc (GCC) 4.2.1 20070719  [FreeBSD]
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Start of uname -a output:
%uname -a
FreeBSD localhost 7.2-RELEASE FreeBSD 7.2-RELEASE #0: Fri May  1 07:18:07 UTC
2009     root@driscoll.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  amd64


-- 
           Summary: gcc crash (internal compiler error) during the build of
                    C++ code
           Product: gcc
           Version: 4.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: leonleon77 at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42446