[Bug c++/13744] New: ICE when using implicit copy constructor for struct defined in template function

["thomharp at charter dot net" <gcc-bugzilla at gcc dot gnu dot org>]

The following code fails with an ICE (errors are transcribed below).  I haven't
found any structural changes I can make to this code without making the problem
go away, so I can't be sure what combination of constructs causes the problem,
but it's clear that this only happens when using the implicit copy constructor
for a type defined within a template function (or member function of a template
class) which derives from a base type with virtual functions supplied in the
newly defined type:

struct Base {                                                                       
        virtual Base *copy(void) = 0;                                               
        virtual ~Base() { }                                                         
};  
                                                                                
                                                                               
    template <typename T>
void make(void) {                                                                   
        struct Test : public Base {                                                 
                Base *copy(void) {                                                  
                        return new Test(*this);                                     
                }                                                                   
        };                                                                          
        new Test();                                                                 
}                                                                                   
                                                                                    
int main(void) {                                                                    
        make<double>();                                                             
        return 0;                                                                   
}

compiling this with 'c++ main.cpp' gives the following errors:

main.cpp: In member function `Base* make()::Test::copy() [with T = double]':
main.cpp:13:   instantiated from here
main.cpp:10: Internal compiler error in find_function_data, at function.c:310
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://bugs.gentoo.org/> for instructions.
thom@rudicles functor $ 

Also known to fail on gcc-3.2.3

-- 
           Summary: ICE when using implicit copy constructor for struct
                    defined in template function
           Product: gcc
           Version: 3.3.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: thomharp at charter dot net
                CC: gcc-bugs at gcc dot gnu dot org,thomharp at charter dot
                    net
  GCC host triplet: gentoo linux, kernel 2.4.20, athlon k6


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13744