[Bug c++/31330] New: small template-use example crashes g++ w/internal error

["ilya at broad dot mit dot edu" <gcc-bugzilla at gcc dot gnu dot org>]

/*
the following example crashes g++:

4:13pm ilya@wga1 /wga/dev/ilya > g++ -v
Using built-in specs.
Target: ia64-unknown-linux-gnu
Configured with: ../configure --prefix=/wga1/gcc-4.1.1
Thread model: posix
gcc version 4.1.1
4:13pm ilya@wga1 /wga/dev/ilya > echo $OSTYPE
linux
4:13pm ilya@wga1 /wga/dev/ilya > echo $MACHTYPE
ia64
4:13pm ilya@wga1 /wga/dev/ilya > g++ t2.cc
t2.cc:8: internal compiler error: in is_ancestor, at cp/name-lookup.c:2222
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
4:13pm ilya@wga1 /wga/dev/ilya > 


*/

class A {
  template <class B> void foo(B b) {
  }
};

template <class SubOfB> 
void SubOfB::bar(A a) {
  a.foo(*this);
}


-- 
           Summary: small template-use example crashes g++ w/internal error
           Product: gcc
           Version: 4.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ilya at broad dot mit dot edu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31330