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From: "ppalka at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/103994] Module ICE in write_var_def with global variable in
 global module fragment
Date: Sat, 27 Jan 2024 16:15:16 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103994

Patrick Palka <ppalka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2024-01-27
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1

--- Comment #4 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Reduced testcase exhibiting the latest ICE:

$ cat 103994.H
template <typename> struct TransparentSupport {
  template <typename> using key_arg =3D int;
};
template <typename Key> struct Map {
  template <typename LookupKey>
  using key_arg =3D typename TransparentSupport<Key>::template
key_arg<LookupKey>;
};
struct MapKey {
  Map<MapKey> map_;
};

$ g++ -fmodule-header 103994.H
103994.H: internal compiler error: in insert, at cp/module.cc:4924=