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From: "nathan at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/95263] [11 Regression] ICE in lookup_template_class_1 since
 r11-504-g74744bb1f2847b5b
Date: Tue, 26 May 2020 17:09:32 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95263

--- Comment #1 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
Reduced:

template <typename> class TPL {
  template <int> using INT =3D int;
};

template <typename T> class Klass
{
public:
  template <int I> using ALIAS =3D typename TPL<T>::INT<I>;

  template <int> static void FUNC (); // OK

  template <int I, typename> static ALIAS<I> FUNC (); // SFINAE error
};

void Fn ()
{
  Klass<int>::FUNC<0> ();
}=