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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/110031] ICE: error reporting routines re-entered on
 non-type template argument
Date: Tue, 30 May 2023 03:41:29 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110031

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Self-contained testcase without any headers:
```
template <typename T>
[[deprecated]]=20
inline constexpr bool t =3D true ;

template <bool a>
struct enableif;

template<>
struct enableif<true>
{
        using y =3D int;
};
template <bool a>
using enableif_t =3D enableif<a>::y;

template <typename T, enableif_t<t<T>> =3D 0>
struct A {  A(T &&)  {  }};

template <typename T>
struct A<T> {
  A(T &&) =3D delete;
};

int main(void)
{
  A<double> a{5.3};
  return 0;
}
```=