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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++/110065] auto in template argument causes ICE, also
 accepts-invalid
Date: Wed, 31 May 2023 21:54:43 +0000
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X-Bugzilla-Type: changed
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 12.1.0
X-Bugzilla-Keywords: accepts-invalid, ice-on-invalid-code
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110065

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2023-05-31
           Keywords|                            |accepts-invalid,
                   |                            |ice-on-invalid-code

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Reduced testcase:
```
template <typename a>
inline constexpr bool t =3D false;

int main()
{
    return t<auto(&)(const int*) -> auto&>;
}
```
If we `s/return//` we get the accept invalid too.=