[Bug c++/103672] [10/11/12 Regression] using with template<template<class...> class> causes internal compiler error

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103672

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-12-13
           Keywords|                            |ice-on-valid-code
      Known to work|                            |10.2.0, 9.4.0
                 CC|                            |ppalka at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW
      Known to fail|                            |10.3.0, 11.1.0, 12.0
            Summary|using with                  |[10/11/12 Regression] using
                   |template<template<class...> |with
                   |class> causes internal      |template<template<class...>
                   |compiler error              |class> causes internal
                   |                            |compiler error
     Ever confirmed|0                           |1

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This started to ICE on trunk with r11-6614

  c++: Fix ICE with CTAD in concept [PR98611]

It was also backported to 10.3 as r10-9635