[Bug c++/99365] New: ICE on partial specialization with constrained placeholder NTTP

[johelegp at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99365

            Bug ID: 99365
           Summary: ICE on partial specialization with constrained
                    placeholder NTTP
           Product: gcc
           Version: 11.0
               URL: https://godbolt.org/z/nxTEaW
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: johelegp at gmail dot com
                CC: johelegp at gmail dot com
  Target Milestone: ---

See https://godbolt.org/z/nxTEaW.
```C++
template<class>concept C=true;
template<C auto>struct A{};
template<C auto V>requires true struct A<V>{};
```
I think CE recompiles GCC trunk daily, and this was working yesterday.