[Bug c++/103497] New: ICE when decltype(auto)... as parameters

[hewillk at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103497

            Bug ID: 103497
           Summary: ICE when decltype(auto)... as parameters
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hewillk at gmail dot com
  Target Milestone: ---

Feels like 12 regression.

void foo(decltype(auto)... args);

int main() {
  foo();
}

https://godbolt.org/z/PqWTWKc6b