[Bug c++/104682] New: Missing deprecated warning on enumerator in class template

[mpolacek at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104682

            Bug ID: 104682
           Summary: Missing deprecated warning on enumerator in class
                    template
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mpolacek at gcc dot gnu.org
  Target Milestone: ---

Here we only emit the "is deprecated" warning for S2::A, but not S<int>::A. 
Clang emits a warning for both.

template<typename>
struct S {
  enum {
    A __attribute__((deprecated))
  };
};

struct S2 {
  enum {
    A __attribute__((deprecated))
  };
};

void
g ()
{
  auto a = S<int>::A; // { dg-warning "is deprecated" }
  auto b = S2::A; // { dg-warning "is deprecated" }
}

Not a regression.