[Bug c++/95608] New: c++20 wrong code for defaulted equality comparison on array member variables

[vermaelen.wouter at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95608

            Bug ID: 95608
           Summary: c++20 wrong code for defaulted equality comparison on
                    array member variables
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: vermaelen.wouter at gmail dot com
  Target Milestone: ---

The generated code does not actually compare the content of the array. It does
with clang and msvc.

-----------------

https://godbolt.org/z/VkuVXj

-----------------

struct S {
    int a[5];
    bool operator==(const S&) const = default;
};

bool f(const S& x, const S& y) {
    return x == y;
}

-----------------