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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/98712] Incorrect defaulted operator== at compile time and
 runtime when declared constexpr and inheriting (c++20)
Date: Thu, 12 Aug 2021 19:16:47 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98712

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Similarly for
#include <compare>

struct S
{
    int s =3D 0;
    S(int s) : s(s) {}
    auto operator<=3D>(const S&) const =3D default;
};

struct T : S
{
    T(int s) : S(s) {}
    constexpr auto operator<=3D>(const T&) const =3D default;
};

int main() { return T(0) >=3D T(1); } // Expected 0, but returns 1=