[Bug c++/102899] New: Performing `delete this` within destructor in constant evaluation results in infinitely recursive error message

[friedkeenan at protonmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102899

            Bug ID: 102899
           Summary: Performing `delete this` within destructor in constant
                    evaluation results in infinitely recursive error
                    message
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: friedkeenan at protonmail dot com
  Target Milestone: ---

See the following code:

struct Test {
    constexpr Test() = default;

    constexpr ~Test() {
        delete this;
    }
};

consteval bool test() {
    const auto obj = Test{};

    return true;
}

static_assert(test());

Godbolt link: https://godbolt.org/z/fv3dGWsY1

This bug still occurs when `obj` is heap-allocated and destroyed with
`std::destroy_at`.

This issue does not occur if the `delete this` statement is relegated to
another method, including the constructor; it only occurs when `delete this` is
placed within the destructor.