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From: "vanyacpp at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/107161] gcc doesn't constant fold member if any other
 member is mutable
Date: Thu, 06 Oct 2022 12:39:02 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107161

--- Comment #2 from Ivan Sorokin <vanyacpp at gmail dot com> ---
> Do constexpr/consteval work in such circumstances?

Yes, constexpr works for variables like "p.a":

extern constexpr mytype p =3D {1, 2};

int foo()
{
    constexpr int t =3D p.a + 10;
    return t;
}

foo():
        mov     eax, 11
        ret

https://godbolt.org/z/K9a69E4ar=