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From: "rsandifo at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/68703] __attribute__((vector_size(N))) template member
 confusion
Date: Thu, 04 Jan 2024 11:46:44 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D68703

Richard Sandiford <rsandifo at gcc dot gnu.org> changed:

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

--- Comment #11 from Richard Sandiford <rsandifo at gcc dot gnu.org> ---
FWIW, the following adaption of the original testcase still fails on trunk,=
 but
is accepted by Clang:

template <int N =3D 4>
struct D {
    using t =3D int __attribute__((vector_size(N * sizeof(int))));
    t v;
    int f1() { return this->v[N-1]; }
    int f2() { return v[N-1]; }
};

int main(int ac, char**)
{
  D<> d =3D { { ac } };
  return d.f1() + d.f2();
}

Same with a typedef instead of "using".  But that's probably just another
instance of PR88600/PR58855.=