[Bug libstdc++/115247] New: experimental/simd/pr109261_constexpr_simd.cc FAILs on 32-bit x86

["ro at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115247

            Bug ID: 115247
           Summary: experimental/simd/pr109261_constexpr_simd.cc FAILs on
                    32-bit x86
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ro at gcc dot gnu.org
                CC: mkretz at gcc dot gnu.org
  Target Milestone: ---
            Target: i?86-*-*, x86_64-*-*

The experimental/simd/pr109261_constexpr_simd.cc test FAILs on 32-bit x86
(seen on all of Solaris, Linux, Darwin):

FAIL: experimental/simd/pr109261_constexpr_simd.cc -msse2 -O2 -Wno-psabi (test
for excess errors)

Excess errors:
/var/gcc/regression/master/11.4-gcc/build/i386-pc-solaris2.11/libstdc++-v3/include/experimental/bits/simd_builtin.h:131:
error: could not convert
'std::experimental::parallelism_v2::__vec_shuffle<__vector(4) wchar_t,
__extract_part<2, 3, 2, wchar_t, 3>(_SimdWrapper<wchar_t, 3,
void>)::<lambda(std::size_t)>, std::integer_sequence<unsigned int, 0, 1>
>(std::experimental::parallelism_v2::__as_vector<_SimdWrapper<wchar_t, 3, void>
>(__x), (std::make_index_sequence<2>(), std::make_index_sequence<2>()),
(<lambda closure object>std::experimental::parallelism_v2::__extract_part<2, 3,
2, wchar_t, 3>(_SimdWrapper<wchar_t, 3, void>)::<lambda(std::size_t)>(),
std::experimental::parallelism_v2::__extract_part<2, 3, 2, wchar_t,
3>(_SimdWrapper<wchar_t, 3, void>)::<lambda(std::size_t)>()))' from
'__vector(2) wchar_t' to 'std::conditional_t<false, wchar_t,
std::experimental::parallelism_v2::_SimdWrapper<wchar_t, 2, void> >' {aka
'std::conditional<false, wchar_t,
std::experimental::parallelism_v2::_SimdWrapper<wchar_t, 2, void> >::type'}