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added the missing namespace detail for some avx2 functions #1426

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serge-sans-paille merged 1 commit into from
Oct 13, 2026
Merged

added the missing namespace detail for some avx2 functions #1426

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83 changes: 42 additions & 41 deletions include/xsimd/arch/xsimd_avx2.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -487,28 +487,27 @@ namespace xsimd
return _mm256_xor_si256(self, other);
}

// complex_low
template <class A>
XSIMD_INLINE batch<double, A> complex_low(batch<std::complex<double>, A> const& self, requires_arch<avx2>) noexcept
{
__m256d tmp0 = _mm256_permute4x64_pd(self.real(), _MM_SHUFFLE(3, 1, 1, 0));
__m256d tmp1 = _mm256_permute4x64_pd(self.imag(), _MM_SHUFFLE(1, 2, 0, 0));
return _mm256_blend_pd(tmp0, tmp1, 10);
}

// complex_high
template <class A>
XSIMD_INLINE batch<double, A> complex_high(batch<std::complex<double>, A> const& self, requires_arch<avx2>) noexcept
{
__m256d tmp0 = _mm256_permute4x64_pd(self.real(), _MM_SHUFFLE(3, 3, 1, 2));
__m256d tmp1 = _mm256_permute4x64_pd(self.imag(), _MM_SHUFFLE(3, 2, 2, 0));
return _mm256_blend_pd(tmp0, tmp1, 10);
}

// fast_cast
namespace detail
{
// complex_low
template <class A>
XSIMD_INLINE batch<double, A> complex_low(batch<std::complex<double>, A> const& self, requires_arch<avx2>) noexcept
{
__m256d tmp0 = _mm256_permute4x64_pd(self.real(), _MM_SHUFFLE(3, 1, 1, 0));
__m256d tmp1 = _mm256_permute4x64_pd(self.imag(), _MM_SHUFFLE(1, 2, 0, 0));
return _mm256_blend_pd(tmp0, tmp1, 10);
}

// complex_high
template <class A>
XSIMD_INLINE batch<double, A> complex_high(batch<std::complex<double>, A> const& self, requires_arch<avx2>) noexcept
{
__m256d tmp0 = _mm256_permute4x64_pd(self.real(), _MM_SHUFFLE(3, 3, 1, 2));
__m256d tmp1 = _mm256_permute4x64_pd(self.imag(), _MM_SHUFFLE(3, 2, 2, 0));
return _mm256_blend_pd(tmp0, tmp1, 10);
}

// fast_cast
template <class A>
XSIMD_INLINE batch<double, A> fast_cast(batch<uint64_t, A> const& x, batch<double, A> const&, requires_arch<avx2>) noexcept
{
Expand Down Expand Up @@ -656,29 +655,31 @@ namespace xsimd
return lt(self, other, avx {});
}
}

// load_complex
template <class A>
XSIMD_INLINE batch<std::complex<float>, A> load_complex(batch<float, A> const& hi, batch<float, A> const& lo, requires_arch<avx2>) noexcept
{
using batch_type = batch<float, A>;
batch_type real = _mm256_castpd_ps(
_mm256_permute4x64_pd(
_mm256_castps_pd(_mm256_shuffle_ps(hi, lo, _MM_SHUFFLE(2, 0, 2, 0))),
_MM_SHUFFLE(3, 1, 2, 0)));
batch_type imag = _mm256_castpd_ps(
_mm256_permute4x64_pd(
_mm256_castps_pd(_mm256_shuffle_ps(hi, lo, _MM_SHUFFLE(3, 1, 3, 1))),
_MM_SHUFFLE(3, 1, 2, 0)));
return { real, imag };
}
template <class A>
XSIMD_INLINE batch<std::complex<double>, A> load_complex(batch<double, A> const& hi, batch<double, A> const& lo, requires_arch<avx2>) noexcept
namespace detail
{
using batch_type = batch<double, A>;
batch_type real = _mm256_permute4x64_pd(_mm256_unpacklo_pd(hi, lo), _MM_SHUFFLE(3, 1, 2, 0));
batch_type imag = _mm256_permute4x64_pd(_mm256_unpackhi_pd(hi, lo), _MM_SHUFFLE(3, 1, 2, 0));
return { real, imag };
// load_complex
template <class A>
XSIMD_INLINE batch<std::complex<float>, A> load_complex(batch<float, A> const& hi, batch<float, A> const& lo, requires_arch<avx2>) noexcept
{
using batch_type = batch<float, A>;
batch_type real = _mm256_castpd_ps(
_mm256_permute4x64_pd(
_mm256_castps_pd(_mm256_shuffle_ps(hi, lo, _MM_SHUFFLE(2, 0, 2, 0))),
_MM_SHUFFLE(3, 1, 2, 0)));
batch_type imag = _mm256_castpd_ps(
_mm256_permute4x64_pd(
_mm256_castps_pd(_mm256_shuffle_ps(hi, lo, _MM_SHUFFLE(3, 1, 3, 1))),
_MM_SHUFFLE(3, 1, 2, 0)));
return { real, imag };
}
template <class A>
XSIMD_INLINE batch<std::complex<double>, A> load_complex(batch<double, A> const& hi, batch<double, A> const& lo, requires_arch<avx2>) noexcept
{
using batch_type = batch<double, A>;
batch_type real = _mm256_permute4x64_pd(_mm256_unpacklo_pd(hi, lo), _MM_SHUFFLE(3, 1, 2, 0));
batch_type imag = _mm256_permute4x64_pd(_mm256_unpackhi_pd(hi, lo), _MM_SHUFFLE(3, 1, 2, 0));
return { real, imag };
}
}

// load_unaligned<batch_bool>
Expand Down
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