Preview: simd_scalar.h
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//opt/rh/gcc-toolset-14/root/usr/include/c++/14/experimental/bits/simd_scalar.h
// Simd scalar ABI specific implementations -*- C++ -*-
// Copyright (C) 2020-2024 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
#ifndef _GLIBCXX_EXPERIMENTAL_SIMD_SCALAR_H_
#define _GLIBCXX_EXPERIMENTAL_SIMD_SCALAR_H_
#if __cplusplus >= 201703L
#include <cmath>
_GLIBCXX_SIMD_BEGIN_NAMESPACE
// __promote_preserving_unsigned{{{
// work around crazy semantics of unsigned integers of lower rank than int:
// Before applying an operator the operands are promoted to int. In which case
// over- or underflow is UB, even though the operand types were unsigned.
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC constexpr decltype(auto)
__promote_preserving_unsigned(const _Tp& __x)
{
if constexpr (is_signed_v<decltype(+__x)> && is_unsigned_v<_Tp>)
return static_cast<unsigned int>(__x);
else
return __x;
}
// }}}
struct _CommonImplScalar;
struct _CommonImplBuiltin;
struct _SimdImplScalar;
struct _MaskImplScalar;
// simd_abi::_Scalar {{{
struct simd_abi::_Scalar
{
template <typename _Tp>
static constexpr size_t _S_size = 1;
template <typename _Tp>
static constexpr size_t _S_full_size = 1;
template <typename _Tp>
static constexpr bool _S_is_partial = false;
struct _IsValidAbiTag : true_type {};
template <typename _Tp>
struct _IsValidSizeFor : true_type {};
template <typename _Tp>
struct _IsValid : __is_vectorizable<_Tp> {};
template <typename _Tp>
static constexpr bool _S_is_valid_v = _IsValid<_Tp>::value;
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_masked(bool __x)
{ return __x; }
using _CommonImpl = _CommonImplScalar;
using _SimdImpl = _SimdImplScalar;
using _MaskImpl = _MaskImplScalar;
template <typename _Tp, bool = _S_is_valid_v<_Tp>>
struct __traits : _InvalidTraits {};
template <typename _Tp>
struct __traits<_Tp, true>
{
using _IsValid = true_type;
using _SimdImpl = _SimdImplScalar;
using _MaskImpl = _MaskImplScalar;
using _SimdMember = _Tp;
using _MaskMember = bool;
static constexpr size_t _S_simd_align = alignof(_SimdMember);
static constexpr size_t _S_mask_align = alignof(_MaskMember);
// nothing the user can spell converts to/from simd/simd_mask
struct _SimdCastType { _SimdCastType() = delete; };
struct _MaskCastType { _MaskCastType() = delete; };
struct _SimdBase {};
struct _MaskBase {};
};
};
// }}}
// _CommonImplScalar {{{
struct _CommonImplScalar
{
// _S_store {{{
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static void
_S_store(_Tp __x, void* __addr)
{ __builtin_memcpy(__addr, &__x, sizeof(_Tp)); }
// }}}
// _S_store_bool_array(_BitMask) {{{
template <size_t _Np, bool _Sanitized>
_GLIBCXX_SIMD_INTRINSIC static constexpr void
_S_store_bool_array(_BitMask<_Np, _Sanitized> __x, bool* __mem)
{
__make_dependent_t<decltype(__x), _CommonImplBuiltin>::_S_store_bool_array(
__x, __mem);
}
// }}}
};
// }}}
// _SimdImplScalar {{{
struct _SimdImplScalar
{
// member types {{{2
using abi_type = simd_abi::scalar;
template <typename _Tp>
using _TypeTag = _Tp*;
// _S_broadcast {{{2
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_broadcast(_Tp __x) noexcept
{ return __x; }
// _S_generator {{{2
template <typename _Fp, typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_generator(_Fp&& __gen, _TypeTag<_Tp>)
{ return __gen(_SizeConstant<0>()); }
// _S_load {{{2
template <typename _Tp, typename _Up>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_load(const _Up* __mem, _TypeTag<_Tp>) noexcept
{ return static_cast<_Tp>(__mem[0]); }
// _S_masked_load {{{2
template <typename _Tp, typename _Up>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_masked_load(_Tp __merge, bool __k, const _Up* __mem) noexcept
{
if (__k)
__merge = static_cast<_Tp>(__mem[0]);
return __merge;
}
// _S_store {{{2
template <typename _Tp, typename _Up>
_GLIBCXX_SIMD_INTRINSIC static constexpr void
_S_store(_Tp __v, _Up* __mem, _TypeTag<_Tp>) noexcept
{ __mem[0] = static_cast<_Up>(__v); }
// _S_masked_store {{{2
template <typename _Tp, typename _Up>
_GLIBCXX_SIMD_INTRINSIC static constexpr void
_S_masked_store(const _Tp __v, _Up* __mem, const bool __k) noexcept
{ if (__k) __mem[0] = __v; }
// _S_negate {{{2
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_negate(_Tp __x) noexcept
{ return !__x; }
// _S_reduce {{{2
template <typename _Tp, typename _BinaryOperation>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_reduce(const simd<_Tp, simd_abi::scalar>& __x, const _BinaryOperation&)
{ return __x._M_data; }
// _S_min, _S_max {{{2
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_min(const _Tp __a, const _Tp __b)
{ return std::min(__a, __b); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_max(const _Tp __a, const _Tp __b)
{ return std::max(__a, __b); }
// _S_complement {{{2
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_complement(_Tp __x) noexcept
{ return static_cast<_Tp>(~__x); }
// _S_unary_minus {{{2
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_unary_minus(_Tp __x) noexcept
{ return static_cast<_Tp>(-__x); }
// arithmetic operators {{{2
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_plus(_Tp __x, _Tp __y)
{
return static_cast<_Tp>(__promote_preserving_unsigned(__x)
+ __promote_preserving_unsigned(__y));
}
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_minus(_Tp __x, _Tp __y)
{
return static_cast<_Tp>(__promote_preserving_unsigned(__x)
- __promote_preserving_unsigned(__y));
}
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_multiplies(_Tp __x, _Tp __y)
{
return static_cast<_Tp>(__promote_preserving_unsigned(__x)
* __promote_preserving_unsigned(__y));
}
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_divides(_Tp __x, _Tp __y)
{
return static_cast<_Tp>(__promote_preserving_unsigned(__x)
/ __promote_preserving_unsigned(__y));
}
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_modulus(_Tp __x, _Tp __y)
{
return static_cast<_Tp>(__promote_preserving_unsigned(__x)
% __promote_preserving_unsigned(__y));
}
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_bit_and(_Tp __x, _Tp __y)
{
if constexpr (is_floating_point_v<_Tp>)
{
using _Ip = __int_for_sizeof_t<_Tp>;
return __bit_cast<_Tp>(__bit_cast<_Ip>(__x) & __bit_cast<_Ip>(__y));
}
else
return static_cast<_Tp>(__promote_preserving_unsigned(__x)
& __promote_preserving_unsigned(__y));
}
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_bit_or(_Tp __x, _Tp __y)
{
if constexpr (is_floating_point_v<_Tp>)
{
using _Ip = __int_for_sizeof_t<_Tp>;
return __bit_cast<_Tp>(__bit_cast<_Ip>(__x) | __bit_cast<_Ip>(__y));
}
else
return static_cast<_Tp>(__promote_preserving_unsigned(__x)
| __promote_preserving_unsigned(__y));
}
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_bit_xor(_Tp __x, _Tp __y)
{
if constexpr (is_floating_point_v<_Tp>)
{
using _Ip = __int_for_sizeof_t<_Tp>;
return __bit_cast<_Tp>(__bit_cast<_Ip>(__x) ^ __bit_cast<_Ip>(__y));
}
else
return static_cast<_Tp>(__promote_preserving_unsigned(__x)
^ __promote_preserving_unsigned(__y));
}
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_bit_shift_left(_Tp __x, int __y)
{ return static_cast<_Tp>(__promote_preserving_unsigned(__x) << __y); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_bit_shift_right(_Tp __x, int __y)
{ return static_cast<_Tp>(__promote_preserving_unsigned(__x) >> __y); }
// math {{{2
// frexp, modf and copysign implemented in simd_math.h
template <typename _Tp>
using _ST = _SimdTuple<_Tp, simd_abi::scalar>;
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_acos(_Tp __x)
{ return std::acos(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_asin(_Tp __x)
{ return std::asin(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_atan(_Tp __x)
{ return std::atan(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_cos(_Tp __x)
{ return std::cos(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_sin(_Tp __x)
{ return std::sin(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_tan(_Tp __x)
{ return std::tan(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_acosh(_Tp __x)
{ return std::acosh(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_asinh(_Tp __x)
{ return std::asinh(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_atanh(_Tp __x)
{ return std::atanh(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_cosh(_Tp __x)
{ return std::cosh(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_sinh(_Tp __x)
{ return std::sinh(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_tanh(_Tp __x)
{ return std::tanh(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_atan2(_Tp __x, _Tp __y)
{ return std::atan2(__x, __y); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_exp(_Tp __x)
{ return std::exp(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_exp2(_Tp __x)
{ return std::exp2(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_expm1(_Tp __x)
{ return std::expm1(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_log(_Tp __x)
{ return std::log(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_log10(_Tp __x)
{ return std::log10(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_log1p(_Tp __x)
{ return std::log1p(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_log2(_Tp __x)
{ return std::log2(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_logb(_Tp __x)
{ return std::logb(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _ST<int>
_S_ilogb(_Tp __x)
{ return {std::ilogb(__x)}; }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_pow(_Tp __x, _Tp __y)
{ return std::pow(__x, __y); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_abs(_Tp __x)
{ return std::abs(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_fabs(_Tp __x)
{ return std::fabs(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_sqrt(_Tp __x)
{ return std::sqrt(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_cbrt(_Tp __x)
{ return std::cbrt(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_erf(_Tp __x)
{ return std::erf(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_erfc(_Tp __x)
{ return std::erfc(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_lgamma(_Tp __x)
{ return std::lgamma(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_tgamma(_Tp __x)
{ return std::tgamma(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_trunc(_Tp __x)
{ return std::trunc(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_floor(_Tp __x)
{ return std::floor(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_ceil(_Tp __x)
{ return std::ceil(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_nearbyint(_Tp __x)
{ return std::nearbyint(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_rint(_Tp __x)
{ return std::rint(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _ST<long>
_S_lrint(_Tp __x)
{ return {std::lrint(__x)}; }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _ST<long long>
_S_llrint(_Tp __x)
{ return {std::llrint(__x)}; }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_round(_Tp __x)
{ return std::round(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _ST<long>
_S_lround(_Tp __x)
{ return {std::lround(__x)}; }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _ST<long long>
_S_llround(_Tp __x)
{ return {std::llround(__x)}; }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_ldexp(_Tp __x, _ST<int> __y)
{ return std::ldexp(__x, __y.first); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_scalbn(_Tp __x, _ST<int> __y)
{ return std::scalbn(__x, __y.first); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_scalbln(_Tp __x, _ST<long> __y)
{ return std::scalbln(__x, __y.first); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_fmod(_Tp __x, _Tp __y)
{ return std::fmod(__x, __y); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_remainder(_Tp __x, _Tp __y)
{ return std::remainder(__x, __y); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_nextafter(_Tp __x, _Tp __y)
{ return std::nextafter(__x, __y); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_fdim(_Tp __x, _Tp __y)
{ return std::fdim(__x, __y); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_fmax(_Tp __x, _Tp __y)
{ return std::fmax(__x, __y); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_fmin(_Tp __x, _Tp __y)
{ return std::fmin(__x, __y); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_fma(_Tp __x, _Tp __y, _Tp __z)
{ return std::fma(__x, __y, __z); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static _Tp
_S_remquo(_Tp __x, _Tp __y, _ST<int>* __z)
{ return std::remquo(__x, __y, &__z->first); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _ST<int>
_S_fpclassify(_Tp __x)
{ return {std::fpclassify(__x)}; }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_isfinite(_Tp __x)
{ return std::isfinite(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_isinf(_Tp __x)
{ return std::isinf(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_isnan(_Tp __x)
{ return std::isnan(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_isnormal(_Tp __x)
{ return std::isnormal(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_signbit(_Tp __x)
{ return std::signbit(__x); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_isgreater(_Tp __x, _Tp __y)
{ return std::isgreater(__x, __y); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_isgreaterequal(_Tp __x, _Tp __y)
{ return std::isgreaterequal(__x, __y); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_isless(_Tp __x, _Tp __y)
{ return std::isless(__x, __y); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_islessequal(_Tp __x, _Tp __y)
{ return std::islessequal(__x, __y); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_islessgreater(_Tp __x, _Tp __y)
{ return std::islessgreater(__x, __y); }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_isunordered(_Tp __x, _Tp __y)
{ return std::isunordered(__x, __y); }
// _S_increment & _S_decrement{{{2
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr void
_S_increment(_Tp& __x)
{ ++__x; }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr void
_S_decrement(_Tp& __x)
{ --__x; }
// compares {{{2
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_equal_to(_Tp __x, _Tp __y)
{ return __x == __y; }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_not_equal_to(_Tp __x, _Tp __y)
{ return __x != __y; }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_less(_Tp __x, _Tp __y)
{ return __x < __y; }
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_less_equal(_Tp __x, _Tp __y)
{ return __x <= __y; }
// smart_reference access {{{2
template <typename _Tp, typename _Up>
_GLIBCXX_SIMD_INTRINSIC static constexpr void
_S_set(_Tp& __v, [[maybe_unused]] int __i, _Up&& __x) noexcept
{
_GLIBCXX_DEBUG_ASSERT(__i == 0);
__v = static_cast<_Up&&>(__x);
}
// _S_masked_assign {{{2
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr void
_S_masked_assign(bool __k, _Tp& __lhs, _Tp __rhs)
{ if (__k) __lhs = __rhs; }
// _S_masked_cassign {{{2
template <typename _Op, typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr void
_S_masked_cassign(const bool __k, _Tp& __lhs, const _Tp __rhs, _Op __op)
{ if (__k) __lhs = __op(_SimdImplScalar{}, __lhs, __rhs); }
// _S_masked_unary {{{2
template <template <typename> class _Op, typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
_S_masked_unary(const bool __k, const _Tp __v)
{ return static_cast<_Tp>(__k ? _Op<_Tp>{}(__v) : __v); }
// }}}2
};
// }}}
// _MaskImplScalar {{{
struct _MaskImplScalar
{
// member types {{{
template <typename _Tp>
using _TypeTag = _Tp*;
// }}}
// _S_broadcast {{{
template <typename>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_broadcast(bool __x)
{ return __x; }
// }}}
// _S_load {{{
template <typename>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_load(const bool* __mem)
{ return __mem[0]; }
// }}}
// _S_to_bits {{{
_GLIBCXX_SIMD_INTRINSIC static constexpr _SanitizedBitMask<1>
_S_to_bits(bool __x)
{ return __x; }
// }}}
// _S_convert {{{
template <typename, bool _Sanitized>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_convert(_BitMask<1, _Sanitized> __x)
{ return __x[0]; }
template <typename, typename _Up, typename _UAbi>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_convert(simd_mask<_Up, _UAbi> __x)
{ return __x[0]; }
// }}}
// _S_from_bitmask {{{2
template <typename _Tp>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_from_bitmask(_SanitizedBitMask<1> __bits, _TypeTag<_Tp>) noexcept
{ return __bits[0]; }
// _S_masked_load {{{2
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_masked_load(bool __merge, bool __mask, const bool* __mem) noexcept
{
if (__mask)
__merge = __mem[0];
return __merge;
}
// _S_store {{{2
_GLIBCXX_SIMD_INTRINSIC static constexpr void
_S_store(bool __v, bool* __mem) noexcept
{ __mem[0] = __v; }
// _S_masked_store {{{2
_GLIBCXX_SIMD_INTRINSIC static constexpr void
_S_masked_store(const bool __v, bool* __mem, const bool __k) noexcept
{
if (__k)
__mem[0] = __v;
}
// logical and bitwise operators {{{2
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_logical_and(bool __x, bool __y)
{ return __x && __y; }
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_logical_or(bool __x, bool __y)
{ return __x || __y; }
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_bit_not(bool __x)
{ return !__x; }
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_bit_and(bool __x, bool __y)
{ return __x && __y; }
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_bit_or(bool __x, bool __y)
{ return __x || __y; }
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_bit_xor(bool __x, bool __y)
{ return __x != __y; }
// smart_reference access {{{2
_GLIBCXX_SIMD_INTRINSIC static constexpr void
_S_set(bool& __k, [[maybe_unused]] int __i, bool __x) noexcept
{
_GLIBCXX_DEBUG_ASSERT(__i == 0);
__k = __x;
}
// _S_masked_assign {{{2
_GLIBCXX_SIMD_INTRINSIC static constexpr void
_S_masked_assign(bool __k, bool& __lhs, bool __rhs)
{
if (__k)
__lhs = __rhs;
}
// }}}2
// _S_all_of {{{
template <typename _Tp, typename _Abi>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_all_of(simd_mask<_Tp, _Abi> __k)
{ return __k._M_data; }
// }}}
// _S_any_of {{{
template <typename _Tp, typename _Abi>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_any_of(simd_mask<_Tp, _Abi> __k)
{ return __k._M_data; }
// }}}
// _S_none_of {{{
template <typename _Tp, typename _Abi>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_none_of(simd_mask<_Tp, _Abi> __k)
{ return !__k._M_data; }
// }}}
// _S_some_of {{{
template <typename _Tp, typename _Abi>
_GLIBCXX_SIMD_INTRINSIC static constexpr bool
_S_some_of(simd_mask<_Tp, _Abi>)
{ return false; }
// }}}
// _S_popcount {{{
template <typename _Tp, typename _Abi>
_GLIBCXX_SIMD_INTRINSIC static constexpr int
_S_popcount(simd_mask<_Tp, _Abi> __k)
{ return __k._M_data; }
// }}}
// _S_find_first_set {{{
template <typename _Tp, typename _Abi>
_GLIBCXX_SIMD_INTRINSIC static constexpr int
_S_find_first_set(simd_mask<_Tp, _Abi>)
{ return 0; }
// }}}
// _S_find_last_set {{{
template <typename _Tp, typename _Abi>
_GLIBCXX_SIMD_INTRINSIC static constexpr int
_S_find_last_set(simd_mask<_Tp, _Abi>)
{ return 0; }
// }}}
};
// }}}
_GLIBCXX_SIMD_END_NAMESPACE
#endif // __cplusplus >= 201703L
#endif // _GLIBCXX_EXPERIMENTAL_SIMD_SCALAR_H_
// vim: foldmethod=marker sw=2 noet ts=8 sts=2 tw=80
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