Hi,
Thanks for review @Richard!. I have tried to address most of your comments in
this patch.
The major updates include optimizing operator[] for masks, find_first_set and
find_last_set.
My further comments on some of the pointed out issues are
a. regarding the coverage of types supported for sve : Yes, all the types are
covered by
mapping any type using simple two rules : the size of the type and signedness
of it.
b. all the operator overloads now use infix operators. For division and
remainder,
the inactive elements are padded with 1 to avoid undefined behavior.
c. isnan is optimized to have only two cases i.e finite_math_only case or case
where svcmpuo is used.
d. _S_load for masks (bool) now uses svld1 by reinterpret_casting the pointer
to uint8_t pointer and then performing a svunpklo.
The same optimization is not done for masked_load and stores, as conversion of
mask from a higher size type to lower size type is not optimal (sequential).
e. _S_unary_minus could not use svneg_x because it does not support unsigned
types.
f. added specializations for reductions.
g. find_first_set and find_last_set are optimized using svclastb.
libstdc++-v3/ChangeLog:
* include/Makefile.am: Add simd_sve.h.
* include/Makefile.in: Add simd_sve.h.
* include/experimental/bits/simd.h: Add new SveAbi.
* include/experimental/bits/simd_builtin.h: Use
__no_sve_deduce_t to support existing Neon Abi.
* include/experimental/bits/simd_converter.h: Convert
sequentially when sve is available.
* include/experimental/bits/simd_detail.h: Define sve
specific macro.
* include/experimental/bits/simd_math.h: Fallback frexp
to execute sequntially when sve is available, to handle
fixed_size_simd return type that always uses sve.
* include/experimental/simd: Include bits/simd_sve.h.
* testsuite/experimental/simd/tests/bits/main.h: Enable
testing for sve128, sve256, sve512.
* include/experimental/bits/simd_sve.h: New file.
Signed-off-by: Srinivas Yadav Singanaboina
vasu.srinivasvasu...@gmail.com
---
libstdc++-v3/include/Makefile.am | 1 +
libstdc++-v3/include/Makefile.in | 1 +
libstdc++-v3/include/experimental/bits/simd.h | 131 +-
.../include/experimental/bits/simd_builtin.h | 35 +-
.../experimental/bits/simd_converter.h | 57 +-
.../include/experimental/bits/simd_detail.h | 7 +-
.../include/experimental/bits/simd_math.h | 14 +-
.../include/experimental/bits/simd_sve.h | 1863 +++++++++++++++++
libstdc++-v3/include/experimental/simd | 3 +
.../experimental/simd/tests/bits/main.h | 3 +
10 files changed, 2084 insertions(+), 31 deletions(-)
create mode 100644 libstdc++-v3/include/experimental/bits/simd_sve.h
diff --git a/libstdc++-v3/include/Makefile.am b/libstdc++-v3/include/Makefile.am
index 6209f390e08..1170cb047a6 100644
--- a/libstdc++-v3/include/Makefile.am
+++ b/libstdc++-v3/include/Makefile.am
@@ -826,6 +826,7 @@ experimental_bits_headers = \
${experimental_bits_srcdir}/simd_neon.h \
${experimental_bits_srcdir}/simd_ppc.h \
${experimental_bits_srcdir}/simd_scalar.h \
+ ${experimental_bits_srcdir}/simd_sve.h \
${experimental_bits_srcdir}/simd_x86.h \
${experimental_bits_srcdir}/simd_x86_conversions.h \
${experimental_bits_srcdir}/string_view.tcc \
diff --git a/libstdc++-v3/include/Makefile.in b/libstdc++-v3/include/Makefile.in
index 596fa0d2390..bc44582a2da 100644
--- a/libstdc++-v3/include/Makefile.in
+++ b/libstdc++-v3/include/Makefile.in
@@ -1172,6 +1172,7 @@ experimental_bits_headers = \
${experimental_bits_srcdir}/simd_neon.h \
${experimental_bits_srcdir}/simd_ppc.h \
${experimental_bits_srcdir}/simd_scalar.h \
+ ${experimental_bits_srcdir}/simd_sve.h \
${experimental_bits_srcdir}/simd_x86.h \
${experimental_bits_srcdir}/simd_x86_conversions.h \
${experimental_bits_srcdir}/string_view.tcc \
diff --git a/libstdc++-v3/include/experimental/bits/simd.h
b/libstdc++-v3/include/experimental/bits/simd.h
index 90523ea57dc..d274cd740fe 100644
--- a/libstdc++-v3/include/experimental/bits/simd.h
+++ b/libstdc++-v3/include/experimental/bits/simd.h
@@ -39,12 +39,16 @@
#include <functional>
#include <iosfwd>
#include <utility>
+#include <algorithm>
#if _GLIBCXX_SIMD_X86INTRIN
#include <x86intrin.h>
#elif _GLIBCXX_SIMD_HAVE_NEON
#include <arm_neon.h>
#endif
+#if _GLIBCXX_SIMD_HAVE_SVE
+#include <arm_sve.h>
+#endif
/** @ingroup ts_simd
* @{
@@ -83,6 +87,12 @@ using __m512d [[__gnu__::__vector_size__(64)]] = double;
using __m512i [[__gnu__::__vector_size__(64)]] = long long;
#endif
+#if _GLIBCXX_SIMD_HAVE_SVE
+constexpr inline int __sve_vectorized_size_bytes = __ARM_FEATURE_SVE_BITS / 8;
+#else
+constexpr inline int __sve_vectorized_size_bytes = 0;
+#endif
+
namespace simd_abi {
// simd_abi forward declarations {{{
// implementation details:
@@ -108,6 +118,9 @@ template <int _UsedBytes>
template <int _UsedBytes>
struct _VecBltnBtmsk;
+template <int _UsedBytes, int _TotalBytes = __sve_vectorized_size_bytes>
+ struct _SveAbi;
+
template <typename _Tp, int _Np>
using _VecN = _VecBuiltin<sizeof(_Tp) * _Np>;
@@ -123,6 +136,9 @@ template <int _UsedBytes = 64>
template <int _UsedBytes = 16>
using _Neon = _VecBuiltin<_UsedBytes>;
+template <int _UsedBytes = __sve_vectorized_size_bytes>
+ using _Sve = _SveAbi<_UsedBytes, __sve_vectorized_size_bytes>;
+
// implementation-defined:
using __sse = _Sse<>;
using __avx = _Avx<>;
@@ -130,6 +146,7 @@ using __avx512 = _Avx512<>;
using __neon = _Neon<>;
using __neon128 = _Neon<16>;
using __neon64 = _Neon<8>;
+using __sve = _Sve<>;
// standard:
template <typename _Tp, size_t _Np, typename...>
@@ -250,6 +267,8 @@ constexpr inline bool __support_neon_float =
false;
#endif
+constexpr inline bool __have_sve = _GLIBCXX_SIMD_HAVE_SVE;
+
#ifdef _ARCH_PWR10
constexpr inline bool __have_power10vec = true;
#else
@@ -356,12 +375,13 @@ namespace __detail
| (__have_avx512vnni << 27)
| (__have_avx512vpopcntdq << 28)
| (__have_avx512vp2intersect << 29);
- else if constexpr (__have_neon)
+ else if constexpr (__have_neon || __have_sve)
return __have_neon
| (__have_neon_a32 << 1)
| (__have_neon_a64 << 2)
| (__have_neon_a64 << 2)
- | (__support_neon_float << 3);
+ | (__support_neon_float << 3)
+ | (__have_sve << 4);
else if constexpr (__have_power_vmx)
return __have_power_vmx
| (__have_power_vsx << 1)
@@ -733,6 +753,16 @@ template <typename _Abi>
return _Bytes <= 16 && is_same_v<simd_abi::_VecBuiltin<_Bytes>, _Abi>;
}
+// }}}
+// __is_sve_abi {{{
+template <typename _Abi>
+ constexpr bool
+ __is_sve_abi()
+ {
+ constexpr auto _Bytes = __abi_bytes_v<_Abi>;
+ return _Bytes <= __sve_vectorized_size_bytes &&
is_same_v<simd_abi::_Sve<_Bytes>, _Abi>;
+ }
+
// }}}
// __make_dependent_t {{{
template <typename, typename _Up>
@@ -998,6 +1028,9 @@ template <typename _Tp>
template <typename _Tp>
using _SimdWrapper64 = _SimdWrapper<_Tp, 64 / sizeof(_Tp)>;
+template <typename _Tp, size_t _Width>
+ struct _SveSimdWrapper;
+
// }}}
// __is_simd_wrapper {{{
template <typename _Tp>
@@ -2858,6 +2891,8 @@ template <typename _Tp>
constexpr size_t __bytes = __vectorized_sizeof<_Tp>();
if constexpr (__bytes == sizeof(_Tp))
return static_cast<scalar*>(nullptr);
+ else if constexpr (__have_sve)
+ return static_cast<_SveAbi<__sve_vectorized_size_bytes>*>(nullptr);
else if constexpr (__have_avx512vl || (__have_avx512f && __bytes == 64))
return static_cast<_VecBltnBtmsk<__bytes>*>(nullptr);
else
@@ -2951,6 +2986,9 @@ template <typename _Tp, typename _Abi =
simd_abi::__default_abi<_Tp>>
template <typename _Tp, size_t _Np, typename = void>
struct __deduce_impl;
+template <typename _Tp, size_t _Np, typename = void>
+ struct __no_sve_deduce_impl;
+
namespace simd_abi {
/**
* @tparam _Tp The requested `value_type` for the elements.
@@ -2965,6 +3003,12 @@ template <typename _Tp, size_t _Np, typename...>
template <typename _Tp, size_t _Np, typename... _Abis>
using deduce_t = typename deduce<_Tp, _Np, _Abis...>::type;
+
+template <typename _Tp, size_t _Np, typename...>
+ struct __no_sve_deduce : __no_sve_deduce_impl<_Tp, _Np> {};
+
+template <typename _Tp, size_t _Np, typename... _Abis>
+ using __no_sve_deduce_t = typename __no_sve_deduce<_Tp, _Np, _Abis...>::type;
} // namespace simd_abi
// }}}2
@@ -2974,13 +3018,23 @@ template <typename _Tp, typename _V, typename = void>
template <typename _Tp, typename _Up, typename _Abi>
struct rebind_simd<_Tp, simd<_Up, _Abi>,
- void_t<simd_abi::deduce_t<_Tp, simd_size_v<_Up, _Abi>,
_Abi>>>
- { using type = simd<_Tp, simd_abi::deduce_t<_Tp, simd_size_v<_Up, _Abi>,
_Abi>>; };
+ void_t<std::conditional_t<!__is_sve_abi<_Abi>(),
+ simd_abi::__no_sve_deduce_t<_Tp, simd_size_v<_Up, _Abi>, _Abi>,
+ simd_abi::deduce_t<_Tp, simd_size_v<_Up, _Abi>, _Abi>>>>
+ { using type = simd<_Tp, std::conditional_t<!__is_sve_abi<_Abi>(),
+ simd_abi::__no_sve_deduce_t<_Tp, simd_size_v<_Up, _Abi>,
_Abi>,
+ simd_abi::deduce_t<_Tp, simd_size_v<_Up, _Abi>, _Abi>>>;
+ };
template <typename _Tp, typename _Up, typename _Abi>
struct rebind_simd<_Tp, simd_mask<_Up, _Abi>,
- void_t<simd_abi::deduce_t<_Tp, simd_size_v<_Up, _Abi>,
_Abi>>>
- { using type = simd_mask<_Tp, simd_abi::deduce_t<_Tp, simd_size_v<_Up,
_Abi>, _Abi>>; };
+ void_t<std::conditional_t<!__is_sve_abi<_Abi>(),
+ simd_abi::__no_sve_deduce_t<_Tp, simd_size_v<_Up, _Abi>, _Abi>,
+ simd_abi::deduce_t<_Tp, simd_size_v<_Up, _Abi>, _Abi>>>>
+ { using type = simd_mask<_Tp, std::conditional_t<!__is_sve_abi<_Abi>(),
+ simd_abi::__no_sve_deduce_t<_Tp, simd_size_v<_Up, _Abi>,
_Abi>,
+ simd_abi::deduce_t<_Tp, simd_size_v<_Up, _Abi>, _Abi>>>;
+ };
template <typename _Tp, typename _V>
using rebind_simd_t = typename rebind_simd<_Tp, _V>::type;
@@ -3243,7 +3297,7 @@ template <typename _Tp, typename _Up, typename _Ap>
else if constexpr (_Tp::size() == 1)
return __x[0];
else if constexpr (sizeof(_Tp) == sizeof(__x)
- && !__is_fixed_size_abi_v<_Ap>)
+ && !__is_fixed_size_abi_v<_Ap> && !__is_sve_abi<_Ap>())
return {__private_init,
__vector_bitcast<typename _Tp::value_type, _Tp::size()>(
_Ap::_S_masked(__data(__x))._M_data)};
@@ -4004,18 +4058,29 @@ template <typename _V, typename _Ap,
split(const simd<typename _V::value_type, _Ap>& __x)
{
using _Tp = typename _V::value_type;
+
+ auto __gen_fallback = [&]() constexpr _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
+ return __generate_from_n_evaluations<_Parts, array<_V, _Parts>>(
+ [&](auto __i) constexpr _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
+ return _V([&](auto __j) constexpr
_GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA
+ { return __x[__i * _V::size() + __j]; });
+ });
+ };
+
if constexpr (_Parts == 1)
{
return {simd_cast<_V>(__x)};
}
else if (__x._M_is_constprop())
{
- return __generate_from_n_evaluations<_Parts, array<_V, _Parts>>(
- [&](auto __i) constexpr _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
- return _V([&](auto __j) constexpr
_GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA
- { return __x[__i * _V::size() + __j]; });
- });
+ return __gen_fallback();
}
+#if _GLIBCXX_SIMD_HAVE_SVE
+ else if constexpr(__is_sve_abi<_Ap>)
+ {
+ return __gen_fallback();
+ }
+#endif
else if constexpr (
__is_fixed_size_abi_v<_Ap>
&& (is_same_v<typename _V::abi_type, simd_abi::scalar>
@@ -4115,7 +4180,8 @@ template <size_t... _Sizes, typename _Tp, typename _Ap,
typename>
constexpr size_t _N0 = _SL::template _S_at<0>();
using _V = __deduced_simd<_Tp, _N0>;
- if (__x._M_is_constprop())
+ auto __gen_fallback = [&]() constexpr _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA
+ {
return __generate_from_n_evaluations<sizeof...(_Sizes), _Tuple>(
[&](auto __i) constexpr _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
using _Vi = __deduced_simd<_Tp, _SL::_S_at(__i)>;
@@ -4124,6 +4190,14 @@ template <size_t... _Sizes, typename _Tp, typename _Ap,
typename>
return __x[__offset + __j];
});
});
+ };
+
+ if (__x._M_is_constprop())
+ __gen_fallback();
+#if _GLIBCXX_SIMD_HAVE_SVE
+ else if constexpr (__have_sve)
+ __gen_fallback();
+#endif
else if constexpr (_Np == _N0)
{
static_assert(sizeof...(_Sizes) == 1);
@@ -4510,8 +4584,10 @@ template <template <int> class _A0, template <int>
class... _Rest>
// 1. The ABI tag is valid for _Tp
// 2. The storage overhead is no more than padding to fill the next
// power-of-2 number of bytes
- if constexpr (_A0<_Bytes>::template _S_is_valid_v<
- _Tp> && __fullsize / 2 < _Np)
+ if constexpr (_A0<_Bytes>::template _S_is_valid_v<_Tp>
+ && ((__is_sve_abi<_A0<_Bytes>>() && __have_sve && (_Np <=
__sve_vectorized_size_bytes/sizeof(_Tp)))
+ || (__fullsize / 2 < _Np))
+ )
return typename __decay_abi<_A0<_Bytes>>::type{};
else
{
@@ -4536,7 +4612,13 @@ template <template <int> class _A0, template <int>
class... _Rest>
// the following lists all native ABIs, which makes them accessible to
// simd_abi::deduce and select_best_vector_type_t (for fixed_size). Order
// matters: Whatever comes first has higher priority.
-using _AllNativeAbis = _AbiList<simd_abi::_VecBltnBtmsk, simd_abi::_VecBuiltin,
+using _AllNativeAbis = _AbiList<
+#if _GLIBCXX_SIMD_HAVE_SVE
+ simd_abi::_SveAbi,
+#endif
+ simd_abi::_VecBltnBtmsk, simd_abi::_VecBuiltin, __scalar_abi_wrapper>;
+
+using _NoSveAllNativeAbis = _AbiList<simd_abi::_VecBltnBtmsk,
simd_abi::_VecBuiltin,
__scalar_abi_wrapper>;
// valid _SimdTraits specialization {{{1
@@ -4551,18 +4633,35 @@ template <typename _Tp, size_t _Np>
_Tp, _Np, enable_if_t<_AllNativeAbis::template _S_has_valid_abi<_Tp, _Np>>>
{ using type = _AllNativeAbis::_FirstValidAbi<_Tp, _Np>; };
+template <typename _Tp, size_t _Np>
+ struct __no_sve_deduce_impl<
+ _Tp, _Np, enable_if_t<_NoSveAllNativeAbis::template _S_has_valid_abi<_Tp,
_Np>>>
+ { using type = _NoSveAllNativeAbis::_FirstValidAbi<_Tp, _Np>; };
+
// fall back to fixed_size only if scalar and native ABIs don't match
template <typename _Tp, size_t _Np, typename = void>
struct __deduce_fixed_size_fallback {};
+template <typename _Tp, size_t _Np, typename = void>
+ struct __no_sve_deduce_fixed_size_fallback {};
+
template <typename _Tp, size_t _Np>
struct __deduce_fixed_size_fallback<_Tp, _Np,
enable_if_t<simd_abi::fixed_size<_Np>::template _S_is_valid_v<_Tp>>>
{ using type = simd_abi::fixed_size<_Np>; };
+template <typename _Tp, size_t _Np>
+ struct __no_sve_deduce_fixed_size_fallback<_Tp, _Np,
+ enable_if_t<simd_abi::fixed_size<_Np>::template _S_is_valid_v<_Tp>>>
+ { using type = simd_abi::fixed_size<_Np>; };
+
template <typename _Tp, size_t _Np, typename>
struct __deduce_impl : public __deduce_fixed_size_fallback<_Tp, _Np> {};
+template <typename _Tp, size_t _Np, typename>
+ struct __no_sve_deduce_impl : public
__no_sve_deduce_fixed_size_fallback<_Tp, _Np> {};
+
+
//}}}1
/// @endcond
diff --git a/libstdc++-v3/include/experimental/bits/simd_builtin.h
b/libstdc++-v3/include/experimental/bits/simd_builtin.h
index 6ccc2fcec9c..bb5d4e3d1c5 100644
--- a/libstdc++-v3/include/experimental/bits/simd_builtin.h
+++ b/libstdc++-v3/include/experimental/bits/simd_builtin.h
@@ -1614,7 +1614,7 @@ template <typename _Abi, typename>
static_assert(_UW_size <= _TV_size);
using _UW = _SimdWrapper<_Up, _UW_size>;
using _UV = __vector_type_t<_Up, _UW_size>;
- using _UAbi = simd_abi::deduce_t<_Up, _UW_size>;
+ using _UAbi = simd_abi::__no_sve_deduce_t<_Up, _UW_size>;
if constexpr (_UW_size == _TV_size) // one convert+store
{
const _UW __converted = __convert<_UW>(__v);
@@ -1857,7 +1857,7 @@ template <typename _Abi, typename>
else if constexpr (is_same_v<__remove_cvref_t<_BinaryOperation>,
plus<>>)
{
- using _Ap = simd_abi::deduce_t<_Tp, __full_size>;
+ using _Ap = simd_abi::__no_sve_deduce_t<_Tp, __full_size>;
return _Ap::_SimdImpl::_S_reduce(
simd<_Tp, _Ap>(__private_init,
_Abi::_S_masked(__as_vector(__x))),
@@ -1866,7 +1866,7 @@ template <typename _Abi, typename>
else if constexpr (is_same_v<__remove_cvref_t<_BinaryOperation>,
multiplies<>>)
{
- using _Ap = simd_abi::deduce_t<_Tp, __full_size>;
+ using _Ap = simd_abi::__no_sve_deduce_t<_Tp, __full_size>;
using _TW = _SimdWrapper<_Tp, __full_size>;
_GLIBCXX_SIMD_USE_CONSTEXPR auto __implicit_mask_full
= _Abi::template _S_implicit_mask<_Tp>().__as_full_vector();
@@ -1882,7 +1882,7 @@ template <typename _Abi, typename>
}
else if constexpr (_Np & 1)
{
- using _Ap = simd_abi::deduce_t<_Tp, _Np - 1>;
+ using _Ap = simd_abi::__no_sve_deduce_t<_Tp, _Np - 1>;
return __binary_op(
simd<_Tp, simd_abi::scalar>(_Ap::_SimdImpl::_S_reduce(
simd<_Tp, _Ap>(
@@ -1936,7 +1936,7 @@ template <typename _Abi, typename>
{
static_assert(sizeof(__x) > __min_vector_size<_Tp>);
static_assert((_Np & (_Np - 1)) == 0); // _Np must be a power of 2
- using _Ap = simd_abi::deduce_t<_Tp, _Np / 2>;
+ using _Ap = simd_abi::__no_sve_deduce_t<_Tp, _Np / 2>;
using _V = simd<_Tp, _Ap>;
return _Ap::_SimdImpl::_S_reduce(
__binary_op(_V(__private_init, __extract<0, 2>(__as_vector(__x))),
@@ -2376,6 +2376,16 @@ template <typename _Abi, typename>
_GLIBCXX_SIMD_INTRINSIC static __fixed_size_storage_t<int, _Np>
_S_fpclassify(_SimdWrapper<_Tp, _Np> __x)
{
+ if constexpr(__have_sve)
+ {
+ __fixed_size_storage_t<int, _Np> __r{};
+ __execute_n_times<_Np>(
+ [&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
+ __r._M_set(__i, std::fpclassify(__x[__i]));
+ });
+ return __r;
+ }
+ else {
using _I = __int_for_sizeof_t<_Tp>;
const auto __xn
= __vector_bitcast<_I>(__to_intrin(_SuperImpl::_S_abs(__x)));
@@ -2453,6 +2463,7 @@ template <typename _Abi, typename>
})};
else
__assert_unreachable<_Tp>();
+ }
}
// _S_increment & _S_decrement{{{2
@@ -2785,11 +2796,23 @@ template <typename _Abi, typename>
return _R(_UAbi::_MaskImpl::_S_to_bits(__data(__x))._M_to_bits());
}
else
+ {
+ if constexpr(__is_sve_abi<_UAbi>())
+ {
+ simd_mask<_Tp> __r(false);
+ constexpr size_t __min_size = std::min(__r.size(),
__x.size());
+ __execute_n_times<__min_size>(
+ [&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
+ __r[__i] = __x[__i];
+ });
+ return __data(__r);
+ }
+ else
return _SuperImpl::template _S_to_maskvector<__int_for_sizeof_t<_Tp>,
_S_size<_Tp>>(
__data(__x));
}
-
+ }
// }}}
// _S_masked_load {{{2
template <typename _Tp, size_t _Np>
diff --git a/libstdc++-v3/include/experimental/bits/simd_converter.h
b/libstdc++-v3/include/experimental/bits/simd_converter.h
index 3160e251632..b233d2c70a5 100644
--- a/libstdc++-v3/include/experimental/bits/simd_converter.h
+++ b/libstdc++-v3/include/experimental/bits/simd_converter.h
@@ -28,6 +28,18 @@
#if __cplusplus >= 201703L
_GLIBCXX_SIMD_BEGIN_NAMESPACE
+
+template <typename _Arg, typename _Ret, typename _To, size_t _Np>
+_Ret __converter_fallback(_Arg __a)
+ {
+ _Ret __ret{};
+ __execute_n_times<_Np>(
+ [&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
+ __ret._M_set(__i, static_cast<_To>(__a[__i]));
+ });
+ return __ret;
+ }
+
// _SimdConverter scalar -> scalar {{{
template <typename _From, typename _To>
struct _SimdConverter<_From, simd_abi::scalar, _To, simd_abi::scalar,
@@ -56,14 +68,16 @@ template <typename _From, typename _To, typename _Abi>
};
// }}}
-// _SimdConverter "native 1" -> "native 2" {{{
+// _SimdConverter "native non-sve 1" -> "native non-sve 2" {{{
template <typename _From, typename _To, typename _AFrom, typename _ATo>
struct _SimdConverter<
_From, _AFrom, _To, _ATo,
enable_if_t<!disjunction_v<
__is_fixed_size_abi<_AFrom>, __is_fixed_size_abi<_ATo>,
is_same<_AFrom, simd_abi::scalar>, is_same<_ATo, simd_abi::scalar>,
- conjunction<is_same<_From, _To>, is_same<_AFrom, _ATo>>>>>
+ conjunction<is_same<_From, _To>, is_same<_AFrom, _ATo>>>
+ && !(__is_sve_abi<_AFrom>() || __is_sve_abi<_ATo>())
+ >>
{
using _Arg = typename _AFrom::template __traits<_From>::_SimdMember;
using _Ret = typename _ATo::template __traits<_To>::_SimdMember;
@@ -75,6 +89,26 @@ template <typename _From, typename _To, typename _AFrom,
typename _ATo>
{ return __vector_convert<_V>(__a, __more...); }
};
+// }}}
+// _SimdConverter "native 1" -> "native 2" {{{
+template <typename _From, typename _To, typename _AFrom, typename _ATo>
+ struct _SimdConverter<
+ _From, _AFrom, _To, _ATo,
+ enable_if_t<!disjunction_v<
+ __is_fixed_size_abi<_AFrom>, __is_fixed_size_abi<_ATo>,
+ is_same<_AFrom, simd_abi::scalar>, is_same<_ATo, simd_abi::scalar>,
+ conjunction<is_same<_From, _To>, is_same<_AFrom, _ATo>>>
+ && (__is_sve_abi<_AFrom>() || __is_sve_abi<_ATo>())
+ >>
+ {
+ using _Arg = typename _AFrom::template __traits<_From>::_SimdMember;
+ using _Ret = typename _ATo::template __traits<_To>::_SimdMember;
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr _Ret
+ operator()(_Arg __x) const noexcept
+ { return __converter_fallback<_Arg, _Ret, _To, simd_size_v<_To,
_ATo>>(__x); }
+ };
+
// }}}
// _SimdConverter scalar -> fixed_size<1> {{{1
template <typename _From, typename _To>
@@ -111,6 +145,10 @@ template <typename _From, typename _To, int _Np>
if constexpr (is_same_v<_From, _To>)
return __x;
+ // fallback to sequential when sve is available
+ else if constexpr (__have_sve)
+ return __converter_fallback<_Arg, _Ret, _To, _Np>(__x);
+
// special case (optimize) int signedness casts
else if constexpr (sizeof(_From) == sizeof(_To)
&& is_integral_v<_From> && is_integral_v<_To>)
@@ -275,11 +313,14 @@ template <typename _From, typename _Ap, typename _To, int
_Np>
"_SimdConverter to fixed_size only works for equal element counts");
using _Ret = __fixed_size_storage_t<_To, _Np>;
+ using _Arg = typename _SimdTraits<_From, _Ap>::_SimdMember;
_GLIBCXX_SIMD_INTRINSIC constexpr _Ret
- operator()(typename _SimdTraits<_From, _Ap>::_SimdMember __x) const
noexcept
+ operator()(_Arg __x) const noexcept
{
- if constexpr (_Ret::_S_tuple_size == 1)
+ if constexpr (__have_sve)
+ return __converter_fallback<_Arg, _Ret, _To, _Np>(__x);
+ else if constexpr (_Ret::_S_tuple_size == 1)
return {__vector_convert<typename _Ret::_FirstType::_BuiltinType>(__x)};
else
{
@@ -316,12 +357,14 @@ template <typename _From, int _Np, typename _To, typename
_Ap>
"_SimdConverter to fixed_size only works for equal element counts");
using _Arg = __fixed_size_storage_t<_From, _Np>;
+ using _Ret = typename _SimdTraits<_To, _Ap>::_SimdMember;
_GLIBCXX_SIMD_INTRINSIC constexpr
- typename _SimdTraits<_To, _Ap>::_SimdMember
- operator()(const _Arg& __x) const noexcept
+ _Ret operator()(const _Arg& __x) const noexcept
{
- if constexpr (_Arg::_S_tuple_size == 1)
+ if constexpr(__have_sve)
+ return __converter_fallback<_Arg, _Ret, _To, _Np>(__x);
+ else if constexpr (_Arg::_S_tuple_size == 1)
return __vector_convert<__vector_type_t<_To, _Np>>(__x.first);
else if constexpr (_Arg::_S_is_homogeneous)
return __call_with_n_evaluations<_Arg::_S_tuple_size>(
diff --git a/libstdc++-v3/include/experimental/bits/simd_detail.h
b/libstdc++-v3/include/experimental/bits/simd_detail.h
index 1fb77866bb2..52fdf7149bf 100644
--- a/libstdc++-v3/include/experimental/bits/simd_detail.h
+++ b/libstdc++-v3/include/experimental/bits/simd_detail.h
@@ -61,6 +61,11 @@
#else
#define _GLIBCXX_SIMD_HAVE_NEON_A64 0
#endif
+#if (__ARM_FEATURE_SVE_BITS > 0 && __ARM_FEATURE_SVE_VECTOR_OPERATORS==1)
+#define _GLIBCXX_SIMD_HAVE_SVE 1
+#else
+#define _GLIBCXX_SIMD_HAVE_SVE 0
+#endif
//}}}
// x86{{{
#ifdef __MMX__
@@ -267,7 +272,7 @@
#define _GLIBCXX_SIMD_IS_UNLIKELY(__x) __builtin_expect(__x, 0)
#define _GLIBCXX_SIMD_IS_LIKELY(__x) __builtin_expect(__x, 1)
-#if __STRICT_ANSI__ || defined __clang__
+#if _GLIBCXX_SIMD_HAVE_SVE || __STRICT_ANSI__ || defined __clang__
#define _GLIBCXX_SIMD_CONSTEXPR
#define _GLIBCXX_SIMD_USE_CONSTEXPR_API const
#else
diff --git a/libstdc++-v3/include/experimental/bits/simd_math.h
b/libstdc++-v3/include/experimental/bits/simd_math.h
index c91f05fceb3..0e62a7f1650 100644
--- a/libstdc++-v3/include/experimental/bits/simd_math.h
+++ b/libstdc++-v3/include/experimental/bits/simd_math.h
@@ -652,6 +652,18 @@ template <typename _Tp, typename _Abi, typename =
__detail::__odr_helper>
(*__exp)[0] = __tmp;
return __r;
}
+ else if constexpr (__is_sve_abi<_Abi>())
+ {
+ simd<_Tp, _Abi> __r;
+ __execute_n_times<simd_size_v<_Tp, _Abi>>(
+ [&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
+ int __tmp;
+ const auto __ri = std::frexp(__x[__i], &__tmp);
+ (*__exp)[__i] = __tmp;
+ __r[__i] = __ri;
+ });
+ return __r;
+ }
else if constexpr (__is_fixed_size_abi_v<_Abi>)
return {__private_init, _Abi::_SimdImpl::_S_frexp(__data(__x),
__data(*__exp))};
#if _GLIBCXX_SIMD_X86INTRIN
@@ -1135,7 +1147,7 @@ _GLIBCXX_SIMD_CVTING2(hypot)
_GLIBCXX_SIMD_USE_CONSTEXPR_API _V __inf(__infinity_v<_Tp>);
#ifndef __FAST_MATH__
- if constexpr (_V::size() > 1 && __have_neon && !__have_neon_a32)
+ if constexpr (_V::size() > 1 && (__is_neon_abi<_Abi>() &&
__have_neon && !__have_neon_a32))
{ // With ARMv7 NEON, we have no subnormals and must use slightly
// different strategy
const _V __hi_exp = __hi & __inf;
diff --git a/libstdc++-v3/include/experimental/bits/simd_sve.h
b/libstdc++-v3/include/experimental/bits/simd_sve.h
new file mode 100644
index 00000000000..123242a3a62
--- /dev/null
+++ b/libstdc++-v3/include/experimental/bits/simd_sve.h
@@ -0,0 +1,1863 @@
+// Simd SVE specific implementations -*- C++ -*-
+
+// Copyright The GNU Toolchain Authors.
+//
+// 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_SVE_H_
+#define _GLIBCXX_EXPERIMENTAL_SIMD_SVE_H_
+
+#if __cplusplus >= 201703L
+
+#if !_GLIBCXX_SIMD_HAVE_SVE
+#error "simd_sve.h may only be included when SVE on ARM is available"
+#endif
+
+_GLIBCXX_SIMD_BEGIN_NAMESPACE
+
+// Helper function mapping to sve supported types
+template <typename _Tp>
+ constexpr auto
+ __get_sve_value_type()
+ {
+ if constexpr (is_integral_v<_Tp>)
+ {
+ if constexpr (is_signed_v<_Tp>)
+ {
+ if constexpr (sizeof(_Tp) == 1)
+ return int8_t{};
+ else if constexpr (sizeof(_Tp) == 2)
+ return int16_t{};
+ else if constexpr (sizeof(_Tp) == 4)
+ return int32_t{};
+ else if constexpr (sizeof(_Tp) == 8)
+ return int64_t{};
+ else
+ return _Tp{};
+ }
+ else
+ {
+ if constexpr (sizeof(_Tp) == 1)
+ return uint8_t{};
+ else if constexpr (sizeof(_Tp) == 2)
+ return uint16_t{};
+ else if constexpr (sizeof(_Tp) == 4)
+ return uint32_t{};
+ else if constexpr (sizeof(_Tp) == 8)
+ return uint64_t{};
+ else
+ return _Tp{};
+ }
+ }
+ else
+ {
+ if constexpr (is_floating_point_v<_Tp>)
+ {
+ if constexpr (sizeof(_Tp) == 4)
+ return float32_t{};
+ else if constexpr (sizeof(_Tp) == 8)
+ return float64_t{};
+ else
+ return _Tp{};
+ }
+ }
+ }
+
+template <typename _Tp>
+ using __get_sve_value_type_t = decltype(__get_sve_value_type<_Tp>());
+
+typedef svbool_t __sve_bool_type
__attribute__((arm_sve_vector_bits(__ARM_FEATURE_SVE_BITS)));
+
+template <typename _Tp, size_t _Np>
+ struct __sve_vector_type
+ {};
+
+template <typename _Tp, size_t _Np>
+ using __sve_vector_type_t = typename __sve_vector_type<_Tp, _Np>::type;
+
+template <size_t _Np>
+ struct __sve_vector_type<int8_t, _Np>
+ {
+ typedef svint8_t __sve_vlst_type
__attribute__((arm_sve_vector_bits(__ARM_FEATURE_SVE_BITS)));
+
+ inline static __sve_vlst_type
+ __sve_broadcast(int8_t __dup)
+ { return svdup_s8(__dup); }
+
+ inline static __sve_bool_type
+ __sve_active_mask()
+ { return svwhilelt_b8(size_t(0), _Np); };
+
+ using type = __sve_vlst_type;
+ };
+
+template <size_t _Np>
+ struct __sve_vector_type<uint8_t, _Np>
+ {
+ typedef svuint8_t __sve_vlst_type
__attribute__((arm_sve_vector_bits(__ARM_FEATURE_SVE_BITS)));
+
+ inline static __sve_vlst_type
+ __sve_broadcast(uint8_t __dup)
+ { return svdup_u8(__dup); }
+
+ inline static __sve_bool_type
+ __sve_active_mask()
+ { return svwhilelt_b8(size_t(0), _Np); };
+
+ using type = __sve_vlst_type;
+ };
+
+template <size_t _Np>
+ struct __sve_vector_type<int16_t, _Np>
+ {
+ typedef svint16_t __sve_vlst_type
__attribute__((arm_sve_vector_bits(__ARM_FEATURE_SVE_BITS)));
+
+ inline static __sve_vlst_type
+ __sve_broadcast(int16_t __dup)
+ { return svdup_s16(__dup); }
+
+ inline static __sve_bool_type
+ __sve_active_mask()
+ { return svwhilelt_b16(size_t(0), _Np); };
+
+ using type = __sve_vlst_type;
+ };
+
+template <size_t _Np>
+ struct __sve_vector_type<uint16_t, _Np>
+ {
+ typedef svuint16_t __sve_vlst_type
__attribute__((arm_sve_vector_bits(__ARM_FEATURE_SVE_BITS)));
+
+ inline static __sve_vlst_type
+ __sve_broadcast(uint16_t __dup)
+ { return svdup_u16(__dup); }
+
+ inline static __sve_bool_type
+ __sve_active_mask()
+ { return svwhilelt_b16(size_t(0), _Np); };
+
+ using type = __sve_vlst_type;
+ };
+
+template <size_t _Np>
+ struct __sve_vector_type<int32_t, _Np>
+ {
+ typedef svint32_t __sve_vlst_type
__attribute__((arm_sve_vector_bits(__ARM_FEATURE_SVE_BITS)));
+
+ inline static __sve_vlst_type
+ __sve_broadcast(int32_t __dup)
+ { return svdup_s32(__dup); }
+
+ inline static __sve_bool_type
+ __sve_active_mask()
+ { return svwhilelt_b32(size_t(0), _Np); };
+
+ using type = __sve_vlst_type;
+ };
+
+template <size_t _Np>
+ struct __sve_vector_type<uint32_t, _Np>
+ {
+ typedef svuint32_t __sve_vlst_type
__attribute__((arm_sve_vector_bits(__ARM_FEATURE_SVE_BITS)));
+
+ inline static __sve_vlst_type
+ __sve_broadcast(uint32_t __dup)
+ { return svdup_u32(__dup); }
+
+ inline static __sve_bool_type
+ __sve_active_mask()
+ { return svwhilelt_b32(size_t(0), _Np); };
+
+ using type = __sve_vlst_type;
+ };
+
+template <size_t _Np>
+ struct __sve_vector_type<int64_t, _Np>
+ {
+ typedef svint64_t __sve_vlst_type
__attribute__((arm_sve_vector_bits(__ARM_FEATURE_SVE_BITS)));
+
+ inline static __sve_vlst_type
+ __sve_broadcast(int64_t __dup)
+ { return svdup_s64(__dup); }
+
+ inline static __sve_bool_type
+ __sve_active_mask()
+ { return svwhilelt_b64(size_t(0), _Np); };
+
+ using type = __sve_vlst_type;
+ };
+
+template <size_t _Np>
+ struct __sve_vector_type<uint64_t, _Np>
+ {
+ typedef svuint64_t __sve_vlst_type
__attribute__((arm_sve_vector_bits(__ARM_FEATURE_SVE_BITS)));
+
+ inline static __sve_vlst_type
+ __sve_broadcast(uint64_t __dup)
+ { return svdup_u64(__dup); }
+
+ inline static __sve_bool_type
+ __sve_active_mask()
+ { return svwhilelt_b64(size_t(0), _Np); };
+
+ using type = __sve_vlst_type;
+ };
+
+template <size_t _Np>
+ struct __sve_vector_type<float, _Np>
+ {
+ typedef svfloat32_t __sve_vlst_type
__attribute__((arm_sve_vector_bits(__ARM_FEATURE_SVE_BITS)));
+
+ inline static __sve_vlst_type
+ __sve_broadcast(float __dup)
+ { return svdup_f32(__dup); }
+
+ inline static __sve_bool_type
+ __sve_active_mask()
+ { return svwhilelt_b32(size_t(0), _Np); };
+
+ using type = __sve_vlst_type;
+ };
+
+template <size_t _Np>
+ struct __sve_vector_type<double, _Np>
+ {
+ typedef svfloat64_t __sve_vlst_type
__attribute__((arm_sve_vector_bits(__ARM_FEATURE_SVE_BITS)));
+
+ inline static __sve_vlst_type
+ __sve_broadcast(double __dup)
+ { return svdup_f64(__dup); }
+
+ inline static __sve_bool_type
+ __sve_active_mask()
+ { return svwhilelt_b64(size_t(0), _Np); };
+
+ using type = __sve_vlst_type;
+ };
+
+template <size_t _Np>
+ struct __sve_vector_type<char, _Np>
+ : __sve_vector_type<__get_sve_value_type_t<char>, _Np>
+ {};
+
+template <size_t _Np>
+ struct __sve_vector_type<char16_t, _Np>
+ : __sve_vector_type<__get_sve_value_type_t<char16_t>, _Np>
+ {};
+
+template <size_t _Np>
+ struct __sve_vector_type<wchar_t, _Np>
+ : __sve_vector_type<__get_sve_value_type_t<wchar_t>, _Np>
+ {};
+
+template <size_t _Np>
+ struct __sve_vector_type<char32_t, _Np>
+ : __sve_vector_type<__get_sve_value_type_t<char32_t>, _Np>
+ {};
+
+template <size_t _Np>
+ struct __sve_vector_type<long long int, _Np>
+ : __sve_vector_type<__get_sve_value_type_t<long long int>, _Np>
+ {};
+
+template <size_t _Np>
+ struct __sve_vector_type<long long unsigned int, _Np>
+ : __sve_vector_type<__get_sve_value_type_t<long long unsigned int>, _Np>
+ {};
+
+template <size_t _Size>
+ struct __sve_mask_type
+ {
+ static_assert((_Size & (_Size - 1)) != 0, "This trait may only be used for
non-power-of-2 "
+ "sizes. Power-of-2 sizes must be
specialized.");
+
+ using type = typename __sve_mask_type<std::__bit_ceil(_Size)>::type;
+ };
+
+template <size_t _Size>
+ using __sve_mask_type_t = typename __sve_mask_type<_Size>::type;
+
+template <>
+ struct __sve_mask_type<1>
+ {
+ using type = __sve_bool_type;
+
+ using __sve_mask_uint_type = uint8_t;
+
+ typedef svuint8_t __sve_mask_vector_type
+ __attribute__((arm_sve_vector_bits(__ARM_FEATURE_SVE_BITS)));
+
+ inline static auto
+ __sve_mask_active_count(type __active_mask, type __pred)
+ { return svcntp_b8(__active_mask, __pred); }
+
+ inline static type
+ __sve_mask_first_true()
+ { return svptrue_pat_b8(SV_VL1); }
+
+ inline static type
+ __sve_mask_next_true(type __active_mask, type __pred)
+ { return svpnext_b8(__active_mask, __pred); }
+
+ inline static bool
+ __sve_mask_get(type __active_mask, size_t __i)
+ { return __sve_mask_vector_type(svdup_u8_z(__active_mask, 1))[__i] != 0;}
+
+ inline static const __sve_mask_vector_type __index0123 = svindex_u8(0, 1);
+ };
+
+template <>
+ struct __sve_mask_type<2>
+ {
+ using type = __sve_bool_type;
+
+ using __sve_mask_uint_type = uint16_t;
+
+ typedef svuint16_t __sve_mask_vector_type
+ __attribute__((arm_sve_vector_bits(__ARM_FEATURE_SVE_BITS)));
+
+ inline static auto
+ __sve_mask_active_count(type __active_mask, type __pred)
+ { return svcntp_b16(__active_mask, __pred); }
+
+ inline static type
+ __sve_mask_first_true()
+ { return svptrue_pat_b16(SV_VL1); }
+
+ inline static type
+ __sve_mask_next_true(type __active_mask, type __pred)
+ { return svpnext_b16(__active_mask, __pred); }
+
+ inline static bool
+ __sve_mask_get(type __active_mask, size_t __i)
+ { return __sve_mask_vector_type(svdup_u16_z(__active_mask, 1))[__i] != 0;}
+
+ inline static const __sve_mask_vector_type __index0123 = svindex_u16(0, 1);
+ };
+
+template <>
+ struct __sve_mask_type<4>
+ {
+ using type = __sve_bool_type;
+
+ using __sve_mask_uint_type = uint32_t;
+
+ typedef svuint32_t __sve_mask_vector_type
+ __attribute__((arm_sve_vector_bits(__ARM_FEATURE_SVE_BITS)));
+
+ inline static auto
+ __sve_mask_active_count(type __active_mask, type __pred)
+ { return svcntp_b32(__active_mask, __pred); }
+
+ inline static type
+ __sve_mask_first_true()
+ { return svptrue_pat_b32(SV_VL1); }
+
+ inline static type
+ __sve_mask_next_true(type __active_mask, type __pred)
+ { return svpnext_b32(__active_mask, __pred); }
+
+ inline static bool
+ __sve_mask_get(type __active_mask, size_t __i)
+ { return __sve_mask_vector_type(svdup_u32_z(__active_mask, 1))[__i] != 0;}
+
+ inline static const __sve_mask_vector_type __index0123 = svindex_u32(0, 1);
+ };
+
+template <>
+ struct __sve_mask_type<8>
+ {
+ using type = __sve_bool_type;
+
+ using __sve_mask_uint_type = uint64_t;
+
+ typedef svuint64_t __sve_mask_vector_type
+ __attribute__((arm_sve_vector_bits(__ARM_FEATURE_SVE_BITS)));
+
+ inline static auto
+ __sve_mask_active_count(type __active_mask, type __pred)
+ { return svcntp_b64(__active_mask, __pred); }
+
+ inline static type
+ __sve_mask_first_true()
+ { return svptrue_pat_b64(SV_VL1); }
+
+ inline static type
+ __sve_mask_next_true(type __active_mask, type __pred)
+ { return svpnext_b64(__active_mask, __pred); }
+
+ inline static bool
+ __sve_mask_get(type __active_mask, size_t __i)
+ { return __sve_mask_vector_type(svdup_u64_z(__active_mask, 1))[__i] != 0;}
+
+ inline static const __sve_mask_vector_type __index0123 = svindex_u64(0, 1);
+ };
+
+template <typename _To, typename _From>
+ _GLIBCXX_SIMD_INTRINSIC constexpr auto
+ __sve_reinterpret_cast(_From __v)
+ {
+ if constexpr (std::is_same_v<_To, int32_t>)
+ return svreinterpret_s32(__v);
+ else if constexpr (std::is_same_v<_To, int64_t>)
+ return svreinterpret_s64(__v);
+ else if constexpr (std::is_same_v<_To, float32_t>)
+ return svreinterpret_f32(__v);
+ else if constexpr (std::is_same_v<_To, float64_t>)
+ return svreinterpret_f64(__v);
+ else
+ __assert_unreachable<_To>(); // add more cases if needed.
+ }
+
+template <typename _Tp, size_t _Width>
+ struct _SveSimdWrapper
+ {
+ static_assert(__is_vectorizable_v<_Tp>);
+
+ static_assert(_Width >= 2); // 1 doesn't make sense, use _Tp directly then
+
+ using _BuiltinType = __sve_vector_type_t<_Tp, _Width>;
+
+ using value_type = _Tp;
+
+ static inline constexpr size_t _S_full_size = sizeof(_BuiltinType) /
sizeof(value_type);
+
+ static inline constexpr int _S_size = _Width;
+
+ static inline constexpr bool _S_is_partial = _S_full_size != _S_size;
+
+ _BuiltinType _M_data;
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr _SveSimdWrapper<_Tp, _S_full_size>
+ __as_full_vector() const
+ { return _M_data; }
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr
+ _SveSimdWrapper(initializer_list<_Tp> __init)
+ : _M_data(__generate_from_n_evaluations<_Width, _BuiltinType>(
+ [&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
+ return __init.begin()[__i.value];
+ }))
+ {}
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr
+ _SveSimdWrapper() = default;
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr
+ _SveSimdWrapper(const _SveSimdWrapper&) = default;
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr
+ _SveSimdWrapper(_SveSimdWrapper&&) = default;
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr _SveSimdWrapper&
+ operator=(const _SveSimdWrapper&) = default;
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr _SveSimdWrapper&
+ operator=(_SveSimdWrapper&&) = default;
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr
+ _SveSimdWrapper(__sve_vector_type_t<_Tp, _Width> __x)
+ : _M_data(__x)
+ {}
+
+ template <typename... _As, typename =
enable_if_t<((is_same_v<simd_abi::scalar, _As> && ...)
+ && sizeof...(_As) <=
_Width)>>
+ _GLIBCXX_SIMD_INTRINSIC constexpr
+ operator _SimdTuple<_Tp, _As...>() const
+ {
+ return __generate_from_n_evaluations<sizeof...(_As), _SimdTuple<_Tp,
_As...>>(
+ [&](auto __i) constexpr _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
+ return _M_data[int(__i)];
+ });
+ }
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr
+ operator const _BuiltinType&() const
+ { return _M_data; }
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr
+ operator _BuiltinType&()
+ { return _M_data; }
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr _Tp
+ operator[](size_t __i) const
+ { return _M_data[__i]; }
+
+ template <size_t __i>
+ _GLIBCXX_SIMD_INTRINSIC constexpr _Tp
+ operator[](_SizeConstant<__i>) const
+ { return _M_data[__i]; }
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr void
+ _M_set(size_t __i, _Tp __x)
+ {
+ _M_data[__i] = __x;
+ }
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr bool
+ _M_is_constprop() const
+ { return false; }
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr bool
+ _M_is_constprop_none_of() const
+ { return false; }
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr bool
+ _M_is_constprop_all_of() const
+ { return false; }
+ };
+
+template <size_t _Bits, size_t _Width>
+ struct _SveMaskWrapper
+ {
+ using _BuiltinSveMaskType = __sve_mask_type<_Bits>;
+
+ using _BuiltinSveVectorType =
__sve_vector_type<__int_with_sizeof_t<_Bits>, _Width>;
+
+ using _BuiltinType = typename _BuiltinSveMaskType::type;
+
+ using value_type = bool;
+
+ static constexpr size_t _S_full_size = sizeof(_BuiltinType);
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr _SveMaskWrapper<_Bits, _S_full_size>
+ __as_full_vector() const
+ { return _M_data; }
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr
+ _SveMaskWrapper() = default;
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr
+ _SveMaskWrapper(_BuiltinType __k)
+ : _M_data(__k)
+ {};
+
+ _GLIBCXX_SIMD_INTRINSIC
+ operator const _BuiltinType&() const
+ { return _M_data; }
+
+ _GLIBCXX_SIMD_INTRINSIC
+ operator _BuiltinType&()
+ { return _M_data; }
+
+ _GLIBCXX_SIMD_INTRINSIC _BuiltinType
+ __intrin() const
+ { return _M_data; }
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr value_type
+ operator[](size_t __i) const
+ {
+ return _BuiltinSveMaskType::__sve_mask_get(_M_data, __i);
+ }
+
+ template <size_t __i>
+ _GLIBCXX_SIMD_INTRINSIC constexpr value_type
+ operator[](_SizeConstant<__i>) const
+ {
+ return _BuiltinSveMaskType::__sve_mask_get(_M_data, __i);
+ }
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr void
+ _M_set(size_t __i, value_type __x)
+ {
+ _BuiltinType __index
+ = svcmpeq(_BuiltinSveVectorType::__sve_active_mask(),
_BuiltinSveMaskType::__index0123,
+ typename _BuiltinSveMaskType::__sve_mask_uint_type(__i));
+
+ if (__x)
+ _M_data = svorr_z(_BuiltinSveVectorType::__sve_active_mask(), _M_data,
__index);
+ else
+ _M_data = svbic_z(_BuiltinSveVectorType::__sve_active_mask(), _M_data,
__index);
+ }
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr bool
+ _M_is_constprop() const
+ { return false; }
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr bool
+ _M_is_constprop_none_of() const
+ { return false; }
+
+ _GLIBCXX_SIMD_INTRINSIC constexpr bool
+ _M_is_constprop_all_of() const
+ { return false; }
+
+ _BuiltinType _M_data;
+ };
+
+struct _CommonImplSve;
+
+template <typename _Abi, typename = __detail::__odr_helper>
+ struct _SimdImplSve;
+
+template <typename _Abi, typename = __detail::__odr_helper>
+ struct _MaskImplSve;
+
+template <int _UsedBytes, int>
+ struct simd_abi::_SveAbi
+ {
+ template <typename _Tp>
+ static constexpr size_t _S_size = _UsedBytes / sizeof(_Tp);
+
+ struct _IsValidAbiTag
+ : __bool_constant<(_UsedBytes > 1)>
+ {};
+
+ template <typename _Tp>
+ struct _IsValidSizeFor
+ : __bool_constant<(_UsedBytes / sizeof(_Tp) > 1 && _UsedBytes %
sizeof(_Tp) == 0
+ && _UsedBytes <= __sve_vectorized_size_bytes)>
+ {};
+
+ template <typename _Tp>
+ struct _IsValid
+ : conjunction<_IsValidAbiTag, __bool_constant<__have_sve>,
+ __bool_constant<(__vectorized_sizeof<_Tp>() > sizeof(_Tp))>,
+ _IsValidSizeFor<_Tp>>
+ {};
+
+ template <typename _Tp>
+ static constexpr bool _S_is_valid_v = _IsValid<_Tp>::value;
+
+ using _CommonImpl = _CommonImplSve;
+
+ using _SimdImpl = _SimdImplSve<_SveAbi<_UsedBytes>>;
+
+ using _MaskImpl = _MaskImplSve<_SveAbi<_UsedBytes>>;
+
+ template <typename _Tp>
+ using _MaskMember = _SveMaskWrapper<sizeof(_Tp), _S_size<_Tp>>;
+
+ 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 = _SimdImplSve<_SveAbi<_UsedBytes>>;
+ using _MaskImpl = _MaskImplSve<_SveAbi<_UsedBytes>>;
+
+ using _SimdMember = _SveSimdWrapper<_Tp, _S_size<_Tp>>; // sve
vector type
+ using _MaskMember = _SveMaskWrapper<sizeof(_Tp), _S_size<_Tp>>; // sve
mask type
+
+ static constexpr size_t _S_simd_align = alignof(_SimdMember);
+ static constexpr size_t _S_mask_align = alignof(_MaskMember);
+
+ static constexpr size_t _S_full_size = _SimdMember::_S_full_size;
+ static constexpr bool _S_is_partial = _SimdMember::_S_is_partial;
+
+ struct _SimdBase
+ {
+ _GLIBCXX_SIMD_ALWAYS_INLINE explicit
+ operator __sve_vector_type_t<_Tp, _S_size<_Tp>>() const
+ { return __data(*static_cast<const simd<_Tp,
_SveAbi<_UsedBytes>>*>(this)); }
+ };
+
+ class _SimdCastType
+ {
+ using _Ap = __sve_vector_type_t<_Tp, _S_size<_Tp>>;
+
+ _SimdMember _M_data;
+
+ public:
+ _GLIBCXX_SIMD_ALWAYS_INLINE constexpr
+ _SimdCastType(_Ap __a)
+ : _M_data(__a)
+ {}
+
+ _GLIBCXX_SIMD_ALWAYS_INLINE constexpr
+ operator _SimdMember() const
+ { return _M_data; }
+ };
+
+ struct _MaskBase
+ {
+ _GLIBCXX_SIMD_ALWAYS_INLINE explicit
+ operator __sve_mask_type_t<sizeof(_Tp)>() const
+ {
+ return __data(*static_cast<const simd_mask<_Tp,
_SveAbi<_UsedBytes>>*>(this));
+ }
+ };
+
+ class _MaskCastType
+ {
+ using _Ap = __sve_mask_type_t<sizeof(_Tp)>;
+
+ _Ap _M_data;
+
+ public:
+ _GLIBCXX_SIMD_ALWAYS_INLINE constexpr
+ _MaskCastType(_Ap __a)
+ : _M_data(__a)
+ {}
+
+ _GLIBCXX_SIMD_ALWAYS_INLINE constexpr
+ operator _MaskMember() const
+ { return _M_data; }
+ };
+ };
+
+ template <typename _Tp>
+ static constexpr size_t _S_full_size = __traits<_Tp>::_S_full_size;
+
+ template <typename _Tp>
+ static constexpr bool _S_is_partial = __traits<_Tp>::_S_is_partial;
+ };
+
+template <typename _Tp, size_t _Np>
+ using __sve_mask = __sve_mask_type<sizeof(_Tp)>;
+
+struct _CommonImplSve
+{
+ // _S_converts_via_decomposition
+ // This lists all cases where a __vector_convert needs to fall back to
+ // conversion of individual scalars (i.e. decompose the input vector into
+ // scalars, convert, compose output vector). In those cases, _S_masked_load &
+ // _S_masked_store prefer to use the _S_bit_iteration implementation.
+ template <typename _From, typename _To, size_t _ToSize>
+ static inline constexpr bool __converts_via_decomposition_v =
sizeof(_From) != sizeof(_To);
+
+ template <typename _Tp, typename _Up, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr __sve_vector_type_t<_Tp, _Np>
+ _S_load(const _Up* __p, _SveMaskWrapper<sizeof(_Tp), _Np> __k)
+ {
+ using _STp = __get_sve_value_type_t<_Tp>;
+ using _SUp = __get_sve_value_type_t<_Up>;
+ using _V = __sve_vector_type_t<_Tp, _Np>;
+ const _SUp* __up = reinterpret_cast<const _SUp*>(__p);
+
+ if constexpr (std::is_same_v<_Tp, _Up>)
+ return _V(svld1(__k._M_data, __up));
+ if constexpr (std::is_integral_v<_Tp> && std::is_integral_v<_Up>
+ && (sizeof(_Tp) > sizeof(_Up)))
+ {
+ if constexpr (std::is_same_v<_SUp, int8_t>)
+ {
+ if constexpr (std::is_same_v<_STp, int16_t>)
+ return _V(svld1sb_s16(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, uint16_t>)
+ return _V(svld1sb_u16(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, int32_t>)
+ return _V(svld1sb_s32(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, uint32_t>)
+ return _V(svld1sb_u32(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, int64_t>)
+ return _V(svld1sb_s64(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, uint64_t>)
+ return _V(svld1sb_u64(__k._M_data, __up));
+ }
+ if constexpr (std::is_same_v<_SUp, uint8_t>)
+ {
+ if constexpr (std::is_same_v<_STp, int16_t>)
+ return _V(svld1ub_s16(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, uint16_t>)
+ return _V(svld1ub_u16(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, int32_t>)
+ return _V(svld1ub_s32(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, uint32_t>)
+ return _V(svld1ub_u32(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, int64_t>)
+ return _V(svld1ub_s64(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, uint64_t>)
+ return _V(svld1ub_u64(__k._M_data, __up));
+ }
+ if constexpr (std::is_same_v<_SUp, int16_t>)
+ {
+ if constexpr (std::is_same_v<_STp, int32_t>)
+ return _V(svld1sh_s32(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, uint32_t>)
+ return _V(svld1sh_u32(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, int64_t>)
+ return _V(svld1sh_s64(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, uint64_t>)
+ return _V(svld1sh_u64(__k._M_data, __up));
+ }
+ if constexpr (std::is_same_v<_SUp, uint16_t>)
+ {
+ if constexpr (std::is_same_v<_STp, int32_t>)
+ return _V(svld1uh_s32(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, uint32_t>)
+ return _V(svld1uh_u32(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, int64_t>)
+ return _V(svld1uh_s64(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, uint64_t>)
+ return _V(svld1uh_u64(__k._M_data, __up));
+ }
+ if constexpr (std::is_same_v<_SUp, int32_t>)
+ {
+ if constexpr (std::is_same_v<_STp, int64_t>)
+ return _V(svld1sw_s64(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, uint64_t>)
+ return _V(svld1sw_u64(__k._M_data, __up));
+ }
+ if constexpr (std::is_same_v<_SUp, uint32_t>)
+ {
+ if constexpr (std::is_same_v<_STp, int64_t>)
+ return _V(svld1uw_s64(__k._M_data, __up));
+ if constexpr (std::is_same_v<_STp, uint64_t>)
+ return _V(svld1uw_u64(__k._M_data, __up));
+ }
+ }
+ return __generate_from_n_evaluations<_Np, __sve_vector_type_t<_Tp, _Np>>(
+ [&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
+ return __k[__i] ? static_cast<_Tp>(__p[__i]) : _Tp{};
+ });
+ }
+
+ template <typename _Tp, typename _Up, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr void
+ _S_store(_Up* __p, _SveSimdWrapper<_Tp, _Np> __x,
_SveMaskWrapper<sizeof(_Tp), _Np> __k)
+ {
+ using _SUp = __get_sve_value_type_t<_Up>;
+ using _STp = __get_sve_value_type_t<_Tp>;
+
+ _SUp* __up = reinterpret_cast<_SUp*>(__p);
+
+ if constexpr (std::is_same_v<_Tp, _Up>)
+ return svst1(__k._M_data, __up, __x);
+ if constexpr (std::is_integral_v<_Tp> && std::is_integral_v<_Up>
+ && (sizeof(_Tp) > sizeof(_Up)))
+ {
+ if constexpr (std::is_same_v<_SUp, int8_t> && std::is_signed_v<_STp>)
+ return svst1b(__k._M_data, __up, __x);
+ if constexpr (std::is_same_v<_SUp, uint8_t> && std::is_unsigned_v<_STp>)
+ return svst1b(__k._M_data, __up, __x);
+ if constexpr (std::is_same_v<_SUp, int16_t> && std::is_signed_v<_STp>)
+ return svst1h(__k._M_data, __up, __x);
+ if constexpr (std::is_same_v<_SUp, uint16_t> && std::is_unsigned_v<_STp>)
+ return svst1h(__k._M_data, __up, __x);
+ if constexpr (std::is_same_v<_SUp, int32_t> && std::is_signed_v<_STp>)
+ return svst1w(__k._M_data, __up, __x);
+ if constexpr (std::is_same_v<_SUp, uint32_t> && std::is_unsigned_v<_STp>)
+ return svst1w(__k._M_data, __up, __x);
+ }
+
+ __execute_n_times<_Np>([&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
+ if (__k[__i])
+ __p[__i] = static_cast<_Up>(__x[__i]);
+ });
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr __sve_vector_type_t<_Tp, _Np>
+ _S_blend(_SveMaskWrapper<sizeof(_Tp), _Np> __k, _SveSimdWrapper<_Tp, _Np>
__at0,
+ _SveSimdWrapper<_Tp, _Np> __at1)
+ { return svsel(__k._M_data, __at1._M_data, __at0._M_data); }
+
+ template <size_t _Np, bool _Sanitized>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr void
+ _S_store_bool_array(_BitMask<_Np, _Sanitized> __x, bool* __mem)
+ {
+ __execute_n_times<_Np>([&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
+ __mem[__i] = __x[__i];
+ });
+ }
+};
+
+template <typename _Abi, typename>
+ struct _SimdImplSve
+ {
+ template <typename _Tp>
+ using _MaskMember = typename _Abi::template _MaskMember<_Tp>;
+
+ template <typename _Tp>
+ using _SimdMember = typename _Abi::template __traits<_Tp>::_SimdMember;
+
+ using _CommonImpl = typename _Abi::_CommonImpl;
+ using _SuperImpl = typename _Abi::_SimdImpl;
+ using _MaskImpl = typename _Abi::_MaskImpl;
+
+ template <typename _Tp>
+ static constexpr size_t _S_full_size = _Abi::template _S_full_size<_Tp>;
+
+ template <typename _Tp>
+ static constexpr size_t _S_size = _Abi::template _S_size<_Tp>;
+
+ template <typename _Tp>
+ using _TypeTag = _Tp*;
+
+ using abi_type = _Abi;
+
+ template <typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr auto
+ _S_broadcast(_Tp __x) noexcept
+ {
+ return __sve_vector_type<_Tp, __sve_vectorized_size_bytes / sizeof(_Tp)>
+ ::__sve_broadcast(__x);
+ }
+
+ template <typename _Fp, typename _Tp>
+ inline static constexpr _SimdMember<_Tp>
+ _S_generator(_Fp&& __gen, _TypeTag<_Tp>)
+ {
+ constexpr size_t _Np = _S_size<_Tp>;
+ _SveSimdWrapper<_Tp, _Np> __ret;
+ __execute_n_times<_S_size<_Tp>>(
+ [&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA { __ret._M_set(__i,
__gen(__i)); });
+ return __ret;
+ }
+
+ template <typename _Tp, typename _Up>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _SimdMember<_Tp>
+ _S_load(const _Up* __mem, _TypeTag<_Tp>) noexcept
+ {
+ constexpr size_t _Np = _S_size<_Tp>;
+ _SimdMember<_Tp> __ret = _CommonImpl::template _S_load<_Tp, _Up, _Np>(
+ __mem, _SveMaskWrapper<sizeof(_Tp), _Np>{
+ __sve_vector_type<_Tp,
_Np>::__sve_active_mask()});
+ return __ret;
+ }
+
+ template <typename _Tp, size_t _Np, typename _Up>
+ static constexpr inline _SveSimdWrapper<_Tp, _Np>
+ _S_masked_load(_SveSimdWrapper<_Tp, _Np> __merge, _MaskMember<_Tp> __k,
const _Up* __mem)
+ noexcept
+ {
+ __sve_vector_type_t<_Tp, _Np> __v
+ = _CommonImpl::template _S_load<_Tp, _Up, _Np>(__mem, __k);
+ __sve_vector_type_t<_Tp, _Np> __ret = svsel(__k._M_data, __v,
__merge._M_data);
+ return __ret;
+ }
+
+ template <typename _Tp, typename _Up>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr void
+ _S_store(_SimdMember<_Tp> __v, _Up* __mem, _TypeTag<_Tp>) noexcept
+ {
+ constexpr size_t _Np = _S_size<_Tp>;
+ _CommonImpl::template _S_store<_Tp, _Up, _Np>(
+ __mem, __v, __sve_vector_type<_Tp, _Np>::__sve_active_mask());
+ }
+
+ template <typename _Tp, typename _Up, size_t _Np>
+ static constexpr inline void
+ _S_masked_store(const _SveSimdWrapper<_Tp, _Np> __v, _Up* __mem,
+ const _SveMaskWrapper<sizeof(_Tp), _Np> __k) noexcept
+ { _CommonImpl::template _S_store<_Tp, _Up, _Np>(__mem, __v, __k); }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _MaskMember<_Tp>
+ _S_negate(_SveSimdWrapper<_Tp, _Np> __x) noexcept
+ {
+ return svcmpeq(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data,
+ __sve_vector_type<_Tp, _Np>::__sve_broadcast(_Tp{}));
+ }
+
+ template <typename _Tp, typename _BinaryOperation>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
+ _S_reduce(simd<_Tp, _Abi> __x, _BinaryOperation&& __binary_op)
+ {
+ auto __x_data = __x._M_data;
+ constexpr size_t _Np = simd_size_v<_Tp, _Abi>;
+ using __sve_vec_t = __sve_vector_type_t<_Tp, _Np>;
+ std::size_t __i = __x.size();
+ for (; (__i % 2) != 1; __i /= 2)
+ {
+ __x_data = __binary_op(simd<_Tp, _Abi>(
+ __private_init, _SveSimdWrapper<_Tp, _Np>(
+
__sve_vec_t(svuzp1(__x_data, __x_data)))),
+ simd<_Tp, _Abi>(
+ __private_init, _SveSimdWrapper<_Tp, _Np>(
+
__sve_vec_t(svuzp2(__x_data, __x_data))))
+ )._M_data;
+ }
+ _Tp __res = __x_data[0];
+ for (size_t __ri = 1; __ri != __i; __ri++)
+ __res = __binary_op(__x_data[__ri], __res);
+ return __res;
+ }
+
+ template <typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
+ _S_reduce(simd<_Tp, _Abi> __x, plus<>)
+ {
+ return svaddv(__sve_vector_type<_Tp, _S_size<_Tp>>::__sve_active_mask(),
__x._M_data);
+ }
+
+ template <typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
+ _S_reduce(simd<_Tp, _Abi> __x, bit_and<>)
+ {
+ return svandv(__sve_vector_type<_Tp, _S_size<_Tp>>::__sve_active_mask(),
__x._M_data);
+ }
+
+ template <typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
+ _S_reduce(simd<_Tp, _Abi> __x, bit_or<>)
+ {
+ return svorv(__sve_vector_type<_Tp, _S_size<_Tp>>::__sve_active_mask(),
__x._M_data);
+ }
+
+ template <typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
+ _S_reduce(simd<_Tp, _Abi> __x, bit_xor<>)
+ {
+ return sveorv(__sve_vector_type<_Tp, _S_size<_Tp>>::__sve_active_mask(),
__x._M_data);
+ }
+
+ template <typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
+ _S_reduce(simd<_Tp, _Abi> __x, __detail::_Maximum())
+ {
+ return svmaxv(__sve_vector_type<_Tp, _S_size<_Tp>>::__sve_active_mask(),
__x._M_data);
+ }
+
+ template <typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _Tp
+ _S_reduce(simd<_Tp, _Abi> __x, __detail::_Minimum())
+ {
+ return svminv(__sve_vector_type<_Tp, _S_size<_Tp>>::__sve_active_mask(),
__x._M_data);
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_NORMAL_MATH _GLIBCXX_SIMD_INTRINSIC static constexpr
+ __sve_vector_type_t<_Tp, _Np>
+ _S_min(_SveSimdWrapper<_Tp, _Np> __a, _SveSimdWrapper<_Tp, _Np> __b)
+ {
+ return svmin_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__a._M_data, __b._M_data);
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_NORMAL_MATH _GLIBCXX_SIMD_INTRINSIC static constexpr
+ __sve_vector_type_t<_Tp, _Np>
+ _S_max(_SveSimdWrapper<_Tp, _Np> __a, _SveSimdWrapper<_Tp, _Np> __b)
+ {
+ return svmax_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__a._M_data, __b._M_data);
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_NORMAL_MATH _GLIBCXX_SIMD_INTRINSIC static constexpr
+ pair<_SveSimdWrapper<_Tp, _Np>, _SveSimdWrapper<_Tp, _Np>>
+ _S_minmax(_SveSimdWrapper<_Tp, _Np> __a, _SveSimdWrapper<_Tp, _Np> __b)
+ {
+ return {
+ svmin_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__a._M_data, __b._M_data),
+ svmax_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__a._M_data, __b._M_data)
+ };
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr __sve_vector_type_t<_Tp, _Np>
+ _S_complement(_SveSimdWrapper<_Tp, _Np> __x) noexcept
+ {
+ if constexpr (is_floating_point_v<_Tp>)
+ {
+ using _Ip = __get_sve_value_type_t<__int_for_sizeof_t<_Tp>>;
+ return __sve_reinterpret_cast<_Tp>(
+ svnot_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
+ __sve_reinterpret_cast<_Ip>(__x)));
+ }
+ else
+ return svnot_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data);
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _SveSimdWrapper<_Tp, _Np>
+ _S_unary_minus(_SveSimdWrapper<_Tp, _Np> __x) noexcept
+ {
+ return svmul_x(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data,
+ static_cast<_Tp>(-1));
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr __sve_vector_type_t<_Tp, _Np>
+ _S_plus(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np> __y)
+ { return __x._M_data + __y._M_data; }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr __sve_vector_type_t<_Tp, _Np>
+ _S_minus(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np> __y)
+ { return __x._M_data - __y._M_data; }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr __sve_vector_type_t<_Tp, _Np>
+ _S_multiplies(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np>
__y)
+ { return __x._M_data * __y._M_data; }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr __sve_vector_type_t<_Tp, _Np>
+ _S_divides(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np> __y)
+ {
+ __sve_vector_type_t<_Tp, _Np> __y_padded =
svsel(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
+ __y._M_data, __sve_vector_type<_Tp,
_Np>::__sve_broadcast(1));
+ return __x._M_data / __y_padded;
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr __sve_vector_type_t<_Tp, _Np>
+ _S_modulus(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np> __y)
+ {
+ __sve_vector_type_t<_Tp, _Np> __y_padded =
svsel(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
+ __y._M_data, __sve_vector_type<_Tp,
_Np>::__sve_broadcast(1));
+ return __x._M_data % __y_padded;
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr __sve_vector_type_t<_Tp, _Np>
+ _S_bit_and(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np> __y)
+ {
+ if constexpr (is_floating_point_v<_Tp>)
+ {
+ using _Ip = __get_sve_value_type_t<__int_for_sizeof_t<_Tp>>;
+ return __sve_reinterpret_cast<_Tp>(
+ svand_x(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
+ __sve_reinterpret_cast<_Ip>(__x),
__sve_reinterpret_cast<_Ip>(__y)));
+ }
+ else
+ return svand_x(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
+ __x._M_data, __y._M_data);
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr __sve_vector_type_t<_Tp, _Np>
+ _S_bit_or(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np> __y)
+ {
+ if constexpr (is_floating_point_v<_Tp>)
+ {
+ using _Ip = __get_sve_value_type_t<__int_for_sizeof_t<_Tp>>;
+ return __sve_reinterpret_cast<_Tp>(
+ svorr_x(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
+ __sve_reinterpret_cast<_Ip>(__x),
__sve_reinterpret_cast<_Ip>(__y)));
+ }
+ else
+ return svorr_x(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
+ __x._M_data, __y._M_data);
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr __sve_vector_type_t<_Tp, _Np>
+ _S_bit_xor(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np> __y)
+ {
+ if constexpr (is_floating_point_v<_Tp>)
+ {
+ using _Ip = __get_sve_value_type_t<__int_for_sizeof_t<_Tp>>;
+ return __sve_reinterpret_cast<_Tp>(
+ sveor_x(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
+ __sve_reinterpret_cast<_Ip>(__x),
__sve_reinterpret_cast<_Ip>(__y)));
+ }
+ else
+ return sveor_x(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
+ __x._M_data, __y._M_data);
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static __sve_vector_type_t<_Tp, _Np>
+ _S_bit_shift_left(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp,
_Np> __y)
+ { return __x._M_data << __y._M_data; }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static __sve_vector_type_t<_Tp, _Np>
+ _S_bit_shift_right(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp,
_Np> __y)
+ { return __x._M_data >> __y._M_data; }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr __sve_vector_type_t<_Tp, _Np>
+ _S_bit_shift_left(_SveSimdWrapper<_Tp, _Np> __x, int __y)
+ { return __x._M_data << __y; }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr __sve_vector_type_t<_Tp, _Np>
+ _S_bit_shift_right(_SveSimdWrapper<_Tp, _Np> __x, int __y)
+ { return __x._M_data >> __y; }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr void
+ _S_increment(_SveSimdWrapper<_Tp, _Np>& __x)
+ { __x = __x._M_data + 1; }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr void
+ _S_decrement(_SveSimdWrapper<_Tp, _Np>& __x)
+ { __x = __x._M_data - 1; }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _MaskMember<_Tp>
+ _S_equal_to(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np> __y)
+ {
+ return svcmpeq(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data, __y._M_data);
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _MaskMember<_Tp>
+ _S_not_equal_to(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np>
__y)
+ {
+ return svcmpne(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data, __y._M_data);
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _MaskMember<_Tp>
+ _S_less(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np> __y)
+ {
+ return svcmplt(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data, __y._M_data);
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _MaskMember<_Tp>
+ _S_less_equal(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np>
__y)
+ {
+ return svcmple(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data, __y._M_data);
+ }
+
+ // simd.math
+#define _GLIBCXX_SIMD_MATH_FALLBACK(__name)
\
+ template <typename _Tp, size_t _Np, typename... _More>
\
+ static _SveSimdWrapper<_Tp, _Np> _S_##__name(const _SveSimdWrapper<_Tp,
_Np>& __x, \
+ const _More&... __more)
\
+ {
\
+ _SveSimdWrapper<_Tp, _Np> __r;
\
+ __execute_n_times<_Np>([&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA
{ \
+ __r._M_set(__i, __name(__x[__i], __more[__i]...));
\
+ });
\
+ return __r;
\
+ }
+
+#define _GLIBCXX_SIMD_MATH_FALLBACK_FIXEDRET(_RetTp, __name)
\
+ template <typename _Tp, typename... _More>
\
+ static auto _S_##__name(const _Tp& __x, const _More&... __more)
\
+ {
\
+ return __fixed_size_storage_t<_RetTp, _Tp::_S_size>::_S_generate(
\
+ [&](auto __meta) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
\
+ return __meta._S_generator(
\
+ [&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
\
+ return __name(__x[__meta._S_offset + __i],
\
+ __more[__meta._S_offset + __i]...);
\
+ }, static_cast<_RetTp*>(nullptr));
\
+ });
\
+ }
+
+ _GLIBCXX_SIMD_MATH_FALLBACK(acos)
+ _GLIBCXX_SIMD_MATH_FALLBACK(asin)
+ _GLIBCXX_SIMD_MATH_FALLBACK(atan)
+ _GLIBCXX_SIMD_MATH_FALLBACK(atan2)
+ _GLIBCXX_SIMD_MATH_FALLBACK(cos)
+ _GLIBCXX_SIMD_MATH_FALLBACK(sin)
+ _GLIBCXX_SIMD_MATH_FALLBACK(tan)
+ _GLIBCXX_SIMD_MATH_FALLBACK(acosh)
+ _GLIBCXX_SIMD_MATH_FALLBACK(asinh)
+ _GLIBCXX_SIMD_MATH_FALLBACK(atanh)
+ _GLIBCXX_SIMD_MATH_FALLBACK(cosh)
+ _GLIBCXX_SIMD_MATH_FALLBACK(sinh)
+ _GLIBCXX_SIMD_MATH_FALLBACK(tanh)
+ _GLIBCXX_SIMD_MATH_FALLBACK(exp)
+ _GLIBCXX_SIMD_MATH_FALLBACK(exp2)
+ _GLIBCXX_SIMD_MATH_FALLBACK(expm1)
+ _GLIBCXX_SIMD_MATH_FALLBACK_FIXEDRET(int, ilogb)
+ _GLIBCXX_SIMD_MATH_FALLBACK(log)
+ _GLIBCXX_SIMD_MATH_FALLBACK(log10)
+ _GLIBCXX_SIMD_MATH_FALLBACK(log1p)
+ _GLIBCXX_SIMD_MATH_FALLBACK(log2)
+ _GLIBCXX_SIMD_MATH_FALLBACK(logb)
+
+ // modf implemented in simd_math.h
+ _GLIBCXX_SIMD_MATH_FALLBACK(scalbn)
+ _GLIBCXX_SIMD_MATH_FALLBACK(scalbln)
+ _GLIBCXX_SIMD_MATH_FALLBACK(cbrt)
+ _GLIBCXX_SIMD_MATH_FALLBACK(pow)
+ _GLIBCXX_SIMD_MATH_FALLBACK(erf)
+ _GLIBCXX_SIMD_MATH_FALLBACK(erfc)
+ _GLIBCXX_SIMD_MATH_FALLBACK(lgamma)
+ _GLIBCXX_SIMD_MATH_FALLBACK(tgamma)
+
+ _GLIBCXX_SIMD_MATH_FALLBACK_FIXEDRET(long, lrint)
+ _GLIBCXX_SIMD_MATH_FALLBACK_FIXEDRET(long long, llrint)
+
+ _GLIBCXX_SIMD_MATH_FALLBACK_FIXEDRET(long, lround)
+ _GLIBCXX_SIMD_MATH_FALLBACK_FIXEDRET(long long, llround)
+
+ _GLIBCXX_SIMD_MATH_FALLBACK(fmod)
+ _GLIBCXX_SIMD_MATH_FALLBACK(remainder)
+
+ template <typename _Tp, size_t _Np>
+ static _SveSimdWrapper<_Tp, _Np>
+ _S_remquo(const _SveSimdWrapper<_Tp, _Np> __x, const
_SveSimdWrapper<_Tp, _Np> __y,
+ __fixed_size_storage_t<int, _Np>* __z)
+ {
+ _SveSimdWrapper<_Tp, _Np> __r{};
+ __execute_n_times<_Np>([&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA
{
+ int __tmp;
+ __r._M_set(__i, remquo(__x[__i], __y[__i], &__tmp));
+ __z->_M_set(__i, __tmp);
+ });
+ return __r;
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static __fixed_size_storage_t<int, _Np>
+ _S_fpclassify(_SveSimdWrapper<_Tp, _Np> __x)
+ {
+ __fixed_size_storage_t<int, _Np> __r{};
+ __execute_n_times<_Np>([&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA
{
+ __r._M_set(__i, std::fpclassify(__x[__i]));
+ });
+ return __r;
+ }
+
+ // copysign in simd_math.h
+ _GLIBCXX_SIMD_MATH_FALLBACK(nextafter)
+ _GLIBCXX_SIMD_MATH_FALLBACK(fdim)
+
+#undef _GLIBCXX_SIMD_MATH_FALLBACK
+#undef _GLIBCXX_SIMD_MATH_FALLBACK_FIXEDRET
+
+ template <typename _Tp, size_t _Np, typename _Op>
+ static constexpr _MaskMember<_Tp>
+ __fp_cmp(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np> __y,
_Op __op)
+ {
+ using _Ip = __get_sve_value_type_t<__int_for_sizeof_t<_Tp>>;
+ using _VI = __sve_vector_type_t<_Ip, _Np>;
+ using _WI = _SveSimdWrapper<_Ip, _Np>;
+ const _WI __fmv = __sve_vector_type<_Ip,
_Np>::__sve_broadcast(__finite_max_v<_Ip>);
+ const _WI __zerov = __sve_vector_type<_Ip, _Np>::__sve_broadcast(0);
+ const _WI __xn = _VI(__sve_reinterpret_cast<_Ip>(__x));
+ const _WI __yn = _VI(__sve_reinterpret_cast<_Ip>(__y));
+
+ const _WI __xp
+ = svsel(_S_less(__xn, __zerov), _S_unary_minus(_WI(_S_bit_and(__xn,
__fmv))), __xn);
+ const _WI __yp
+ = svsel(_S_less(__yn, __zerov), _S_unary_minus(_WI(_S_bit_and(__yn,
__fmv))), __yn);
+ return svbic_z(__sve_vector_type<_Ip, _Np>::__sve_active_mask(),
__op(__xp, __yp)._M_data,
+ _SuperImpl::_S_isunordered(__x, __y)._M_data);
+ }
+
+ template <typename _Tp, size_t _Np>
+ static constexpr _MaskMember<_Tp>
+ _S_isgreater(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np>
__y) noexcept
+ { return __fp_cmp(__x, __y, [](auto __xp, auto __yp) { return
_S_less(__yp, __xp); }); }
+
+ template <typename _Tp, size_t _Np>
+ static constexpr _MaskMember<_Tp>
+ _S_isgreaterequal(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp,
_Np> __y) noexcept
+ { return __fp_cmp(__x, __y, [](auto __xp, auto __yp) { return
_S_less_equal(__yp, __xp); }); }
+
+ template <typename _Tp, size_t _Np>
+ static constexpr _MaskMember<_Tp>
+ _S_isless(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np> __y)
noexcept
+ { return __fp_cmp(__x, __y, [](auto __xp, auto __yp) { return
_S_less(__xp, __yp); }); }
+
+ template <typename _Tp, size_t _Np>
+ static constexpr _MaskMember<_Tp>
+ _S_islessequal(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np>
__y) noexcept
+ { return __fp_cmp(__x, __y, [](auto __xp, auto __yp) { return
_S_less_equal(__xp, __yp); }); }
+
+ template <typename _Tp, size_t _Np>
+ static constexpr _MaskMember<_Tp>
+ _S_islessgreater(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp,
_Np> __y) noexcept
+ {
+ return svbic_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
+ _SuperImpl::_S_not_equal_to(__x, __y)._M_data,
+ _SuperImpl::_S_isunordered(__x, __y)._M_data);
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _SveSimdWrapper<_Tp, _Np>
+ _S_abs(_SveSimdWrapper<_Tp, _Np> __x) noexcept
+ { return svabs_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data); }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _SveSimdWrapper<_Tp, _Np>
+ _S_fabs(_SveSimdWrapper<_Tp, _Np> __x) noexcept
+ { return svabs_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data); }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _SveSimdWrapper<_Tp, _Np>
+ _S_sqrt(_SveSimdWrapper<_Tp, _Np> __x) noexcept
+ { return svsqrt_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data); }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _SveSimdWrapper<_Tp, _Np>
+ _S_ldexp(_SveSimdWrapper<_Tp, _Np> __x, __fixed_size_storage_t<int, _Np>
__y) noexcept
+ {
+ auto __sve_register = __y.first;
+ if constexpr (std::is_same_v<_Tp, float>)
+ return svscale_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data,
+ __sve_register._M_data);
+ else
+ {
+ __sve_vector_type_t<int64_t, _Np> __sve_d_register =
svunpklo(__sve_register);
+ return svscale_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data,
+ __sve_d_register);
+ }
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _SveSimdWrapper<_Tp, _Np>
+ _S_fma(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np> __y,
+ _SveSimdWrapper<_Tp, _Np> __z)
+ {
+ return svmad_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data, __y._M_data,
+ __z._M_data);
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _SveSimdWrapper<_Tp, _Np>
+ _S_fmax(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np> __y)
+ {
+ return svmaxnm_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data, __y._M_data);
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _SveSimdWrapper<_Tp, _Np>
+ _S_fmin(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np> __y)
+ {
+ return svminnm_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data, __y._M_data);
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _MaskMember<_Tp>
+ _S_isfinite([[maybe_unused]] _SveSimdWrapper<_Tp, _Np> __x)
+ {
+#if __FINITE_MATH_ONLY__
+ return __sve_vector_type_t<_Tp, _Np>::__sve_all_true_mask();
+#else
+ // if all exponent bits are set, __x is either inf or NaN
+
+ using _Ip = __get_sve_value_type_t<__int_for_sizeof_t<_Tp>>;
+ const __sve_vector_type_t<_Ip, _Np> __absn =
__sve_reinterpret_cast<_Ip>(_S_abs(__x));
+ const __sve_vector_type_t<_Ip, _Np> __maxn
+ = __sve_reinterpret_cast<_Ip>(
+ __sve_vector_type<_Tp,
_Np>::__sve_broadcast(__finite_max_v<_Tp>));
+
+ return _S_less_equal(_SveSimdWrapper<_Ip, _Np>{__absn},
_SveSimdWrapper<_Ip, _Np>{__maxn});
+#endif
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _MaskMember<_Tp>
+ _S_isinf([[maybe_unused]] _SveSimdWrapper<_Tp, _Np> __x)
+ {
+#if __FINITE_MATH_ONLY__
+ return {}; // false
+#else
+ return _S_equal_to<_Tp, _Np>(_S_abs(__x),
_S_broadcast(__infinity_v<_Tp>));
+#endif
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _MaskMember<_Tp>
+ _S_isnan([[maybe_unused]] _SveSimdWrapper<_Tp, _Np> __x)
+ {
+#if __FINITE_MATH_ONLY__
+ return {}; // false
+#else
+ return svcmpuo(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data, __x._M_data);
+#endif
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _MaskMember<_Tp>
+ _S_isnormal(_SveSimdWrapper<_Tp, _Np> __x)
+ {
+ using _Ip = __get_sve_value_type_t<__int_for_sizeof_t<_Tp>>;
+ using _V = __sve_vector_type_t<_Ip, _Np>;
+ using _VW = _SveSimdWrapper<_Ip, _Np>;
+
+ const _V __absn = __sve_reinterpret_cast<_Ip>(_S_abs(__x));
+ const _V __minn = __sve_reinterpret_cast<_Ip>(
+ __sve_vector_type<_Tp,
_Np>::__sve_broadcast(__norm_min_v<_Tp>));
+#if __FINITE_MATH_ONLY__
+ return _S_greater_equal(_VW{__absn}, _VW{__minn});
+#else
+ const _V __maxn = __sve_reinterpret_cast<_Ip>(
+ __sve_vector_type<_Tp,
_Np>::__sve_broadcast(__finite_max_v<_Tp>));
+ return _MaskImpl::_S_bit_and(_S_less_equal(_VW{__minn}, _VW{__absn}),
+ _S_less_equal(_VW{__absn}, _VW{__maxn}));
+#endif
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _MaskMember<_Tp>
+ _S_signbit(_SveSimdWrapper<_Tp, _Np> __x)
+ {
+ using _Ip = __get_sve_value_type_t<__int_for_sizeof_t<_Tp>>;
+ using _V = __sve_vector_type_t<_Ip, _Np>;
+ using _VW = _SveSimdWrapper<_Ip, _Np>;
+
+ const _V __xn = __sve_reinterpret_cast<_Ip>(__x);
+ const _V __zeron = __sve_vector_type<_Ip, _Np>::__sve_broadcast(0);
+ return _S_less(_VW{__xn}, _VW{__zeron});
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _MaskMember<_Tp>
+ _S_isunordered(_SveSimdWrapper<_Tp, _Np> __x, _SveSimdWrapper<_Tp, _Np>
__y)
+ {
+ return svcmpuo(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data, __y._M_data);
+ }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _SveSimdWrapper<_Tp, _Np>
+ _S_nearbyint(_SveSimdWrapper<_Tp, _Np> __x) noexcept
+ { return svrinti_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data); }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _SveSimdWrapper<_Tp, _Np>
+ _S_rint(_SveSimdWrapper<_Tp, _Np> __x) noexcept
+ { return _SuperImpl::_S_nearbyint(__x); }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _SveSimdWrapper<_Tp, _Np>
+ _S_trunc(_SveSimdWrapper<_Tp, _Np> __x) noexcept
+ { return svrintz_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data); }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _SveSimdWrapper<_Tp, _Np>
+ _S_round(_SveSimdWrapper<_Tp, _Np> __x) noexcept
+ { return svrinta_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data); }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _SveSimdWrapper<_Tp, _Np>
+ _S_floor(_SveSimdWrapper<_Tp, _Np> __x) noexcept
+ { return svrintm_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data); }
+
+ template <typename _Tp, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static _SveSimdWrapper<_Tp, _Np>
+ _S_ceil(_SveSimdWrapper<_Tp, _Np> __x) noexcept
+ { return svrintp_z(__sve_vector_type<_Tp, _Np>::__sve_active_mask(),
__x._M_data); }
+
+ template <typename _Tp, size_t _Bits, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr void
+ _S_masked_assign(_SveMaskWrapper<_Bits, _Np> __k, _SveSimdWrapper<_Tp,
_Np>& __lhs,
+ __type_identity_t<_SveSimdWrapper<_Tp, _Np>> __rhs)
+ { __lhs = _CommonImpl::_S_blend(__k, __lhs, __rhs); }
+
+ template <typename _Tp, size_t _Bits, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr void
+ _S_masked_assign(_SveMaskWrapper<_Bits, _Np> __k, _SveSimdWrapper<_Tp,
_Np>& __lhs,
+ __type_identity_t<_Tp> __rhs)
+ { __lhs = _CommonImpl::_S_blend(__k, __lhs, __data(simd<_Tp,
_Abi>(__rhs))); }
+
+ template <typename _Op, typename _Tp, size_t _Bits, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr void
+ _S_masked_cassign(const _SveMaskWrapper<_Bits, _Np> __k,
_SveSimdWrapper<_Tp, _Np>& __lhs,
+ const __type_identity_t<_SveSimdWrapper<_Tp, _Np>>
__rhs, _Op __op)
+ {
+ __lhs = _CommonImpl::_S_blend(__k, __lhs,
+ _SveSimdWrapper<_Tp,
_Np>(__op(_SuperImpl{}, __lhs, __rhs)));
+ }
+
+ template <typename _Op, typename _Tp, size_t _Bits, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr void
+ _S_masked_cassign(const _SveMaskWrapper<_Bits, _Np> __k,
_SveSimdWrapper<_Tp, _Np>& __lhs,
+ const __type_identity_t<_Tp> __rhs, _Op __op)
+ { _S_masked_cassign(__k, __lhs, _S_broadcast(__rhs), __op); }
+
+ template <typename _Tp, size_t _Np, typename _Up>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr void
+ _S_set(_SveSimdWrapper<_Tp, _Np>& __v, int __i, _Up&& __x) noexcept
+ { __v._M_set(__i, static_cast<_Up&&>(__x)); }
+
+ template <template <typename> class _Op, typename _Tp, size_t _Bits,
size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _SveSimdWrapper<_Tp, _Np>
+ _S_masked_unary(const _SveMaskWrapper<_Bits, _Np> __k, const
_SveSimdWrapper<_Tp, _Np> __v)
+ {
+ auto __vv = simd<_Tp, _Abi>{__private_init, __v};
+ _Op<decltype(__vv)> __op;
+ return _CommonImpl::_S_blend(__k, __v, __data(__op(__vv)));
+ }
+ };
+
+template <typename _Abi, typename>
+ struct _MaskImplSve
+ {
+ template <typename _Tp>
+ using _MaskMember = typename _Abi::template _MaskMember<_Tp>;
+
+ template <typename _Tp>
+ using _TypeTag = _Tp*;
+
+ template <typename _Tp>
+ static constexpr size_t _S_size = simd_size_v<_Tp, _Abi>;
+
+ template <typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _MaskMember<_Tp>
+ _S_broadcast(bool __x)
+ {
+ constexpr size_t _Np = simd_size_v<_Tp, _Abi>;
+ __sve_bool_type __tr = __sve_vector_type<_Tp, _Np>::__sve_active_mask();
+ __sve_bool_type __fl = svpfalse_b();;
+ return __x ? __tr : __fl;
+ }
+
+ template <typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _MaskMember<_Tp>
+ _S_load(const bool* __mem)
+ {
+ constexpr size_t _Np = simd_size_v<_Tp, _Abi>;
+ const uint8_t* __p = reinterpret_cast<const uint8_t*>(__mem);
+ __sve_bool_type __u8_active_mask = __sve_vector_type<uint8_t,
_Np>::__sve_active_mask();
+ __sve_vector_type_t<uint8_t, _Np> __u8_vec_mask_load =
svld1(__u8_active_mask, __p);
+ __sve_bool_type __u8_mask = svcmpne(__u8_active_mask, __u8_vec_mask_load, 0);
+
+ __sve_bool_type __tp_mask = __u8_mask;
+ for (size_t __up_size = 1; __up_size != sizeof(_Tp); __up_size *= 2)
+ {
+ __tp_mask = svunpklo(__tp_mask);
+ }
+
+ _SveMaskWrapper<sizeof(_Tp), simd_size_v<_Tp, _Abi>> __r{__tp_mask};
+ return __r;
+ }
+
+ template <size_t _Bits, size_t _Np>
+ static inline _SveMaskWrapper<_Bits, _Np>
+ _S_masked_load(_SveMaskWrapper<_Bits, _Np> __merge,
_SveMaskWrapper<_Bits, _Np> __mask,
+ const bool* __mem) noexcept
+ {
+ _SveMaskWrapper<_Bits, _Np> __r;
+
+ __execute_n_times<_Np>([&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA
{
+ if (__mask[__i])
+ __r._M_set(__i, __mem[__i]);
+ else
+ __r._M_set(__i, __merge[__i]);
+ });
+
+ return __r;
+ }
+
+ template <size_t _Bits, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr void
+ _S_store(_SveMaskWrapper<_Bits, _Np> __v, bool* __mem) noexcept
+ {
+ __execute_n_times<_Np>([&](auto __i)
+ _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA { __mem[__i] =
__v[__i]; });
+ }
+
+ template <size_t _Bits, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr void
+ _S_masked_store(const _SveMaskWrapper<_Bits, _Np> __v, bool* __mem,
+ const _SveMaskWrapper<_Bits, _Np> __k) noexcept
+ {
+ __execute_n_times<_Np>([&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA
{
+ if (__k[__i])
+ __mem[__i] = __v[__i];
+ });
+ }
+
+ template <size_t _Bits, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _SanitizedBitMask<_Np>
+ _S_to_bits(_SveMaskWrapper<_Bits, _Np> __x)
+ {
+ _ULLong __r = 0;
+ __execute_n_times<_Np>(
+ [&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA { __r |=
_ULLong(__x[__i]) << __i; });
+ return __r;
+ }
+
+ template <size_t _Np, typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static _MaskMember<_Tp>
+ _S_from_bitmask(_SanitizedBitMask<_Np> __bits, _TypeTag<_Tp>)
+ {
+ _SveMaskWrapper<sizeof(_Tp), _Np> __r;
+ __execute_n_times<_Np>([&](auto __i)
+ _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
__r._M_set(__i, __bits[__i]); });
+ return __r;
+ }
+
+ template <typename _Tp, typename _Up, typename _UAbi>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr auto
+ _S_convert(simd_mask<_Up, _UAbi> __x)
+ {
+ using _R = _SveMaskWrapper<sizeof(_Tp), simd_size_v<_Tp, _Abi>>;
+ if constexpr (__is_scalar_abi<_UAbi>())
+ {
+ _R __r{__sve_bool_type(svpfalse())};
+ __r._M_set(0, __data(__x));
+ return __r;
+ }
+ if constexpr (__is_sve_abi<_UAbi>())
+ {
+ if constexpr (sizeof(_Up) == sizeof(_Tp))
+ return __data(__x);
+ if constexpr (sizeof(_Up) < sizeof(_Tp))
+ {
+ __sve_bool_type __xmdata = __data(__x)._M_data;
+ __sve_bool_type __r = __xmdata;
+ for (size_t __up_size = sizeof(_Up); __up_size != sizeof(_Tp);
__up_size *= 2)
+ {
+ __r = svunpklo(__r);
+ }
+ return _R{__r};
+ }
+ else
+ {
+ _R __r{__sve_bool_type(svpfalse())};
+ constexpr size_t __min_size
+ = std::min(simd_size_v<_Tp, _Abi>, simd_mask<_Up,
_UAbi>::size());
+ __execute_n_times<__min_size>(
+ [&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
__r._M_set(__i, __x[__i]); });
+ return __r;
+ }
+ }
+ if constexpr (__is_neon_abi<_UAbi>())
+ {
+ _R __r{__sve_bool_type(svpfalse())};
+ constexpr size_t __min_size
+ = std::min(simd_size_v<_Tp, _Abi>, simd_mask<_Up, _UAbi>::size());
+ __execute_n_times<__min_size>(
+ [&](auto __i) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
__r._M_set(__i, __x[__i]); });
+ return __r;
+ }
+ if constexpr (__is_fixed_size_abi<_UAbi>())
+ {
+ return _S_convert<_Tp>(__data(__x));
+ }
+ return _R{};
+ }
+
+ template <typename _Tp, size_t _Np, bool _Sanitized>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _MaskMember<_Tp>
+ _S_convert(_BitMask<_Np, _Sanitized> __x)
+ {
+ _MaskMember<_Tp> __r{};
+ __execute_n_times<_Np>([&](auto __i)
+ _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA {
__r._M_set(__i, __x[__i]); });
+ return __r;
+ }
+
+ template <size_t _Bits, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _SveMaskWrapper<_Bits, _Np>
+ _S_logical_and(const _SveMaskWrapper<_Bits, _Np>& __x, const
_SveMaskWrapper<_Bits, _Np>& __y)
+ {
+ return svand_z(_SveMaskWrapper<_Bits,
_Np>::_BuiltinSveVectorType::__sve_active_mask(),
+ __x._M_data, __y._M_data);
+ }
+
+ template <size_t _Bits, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _SveMaskWrapper<_Bits, _Np>
+ _S_logical_or(const _SveMaskWrapper<_Bits, _Np>& __x, const
_SveMaskWrapper<_Bits, _Np>& __y)
+ {
+ return svorr_z(_SveMaskWrapper<_Bits,
_Np>::_BuiltinSveVectorType::__sve_active_mask(),
+ __x._M_data, __y._M_data);
+ }
+
+ template <size_t _Bits, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _SveMaskWrapper<_Bits, _Np>
+ _S_bit_not(const _SveMaskWrapper<_Bits, _Np>& __x)
+ {
+ return svnot_z(_SveMaskWrapper<_Bits,
_Np>::_BuiltinSveVectorType::__sve_active_mask(),
+ __x._M_data);
+ }
+
+ template <size_t _Bits, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _SveMaskWrapper<_Bits, _Np>
+ _S_bit_and(const _SveMaskWrapper<_Bits, _Np>& __x, const
_SveMaskWrapper<_Bits, _Np>& __y)
+ {
+ return svand_z(_SveMaskWrapper<_Bits,
_Np>::_BuiltinSveVectorType::__sve_active_mask(),
+ __x._M_data, __y._M_data);
+ }
+
+ template <size_t _Bits, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _SveMaskWrapper<_Bits, _Np>
+ _S_bit_or(const _SveMaskWrapper<_Bits, _Np>& __x, const
_SveMaskWrapper<_Bits, _Np>& __y)
+ {
+ return svorr_z(_SveMaskWrapper<_Bits,
_Np>::_BuiltinSveVectorType::__sve_active_mask(),
+ __x._M_data, __y._M_data);
+ }
+
+ template <size_t _Bits, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static constexpr _SveMaskWrapper<_Bits, _Np>
+ _S_bit_xor(const _SveMaskWrapper<_Bits, _Np>& __x, const
_SveMaskWrapper<_Bits, _Np>& __y)
+ {
+ return sveor_z(_SveMaskWrapper<_Bits,
_Np>::_BuiltinSveVectorType::__sve_active_mask(),
+ __x._M_data, __y._M_data);
+ }
+
+ template <size_t _Bits, size_t _Np>
+ static constexpr void
+ _S_set(_SveMaskWrapper<_Bits, _Np>& __k, int __i, bool __x) noexcept
+ {
+ auto __index = svcmpeq(_SveMaskWrapper<_Bits,
_Np>::_BuiltinSveVectorType::__sve_active_mask(),
+ __sve_mask_type<_Bits>::__index0123,
+ typename
__sve_mask_type<_Bits>::__sve_mask_uint_type(__i));
+ if (__x)
+ __k._M_data = svorr_z(_SveMaskWrapper<_Bits,
_Np>::_BuiltinSveVectorType::__sve_active_mask(),
+ __k._M_data, __index);
+ else
+ __k._M_data = svbic_z(_SveMaskWrapper<_Bits,
_Np>::_BuiltinSveVectorType::__sve_active_mask(),
+ __k._M_data, __index);
+ }
+
+ template <size_t _Bits, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static void
+ _S_masked_assign(_SveMaskWrapper<_Bits, _Np> __k, _SveMaskWrapper<_Bits,
_Np>& __lhs,
+ _SveMaskWrapper<_Bits, _Np> __rhs)
+ { __lhs._M_data = svsel(__k._M_data, __rhs._M_data, __lhs._M_data); }
+
+ template <size_t _Bits, size_t _Np>
+ _GLIBCXX_SIMD_INTRINSIC static void
+ _S_masked_assign(_SveMaskWrapper<_Bits, _Np> __k, _SveMaskWrapper<_Bits,
_Np>& __lhs,
+ bool __rhs)
+ {
+ __lhs._M_data
+ = svsel(__k._M_data,
_S_broadcast<__int_with_sizeof_t<_Bits>>(__rhs), __lhs._M_data);
+ }
+
+ template <typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static int
+ _S_popcount(simd_mask<_Tp, _Abi> __k)
+ {
+ constexpr size_t _Np = simd_size_v<_Tp, _Abi>;
+
+ return __sve_mask_type<sizeof(_Tp)>::__sve_mask_active_count(
+ __sve_vector_type<_Tp, _Np>::__sve_active_mask(), __k._M_data);
+ }
+
+ template <typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static bool
+ _S_all_of(simd_mask<_Tp, _Abi> __k)
+ { return _S_popcount(__k) == simd_size_v<_Tp, _Abi>; }
+
+ template <typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static bool
+ _S_any_of(simd_mask<_Tp, _Abi> __k)
+ { return svptest_any(__sve_vector_type<_Tp, simd_size_v<_Tp,
_Abi>>::__sve_active_mask(), __k._M_data); }
+
+ template <typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static bool
+ _S_none_of(simd_mask<_Tp, _Abi> __k)
+ { return !svptest_any(__sve_vector_type<_Tp, simd_size_v<_Tp,
_Abi>>::__sve_active_mask(), __k._M_data); }
+
+ template <typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static bool
+ _S_some_of(simd_mask<_Tp, _Abi> __k)
+ {
+ int __msk_count = _S_popcount(__k);
+ return (__msk_count > 0) && (__msk_count < (int) simd_size_v<_Tp,
_Abi>);
+ }
+
+ template <typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static int
+ _S_find_first_set(simd_mask<_Tp, _Abi> __k)
+ { return svclastb(svpfirst(__k._M_data, svpfalse()), -1,
__sve_mask_type<sizeof(_Tp)>::__index0123); }
+
+ template <typename _Tp>
+ _GLIBCXX_SIMD_INTRINSIC static int
+ _S_find_last_set(simd_mask<_Tp, _Abi> __k)
+ { return svclastb(__k._M_data, -1,
__sve_mask_type<sizeof(_Tp)>::__index0123); }
+ };
+
+_GLIBCXX_SIMD_END_NAMESPACE
+#endif // __cplusplus >= 201703L
+#endif // _GLIBCXX_EXPERIMENTAL_SIMD_SVE_H_
+// vim: sw=2 noet ts=8 sts=2 tw=100
diff --git a/libstdc++-v3/include/experimental/simd
b/libstdc++-v3/include/experimental/simd
index 2b9bdf9239a..1cb70713ebc 100644
--- a/libstdc++-v3/include/experimental/simd
+++ b/libstdc++-v3/include/experimental/simd
@@ -80,6 +80,9 @@
#include "bits/simd_x86.h"
#elif _GLIBCXX_SIMD_HAVE_NEON
#include "bits/simd_neon.h"
+#if _GLIBCXX_SIMD_HAVE_SVE
+#include "bits/simd_sve.h"
+#endif
#elif __ALTIVEC__
#include "bits/simd_ppc.h"
#endif
diff --git a/libstdc++-v3/testsuite/experimental/simd/tests/bits/main.h
b/libstdc++-v3/testsuite/experimental/simd/tests/bits/main.h
index 270b433aa17..880495cda34 100644
--- a/libstdc++-v3/testsuite/experimental/simd/tests/bits/main.h
+++ b/libstdc++-v3/testsuite/experimental/simd/tests/bits/main.h
@@ -29,6 +29,9 @@ template <class T>
invoke_test<simd<T, simd_abi::scalar>>(int());
invoke_test<simd<T, simd_abi::_VecBuiltin<16>>>(int());
invoke_test<simd<T, simd_abi::_VecBltnBtmsk<64>>>(int());
+ invoke_test<simd<T, simd_abi::_SveAbi<16>>>(int());
+ invoke_test<simd<T, simd_abi::_SveAbi<32>>>(int());
+ invoke_test<simd<T, simd_abi::_SveAbi<64>>>(int());
#elif EXTENDEDTESTS == 0
invoke_test<simd<T, simd_abi::_VecBuiltin<8>>>(int());
invoke_test<simd<T, simd_abi::_VecBuiltin<12>>>(int());
--
2.34.1
