native.arm.neon Module Reference

Exported Modules
module	native.arm.features
module	native.simd

Functions
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::sqadd (simd< T, N, Arch > a, simd< T, N, Arch > b) noexcept
	Signed saturating lane addition.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16) && requires { sizeof(simd<T, N, Arch>); })
consteval simd< T, N, Arch >	native::sqadd (simd< T, N, Arch > a, simd< T, N, Arch > b) noexcept
	Evaluate constant operands when NEON is absent.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_unsigned_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::uqadd (simd< T, N, Arch > a, simd< T, N, Arch > b) noexcept
	Unsigned saturating lane addition.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_unsigned_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16) && requires { sizeof(simd<T, N, Arch>); })
consteval simd< T, N, Arch >	native::uqadd (simd< T, N, Arch > a, simd< T, N, Arch > b) noexcept
	Evaluate constant operands when NEON is absent.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::sqsub (simd< T, N, Arch > a, simd< T, N, Arch > b) noexcept
	Signed saturating lane subtraction.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16) && requires { sizeof(simd<T, N, Arch>); })
consteval simd< T, N, Arch >	native::sqsub (simd< T, N, Arch > a, simd< T, N, Arch > b) noexcept
	Evaluate constant operands when NEON is absent.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_unsigned_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::uqsub (simd< T, N, Arch > a, simd< T, N, Arch > b) noexcept
	Unsigned saturating lane subtraction.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_unsigned_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16) && requires { sizeof(simd<T, N, Arch>); })
consteval simd< T, N, Arch >	native::uqsub (simd< T, N, Arch > a, simd< T, N, Arch > b) noexcept
	Evaluate constant operands when NEON is absent.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) == 2 || sizeof(T) == 4) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::sqdmulh (simd< T, N, Arch > a, simd< T, N, Arch > b) noexcept
	Signed doubled multiply-high, saturating the minimum-times-minimum case.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) == 2 || sizeof(T) == 4) && (sizeof(T) * N == 8 || sizeof(T) * N == 16) && requires { sizeof(simd<T, N, Arch>); })
consteval simd< T, N, Arch >	native::sqdmulh (simd< T, N, Arch > a, simd< T, N, Arch > b) noexcept
	Evaluate constant operands without NEON when the storage shape exists.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) == 2 || sizeof(T) == 4) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::sqrdmulh (simd< T, N, Arch > a, simd< T, N, Arch > b) noexcept
	Signed doubled multiply-high with rounding before final saturation.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) == 2 || sizeof(T) == 4) && (sizeof(T) * N == 8 || sizeof(T) * N == 16) && requires { sizeof(simd<T, N, Arch>); })
consteval simd< T, N, Arch >	native::sqrdmulh (simd< T, N, Arch > a, simd< T, N, Arch > b) noexcept
	Evaluate constant operands without NEON when the storage shape exists.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::sshl (simd< T, N, Arch > a, simd< std::make_signed_t< T >, N, Arch > b) noexcept
	Shift by each count lane's signed low byte; negative counts shift right.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16) && requires { sizeof(simd<T, N, Arch>); })
consteval simd< T, N, Arch >	native::sshl (simd< T, N, Arch > a, simd< std::make_signed_t< T >, N, Arch > b) noexcept
	Evaluate constant operands when NEON is absent.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::srshl (simd< T, N, Arch > a, simd< std::make_signed_t< T >, N, Arch > b) noexcept
	Shift by each count lane's signed low byte; negative counts shift right with rounding.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16) && requires { sizeof(simd<T, N, Arch>); })
consteval simd< T, N, Arch >	native::srshl (simd< T, N, Arch > a, simd< std::make_signed_t< T >, N, Arch > b) noexcept
	Evaluate constant operands when NEON is absent.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::sqshl (simd< T, N, Arch > a, simd< std::make_signed_t< T >, N, Arch > b) noexcept
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16) && requires { sizeof(simd<T, N, Arch>); })
consteval simd< T, N, Arch >	native::sqshl (simd< T, N, Arch > a, simd< std::make_signed_t< T >, N, Arch > b) noexcept
	Evaluate constant operands when NEON is absent.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::sqrshl (simd< T, N, Arch > a, simd< std::make_signed_t< T >, N, Arch > b) noexcept
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16) && requires { sizeof(simd<T, N, Arch>); })
consteval simd< T, N, Arch >	native::sqrshl (simd< T, N, Arch > a, simd< std::make_signed_t< T >, N, Arch > b) noexcept
	Evaluate constant operands when NEON is absent.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_unsigned_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::ushl (simd< T, N, Arch > a, simd< std::make_signed_t< T >, N, Arch > b) noexcept
	Shift by each count lane's signed low byte; negative counts shift right.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_unsigned_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16) && requires { sizeof(simd<T, N, Arch>); })
consteval simd< T, N, Arch >	native::ushl (simd< T, N, Arch > a, simd< std::make_signed_t< T >, N, Arch > b) noexcept
	Evaluate constant operands when NEON is absent.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_unsigned_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::urshl (simd< T, N, Arch > a, simd< std::make_signed_t< T >, N, Arch > b) noexcept
	Shift by each count lane's signed low byte; negative counts shift right with rounding.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_unsigned_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16) && requires { sizeof(simd<T, N, Arch>); })
consteval simd< T, N, Arch >	native::urshl (simd< T, N, Arch > a, simd< std::make_signed_t< T >, N, Arch > b) noexcept
	Evaluate constant operands when NEON is absent.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_unsigned_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::uqshl (simd< T, N, Arch > a, simd< std::make_signed_t< T >, N, Arch > b) noexcept
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_unsigned_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16) && requires { sizeof(simd<T, N, Arch>); })
consteval simd< T, N, Arch >	native::uqshl (simd< T, N, Arch > a, simd< std::make_signed_t< T >, N, Arch > b) noexcept
	Evaluate constant operands when NEON is absent.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_unsigned_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::uqrshl (simd< T, N, Arch > a, simd< std::make_signed_t< T >, N, Arch > b) noexcept
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_unsigned_v<T> && (sizeof(T) <= 8) && (sizeof(T) * N == 8 || sizeof(T) * N == 16) && requires { sizeof(simd<T, N, Arch>); })
consteval simd< T, N, Arch >	native::uqrshl (simd< T, N, Arch > a, simd< std::make_signed_t< T >, N, Arch > b) noexcept
	Evaluate constant operands when NEON is absent.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_signed_v<T> && sizeof(T) * N == 16 && (sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8))
constexpr auto	native::sqxtn (simd< T, N, Arch > a) noexcept
	Narrow 128 bits with saturation to a 64-bit result.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_signed_v<T> && sizeof(T) * N == 16 && (sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8) && requires { sizeof(simd<T, N, Arch>); })
consteval auto	native::sqxtn (simd< T, N, Arch > a) noexcept
	Evaluate constant operands without NEON when storage exists.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_signed_v<T> && sizeof(T) * N == 16 && (sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8))
constexpr auto	native::sqxtn_high (simd< std::conditional_t< sizeof(T)==2, std::int8_t, std::conditional_t< sizeof(T)==4, std::int16_t, std::int32_t > >, N, Arch > low, simd< T, N, Arch > a) noexcept
	Narrow with saturation and append above the preserved low half.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_signed_v<T> && sizeof(T) * N == 16 && (sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8) && requires { sizeof(simd<T, N, Arch>); })
consteval auto	native::sqxtn_high (simd< std::conditional_t< sizeof(T)==2, std::int8_t, std::conditional_t< sizeof(T)==4, std::int16_t, std::int32_t > >, N, Arch > low, simd< T, N, Arch > a) noexcept
	Evaluate constant operands without NEON when storage exists.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_unsigned_v<T> && sizeof(T) * N == 16 && (sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8))
constexpr auto	native::uqxtn (simd< T, N, Arch > a) noexcept
	Narrow 128 bits with saturation to a 64-bit result.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_unsigned_v<T> && sizeof(T) * N == 16 && (sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8) && requires { sizeof(simd<T, N, Arch>); })
consteval auto	native::uqxtn (simd< T, N, Arch > a) noexcept
	Evaluate constant operands without NEON when storage exists.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_unsigned_v<T> && sizeof(T) * N == 16 && (sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8))
constexpr auto	native::uqxtn_high (simd< std::conditional_t< sizeof(T)==2, std::uint8_t, std::conditional_t< sizeof(T)==4, std::uint16_t, std::uint32_t > >, N, Arch > low, simd< T, N, Arch > a) noexcept
	Narrow with saturation and append above the preserved low half.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_unsigned_v<T> && sizeof(T) * N == 16 && (sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8) && requires { sizeof(simd<T, N, Arch>); })
consteval auto	native::uqxtn_high (simd< std::conditional_t< sizeof(T)==2, std::uint8_t, std::conditional_t< sizeof(T)==4, std::uint16_t, std::uint32_t > >, N, Arch > low, simd< T, N, Arch > a) noexcept
	Evaluate constant operands without NEON when storage exists.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_signed_v<T> && sizeof(T) * N == 16 && (sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8))
constexpr auto	native::sqxtun (simd< T, N, Arch > a) noexcept
	Narrow 128 bits with saturation to a 64-bit result.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_signed_v<T> && sizeof(T) * N == 16 && (sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8) && requires { sizeof(simd<T, N, Arch>); })
consteval auto	native::sqxtun (simd< T, N, Arch > a) noexcept
	Evaluate constant operands without NEON when storage exists.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_signed_v<T> && sizeof(T) * N == 16 && (sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8))
constexpr auto	native::sqxtun_high (simd< std::conditional_t< sizeof(T)==2, std::uint8_t, std::conditional_t< sizeof(T)==4, std::uint16_t, std::uint32_t > >, N, Arch > low, simd< T, N, Arch > a) noexcept
	Narrow with saturation and append above the preserved low half.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (!Arch.has(arm_feature::neon) && std::is_signed_v<T> && sizeof(T) * N == 16 && (sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8) && requires { sizeof(simd<T, N, Arch>); })
consteval auto	native::sqxtun_high (simd< std::conditional_t< sizeof(T)==2, std::uint8_t, std::conditional_t< sizeof(T)==4, std::uint16_t, std::uint32_t > >, N, Arch > low, simd< T, N, Arch > a) noexcept
	Evaluate constant operands without NEON when storage exists.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && (sizeof(T) <= 4) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::clz (simd< T, N, Arch > a) noexcept
	Count leading zero bits in each lane, including the full width for zero.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && std::is_signed_v<T> && (sizeof(T) <= 4) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::cls (simd< T, N, Arch > a) noexcept
	Count leading sign bits in each lane, excluding the sign bit itself.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && (sizeof(T) == 1) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::rbit (simd< T, N, Arch > a) noexcept
	Reverse the eight bits within each byte lane.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && (sizeof(T) == 1) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::rev16 (simd< T, N, Arch > a) noexcept
	Reverse byte lanes within each 16-bit block.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && (sizeof(T) <= 2) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::rev32 (simd< T, N, Arch > a) noexcept
	Reverse byte or halfword lanes within each 32-bit block.
template<isa< arm > Arch, simd_integer_element T, std::size_t N> requires (Arch.has(arm_feature::neon) && (sizeof(T) <= 4) && (sizeof(T) * N == 8 || sizeof(T) * N == 16))
constexpr simd< T, N, Arch >	native::rev64 (simd< T, N, Arch > a) noexcept
	Reverse byte, halfword or word lanes within each 64-bit block.

Files
file	src/native.arm.neon.ccm