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Implement assume_aligned using the standard API if available.

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This commit is contained in:
Rasmus Munk Larsen
2025-10-31 14:07:04 -07:00
parent e6dd44d267
commit 8ac6776925
3 changed files with 70 additions and 99 deletions
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24
Eigen/src/Core/arch/NEON/Complex.h
View File

@@ -280,13 +280,13 @@ EIGEN_STRONG_INLINE Packet2cf pandnot<Packet2cf>(const Packet2cf& a, const Packe
template <>
EIGEN_STRONG_INLINE Packet1cf pload<Packet1cf>(const std::complex<float>* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet1cf>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return Packet1cf(pload<Packet2f>((const float*)from));
EIGEN_DEBUG_ALIGNED_LOAD return Packet1cf(
pload<Packet2f>(reinterpret_cast<const float*>(assume_aligned<unpacket_traits<Packet1cf>::alignment>(from))));
}
template <>
EIGEN_STRONG_INLINE Packet2cf pload<Packet2cf>(const std::complex<float>* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet2cf>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return Packet2cf(pload<Packet4f>(reinterpret_cast<const float*>(from)));
EIGEN_DEBUG_ALIGNED_LOAD return Packet2cf(
pload<Packet4f>(reinterpret_cast<const float*>(assume_aligned<unpacket_traits<Packet2cf>::alignment>(from))));
}
template <>
@@ -309,13 +309,13 @@ EIGEN_STRONG_INLINE Packet2cf ploaddup<Packet2cf>(const std::complex<float>* fro
template <>
EIGEN_STRONG_INLINE void pstore<std::complex<float> >(std::complex<float>* to, const Packet1cf& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet1cf>::alignment);
EIGEN_DEBUG_ALIGNED_STORE pstore((float*)to, from.v);
EIGEN_DEBUG_ALIGNED_STORE pstore(
reinterpret_cast<float*>(assume_aligned<unpacket_traits<Packet1cf>::alignment>(to), from.v));
}
template <>
EIGEN_STRONG_INLINE void pstore<std::complex<float> >(std::complex<float>* to, const Packet2cf& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet2cf>::alignment);
EIGEN_DEBUG_ALIGNED_STORE pstore(reinterpret_cast<float*>(to), from.v);
EIGEN_DEBUG_ALIGNED_STORE pstore(reinterpret_cast<float*>(assume_aligned<unpacket_traits<Packet2cf>::alignment>(to)),
from.v);
}
template <>
@@ -531,8 +531,8 @@ struct unpacket_traits<Packet1cd> : neon_unpacket_default<Packet1cd, std::comple
template <>
EIGEN_STRONG_INLINE Packet1cd pload<Packet1cd>(const std::complex<double>* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet1cd>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return Packet1cd(pload<Packet2d>(reinterpret_cast<const double*>(from)));
EIGEN_DEBUG_ALIGNED_LOAD return Packet1cd(
pload<Packet2d>(reinterpret_cast<const double*>(assume_aligned<unpacket_traits<Packet1cd>::alignment>(from))));
}
template <>
@@ -645,8 +645,8 @@ EIGEN_STRONG_INLINE Packet1cd ploaddup<Packet1cd>(const std::complex<double>* fr
template <>
EIGEN_STRONG_INLINE void pstore<std::complex<double> >(std::complex<double>* to, const Packet1cd& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet1cd>::alignment);
EIGEN_DEBUG_ALIGNED_STORE pstore(reinterpret_cast<double*>(to), from.v);
EIGEN_DEBUG_ALIGNED_STORE pstore(
reinterpret_cast<double*>(assume_aligned<unpacket_traits<Packet1cd>::alignment>(to), from.v));
}
template <>

119
Eigen/src/Core/arch/NEON/PacketMath.h
View File

@@ -2261,13 +2261,11 @@ EIGEN_STRONG_INLINE Packet2ul plogical_shift_left(Packet2ul a) {
template <>
EIGEN_STRONG_INLINE Packet2f pload<Packet2f>(const float* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet2f>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1_f32(from);
EIGEN_DEBUG_ALIGNED_LOAD return vld1_f32(assume_aligned<unpacket_traits<Packet2f>::alignment>(from));
}
template <>
EIGEN_STRONG_INLINE Packet4f pload<Packet4f>(const float* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet4f>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_f32(from);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_f32(assume_aligned<unpacket_traits<Packet4f>::alignment>(from));
}
template <>
EIGEN_STRONG_INLINE Packet4c pload<Packet4c>(const int8_t* from) {
@@ -2277,13 +2275,11 @@ EIGEN_STRONG_INLINE Packet4c pload<Packet4c>(const int8_t* from) {
}
template <>
EIGEN_STRONG_INLINE Packet8c pload<Packet8c>(const int8_t* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet8c>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1_s8(from);
EIGEN_DEBUG_ALIGNED_LOAD return vld1_s8(assume_aligned<unpacket_traits<Packet8c>::alignment>(from));
}
template <>
EIGEN_STRONG_INLINE Packet16c pload<Packet16c>(const int8_t* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet16c>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_s8(from);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_s8(assume_aligned<unpacket_traits<Packet16c>::alignment>(from));
}
template <>
EIGEN_STRONG_INLINE Packet4uc pload<Packet4uc>(const uint8_t* from) {
@@ -2293,63 +2289,51 @@ EIGEN_STRONG_INLINE Packet4uc pload<Packet4uc>(const uint8_t* from) {
}
template <>
EIGEN_STRONG_INLINE Packet8uc pload<Packet8uc>(const uint8_t* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet8uc>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1_u8(from);
EIGEN_DEBUG_ALIGNED_LOAD return vld1_u8(assume_aligned<unpacket_traits<Packet8uc>::alignment>(from));
}
template <>
EIGEN_STRONG_INLINE Packet16uc pload<Packet16uc>(const uint8_t* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet16uc>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_u8(from);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_u8(assume_aligned<unpacket_traits<Packet16uc>::alignment>(from));
}
template <>
EIGEN_STRONG_INLINE Packet4s pload<Packet4s>(const int16_t* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet4s>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1_s16(from);
EIGEN_DEBUG_ALIGNED_LOAD return vld1_s16(assume_aligned<unpacket_traits<Packet4s>::alignment>(from));
}
template <>
EIGEN_STRONG_INLINE Packet8s pload<Packet8s>(const int16_t* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet8s>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_s16(from);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_s16(assume_aligned<unpacket_traits<Packet8s>::alignment>(from));
}
template <>
EIGEN_STRONG_INLINE Packet4us pload<Packet4us>(const uint16_t* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet4us>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1_u16(from);
EIGEN_DEBUG_ALIGNED_LOAD return vld1_u16(assume_aligned<unpacket_traits<Packet4us>::alignment>(from));
}
template <>
EIGEN_STRONG_INLINE Packet8us pload<Packet8us>(const uint16_t* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet8us>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_u16(from);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_u16(assume_aligned<unpacket_traits<Packet8us>::alignment>(from));
}
template <>
EIGEN_STRONG_INLINE Packet2i pload<Packet2i>(const int32_t* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet2i>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1_s32(from);
EIGEN_DEBUG_ALIGNED_LOAD return vld1_s32(assume_aligned<unpacket_traits<Packet2i>::alignment>(from));
}
template <>
EIGEN_STRONG_INLINE Packet4i pload<Packet4i>(const int32_t* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet4i>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_s32(from);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_s32(assume_aligned<unpacket_traits<Packet4i>::alignment>(from));
}
template <>
EIGEN_STRONG_INLINE Packet2ui pload<Packet2ui>(const uint32_t* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet2ui>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1_u32(from);
EIGEN_DEBUG_ALIGNED_LOAD return vld1_u32(assume_aligned<unpacket_traits<Packet2ui>::alignment>(from));
}
template <>
EIGEN_STRONG_INLINE Packet4ui pload<Packet4ui>(const uint32_t* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet4ui>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_u32(from);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_u32(assume_aligned<unpacket_traits<Packet4ui>::alignment>(from));
}
template <>
EIGEN_STRONG_INLINE Packet2l pload<Packet2l>(const int64_t* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet2l>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_s64(from);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_s64(assume_aligned<unpacket_traits<Packet2l>::alignment>(from));
}
template <>
EIGEN_STRONG_INLINE Packet2ul pload<Packet2ul>(const uint64_t* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet2ul>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_u64(from);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_u64(assume_aligned<unpacket_traits<Packet2ul>::alignment>(from));
}
template <>
@@ -2573,13 +2557,11 @@ EIGEN_STRONG_INLINE Packet4ui ploadquad<Packet4ui>(const uint32_t* from) {
template <>
EIGEN_STRONG_INLINE void pstore<float>(float* to, const Packet2f& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet2f>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1_f32(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1_f32(assume_aligned<unpacket_traits<Packet2f>::alignment>(to), from);
}
template <>
EIGEN_STRONG_INLINE void pstore<float>(float* to, const Packet4f& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet4f>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1q_f32(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1q_f32(assume_aligned<unpacket_traits<Packet4f>::alignment>(to), from);
}
template <>
EIGEN_STRONG_INLINE void pstore<int8_t>(int8_t* to, const Packet4c& from) {
@@ -2587,13 +2569,11 @@ EIGEN_STRONG_INLINE void pstore<int8_t>(int8_t* to, const Packet4c& from) {
}
template <>
EIGEN_STRONG_INLINE void pstore<int8_t>(int8_t* to, const Packet8c& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet8c>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1_s8(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1_s8(assume_aligned<unpacket_traits<Packetc>::alignment>(to), from);
}
template <>
EIGEN_STRONG_INLINE void pstore<int8_t>(int8_t* to, const Packet16c& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet16c>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1q_s8(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1q_s8(assume_aligned<unpacket_traits<Packet16c>::alignment>(to), from);
}
template <>
EIGEN_STRONG_INLINE void pstore<uint8_t>(uint8_t* to, const Packet4uc& from) {
@@ -2601,63 +2581,51 @@ EIGEN_STRONG_INLINE void pstore<uint8_t>(uint8_t* to, const Packet4uc& from) {
}
template <>
EIGEN_STRONG_INLINE void pstore<uint8_t>(uint8_t* to, const Packet8uc& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet8uc>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1_u8(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1_u8(assume_aligned<unpacket_traits<Packet8uc>::alignment>(to), from);
}
template <>
EIGEN_STRONG_INLINE void pstore<uint8_t>(uint8_t* to, const Packet16uc& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet16uc>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1q_u8(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1q_u8(assume_aligned<unpacket_traits<Packet16uc>::alignment>(to), from);
}
template <>
EIGEN_STRONG_INLINE void pstore<int16_t>(int16_t* to, const Packet4s& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet4s>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1_s16(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1_s16(assume_aligned<unpacket_traits<Packet4s>::alignment>(to), from);
}
template <>
EIGEN_STRONG_INLINE void pstore<int16_t>(int16_t* to, const Packet8s& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet8s>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1q_s16(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1q_s16(assume_aligned<unpacket_traits<Packet8s>::alignment>(to), from);
}
template <>
EIGEN_STRONG_INLINE void pstore<uint16_t>(uint16_t* to, const Packet4us& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet4us>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1_u16(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1_u16(assume_aligned<unpacket_traits<Packet4us>::alignment>(to), from);
}
template <>
EIGEN_STRONG_INLINE void pstore<uint16_t>(uint16_t* to, const Packet8us& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet8us>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1q_u16(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1q_u16(assume_aligned<unpacket_traits<Packet8us>::alignment>(to), from);
}
template <>
EIGEN_STRONG_INLINE void pstore<int32_t>(int32_t* to, const Packet2i& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet2i>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1_s32(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1_s32(assume_aligned<unpacket_traits<Packet2i>::alignment>(to), from);
}
template <>
EIGEN_STRONG_INLINE void pstore<int32_t>(int32_t* to, const Packet4i& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet4i>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1q_s32(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1q_s32(assume_aligned<unpacket_traits<Packet4i>::alignment>(to), from);
}
template <>
EIGEN_STRONG_INLINE void pstore<uint32_t>(uint32_t* to, const Packet2ui& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet2ui>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1_u32(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1_u32(assume_aligned<unpacket_traits<Packet2ui>::alignment>(to), from);
}
template <>
EIGEN_STRONG_INLINE void pstore<uint32_t>(uint32_t* to, const Packet4ui& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet4ui>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1q_u32(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1q_u32(assume_aligned<unpacket_traits<Packet4ui>::alignment>(to), from);
}
template <>
EIGEN_STRONG_INLINE void pstore<int64_t>(int64_t* to, const Packet2l& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet2l>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1q_s64(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1q_s64(assume_aligned<unpacket_traits<Packet2l>::alignment>(to), from);
}
template <>
EIGEN_STRONG_INLINE void pstore<uint64_t>(uint64_t* to, const Packet2ul& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet2ul>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1q_u64(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1q_u64(assume_aligned<unpacket_traits<Packet2ul>::alignment>(to), from);
}
template <>
@@ -4731,7 +4699,7 @@ EIGEN_STRONG_INLINE bfloat16 pfirst<Packet4bf>(const Packet4bf& from) {
template <>
EIGEN_STRONG_INLINE Packet4bf pload<Packet4bf>(const bfloat16* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet4bf>::alignment);
unpacket_traits<Packet4bf>::alignment);
return Packet4bf(pload<Packet4us>(reinterpret_cast<const uint16_t*>(from)));
}
@@ -4742,8 +4710,8 @@ EIGEN_STRONG_INLINE Packet4bf ploadu<Packet4bf>(const bfloat16* from) {
template <>
EIGEN_STRONG_INLINE void pstore<bfloat16>(bfloat16* to, const Packet4bf& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet4bf>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1_u16(reinterpret_cast<uint16_t*>(to), from);
EIGEN_DEBUG_ALIGNED_STORE vst1_u16(
reinterpret_cast<uint16_t*>(assume_aligned<unpacket_traits<Packet4bf>::alignment>(to)), from);
}
template <>
@@ -5233,7 +5201,7 @@ EIGEN_STRONG_INLINE Packet2d pcmp_eq(const Packet2d& a, const Packet2d& b) {
template <>
EIGEN_STRONG_INLINE Packet2d pload<Packet2d>(const double* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet2d>::alignment);
unpacket_traits<Packet2d>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_f64(from);
}
@@ -5248,8 +5216,7 @@ EIGEN_STRONG_INLINE Packet2d ploaddup<Packet2d>(const double* from) {
}
template <>
EIGEN_STRONG_INLINE void pstore<double>(double* to, const Packet2d& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet2d>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1q_f64(to, from);
EIGEN_DEBUG_ALIGNED_STORE vst1q_f64(assume_aligned<unpacket_traits<Packet2d>::alignment>(to), from);
}
template <>
@@ -5776,13 +5743,13 @@ EIGEN_STRONG_INLINE Packet4hf pandnot<Packet4hf>(const Packet4hf& a, const Packe
template <>
EIGEN_STRONG_INLINE Packet8hf pload<Packet8hf>(const Eigen::half* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet8hf>::alignment);
unpacket_traits<Packet8hf>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1q_f16(reinterpret_cast<const float16_t*>(from));
}
template <>
EIGEN_STRONG_INLINE Packet4hf pload<Packet4hf>(const Eigen::half* from) {
EIGEN_ASSUME_ALIGNED(from, unpacket_traits<Packet4hf>::alignment);
unpacket_traits<Packet4hf>::alignment);
EIGEN_DEBUG_ALIGNED_LOAD return vld1_f16(reinterpret_cast<const float16_t*>(from));
}
@@ -5858,14 +5825,14 @@ EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Packet4hf pinsertlast(const Packet4hf& a,
template <>
EIGEN_STRONG_INLINE void pstore<Eigen::half>(Eigen::half* to, const Packet8hf& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet8hf>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1q_f16(reinterpret_cast<float16_t*>(to), from);
EIGEN_DEBUG_ALIGNED_STORE vst1q_f16(
reinterpret_cast<float16_t*>(assume_aligned<unpacket_traits<Packet8hf>::alignment>(to)), from);
}
template <>
EIGEN_STRONG_INLINE void pstore<Eigen::half>(Eigen::half* to, const Packet4hf& from) {
EIGEN_ASSUME_ALIGNED(to, unpacket_traits<Packet4hf>::alignment);
EIGEN_DEBUG_ALIGNED_STORE vst1_f16(reinterpret_cast<float16_t*>(to), from);
EIGEN_DEBUG_ALIGNED_STORE vst1_f16(
reinterpret_cast<float16_t*>(assume_aligned<unpacket_traits<Packet4hf>::alignment>(to)), from);
}
template <>

26
Eigen/src/Core/util/Memory.h
View File

@@ -1354,18 +1354,22 @@ EIGEN_DEVICE_FUNC void destroy_at(T* p) {
}
#endif
/** \internal
* This informs the implementation that PTR is aligned to at least ALIGN_BYTES
*/
#ifndef EIGEN_ASSUME_ALIGNED
#if defined(__cpp_lib_assume_aligned) && (__cpp_lib_assume_aligned >= 201811L)
#define EIGEN_ASSUME_ALIGNED(PTR, ALIGN_BYTES) \
{ PTR = std::assume_aligned<ALIGN_BYTES>(PTR); }
#elif EIGEN_HAS_BUILTIN(__builtin_assume_aligned)
#define EIGEN_ASSUME_ALIGNED(PTR, ALIGN_BYTES) \
{ PTR = static_cast<decltype(PTR)>(__builtin_assume_aligned(PTR, ALIGN_BYTES)); }
#if !defined(EIGEN_DONT_ASSUME_ALIGNED) && defined(__cpp_lib_assume_aligned) && (__cpp_lib_assume_aligned >= 201811L)
template <std::size_t N, typename T>
EIGEN_STRING_INLINE EIGEN_DEVICE_FUNCTION constexpr T* assume_aligned(T* ptr) {
return std::assume_aligned<N, T>(ptr);
}
#elif !defined(EIGEN_DONT_ASSUME_ALIGNED) && EIGEN_HAS_BUILTIN(__builtin_assume_aligned)
template <std::size_t N, typename T>
EIGEN_STRING_INLINE EIGEN_DEVICE_FUNCTION T* assume_aligned(T* ptr) {
return static_cast<T*>(__builtin_assume_aligned(ptr, N));
}
#else
#define EIGEN_ASSUME_ALIGNED(PTR, ALIGN_BYTES) /* do nothing */
template <std::size_t N, typename T>
EIGEN_STRING_INLINE EIGEN_DEVICE_FUNCTION constexpr T* assume_aligned(T* ptr) {
return ptr;
}
#endif
#endif