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Diffstat (limited to 'Eigen/src/Core/arch/AVX512/PacketMath.h')
| -rw-r--r-- | Eigen/src/Core/arch/AVX512/PacketMath.h | 1316 |
1 files changed, 1316 insertions, 0 deletions
diff --git a/Eigen/src/Core/arch/AVX512/PacketMath.h b/Eigen/src/Core/arch/AVX512/PacketMath.h new file mode 100644 index 000000000..f6500a16e --- /dev/null +++ b/Eigen/src/Core/arch/AVX512/PacketMath.h @@ -0,0 +1,1316 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. +// +// Copyright (C) 2016 Benoit Steiner (benoit.steiner.goog@gmail.com) +// +// This Source Code Form is subject to the terms of the Mozilla +// Public License v. 2.0. If a copy of the MPL was not distributed +// with this file, You can obtain one at http://mozilla.org/MPL/2.0/. + +#ifndef EIGEN_PACKET_MATH_AVX512_H +#define EIGEN_PACKET_MATH_AVX512_H + +namespace Eigen { + +namespace internal { + +#ifndef EIGEN_CACHEFRIENDLY_PRODUCT_THRESHOLD +#define EIGEN_CACHEFRIENDLY_PRODUCT_THRESHOLD 8 +#endif + +#ifndef EIGEN_ARCH_DEFAULT_NUMBER_OF_REGISTERS +#define EIGEN_ARCH_DEFAULT_NUMBER_OF_REGISTERS (2*sizeof(void*)) +#endif + +#ifdef __FMA__ +#ifndef EIGEN_HAS_SINGLE_INSTRUCTION_MADD +#define EIGEN_HAS_SINGLE_INSTRUCTION_MADD +#endif +#endif + +typedef __m512 Packet16f; +typedef __m512i Packet16i; +typedef __m512d Packet8d; + +template <> +struct is_arithmetic<__m512> { + enum { value = true }; +}; +template <> +struct is_arithmetic<__m512i> { + enum { value = true }; +}; +template <> +struct is_arithmetic<__m512d> { + enum { value = true }; +}; + +template<> struct packet_traits<float> : default_packet_traits +{ + typedef Packet16f type; + typedef Packet8f half; + enum { + Vectorizable = 1, + AlignedOnScalar = 1, + size = 16, + HasHalfPacket = 1, +#if EIGEN_GNUC_AT_LEAST(5, 3) +#ifdef EIGEN_VECTORIZE_AVX512DQ + HasLog = 1, +#endif + HasExp = 1, + HasSqrt = 1, + HasRsqrt = 1, +#endif + HasDiv = 1 + }; + }; +template<> struct packet_traits<double> : default_packet_traits +{ + typedef Packet8d type; + typedef Packet4d half; + enum { + Vectorizable = 1, + AlignedOnScalar = 1, + size = 8, + HasHalfPacket = 1, +#if EIGEN_GNUC_AT_LEAST(5, 3) + HasSqrt = 1, + HasRsqrt = EIGEN_FAST_MATH, +#endif + HasDiv = 1 + }; +}; + +/* TODO Implement AVX512 for integers +template<> struct packet_traits<int> : default_packet_traits +{ + typedef Packet16i type; + enum { + Vectorizable = 1, + AlignedOnScalar = 1, + size=8 + }; +}; +*/ + +template <> +struct unpacket_traits<Packet16f> { + typedef float type; + typedef Packet8f half; + enum { size = 16, alignment=Aligned64 }; +}; +template <> +struct unpacket_traits<Packet8d> { + typedef double type; + typedef Packet4d half; + enum { size = 8, alignment=Aligned64 }; +}; +template <> +struct unpacket_traits<Packet16i> { + typedef int type; + typedef Packet8i half; + enum { size = 16, alignment=Aligned64 }; +}; + +template <> +EIGEN_STRONG_INLINE Packet16f pset1<Packet16f>(const float& from) { + return _mm512_set1_ps(from); +} +template <> +EIGEN_STRONG_INLINE Packet8d pset1<Packet8d>(const double& from) { + return _mm512_set1_pd(from); +} +template <> +EIGEN_STRONG_INLINE Packet16i pset1<Packet16i>(const int& from) { + return _mm512_set1_epi32(from); +} + +template <> +EIGEN_STRONG_INLINE Packet16f pload1<Packet16f>(const float* from) { + return _mm512_broadcastss_ps(_mm_load_ps1(from)); +} +template <> +EIGEN_STRONG_INLINE Packet8d pload1<Packet8d>(const double* from) { + return _mm512_broadcastsd_pd(_mm_load_pd1(from)); +} + +template <> +EIGEN_STRONG_INLINE Packet16f plset<Packet16f>(const float& a) { + return _mm512_add_ps( + _mm512_set1_ps(a), + _mm512_set_ps(15.0f, 14.0f, 13.0f, 12.0f, 11.0f, 10.0f, 9.0f, 8.0f, 7.0f, 6.0f, 5.0f, + 4.0f, 3.0f, 2.0f, 1.0f, 0.0f)); +} +template <> +EIGEN_STRONG_INLINE Packet8d plset<Packet8d>(const double& a) { + return _mm512_add_pd(_mm512_set1_pd(a), + _mm512_set_pd(7.0, 6.0, 5.0, 4.0, 3.0, 2.0, 1.0, 0.0)); +} + +template <> +EIGEN_STRONG_INLINE Packet16f padd<Packet16f>(const Packet16f& a, + const Packet16f& b) { + return _mm512_add_ps(a, b); +} +template <> +EIGEN_STRONG_INLINE Packet8d padd<Packet8d>(const Packet8d& a, + const Packet8d& b) { + return _mm512_add_pd(a, b); +} + +template <> +EIGEN_STRONG_INLINE Packet16f psub<Packet16f>(const Packet16f& a, + const Packet16f& b) { + return _mm512_sub_ps(a, b); +} +template <> +EIGEN_STRONG_INLINE Packet8d psub<Packet8d>(const Packet8d& a, + const Packet8d& b) { + return _mm512_sub_pd(a, b); +} + +template <> +EIGEN_STRONG_INLINE Packet16f pnegate(const Packet16f& a) { + return _mm512_sub_ps(_mm512_set1_ps(0.0), a); +} +template <> +EIGEN_STRONG_INLINE Packet8d pnegate(const Packet8d& a) { + return _mm512_sub_pd(_mm512_set1_pd(0.0), a); +} + +template <> +EIGEN_STRONG_INLINE Packet16f pconj(const Packet16f& a) { + return a; +} +template <> +EIGEN_STRONG_INLINE Packet8d pconj(const Packet8d& a) { + return a; +} +template <> +EIGEN_STRONG_INLINE Packet16i pconj(const Packet16i& a) { + return a; +} + +template <> +EIGEN_STRONG_INLINE Packet16f pmul<Packet16f>(const Packet16f& a, + const Packet16f& b) { + return _mm512_mul_ps(a, b); +} +template <> +EIGEN_STRONG_INLINE Packet8d pmul<Packet8d>(const Packet8d& a, + const Packet8d& b) { + return _mm512_mul_pd(a, b); +} + +template <> +EIGEN_STRONG_INLINE Packet16f pdiv<Packet16f>(const Packet16f& a, + const Packet16f& b) { + return _mm512_div_ps(a, b); +} +template <> +EIGEN_STRONG_INLINE Packet8d pdiv<Packet8d>(const Packet8d& a, + const Packet8d& b) { + return _mm512_div_pd(a, b); +} + +#ifdef __FMA__ +template <> +EIGEN_STRONG_INLINE Packet16f pmadd(const Packet16f& a, const Packet16f& b, + const Packet16f& c) { + return _mm512_fmadd_ps(a, b, c); +} +template <> +EIGEN_STRONG_INLINE Packet8d pmadd(const Packet8d& a, const Packet8d& b, + const Packet8d& c) { + return _mm512_fmadd_pd(a, b, c); +} +#endif + +template <> +EIGEN_STRONG_INLINE Packet16f pmin<Packet16f>(const Packet16f& a, + const Packet16f& b) { + return _mm512_min_ps(a, b); +} +template <> +EIGEN_STRONG_INLINE Packet8d pmin<Packet8d>(const Packet8d& a, + const Packet8d& b) { + return _mm512_min_pd(a, b); +} + +template <> +EIGEN_STRONG_INLINE Packet16f pmax<Packet16f>(const Packet16f& a, + const Packet16f& b) { + return _mm512_max_ps(a, b); +} +template <> +EIGEN_STRONG_INLINE Packet8d pmax<Packet8d>(const Packet8d& a, + const Packet8d& b) { + return _mm512_max_pd(a, b); +} + +template <> +EIGEN_STRONG_INLINE Packet16f pand<Packet16f>(const Packet16f& a, + const Packet16f& b) { +#ifdef EIGEN_VECTORIZE_AVX512DQ + return _mm512_and_ps(a, b); +#else + Packet16f res = _mm512_undefined_ps(); + Packet4f lane0_a = _mm512_extractf32x4_ps(a, 0); + Packet4f lane0_b = _mm512_extractf32x4_ps(b, 0); + res = _mm512_insertf32x4(res, _mm_and_ps(lane0_a, lane0_b), 0); + + Packet4f lane1_a = _mm512_extractf32x4_ps(a, 1); + Packet4f lane1_b = _mm512_extractf32x4_ps(b, 1); + res = _mm512_insertf32x4(res, _mm_and_ps(lane1_a, lane1_b), 1); + + Packet4f lane2_a = _mm512_extractf32x4_ps(a, 2); + Packet4f lane2_b = _mm512_extractf32x4_ps(b, 2); + res = _mm512_insertf32x4(res, _mm_and_ps(lane2_a, lane2_b), 2); + + Packet4f lane3_a = _mm512_extractf32x4_ps(a, 3); + Packet4f lane3_b = _mm512_extractf32x4_ps(b, 3); + res = _mm512_insertf32x4(res, _mm_and_ps(lane3_a, lane3_b), 3); + + return res; +#endif +} +template <> +EIGEN_STRONG_INLINE Packet8d pand<Packet8d>(const Packet8d& a, + const Packet8d& b) { +#ifdef EIGEN_VECTORIZE_AVX512DQ + return _mm512_and_pd(a, b); +#else + Packet8d res = _mm512_undefined_pd(); + Packet4d lane0_a = _mm512_extractf64x4_pd(a, 0); + Packet4d lane0_b = _mm512_extractf64x4_pd(b, 0); + res = _mm512_insertf64x4(res, _mm256_and_pd(lane0_a, lane0_b), 0); + + Packet4d lane1_a = _mm512_extractf64x4_pd(a, 1); + Packet4d lane1_b = _mm512_extractf64x4_pd(b, 1); + res = _mm512_insertf64x4(res, _mm256_and_pd(lane1_a, lane1_b), 1); + + return res; +#endif +} +template <> +EIGEN_STRONG_INLINE Packet16f por<Packet16f>(const Packet16f& a, + const Packet16f& b) { +#ifdef EIGEN_VECTORIZE_AVX512DQ + return _mm512_or_ps(a, b); +#else + Packet16f res = _mm512_undefined_ps(); + Packet4f lane0_a = _mm512_extractf32x4_ps(a, 0); + Packet4f lane0_b = _mm512_extractf32x4_ps(b, 0); + res = _mm512_insertf32x4(res, _mm_or_ps(lane0_a, lane0_b), 0); + + Packet4f lane1_a = _mm512_extractf32x4_ps(a, 1); + Packet4f lane1_b = _mm512_extractf32x4_ps(b, 1); + res = _mm512_insertf32x4(res, _mm_or_ps(lane1_a, lane1_b), 1); + + Packet4f lane2_a = _mm512_extractf32x4_ps(a, 2); + Packet4f lane2_b = _mm512_extractf32x4_ps(b, 2); + res = _mm512_insertf32x4(res, _mm_or_ps(lane2_a, lane2_b), 2); + + Packet4f lane3_a = _mm512_extractf32x4_ps(a, 3); + Packet4f lane3_b = _mm512_extractf32x4_ps(b, 3); + res = _mm512_insertf32x4(res, _mm_or_ps(lane3_a, lane3_b), 3); + + return res; +#endif +} + +template <> +EIGEN_STRONG_INLINE Packet8d por<Packet8d>(const Packet8d& a, + const Packet8d& b) { +#ifdef EIGEN_VECTORIZE_AVX512DQ + return _mm512_or_pd(a, b); +#else + Packet8d res = _mm512_undefined_pd(); + Packet4d lane0_a = _mm512_extractf64x4_pd(a, 0); + Packet4d lane0_b = _mm512_extractf64x4_pd(b, 0); + res = _mm512_insertf64x4(res, _mm256_or_pd(lane0_a, lane0_b), 0); + + Packet4d lane1_a = _mm512_extractf64x4_pd(a, 1); + Packet4d lane1_b = _mm512_extractf64x4_pd(b, 1); + res = _mm512_insertf64x4(res, _mm256_or_pd(lane1_a, lane1_b), 1); + + return res; +#endif +} + +template <> +EIGEN_STRONG_INLINE Packet16f pxor<Packet16f>(const Packet16f& a, + const Packet16f& b) { +#ifdef EIGEN_VECTORIZE_AVX512DQ + return _mm512_xor_ps(a, b); +#else + Packet16f res = _mm512_undefined_ps(); + Packet4f lane0_a = _mm512_extractf32x4_ps(a, 0); + Packet4f lane0_b = _mm512_extractf32x4_ps(b, 0); + res = _mm512_insertf32x4(res, _mm_xor_ps(lane0_a, lane0_b), 0); + + Packet4f lane1_a = _mm512_extractf32x4_ps(a, 1); + Packet4f lane1_b = _mm512_extractf32x4_ps(b, 1); + res = _mm512_insertf32x4(res, _mm_xor_ps(lane1_a, lane1_b), 1); + + Packet4f lane2_a = _mm512_extractf32x4_ps(a, 2); + Packet4f lane2_b = _mm512_extractf32x4_ps(b, 2); + res = _mm512_insertf32x4(res, _mm_xor_ps(lane2_a, lane2_b), 2); + + Packet4f lane3_a = _mm512_extractf32x4_ps(a, 3); + Packet4f lane3_b = _mm512_extractf32x4_ps(b, 3); + res = _mm512_insertf32x4(res, _mm_xor_ps(lane3_a, lane3_b), 3); + + return res; +#endif +} +template <> +EIGEN_STRONG_INLINE Packet8d pxor<Packet8d>(const Packet8d& a, + const Packet8d& b) { +#ifdef EIGEN_VECTORIZE_AVX512DQ + return _mm512_xor_pd(a, b); +#else + Packet8d res = _mm512_undefined_pd(); + Packet4d lane0_a = _mm512_extractf64x4_pd(a, 0); + Packet4d lane0_b = _mm512_extractf64x4_pd(b, 0); + res = _mm512_insertf64x4(res, _mm256_xor_pd(lane0_a, lane0_b), 0); + + Packet4d lane1_a = _mm512_extractf64x4_pd(a, 1); + Packet4d lane1_b = _mm512_extractf64x4_pd(b, 1); + res = _mm512_insertf64x4(res, _mm256_xor_pd(lane1_a, lane1_b), 1); + + return res; +#endif +} + +template <> +EIGEN_STRONG_INLINE Packet16f pandnot<Packet16f>(const Packet16f& a, + const Packet16f& b) { +#ifdef EIGEN_VECTORIZE_AVX512DQ + return _mm512_andnot_ps(a, b); +#else + Packet16f res = _mm512_undefined_ps(); + Packet4f lane0_a = _mm512_extractf32x4_ps(a, 0); + Packet4f lane0_b = _mm512_extractf32x4_ps(b, 0); + res = _mm512_insertf32x4(res, _mm_andnot_ps(lane0_a, lane0_b), 0); + + Packet4f lane1_a = _mm512_extractf32x4_ps(a, 1); + Packet4f lane1_b = _mm512_extractf32x4_ps(b, 1); + res = _mm512_insertf32x4(res, _mm_andnot_ps(lane1_a, lane1_b), 1); + + Packet4f lane2_a = _mm512_extractf32x4_ps(a, 2); + Packet4f lane2_b = _mm512_extractf32x4_ps(b, 2); + res = _mm512_insertf32x4(res, _mm_andnot_ps(lane2_a, lane2_b), 2); + + Packet4f lane3_a = _mm512_extractf32x4_ps(a, 3); + Packet4f lane3_b = _mm512_extractf32x4_ps(b, 3); + res = _mm512_insertf32x4(res, _mm_andnot_ps(lane3_a, lane3_b), 3); + + return res; +#endif +} +template <> +EIGEN_STRONG_INLINE Packet8d pandnot<Packet8d>(const Packet8d& a, + const Packet8d& b) { +#ifdef EIGEN_VECTORIZE_AVX512DQ + return _mm512_andnot_pd(a, b); +#else + Packet8d res = _mm512_undefined_pd(); + Packet4d lane0_a = _mm512_extractf64x4_pd(a, 0); + Packet4d lane0_b = _mm512_extractf64x4_pd(b, 0); + res = _mm512_insertf64x4(res, _mm256_andnot_pd(lane0_a, lane0_b), 0); + + Packet4d lane1_a = _mm512_extractf64x4_pd(a, 1); + Packet4d lane1_b = _mm512_extractf64x4_pd(b, 1); + res = _mm512_insertf64x4(res, _mm256_andnot_pd(lane1_a, lane1_b), 1); + + return res; +#endif +} + +template <> +EIGEN_STRONG_INLINE Packet16f pload<Packet16f>(const float* from) { + EIGEN_DEBUG_ALIGNED_LOAD return _mm512_load_ps(from); +} +template <> +EIGEN_STRONG_INLINE Packet8d pload<Packet8d>(const double* from) { + EIGEN_DEBUG_ALIGNED_LOAD return _mm512_load_pd(from); +} +template <> +EIGEN_STRONG_INLINE Packet16i pload<Packet16i>(const int* from) { + EIGEN_DEBUG_ALIGNED_LOAD return _mm512_load_si512( + reinterpret_cast<const __m512i*>(from)); +} + +template <> +EIGEN_STRONG_INLINE Packet16f ploadu<Packet16f>(const float* from) { + EIGEN_DEBUG_UNALIGNED_LOAD return _mm512_loadu_ps(from); +} +template <> +EIGEN_STRONG_INLINE Packet8d ploadu<Packet8d>(const double* from) { + EIGEN_DEBUG_UNALIGNED_LOAD return _mm512_loadu_pd(from); +} +template <> +EIGEN_STRONG_INLINE Packet16i ploadu<Packet16i>(const int* from) { + EIGEN_DEBUG_UNALIGNED_LOAD return _mm512_loadu_si512( + reinterpret_cast<const __m512i*>(from)); +} + +// Loads 8 floats from memory a returns the packet +// {a0, a0 a1, a1, a2, a2, a3, a3, a4, a4, a5, a5, a6, a6, a7, a7} +template <> +EIGEN_STRONG_INLINE Packet16f ploaddup<Packet16f>(const float* from) { + Packet8f lane0 = _mm256_broadcast_ps((const __m128*)(const void*)from); + // mimic an "inplace" permutation of the lower 128bits using a blend + lane0 = _mm256_blend_ps( + lane0, _mm256_castps128_ps256(_mm_permute_ps( + _mm256_castps256_ps128(lane0), _MM_SHUFFLE(1, 0, 1, 0))), + 15); + // then we can perform a consistent permutation on the global register to get + // everything in shape: + lane0 = _mm256_permute_ps(lane0, _MM_SHUFFLE(3, 3, 2, 2)); + + Packet8f lane1 = _mm256_broadcast_ps((const __m128*)(const void*)(from + 4)); + // mimic an "inplace" permutation of the lower 128bits using a blend + lane1 = _mm256_blend_ps( + lane1, _mm256_castps128_ps256(_mm_permute_ps( + _mm256_castps256_ps128(lane1), _MM_SHUFFLE(1, 0, 1, 0))), + 15); + // then we can perform a consistent permutation on the global register to get + // everything in shape: + lane1 = _mm256_permute_ps(lane1, _MM_SHUFFLE(3, 3, 2, 2)); + +#ifdef EIGEN_VECTORIZE_AVX512DQ + Packet16f res = _mm512_undefined_ps(); + return _mm512_insertf32x8(res, lane0, 0); + return _mm512_insertf32x8(res, lane1, 1); + return res; +#else + Packet16f res = _mm512_undefined_ps(); + res = _mm512_insertf32x4(res, _mm256_extractf128_ps(lane0, 0), 0); + res = _mm512_insertf32x4(res, _mm256_extractf128_ps(lane0, 1), 1); + res = _mm512_insertf32x4(res, _mm256_extractf128_ps(lane1, 0), 2); + res = _mm512_insertf32x4(res, _mm256_extractf128_ps(lane1, 1), 3); + return res; +#endif +} +// Loads 4 doubles from memory a returns the packet {a0, a0 a1, a1, a2, a2, a3, +// a3} +template <> +EIGEN_STRONG_INLINE Packet8d ploaddup<Packet8d>(const double* from) { + Packet4d lane0 = _mm256_broadcast_pd((const __m128d*)(const void*)from); + lane0 = _mm256_permute_pd(lane0, 3 << 2); + + Packet4d lane1 = _mm256_broadcast_pd((const __m128d*)(const void*)(from + 2)); + lane1 = _mm256_permute_pd(lane1, 3 << 2); + + Packet8d res = _mm512_undefined_pd(); + res = _mm512_insertf64x4(res, lane0, 0); + return _mm512_insertf64x4(res, lane1, 1); +} + +// Loads 4 floats from memory a returns the packet +// {a0, a0 a0, a0, a1, a1, a1, a1, a2, a2, a2, a2, a3, a3, a3, a3} +template <> +EIGEN_STRONG_INLINE Packet16f ploadquad<Packet16f>(const float* from) { + Packet16f tmp = _mm512_undefined_ps(); + tmp = _mm512_insertf32x4(tmp, _mm_load_ps1(from), 0); + tmp = _mm512_insertf32x4(tmp, _mm_load_ps1(from + 1), 1); + tmp = _mm512_insertf32x4(tmp, _mm_load_ps1(from + 2), 2); + tmp = _mm512_insertf32x4(tmp, _mm_load_ps1(from + 3), 3); + return tmp; +} +// Loads 2 doubles from memory a returns the packet +// {a0, a0 a0, a0, a1, a1, a1, a1} +template <> +EIGEN_STRONG_INLINE Packet8d ploadquad<Packet8d>(const double* from) { + Packet8d tmp = _mm512_undefined_pd(); + Packet2d tmp0 = _mm_load_pd1(from); + Packet2d tmp1 = _mm_load_pd1(from + 1); + Packet4d lane0 = _mm256_broadcastsd_pd(tmp0); + Packet4d lane1 = _mm256_broadcastsd_pd(tmp1); + tmp = _mm512_insertf64x4(tmp, lane0, 0); + return _mm512_insertf64x4(tmp, lane1, 1); +} + +template <> +EIGEN_STRONG_INLINE void pstore<float>(float* to, const Packet16f& from) { + EIGEN_DEBUG_ALIGNED_STORE _mm512_store_ps(to, from); +} +template <> +EIGEN_STRONG_INLINE void pstore<double>(double* to, const Packet8d& from) { + EIGEN_DEBUG_ALIGNED_STORE _mm512_store_pd(to, from); +} +template <> +EIGEN_STRONG_INLINE void pstore<int>(int* to, const Packet16i& from) { + EIGEN_DEBUG_ALIGNED_STORE _mm512_storeu_si512(reinterpret_cast<__m512i*>(to), + from); +} + +template <> +EIGEN_STRONG_INLINE void pstoreu<float>(float* to, const Packet16f& from) { + EIGEN_DEBUG_UNALIGNED_STORE _mm512_storeu_ps(to, from); +} +template <> +EIGEN_STRONG_INLINE void pstoreu<double>(double* to, const Packet8d& from) { + EIGEN_DEBUG_UNALIGNED_STORE _mm512_storeu_pd(to, from); +} +template <> +EIGEN_STRONG_INLINE void pstoreu<int>(int* to, const Packet16i& from) { + EIGEN_DEBUG_UNALIGNED_STORE _mm512_storeu_si512( + reinterpret_cast<__m512i*>(to), from); +} + +template <> +EIGEN_DEVICE_FUNC inline Packet16f pgather<float, Packet16f>(const float* from, + Index stride) { + Packet16i stride_vector = _mm512_set1_epi32(stride); + Packet16i stride_multiplier = + _mm512_set_epi32(15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0); + Packet16i indices = _mm512_mullo_epi32(stride_vector, stride_multiplier); + + return _mm512_i32gather_ps(indices, from, 4); +} +template <> +EIGEN_DEVICE_FUNC inline Packet8d pgather<double, Packet8d>(const double* from, + Index stride) { + Packet8i stride_vector = _mm256_set1_epi32(stride); + Packet8i stride_multiplier = _mm256_set_epi32(7, 6, 5, 4, 3, 2, 1, 0); + Packet8i indices = _mm256_mullo_epi32(stride_vector, stride_multiplier); + + return _mm512_i32gather_pd(indices, from, 8); +} + +template <> +EIGEN_DEVICE_FUNC inline void pscatter<float, Packet16f>(float* to, + const Packet16f& from, + Index stride) { + Packet16i stride_vector = _mm512_set1_epi32(stride); + Packet16i stride_multiplier = + _mm512_set_epi32(15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0); + Packet16i indices = _mm512_mullo_epi32(stride_vector, stride_multiplier); + _mm512_i32scatter_ps(to, indices, from, 4); +} +template <> +EIGEN_DEVICE_FUNC inline void pscatter<double, Packet8d>(double* to, + const Packet8d& from, + Index stride) { + Packet8i stride_vector = _mm256_set1_epi32(stride); + Packet8i stride_multiplier = _mm256_set_epi32(7, 6, 5, 4, 3, 2, 1, 0); + Packet8i indices = _mm256_mullo_epi32(stride_vector, stride_multiplier); + _mm512_i32scatter_pd(to, indices, from, 8); +} + +template <> +EIGEN_STRONG_INLINE void pstore1<Packet16f>(float* to, const float& a) { + Packet16f pa = pset1<Packet16f>(a); + pstore(to, pa); +} +template <> +EIGEN_STRONG_INLINE void pstore1<Packet8d>(double* to, const double& a) { + Packet8d pa = pset1<Packet8d>(a); + pstore(to, pa); +} +template <> +EIGEN_STRONG_INLINE void pstore1<Packet16i>(int* to, const int& a) { + Packet16i pa = pset1<Packet16i>(a); + pstore(to, pa); +} + +template<> EIGEN_STRONG_INLINE void prefetch<float>(const float* addr) { _mm_prefetch((const char*)(addr), _MM_HINT_T0); } +template<> EIGEN_STRONG_INLINE void prefetch<double>(const double* addr) { _mm_prefetch((const char*)(addr), _MM_HINT_T0); } +template<> EIGEN_STRONG_INLINE void prefetch<int>(const int* addr) { _mm_prefetch((const char*)(addr), _MM_HINT_T0); } + +template <> +EIGEN_STRONG_INLINE float pfirst<Packet16f>(const Packet16f& a) { + return _mm_cvtss_f32(_mm512_extractf32x4_ps(a, 0)); +} +template <> +EIGEN_STRONG_INLINE double pfirst<Packet8d>(const Packet8d& a) { + return _mm_cvtsd_f64(_mm256_extractf128_pd(_mm512_extractf64x4_pd(a, 0), 0)); +} +template <> +EIGEN_STRONG_INLINE int pfirst<Packet16i>(const Packet16i& a) { + return _mm_extract_epi32(_mm512_extracti32x4_epi32(a, 0), 0); +} + +template<> EIGEN_STRONG_INLINE Packet16f preverse(const Packet16f& a) +{ + return _mm512_permutexvar_ps(_mm512_set_epi32(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15), a); +} + +template<> EIGEN_STRONG_INLINE Packet8d preverse(const Packet8d& a) +{ + return _mm512_permutexvar_pd(_mm512_set_epi32(0, 0, 0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 7), a); +} + +template<> EIGEN_STRONG_INLINE Packet16f pabs(const Packet16f& a) +{ + // _mm512_abs_ps intrinsic not found, so hack around it + return (__m512)_mm512_and_si512((__m512i)a, _mm512_set1_epi32(0x7fffffff)); +} +template <> +EIGEN_STRONG_INLINE Packet8d pabs(const Packet8d& a) { + // _mm512_abs_ps intrinsic not found, so hack around it + return (__m512d)_mm512_and_si512((__m512i)a, + _mm512_set1_epi64(0x7fffffffffffffff)); +} + +#ifdef EIGEN_VECTORIZE_AVX512DQ +// AVX512F does not define _mm512_extractf32x8_ps to extract _m256 from _m512 +#define EIGEN_EXTRACT_8f_FROM_16f(INPUT, OUTPUT) \ + __m256 OUTPUT##_0 = _mm512_extractf32x8_ps(INPUT, 0) __m256 OUTPUT##_1 = \ + _mm512_extractf32x8_ps(INPUT, 1) +#else +#define EIGEN_EXTRACT_8f_FROM_16f(INPUT, OUTPUT) \ + __m256 OUTPUT##_0 = _mm256_insertf128_ps( \ + _mm256_castps128_ps256(_mm512_extractf32x4_ps(INPUT, 0)), \ + _mm512_extractf32x4_ps(INPUT, 1), 1); \ + __m256 OUTPUT##_1 = _mm256_insertf128_ps( \ + _mm256_castps128_ps256(_mm512_extractf32x4_ps(INPUT, 2)), \ + _mm512_extractf32x4_ps(INPUT, 3), 1); +#endif + +#ifdef EIGEN_VECTORIZE_AVX512DQ +#define EIGEN_INSERT_8f_INTO_16f(OUTPUT, INPUTA, INPUTB) \ + OUTPUT = _mm512_insertf32x8(OUTPUT, INPUTA, 0); \ + OUTPUT = _mm512_insertf32x8(OUTPUT, INPUTB, 1); +#else +#define EIGEN_INSERT_8f_INTO_16f(OUTPUT, INPUTA, INPUTB) \ + OUTPUT = _mm512_insertf32x4(OUTPUT, _mm256_extractf128_ps(INPUTA, 0), 0); \ + OUTPUT = _mm512_insertf32x4(OUTPUT, _mm256_extractf128_ps(INPUTA, 1), 1); \ + OUTPUT = _mm512_insertf32x4(OUTPUT, _mm256_extractf128_ps(INPUTB, 0), 2); \ + OUTPUT = _mm512_insertf32x4(OUTPUT, _mm256_extractf128_ps(INPUTB, 1), 3); +#endif +template<> EIGEN_STRONG_INLINE Packet16f preduxp<Packet16f>(const Packet16f* +vecs) +{ + EIGEN_EXTRACT_8f_FROM_16f(vecs[0], vecs0); + EIGEN_EXTRACT_8f_FROM_16f(vecs[1], vecs1); + EIGEN_EXTRACT_8f_FROM_16f(vecs[2], vecs2); + EIGEN_EXTRACT_8f_FROM_16f(vecs[3], vecs3); + EIGEN_EXTRACT_8f_FROM_16f(vecs[4], vecs4); + EIGEN_EXTRACT_8f_FROM_16f(vecs[5], vecs5); + EIGEN_EXTRACT_8f_FROM_16f(vecs[6], vecs6); + EIGEN_EXTRACT_8f_FROM_16f(vecs[7], vecs7); + EIGEN_EXTRACT_8f_FROM_16f(vecs[8], vecs8); + EIGEN_EXTRACT_8f_FROM_16f(vecs[9], vecs9); + EIGEN_EXTRACT_8f_FROM_16f(vecs[10], vecs10); + EIGEN_EXTRACT_8f_FROM_16f(vecs[11], vecs11); + EIGEN_EXTRACT_8f_FROM_16f(vecs[12], vecs12); + EIGEN_EXTRACT_8f_FROM_16f(vecs[13], vecs13); + EIGEN_EXTRACT_8f_FROM_16f(vecs[14], vecs14); + EIGEN_EXTRACT_8f_FROM_16f(vecs[15], vecs15); + + __m256 hsum1 = _mm256_hadd_ps(vecs0_0, vecs1_0); + __m256 hsum2 = _mm256_hadd_ps(vecs2_0, vecs3_0); + __m256 hsum3 = _mm256_hadd_ps(vecs4_0, vecs5_0); + __m256 hsum4 = _mm256_hadd_ps(vecs6_0, vecs7_0); + + __m256 hsum5 = _mm256_hadd_ps(hsum1, hsum1); + __m256 hsum6 = _mm256_hadd_ps(hsum2, hsum2); + __m256 hsum7 = _mm256_hadd_ps(hsum3, hsum3); + __m256 hsum8 = _mm256_hadd_ps(hsum4, hsum4); + + __m256 perm1 = _mm256_permute2f128_ps(hsum5, hsum5, 0x23); + __m256 perm2 = _mm256_permute2f128_ps(hsum6, hsum6, 0x23); + __m256 perm3 = _mm256_permute2f128_ps(hsum7, hsum7, 0x23); + __m256 perm4 = _mm256_permute2f128_ps(hsum8, hsum8, 0x23); + + __m256 sum1 = _mm256_add_ps(perm1, hsum5); + __m256 sum2 = _mm256_add_ps(perm2, hsum6); + __m256 sum3 = _mm256_add_ps(perm3, hsum7); + __m256 sum4 = _mm256_add_ps(perm4, hsum8); + + __m256 blend1 = _mm256_blend_ps(sum1, sum2, 0xcc); + __m256 blend2 = _mm256_blend_ps(sum3, sum4, 0xcc); + + __m256 final = _mm256_blend_ps(blend1, blend2, 0xf0); + + hsum1 = _mm256_hadd_ps(vecs0_1, vecs1_1); + hsum2 = _mm256_hadd_ps(vecs2_1, vecs3_1); + hsum3 = _mm256_hadd_ps(vecs4_1, vecs5_1); + hsum4 = _mm256_hadd_ps(vecs6_1, vecs7_1); + + hsum5 = _mm256_hadd_ps(hsum1, hsum1); + hsum6 = _mm256_hadd_ps(hsum2, hsum2); + hsum7 = _mm256_hadd_ps(hsum3, hsum3); + hsum8 = _mm256_hadd_ps(hsum4, hsum4); + + perm1 = _mm256_permute2f128_ps(hsum5, hsum5, 0x23); + perm2 = _mm256_permute2f128_ps(hsum6, hsum6, 0x23); + perm3 = _mm256_permute2f128_ps(hsum7, hsum7, 0x23); + perm4 = _mm256_permute2f128_ps(hsum8, hsum8, 0x23); + + sum1 = _mm256_add_ps(perm1, hsum5); + sum2 = _mm256_add_ps(perm2, hsum6); + sum3 = _mm256_add_ps(perm3, hsum7); + sum4 = _mm256_add_ps(perm4, hsum8); + + blend1 = _mm256_blend_ps(sum1, sum2, 0xcc); + blend2 = _mm256_blend_ps(sum3, sum4, 0xcc); + + final = padd(final, _mm256_blend_ps(blend1, blend2, 0xf0)); + + hsum1 = _mm256_hadd_ps(vecs8_0, vecs9_0); + hsum2 = _mm256_hadd_ps(vecs10_0, vecs11_0); + hsum3 = _mm256_hadd_ps(vecs12_0, vecs13_0); + hsum4 = _mm256_hadd_ps(vecs14_0, vecs15_0); + + hsum5 = _mm256_hadd_ps(hsum1, hsum1); + hsum6 = _mm256_hadd_ps(hsum2, hsum2); + hsum7 = _mm256_hadd_ps(hsum3, hsum3); + hsum8 = _mm256_hadd_ps(hsum4, hsum4); + + perm1 = _mm256_permute2f128_ps(hsum5, hsum5, 0x23); + perm2 = _mm256_permute2f128_ps(hsum6, hsum6, 0x23); + perm3 = _mm256_permute2f128_ps(hsum7, hsum7, 0x23); + perm4 = _mm256_permute2f128_ps(hsum8, hsum8, 0x23); + + sum1 = _mm256_add_ps(perm1, hsum5); + sum2 = _mm256_add_ps(perm2, hsum6); + sum3 = _mm256_add_ps(perm3, hsum7); + sum4 = _mm256_add_ps(perm4, hsum8); + + blend1 = _mm256_blend_ps(sum1, sum2, 0xcc); + blend2 = _mm256_blend_ps(sum3, sum4, 0xcc); + + __m256 final_1 = _mm256_blend_ps(blend1, blend2, 0xf0); + + hsum1 = _mm256_hadd_ps(vecs8_1, vecs9_1); + hsum2 = _mm256_hadd_ps(vecs10_1, vecs11_1); + hsum3 = _mm256_hadd_ps(vecs12_1, vecs13_1); + hsum4 = _mm256_hadd_ps(vecs14_1, vecs15_1); + + hsum5 = _mm256_hadd_ps(hsum1, hsum1); + hsum6 = _mm256_hadd_ps(hsum2, hsum2); + hsum7 = _mm256_hadd_ps(hsum3, hsum3); + hsum8 = _mm256_hadd_ps(hsum4, hsum4); + + perm1 = _mm256_permute2f128_ps(hsum5, hsum5, 0x23); + perm2 = _mm256_permute2f128_ps(hsum6, hsum6, 0x23); + perm3 = _mm256_permute2f128_ps(hsum7, hsum7, 0x23); + perm4 = _mm256_permute2f128_ps(hsum8, hsum8, 0x23); + + sum1 = _mm256_add_ps(perm1, hsum5); + sum2 = _mm256_add_ps(perm2, hsum6); + sum3 = _mm256_add_ps(perm3, hsum7); + sum4 = _mm256_add_ps(perm4, hsum8); + + blend1 = _mm256_blend_ps(sum1, sum2, 0xcc); + blend2 = _mm256_blend_ps(sum3, sum4, 0xcc); + + final_1 = padd(final_1, _mm256_blend_ps(blend1, blend2, 0xf0)); + + __m512 final_output; + + EIGEN_INSERT_8f_INTO_16f(final_output, final, final_1); + return final_output; +} + +template<> EIGEN_STRONG_INLINE Packet8d preduxp<Packet8d>(const Packet8d* vecs) +{ + Packet4d vecs0_0 = _mm512_extractf64x4_pd(vecs[0], 0); + Packet4d vecs0_1 = _mm512_extractf64x4_pd(vecs[0], 1); + + Packet4d vecs1_0 = _mm512_extractf64x4_pd(vecs[1], 0); + Packet4d vecs1_1 = _mm512_extractf64x4_pd(vecs[1], 1); + + Packet4d vecs2_0 = _mm512_extractf64x4_pd(vecs[2], 0); + Packet4d vecs2_1 = _mm512_extractf64x4_pd(vecs[2], 1); + + Packet4d vecs3_0 = _mm512_extractf64x4_pd(vecs[3], 0); + Packet4d vecs3_1 = _mm512_extractf64x4_pd(vecs[3], 1); + + Packet4d vecs4_0 = _mm512_extractf64x4_pd(vecs[4], 0); + Packet4d vecs4_1 = _mm512_extractf64x4_pd(vecs[4], 1); + + Packet4d vecs5_0 = _mm512_extractf64x4_pd(vecs[5], 0); + Packet4d vecs5_1 = _mm512_extractf64x4_pd(vecs[5], 1); + + Packet4d vecs6_0 = _mm512_extractf64x4_pd(vecs[6], 0); + Packet4d vecs6_1 = _mm512_extractf64x4_pd(vecs[6], 1); + + Packet4d vecs7_0 = _mm512_extractf64x4_pd(vecs[7], 0); + Packet4d vecs7_1 = _mm512_extractf64x4_pd(vecs[7], 1); + + Packet4d tmp0, tmp1; + + tmp0 = _mm256_hadd_pd(vecs0_0, vecs1_0); + tmp0 = _mm256_add_pd(tmp0, _mm256_permute2f128_pd(tmp0, tmp0, 1)); + + tmp1 = _mm256_hadd_pd(vecs2_0, vecs3_0); + tmp1 = _mm256_add_pd(tmp1, _mm256_permute2f128_pd(tmp1, tmp1, 1)); + + __m256d final_0 = _mm256_blend_pd(tmp0, tmp1, 0xC); + + tmp0 = _mm256_hadd_pd(vecs0_1, vecs1_1); + tmp0 = _mm256_add_pd(tmp0, _mm256_permute2f128_pd(tmp0, tmp0, 1)); + + tmp1 = _mm256_hadd_pd(vecs2_1, vecs3_1); + tmp1 = _mm256_add_pd(tmp1, _mm256_permute2f128_pd(tmp1, tmp1, 1)); + + final_0 = padd(final_0, _mm256_blend_pd(tmp0, tmp1, 0xC)); + + tmp0 = _mm256_hadd_pd(vecs4_0, vecs5_0); + tmp0 = _mm256_add_pd(tmp0, _mm256_permute2f128_pd(tmp0, tmp0, 1)); + + tmp1 = _mm256_hadd_pd(vecs6_0, vecs7_0); + tmp1 = _mm256_add_pd(tmp1, _mm256_permute2f128_pd(tmp1, tmp1, 1)); + + __m256d final_1 = _mm256_blend_pd(tmp0, tmp1, 0xC); + + tmp0 = _mm256_hadd_pd(vecs4_1, vecs5_1); + tmp0 = _mm256_add_pd(tmp0, _mm256_permute2f128_pd(tmp0, tmp0, 1)); + + tmp1 = _mm256_hadd_pd(vecs6_1, vecs7_1); + tmp1 = _mm256_add_pd(tmp1, _mm256_permute2f128_pd(tmp1, tmp1, 1)); + + final_1 = padd(final_1, _mm256_blend_pd(tmp0, tmp1, 0xC)); + + __m512d final_output = _mm512_insertf64x4(final_output, final_0, 0); + + return _mm512_insertf64x4(final_output, final_1, 1); +} + +template <> +EIGEN_STRONG_INLINE float predux<Packet16f>(const Packet16f& a) { + //#ifdef EIGEN_VECTORIZE_AVX512DQ +#if 0 + Packet8f lane0 = _mm512_extractf32x8_ps(a, 0); + Packet8f lane1 = _mm512_extractf32x8_ps(a, 1); + Packet8f sum = padd(lane0, lane1); + Packet8f tmp0 = _mm256_hadd_ps(sum, _mm256_permute2f128_ps(a, a, 1)); + tmp0 = _mm256_hadd_ps(tmp0, tmp0); + return pfirst(_mm256_hadd_ps(tmp0, tmp0)); +#else + Packet4f lane0 = _mm512_extractf32x4_ps(a, 0); + Packet4f lane1 = _mm512_extractf32x4_ps(a, 1); + Packet4f lane2 = _mm512_extractf32x4_ps(a, 2); + Packet4f lane3 = _mm512_extractf32x4_ps(a, 3); + Packet4f sum = padd(padd(lane0, lane1), padd(lane2, lane3)); + sum = _mm_hadd_ps(sum, sum); + sum = _mm_hadd_ps(sum, _mm_permute_ps(sum, 1)); + return pfirst(sum); +#endif +} +template <> +EIGEN_STRONG_INLINE double predux<Packet8d>(const Packet8d& a) { + Packet4d lane0 = _mm512_extractf64x4_pd(a, 0); + Packet4d lane1 = _mm512_extractf64x4_pd(a, 1); + Packet4d sum = padd(lane0, lane1); + Packet4d tmp0 = _mm256_hadd_pd(sum, _mm256_permute2f128_pd(sum, sum, 1)); + return pfirst(_mm256_hadd_pd(tmp0, tmp0)); +} + +template <> +EIGEN_STRONG_INLINE Packet8f predux_downto4<Packet16f>(const Packet16f& a) { +#ifdef EIGEN_VECTORIZE_AVX512DQ + Packet8f lane0 = _mm512_extractf32x8_ps(a, 0); + Packet8f lane1 = _mm512_extractf32x8_ps(a, 1); + return padd(lane0, lane1); +#else + Packet4f lane0 = _mm512_extractf32x4_ps(a, 0); + Packet4f lane1 = _mm512_extractf32x4_ps(a, 1); + Packet4f lane2 = _mm512_extractf32x4_ps(a, 2); + Packet4f lane3 = _mm512_extractf32x4_ps(a, 3); + Packet4f sum0 = padd(lane0, lane2); + Packet4f sum1 = padd(lane1, lane3); + return _mm256_insertf128_ps(_mm256_castps128_ps256(sum0), sum1, 1); +#endif +} +template <> +EIGEN_STRONG_INLINE Packet4d predux_downto4<Packet8d>(const Packet8d& a) { + Packet4d lane0 = _mm512_extractf64x4_pd(a, 0); + Packet4d lane1 = _mm512_extractf64x4_pd(a, 1); + Packet4d res = padd(lane0, lane1); + return res; +} + +template <> +EIGEN_STRONG_INLINE float predux_mul<Packet16f>(const Packet16f& a) { +//#ifdef EIGEN_VECTORIZE_AVX512DQ +#if 0 + Packet8f lane0 = _mm512_extractf32x8_ps(a, 0); + Packet8f lane1 = _mm512_extractf32x8_ps(a, 1); + Packet8f res = pmul(lane0, lane1); + res = pmul(res, _mm256_permute2f128_ps(res, res, 1)); + res = pmul(res, _mm_permute_ps(res, _MM_SHUFFLE(0, 0, 3, 2))); + return pfirst(pmul(res, _mm_permute_ps(res, _MM_SHUFFLE(0, 0, 0, 1)))); +#else + Packet4f lane0 = _mm512_extractf32x4_ps(a, 0); + Packet4f lane1 = _mm512_extractf32x4_ps(a, 1); + Packet4f lane2 = _mm512_extractf32x4_ps(a, 2); + Packet4f lane3 = _mm512_extractf32x4_ps(a, 3); + Packet4f res = pmul(pmul(lane0, lane1), pmul(lane2, lane3)); + res = pmul(res, _mm_permute_ps(res, _MM_SHUFFLE(0, 0, 3, 2))); + return pfirst(pmul(res, _mm_permute_ps(res, _MM_SHUFFLE(0, 0, 0, 1)))); +#endif +} +template <> +EIGEN_STRONG_INLINE double predux_mul<Packet8d>(const Packet8d& a) { + Packet4d lane0 = _mm512_extractf64x4_pd(a, 0); + Packet4d lane1 = _mm512_extractf64x4_pd(a, 1); + Packet4d res = pmul(lane0, lane1); + res = pmul(res, _mm256_permute2f128_pd(res, res, 1)); + return pfirst(pmul(res, _mm256_shuffle_pd(res, res, 1))); +} + +template <> +EIGEN_STRONG_INLINE float predux_min<Packet16f>(const Packet16f& a) { + Packet4f lane0 = _mm512_extractf32x4_ps(a, 0); + Packet4f lane1 = _mm512_extractf32x4_ps(a, 1); + Packet4f lane2 = _mm512_extractf32x4_ps(a, 2); + Packet4f lane3 = _mm512_extractf32x4_ps(a, 3); + Packet4f res = _mm_min_ps(_mm_min_ps(lane0, lane1), _mm_min_ps(lane2, lane3)); + res = _mm_min_ps(res, _mm_permute_ps(res, _MM_SHUFFLE(0, 0, 3, 2))); + return pfirst(_mm_min_ps(res, _mm_permute_ps(res, _MM_SHUFFLE(0, 0, 0, 1)))); +} +template <> +EIGEN_STRONG_INLINE double predux_min<Packet8d>(const Packet8d& a) { + Packet4d lane0 = _mm512_extractf64x4_pd(a, 0); + Packet4d lane1 = _mm512_extractf64x4_pd(a, 1); + Packet4d res = _mm256_min_pd(lane0, lane1); + res = _mm256_min_pd(res, _mm256_permute2f128_pd(res, res, 1)); + return pfirst(_mm256_min_pd(res, _mm256_shuffle_pd(res, res, 1))); +} + +template <> +EIGEN_STRONG_INLINE float predux_max<Packet16f>(const Packet16f& a) { + Packet4f lane0 = _mm512_extractf32x4_ps(a, 0); + Packet4f lane1 = _mm512_extractf32x4_ps(a, 1); + Packet4f lane2 = _mm512_extractf32x4_ps(a, 2); + Packet4f lane3 = _mm512_extractf32x4_ps(a, 3); + Packet4f res = _mm_max_ps(_mm_max_ps(lane0, lane1), _mm_max_ps(lane2, lane3)); + res = _mm_max_ps(res, _mm_permute_ps(res, _MM_SHUFFLE(0, 0, 3, 2))); + return pfirst(_mm_max_ps(res, _mm_permute_ps(res, _MM_SHUFFLE(0, 0, 0, 1)))); +} +template <> +EIGEN_STRONG_INLINE double predux_max<Packet8d>(const Packet8d& a) { + Packet4d lane0 = _mm512_extractf64x4_pd(a, 0); + Packet4d lane1 = _mm512_extractf64x4_pd(a, 1); + Packet4d res = _mm256_max_pd(lane0, lane1); + res = _mm256_max_pd(res, _mm256_permute2f128_pd(res, res, 1)); + return pfirst(_mm256_max_pd(res, _mm256_shuffle_pd(res, res, 1))); +} + +template <int Offset> +struct palign_impl<Offset, Packet16f> { + static EIGEN_STRONG_INLINE void run(Packet16f& first, + const Packet16f& second) { + if (Offset != 0) { + __m512i first_idx = _mm512_set_epi32( + Offset + 15, Offset + 14, Offset + 13, Offset + 12, Offset + 11, + Offset + 10, Offset + 9, Offset + 8, Offset + 7, Offset + 6, + Offset + 5, Offset + 4, Offset + 3, Offset + 2, Offset + 1, Offset); + + __m512i second_idx = + _mm512_set_epi32(Offset - 1, Offset - 2, Offset - 3, Offset - 4, + Offset - 5, Offset - 6, Offset - 7, Offset - 8, + Offset - 9, Offset - 10, Offset - 11, Offset - 12, + Offset - 13, Offset - 14, Offset - 15, Offset - 16); + + unsigned short mask = 0xFFFF; + mask <<= (16 - Offset); + + first = _mm512_permutexvar_ps(first_idx, first); + Packet16f tmp = _mm512_permutexvar_ps(second_idx, second); + first = _mm512_mask_blend_ps(mask, first, tmp); + } + } +}; +template <int Offset> +struct palign_impl<Offset, Packet8d> { + static EIGEN_STRONG_INLINE void run(Packet8d& first, const Packet8d& second) { + if (Offset != 0) { + __m512i first_idx = _mm512_set_epi32( + 0, Offset + 7, 0, Offset + 6, 0, Offset + 5, 0, Offset + 4, 0, + Offset + 3, 0, Offset + 2, 0, Offset + 1, 0, Offset); + + __m512i second_idx = _mm512_set_epi32( + 0, Offset - 1, 0, Offset - 2, 0, Offset - 3, 0, Offset - 4, 0, + Offset - 5, 0, Offset - 6, 0, Offset - 7, 0, Offset - 8); + + unsigned char mask = 0xFF; + mask <<= (8 - Offset); + + first = _mm512_permutexvar_pd(first_idx, first); + Packet8d tmp = _mm512_permutexvar_pd(second_idx, second); + first = _mm512_mask_blend_pd(mask, first, tmp); + } + } +}; + + +#define PACK_OUTPUT(OUTPUT, INPUT, INDEX, STRIDE) \ + EIGEN_INSERT_8f_INTO_16f(OUTPUT[INDEX], INPUT[INDEX], INPUT[INDEX + STRIDE]); + +EIGEN_DEVICE_FUNC inline void ptranspose(PacketBlock<Packet16f, 16>& kernel) { + __m512 T0 = _mm512_unpacklo_ps(kernel.packet[0], kernel.packet[1]); + __m512 T1 = _mm512_unpackhi_ps(kernel.packet[0], kernel.packet[1]); + __m512 T2 = _mm512_unpacklo_ps(kernel.packet[2], kernel.packet[3]); + __m512 T3 = _mm512_unpackhi_ps(kernel.packet[2], kernel.packet[3]); + __m512 T4 = _mm512_unpacklo_ps(kernel.packet[4], kernel.packet[5]); + __m512 T5 = _mm512_unpackhi_ps(kernel.packet[4], kernel.packet[5]); + __m512 T6 = _mm512_unpacklo_ps(kernel.packet[6], kernel.packet[7]); + __m512 T7 = _mm512_unpackhi_ps(kernel.packet[6], kernel.packet[7]); + __m512 T8 = _mm512_unpacklo_ps(kernel.packet[8], kernel.packet[9]); + __m512 T9 = _mm512_unpackhi_ps(kernel.packet[8], kernel.packet[9]); + __m512 T10 = _mm512_unpacklo_ps(kernel.packet[10], kernel.packet[11]); + __m512 T11 = _mm512_unpackhi_ps(kernel.packet[10], kernel.packet[11]); + __m512 T12 = _mm512_unpacklo_ps(kernel.packet[12], kernel.packet[13]); + __m512 T13 = _mm512_unpackhi_ps(kernel.packet[12], kernel.packet[13]); + __m512 T14 = _mm512_unpacklo_ps(kernel.packet[14], kernel.packet[15]); + __m512 T15 = _mm512_unpackhi_ps(kernel.packet[14], kernel.packet[15]); + __m512 S0 = _mm512_shuffle_ps(T0, T2, _MM_SHUFFLE(1, 0, 1, 0)); + __m512 S1 = _mm512_shuffle_ps(T0, T2, _MM_SHUFFLE(3, 2, 3, 2)); + __m512 S2 = _mm512_shuffle_ps(T1, T3, _MM_SHUFFLE(1, 0, 1, 0)); + __m512 S3 = _mm512_shuffle_ps(T1, T3, _MM_SHUFFLE(3, 2, 3, 2)); + __m512 S4 = _mm512_shuffle_ps(T4, T6, _MM_SHUFFLE(1, 0, 1, 0)); + __m512 S5 = _mm512_shuffle_ps(T4, T6, _MM_SHUFFLE(3, 2, 3, 2)); + __m512 S6 = _mm512_shuffle_ps(T5, T7, _MM_SHUFFLE(1, 0, 1, 0)); + __m512 S7 = _mm512_shuffle_ps(T5, T7, _MM_SHUFFLE(3, 2, 3, 2)); + __m512 S8 = _mm512_shuffle_ps(T8, T10, _MM_SHUFFLE(1, 0, 1, 0)); + __m512 S9 = _mm512_shuffle_ps(T8, T10, _MM_SHUFFLE(3, 2, 3, 2)); + __m512 S10 = _mm512_shuffle_ps(T9, T11, _MM_SHUFFLE(1, 0, 1, 0)); + __m512 S11 = _mm512_shuffle_ps(T9, T11, _MM_SHUFFLE(3, 2, 3, 2)); + __m512 S12 = _mm512_shuffle_ps(T12, T14, _MM_SHUFFLE(1, 0, 1, 0)); + __m512 S13 = _mm512_shuffle_ps(T12, T14, _MM_SHUFFLE(3, 2, 3, 2)); + __m512 S14 = _mm512_shuffle_ps(T13, T15, _MM_SHUFFLE(1, 0, 1, 0)); + __m512 S15 = _mm512_shuffle_ps(T13, T15, _MM_SHUFFLE(3, 2, 3, 2)); + + EIGEN_EXTRACT_8f_FROM_16f(S0, S0); + EIGEN_EXTRACT_8f_FROM_16f(S1, S1); + EIGEN_EXTRACT_8f_FROM_16f(S2, S2); + EIGEN_EXTRACT_8f_FROM_16f(S3, S3); + EIGEN_EXTRACT_8f_FROM_16f(S4, S4); + EIGEN_EXTRACT_8f_FROM_16f(S5, S5); + EIGEN_EXTRACT_8f_FROM_16f(S6, S6); + EIGEN_EXTRACT_8f_FROM_16f(S7, S7); + EIGEN_EXTRACT_8f_FROM_16f(S8, S8); + EIGEN_EXTRACT_8f_FROM_16f(S9, S9); + EIGEN_EXTRACT_8f_FROM_16f(S10, S10); + EIGEN_EXTRACT_8f_FROM_16f(S11, S11); + EIGEN_EXTRACT_8f_FROM_16f(S12, S12); + EIGEN_EXTRACT_8f_FROM_16f(S13, S13); + EIGEN_EXTRACT_8f_FROM_16f(S14, S14); + EIGEN_EXTRACT_8f_FROM_16f(S15, S15); + + PacketBlock<Packet8f, 32> tmp; + + tmp.packet[0] = _mm256_permute2f128_ps(S0_0, S4_0, 0x20); + tmp.packet[1] = _mm256_permute2f128_ps(S1_0, S5_0, 0x20); + tmp.packet[2] = _mm256_permute2f128_ps(S2_0, S6_0, 0x20); + tmp.packet[3] = _mm256_permute2f128_ps(S3_0, S7_0, 0x20); + tmp.packet[4] = _mm256_permute2f128_ps(S0_0, S4_0, 0x31); + tmp.packet[5] = _mm256_permute2f128_ps(S1_0, S5_0, 0x31); + tmp.packet[6] = _mm256_permute2f128_ps(S2_0, S6_0, 0x31); + tmp.packet[7] = _mm256_permute2f128_ps(S3_0, S7_0, 0x31); + + tmp.packet[8] = _mm256_permute2f128_ps(S0_1, S4_1, 0x20); + tmp.packet[9] = _mm256_permute2f128_ps(S1_1, S5_1, 0x20); + tmp.packet[10] = _mm256_permute2f128_ps(S2_1, S6_1, 0x20); + tmp.packet[11] = _mm256_permute2f128_ps(S3_1, S7_1, 0x20); + tmp.packet[12] = _mm256_permute2f128_ps(S0_1, S4_1, 0x31); + tmp.packet[13] = _mm256_permute2f128_ps(S1_1, S5_1, 0x31); + tmp.packet[14] = _mm256_permute2f128_ps(S2_1, S6_1, 0x31); + tmp.packet[15] = _mm256_permute2f128_ps(S3_1, S7_1, 0x31); + + // Second set of _m256 outputs + tmp.packet[16] = _mm256_permute2f128_ps(S8_0, S12_0, 0x20); + tmp.packet[17] = _mm256_permute2f128_ps(S9_0, S13_0, 0x20); + tmp.packet[18] = _mm256_permute2f128_ps(S10_0, S14_0, 0x20); + tmp.packet[19] = _mm256_permute2f128_ps(S11_0, S15_0, 0x20); + tmp.packet[20] = _mm256_permute2f128_ps(S8_0, S12_0, 0x31); + tmp.packet[21] = _mm256_permute2f128_ps(S9_0, S13_0, 0x31); + tmp.packet[22] = _mm256_permute2f128_ps(S10_0, S14_0, 0x31); + tmp.packet[23] = _mm256_permute2f128_ps(S11_0, S15_0, 0x31); + + tmp.packet[24] = _mm256_permute2f128_ps(S8_1, S12_1, 0x20); + tmp.packet[25] = _mm256_permute2f128_ps(S9_1, S13_1, 0x20); + tmp.packet[26] = _mm256_permute2f128_ps(S10_1, S14_1, 0x20); + tmp.packet[27] = _mm256_permute2f128_ps(S11_1, S15_1, 0x20); + tmp.packet[28] = _mm256_permute2f128_ps(S8_1, S12_1, 0x31); + tmp.packet[29] = _mm256_permute2f128_ps(S9_1, S13_1, 0x31); + tmp.packet[30] = _mm256_permute2f128_ps(S10_1, S14_1, 0x31); + tmp.packet[31] = _mm256_permute2f128_ps(S11_1, S15_1, 0x31); + + // Pack them into the output + PACK_OUTPUT(kernel.packet, tmp.packet, 0, 16); + PACK_OUTPUT(kernel.packet, tmp.packet, 1, 16); + PACK_OUTPUT(kernel.packet, tmp.packet, 2, 16); + PACK_OUTPUT(kernel.packet, tmp.packet, 3, 16); + + PACK_OUTPUT(kernel.packet, tmp.packet, 4, 16); + PACK_OUTPUT(kernel.packet, tmp.packet, 5, 16); + PACK_OUTPUT(kernel.packet, tmp.packet, 6, 16); + PACK_OUTPUT(kernel.packet, tmp.packet, 7, 16); + + PACK_OUTPUT(kernel.packet, tmp.packet, 8, 16); + PACK_OUTPUT(kernel.packet, tmp.packet, 9, 16); + PACK_OUTPUT(kernel.packet, tmp.packet, 10, 16); + PACK_OUTPUT(kernel.packet, tmp.packet, 11, 16); + + PACK_OUTPUT(kernel.packet, tmp.packet, 12, 16); + PACK_OUTPUT(kernel.packet, tmp.packet, 13, 16); + PACK_OUTPUT(kernel.packet, tmp.packet, 14, 16); + PACK_OUTPUT(kernel.packet, tmp.packet, 15, 16); +} +#define PACK_OUTPUT_2(OUTPUT, INPUT, INDEX, STRIDE) \ + EIGEN_INSERT_8f_INTO_16f(OUTPUT[INDEX], INPUT[2 * INDEX], \ + INPUT[2 * INDEX + STRIDE]); + +EIGEN_DEVICE_FUNC inline void ptranspose(PacketBlock<Packet16f, 4>& kernel) { + __m512 T0 = _mm512_unpacklo_ps(kernel.packet[0], kernel.packet[1]); + __m512 T1 = _mm512_unpackhi_ps(kernel.packet[0], kernel.packet[1]); + __m512 T2 = _mm512_unpacklo_ps(kernel.packet[2], kernel.packet[3]); + __m512 T3 = _mm512_unpackhi_ps(kernel.packet[2], kernel.packet[3]); + + __m512 S0 = _mm512_shuffle_ps(T0, T2, _MM_SHUFFLE(1, 0, 1, 0)); + __m512 S1 = _mm512_shuffle_ps(T0, T2, _MM_SHUFFLE(3, 2, 3, 2)); + __m512 S2 = _mm512_shuffle_ps(T1, T3, _MM_SHUFFLE(1, 0, 1, 0)); + __m512 S3 = _mm512_shuffle_ps(T1, T3, _MM_SHUFFLE(3, 2, 3, 2)); + + EIGEN_EXTRACT_8f_FROM_16f(S0, S0); + EIGEN_EXTRACT_8f_FROM_16f(S1, S1); + EIGEN_EXTRACT_8f_FROM_16f(S2, S2); + EIGEN_EXTRACT_8f_FROM_16f(S3, S3); + + PacketBlock<Packet8f, 8> tmp; + + tmp.packet[0] = _mm256_permute2f128_ps(S0_0, S1_0, 0x20); + tmp.packet[1] = _mm256_permute2f128_ps(S2_0, S3_0, 0x20); + tmp.packet[2] = _mm256_permute2f128_ps(S0_0, S1_0, 0x31); + tmp.packet[3] = _mm256_permute2f128_ps(S2_0, S3_0, 0x31); + + tmp.packet[4] = _mm256_permute2f128_ps(S0_1, S1_1, 0x20); + tmp.packet[5] = _mm256_permute2f128_ps(S2_1, S3_1, 0x20); + tmp.packet[6] = _mm256_permute2f128_ps(S0_1, S1_1, 0x31); + tmp.packet[7] = _mm256_permute2f128_ps(S2_1, S3_1, 0x31); + + PACK_OUTPUT_2(kernel.packet, tmp.packet, 0, 1); + PACK_OUTPUT_2(kernel.packet, tmp.packet, 1, 1); + PACK_OUTPUT_2(kernel.packet, tmp.packet, 2, 1); + PACK_OUTPUT_2(kernel.packet, tmp.packet, 3, 1); +} + +#define PACK_OUTPUT_SQ_D(OUTPUT, INPUT, INDEX, STRIDE) \ + OUTPUT[INDEX] = _mm512_insertf64x4(OUTPUT[INDEX], INPUT[INDEX], 0); \ + OUTPUT[INDEX] = _mm512_insertf64x4(OUTPUT[INDEX], INPUT[INDEX + STRIDE], 1); + +#define PACK_OUTPUT_D(OUTPUT, INPUT, INDEX, STRIDE) \ + OUTPUT[INDEX] = _mm512_insertf64x4(OUTPUT[INDEX], INPUT[(2 * INDEX)], 0); \ + OUTPUT[INDEX] = \ + _mm512_insertf64x4(OUTPUT[INDEX], INPUT[(2 * INDEX) + STRIDE], 1); + +EIGEN_DEVICE_FUNC inline void ptranspose(PacketBlock<Packet8d, 4>& kernel) { + __m512d T0 = _mm512_shuffle_pd(kernel.packet[0], kernel.packet[1], 0); + __m512d T1 = _mm512_shuffle_pd(kernel.packet[0], kernel.packet[1], 0xff); + __m512d T2 = _mm512_shuffle_pd(kernel.packet[2], kernel.packet[3], 0); + __m512d T3 = _mm512_shuffle_pd(kernel.packet[2], kernel.packet[3], 0xff); + + PacketBlock<Packet4d, 8> tmp; + + tmp.packet[0] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T0, 0), + _mm512_extractf64x4_pd(T2, 0), 0x20); + tmp.packet[1] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T1, 0), + _mm512_extractf64x4_pd(T3, 0), 0x20); + tmp.packet[2] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T0, 0), + _mm512_extractf64x4_pd(T2, 0), 0x31); + tmp.packet[3] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T1, 0), + _mm512_extractf64x4_pd(T3, 0), 0x31); + + tmp.packet[4] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T0, 1), + _mm512_extractf64x4_pd(T2, 1), 0x20); + tmp.packet[5] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T1, 1), + _mm512_extractf64x4_pd(T3, 1), 0x20); + tmp.packet[6] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T0, 1), + _mm512_extractf64x4_pd(T2, 1), 0x31); + tmp.packet[7] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T1, 1), + _mm512_extractf64x4_pd(T3, 1), 0x31); + + PACK_OUTPUT_D(kernel.packet, tmp.packet, 0, 1); + PACK_OUTPUT_D(kernel.packet, tmp.packet, 1, 1); + PACK_OUTPUT_D(kernel.packet, tmp.packet, 2, 1); + PACK_OUTPUT_D(kernel.packet, tmp.packet, 3, 1); +} + +EIGEN_DEVICE_FUNC inline void ptranspose(PacketBlock<Packet8d, 8>& kernel) { + __m512d T0 = _mm512_unpacklo_pd(kernel.packet[0], kernel.packet[1]); + __m512d T1 = _mm512_unpackhi_pd(kernel.packet[0], kernel.packet[1]); + __m512d T2 = _mm512_unpacklo_pd(kernel.packet[2], kernel.packet[3]); + __m512d T3 = _mm512_unpackhi_pd(kernel.packet[2], kernel.packet[3]); + __m512d T4 = _mm512_unpacklo_pd(kernel.packet[4], kernel.packet[5]); + __m512d T5 = _mm512_unpackhi_pd(kernel.packet[4], kernel.packet[5]); + __m512d T6 = _mm512_unpacklo_pd(kernel.packet[6], kernel.packet[7]); + __m512d T7 = _mm512_unpackhi_pd(kernel.packet[6], kernel.packet[7]); + + PacketBlock<Packet4d, 16> tmp; + + tmp.packet[0] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T0, 0), + _mm512_extractf64x4_pd(T2, 0), 0x20); + tmp.packet[1] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T1, 0), + _mm512_extractf64x4_pd(T3, 0), 0x20); + tmp.packet[2] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T0, 0), + _mm512_extractf64x4_pd(T2, 0), 0x31); + tmp.packet[3] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T1, 0), + _mm512_extractf64x4_pd(T3, 0), 0x31); + + tmp.packet[4] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T0, 1), + _mm512_extractf64x4_pd(T2, 1), 0x20); + tmp.packet[5] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T1, 1), + _mm512_extractf64x4_pd(T3, 1), 0x20); + tmp.packet[6] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T0, 1), + _mm512_extractf64x4_pd(T2, 1), 0x31); + tmp.packet[7] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T1, 1), + _mm512_extractf64x4_pd(T3, 1), 0x31); + + tmp.packet[8] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T4, 0), + _mm512_extractf64x4_pd(T6, 0), 0x20); + tmp.packet[9] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T5, 0), + _mm512_extractf64x4_pd(T7, 0), 0x20); + tmp.packet[10] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T4, 0), + _mm512_extractf64x4_pd(T6, 0), 0x31); + tmp.packet[11] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T5, 0), + _mm512_extractf64x4_pd(T7, 0), 0x31); + + tmp.packet[12] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T4, 1), + _mm512_extractf64x4_pd(T6, 1), 0x20); + tmp.packet[13] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T5, 1), + _mm512_extractf64x4_pd(T7, 1), 0x20); + tmp.packet[14] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T4, 1), + _mm512_extractf64x4_pd(T6, 1), 0x31); + tmp.packet[15] = _mm256_permute2f128_pd(_mm512_extractf64x4_pd(T5, 1), + _mm512_extractf64x4_pd(T7, 1), 0x31); + + PACK_OUTPUT_SQ_D(kernel.packet, tmp.packet, 0, 8); + PACK_OUTPUT_SQ_D(kernel.packet, tmp.packet, 1, 8); + PACK_OUTPUT_SQ_D(kernel.packet, tmp.packet, 2, 8); + PACK_OUTPUT_SQ_D(kernel.packet, tmp.packet, 3, 8); + + PACK_OUTPUT_SQ_D(kernel.packet, tmp.packet, 4, 8); + PACK_OUTPUT_SQ_D(kernel.packet, tmp.packet, 5, 8); + PACK_OUTPUT_SQ_D(kernel.packet, tmp.packet, 6, 8); + PACK_OUTPUT_SQ_D(kernel.packet, tmp.packet, 7, 8); +} +template <> +EIGEN_STRONG_INLINE Packet16f pblend(const Selector<16>& /*ifPacket*/, + const Packet16f& /*thenPacket*/, + const Packet16f& /*elsePacket*/) { + assert(false && "To be implemented"); + return Packet16f(); +} +template <> +EIGEN_STRONG_INLINE Packet8d pblend(const Selector<8>& /*ifPacket*/, + const Packet8d& /*thenPacket*/, + const Packet8d& /*elsePacket*/) { + assert(false && "To be implemented"); + return Packet8d(); +} + +} // end namespace internal + +} // end namespace Eigen + +#endif // EIGEN_PACKET_MATH_AVX512_H |