| // This file is part of Eigen, a lightweight C++ template library |
| // for linear algebra. |
| // |
| // Copyright (C) 2008-2009 Gael Guennebaud <gael.guennebaud@inria.fr> |
| // |
| // 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_SSE_H |
| #define EIGEN_PACKET_MATH_SSE_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 1 |
| #endif |
| #endif |
| |
| typedef __m128 Packet4f; |
| typedef __m128i Packet4i; |
| typedef __m128d Packet2d; |
| |
| template<> struct is_arithmetic<__m128> { enum { value = true }; }; |
| template<> struct is_arithmetic<__m128i> { enum { value = true }; }; |
| template<> struct is_arithmetic<__m128d> { enum { value = true }; }; |
| |
| #define vec4f_swizzle1(v,p,q,r,s) \ |
| (_mm_castsi128_ps(_mm_shuffle_epi32( _mm_castps_si128(v), ((s)<<6|(r)<<4|(q)<<2|(p))))) |
| |
| #define vec4i_swizzle1(v,p,q,r,s) \ |
| (_mm_shuffle_epi32( v, ((s)<<6|(r)<<4|(q)<<2|(p)))) |
| |
| #define vec2d_swizzle1(v,p,q) \ |
| (_mm_castsi128_pd(_mm_shuffle_epi32( _mm_castpd_si128(v), ((q*2+1)<<6|(q*2)<<4|(p*2+1)<<2|(p*2))))) |
| |
| #define vec4f_swizzle2(a,b,p,q,r,s) \ |
| (_mm_shuffle_ps( (a), (b), ((s)<<6|(r)<<4|(q)<<2|(p)))) |
| |
| #define vec4i_swizzle2(a,b,p,q,r,s) \ |
| (_mm_castps_si128( (_mm_shuffle_ps( _mm_castsi128_ps(a), _mm_castsi128_ps(b), ((s)<<6|(r)<<4|(q)<<2|(p)))))) |
| |
| #define _EIGEN_DECLARE_CONST_Packet4f(NAME,X) \ |
| const Packet4f p4f_##NAME = pset1<Packet4f>(X) |
| |
| #define _EIGEN_DECLARE_CONST_Packet2d(NAME,X) \ |
| const Packet2d p2d_##NAME = pset1<Packet2d>(X) |
| |
| #define _EIGEN_DECLARE_CONST_Packet4f_FROM_INT(NAME,X) \ |
| const Packet4f p4f_##NAME = _mm_castsi128_ps(pset1<Packet4i>(X)) |
| |
| #define _EIGEN_DECLARE_CONST_Packet4i(NAME,X) \ |
| const Packet4i p4i_##NAME = pset1<Packet4i>(X) |
| |
| |
| // Use the packet_traits defined in AVX/PacketMath.h instead if we're going |
| // to leverage AVX instructions. |
| #ifndef EIGEN_VECTORIZE_AVX512 |
| #ifndef EIGEN_VECTORIZE_AVX |
| template<> struct packet_traits<float> : default_packet_traits |
| { |
| typedef Packet4f type; |
| typedef Packet4f half; |
| enum { |
| Vectorizable = 1, |
| AlignedOnScalar = 1, |
| size=4, |
| HasHalfPacket = 0, |
| |
| HasDiv = 1, |
| HasSin = EIGEN_FAST_MATH, |
| HasCos = EIGEN_FAST_MATH, |
| HasTanH = 1, |
| HasLog = 1, |
| HasExp = 1, |
| HasSqrt = 1, |
| HasRsqrt = 1, |
| |
| HasBlend = 1, |
| HasSelect = 1, |
| HasEq = 1, |
| }; |
| }; |
| template<> struct packet_traits<double> : default_packet_traits |
| { |
| typedef Packet2d type; |
| typedef Packet2d half; |
| enum { |
| Vectorizable = 1, |
| AlignedOnScalar = 1, |
| size=2, |
| HasHalfPacket = 0, |
| |
| HasDiv = 1, |
| HasTanH = 1, |
| HasExp = 1, |
| HasSqrt = 1, |
| HasRsqrt = 1, |
| |
| HasBlend = 1, |
| HasSelect = 1, |
| HasEq = 1, |
| }; |
| }; |
| #endif |
| template<> struct packet_traits<int> : default_packet_traits |
| { |
| typedef Packet4i type; |
| typedef Packet4i half; |
| enum { |
| // FIXME check the Has* |
| Vectorizable = 1, |
| AlignedOnScalar = 1, |
| size=4, |
| |
| HasBlend = 1, |
| }; |
| }; |
| #endif |
| |
| template<> struct unpacket_traits<Packet4f> { typedef float type; enum {size=4}; typedef Packet4f half; }; |
| template<> struct unpacket_traits<Packet2d> { typedef double type; enum {size=2}; typedef Packet2d half; }; |
| template<> struct unpacket_traits<Packet4i> { typedef int type; enum {size=4}; typedef Packet4i half; }; |
| |
| #if EIGEN_COMP_MSVC==1500 |
| // Workaround MSVC 9 internal compiler error. |
| // TODO: It has been detected with win64 builds (amd64), so let's check whether it also happens in 32bits+SSE mode |
| // TODO: let's check whether there does not exist a better fix, like adding a pset0() function. (it crashed on pset1(0)). |
| template<> EIGEN_STRONG_INLINE Packet4f pset1<Packet4f>(const float& from) { return _mm_set_ps(from,from,from,from); } |
| template<> EIGEN_STRONG_INLINE Packet2d pset1<Packet2d>(const double& from) { return _mm_set_pd(from,from); } |
| template<> EIGEN_STRONG_INLINE Packet4i pset1<Packet4i>(const int& from) { return _mm_set_epi32(from,from,from,from); } |
| #else |
| template<> EIGEN_STRONG_INLINE Packet4f pset1<Packet4f>(const float& from) { return _mm_set_ps1(from); } |
| template<> EIGEN_STRONG_INLINE Packet2d pset1<Packet2d>(const double& from) { return _mm_set1_pd(from); } |
| template<> EIGEN_STRONG_INLINE Packet4i pset1<Packet4i>(const int& from) { return _mm_set1_epi32(from); } |
| #endif |
| |
| // GCC generates a shufps instruction for _mm_set1_ps/_mm_load1_ps instead of the more efficient pshufd instruction. |
| // However, using inrinsics for pset1 makes gcc to generate crappy code in some cases (see bug 203) |
| // Using inline assembly is also not an option because then gcc fails to reorder properly the instructions. |
| // Therefore, we introduced the pload1 functions to be used in product kernels for which bug 203 does not apply. |
| // Also note that with AVX, we want it to generate a vbroadcastss. |
| #if EIGEN_COMP_GNUC_STRICT && (!defined __AVX__) |
| template<> EIGEN_STRONG_INLINE Packet4f pload1<Packet4f>(const float *from) { |
| return vec4f_swizzle1(_mm_load_ss(from),0,0,0,0); |
| } |
| #endif |
| |
| #ifndef EIGEN_VECTORIZE_AVX512 |
| #ifndef EIGEN_VECTORIZE_AVX |
| template<> EIGEN_STRONG_INLINE Packet4f plset<float>(const float& a) { return _mm_add_ps(pset1<Packet4f>(a), _mm_set_ps(3,2,1,0)); } |
| template<> EIGEN_STRONG_INLINE Packet2d plset<double>(const double& a) { return _mm_add_pd(pset1<Packet2d>(a),_mm_set_pd(1,0)); } |
| #endif |
| template<> EIGEN_STRONG_INLINE Packet4i plset<int>(const int& a) { return _mm_add_epi32(pset1<Packet4i>(a),_mm_set_epi32(3,2,1,0)); } |
| #endif |
| |
| template<> EIGEN_STRONG_INLINE Packet4f padd<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_add_ps(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet2d padd<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_add_pd(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet4i padd<Packet4i>(const Packet4i& a, const Packet4i& b) { return _mm_add_epi32(a,b); } |
| |
| template<> EIGEN_STRONG_INLINE Packet4f psub<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_sub_ps(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet2d psub<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_sub_pd(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet4i psub<Packet4i>(const Packet4i& a, const Packet4i& b) { return _mm_sub_epi32(a,b); } |
| |
| template<> EIGEN_STRONG_INLINE Packet4f ple<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_cmple_ps(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet2d ple<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_cmple_pd(a,b); } |
| |
| template<> EIGEN_STRONG_INLINE Packet4f plt<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_cmplt_ps(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet2d plt<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_cmplt_pd(a,b); } |
| |
| template<> EIGEN_STRONG_INLINE Packet4f peq<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_cmpeq_ps(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet2d peq<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_cmpeq_pd(a,b); } |
| |
| template<> EIGEN_STRONG_INLINE Packet4f pselect<Packet4f>(const Packet4f& a, const Packet4f& b, const Packet4f& false_mask) { |
| #if defined(EIGEN_VECTORIZE_SSE4_1) |
| return _mm_blendv_ps(a, b, false_mask); |
| #else |
| return _mm_or_ps(_mm_andnot_ps(false_mask, a), _mm_and_ps(false_mask, b)); |
| #endif |
| } |
| template<> EIGEN_STRONG_INLINE Packet2d pselect<Packet2d>(const Packet2d& a, const Packet2d& b, const Packet2d& false_mask) { |
| #if defined(EIGEN_VECTORIZE_SSE4_1) |
| return _mm_blendv_pd(a, b, false_mask); |
| #else |
| return _mm_or_pd(_mm_andnot_pd(false_mask, a), _mm_and_pd(false_mask, b)); |
| #endif |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet4f pnegate(const Packet4f& a) |
| { |
| const Packet4f mask = _mm_castsi128_ps(_mm_setr_epi32(0x80000000,0x80000000,0x80000000,0x80000000)); |
| return _mm_xor_ps(a,mask); |
| } |
| template<> EIGEN_STRONG_INLINE Packet2d pnegate(const Packet2d& a) |
| { |
| const Packet2d mask = _mm_castsi128_pd(_mm_setr_epi32(0x0,0x80000000,0x0,0x80000000)); |
| return _mm_xor_pd(a,mask); |
| } |
| template<> EIGEN_STRONG_INLINE Packet4i pnegate(const Packet4i& a) |
| { |
| return psub(Packet4i(_mm_setr_epi32(0,0,0,0)), a); |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet4f pconj(const Packet4f& a) { return a; } |
| template<> EIGEN_STRONG_INLINE Packet2d pconj(const Packet2d& a) { return a; } |
| template<> EIGEN_STRONG_INLINE Packet4i pconj(const Packet4i& a) { return a; } |
| |
| template<> EIGEN_STRONG_INLINE Packet4f pmul<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_mul_ps(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet2d pmul<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_mul_pd(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet4i pmul<Packet4i>(const Packet4i& a, const Packet4i& b) |
| { |
| #ifdef EIGEN_VECTORIZE_SSE4_1 |
| return _mm_mullo_epi32(a,b); |
| #else |
| // this version is slightly faster than 4 scalar products |
| return vec4i_swizzle1( |
| vec4i_swizzle2( |
| _mm_mul_epu32(a,b), |
| _mm_mul_epu32(vec4i_swizzle1(a,1,0,3,2), |
| vec4i_swizzle1(b,1,0,3,2)), |
| 0,2,0,2), |
| 0,2,1,3); |
| #endif |
| } |
| |
| // for some weird raisons, it has to be overloaded for packet of integers |
| template<> EIGEN_STRONG_INLINE Packet4i pmadd(const Packet4i& a, const Packet4i& b, const Packet4i& c) { return padd(pmul(a,b), c); } |
| #ifdef __FMA__ |
| template<> EIGEN_STRONG_INLINE Packet4f pmadd(const Packet4f& a, const Packet4f& b, const Packet4f& c) { return _mm_fmadd_ps(a,b,c); } |
| template<> EIGEN_STRONG_INLINE Packet2d pmadd(const Packet2d& a, const Packet2d& b, const Packet2d& c) { return _mm_fmadd_pd(a,b,c); } |
| #endif |
| |
| template<> EIGEN_STRONG_INLINE Packet4f pmin<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_min_ps(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet2d pmin<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_min_pd(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet4i pmin<Packet4i>(const Packet4i& a, const Packet4i& b) |
| { |
| #ifdef EIGEN_VECTORIZE_SSE4_1 |
| return _mm_min_epi32(a,b); |
| #else |
| // after some bench, this version *is* faster than a scalar implementation |
| Packet4i mask = _mm_cmplt_epi32(a,b); |
| return _mm_or_si128(_mm_and_si128(mask,a),_mm_andnot_si128(mask,b)); |
| #endif |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet4f pmax<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_max_ps(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet2d pmax<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_max_pd(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet4i pmax<Packet4i>(const Packet4i& a, const Packet4i& b) |
| { |
| #ifdef EIGEN_VECTORIZE_SSE4_1 |
| return _mm_max_epi32(a,b); |
| #else |
| // after some bench, this version *is* faster than a scalar implementation |
| Packet4i mask = _mm_cmpgt_epi32(a,b); |
| return _mm_or_si128(_mm_and_si128(mask,a),_mm_andnot_si128(mask,b)); |
| #endif |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet4f pand<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_and_ps(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet2d pand<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_and_pd(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet4i pand<Packet4i>(const Packet4i& a, const Packet4i& b) { return _mm_and_si128(a,b); } |
| |
| template<> EIGEN_STRONG_INLINE Packet4f por<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_or_ps(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet2d por<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_or_pd(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet4i por<Packet4i>(const Packet4i& a, const Packet4i& b) { return _mm_or_si128(a,b); } |
| |
| template<> EIGEN_STRONG_INLINE Packet4f pxor<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_xor_ps(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet2d pxor<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_xor_pd(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet4i pxor<Packet4i>(const Packet4i& a, const Packet4i& b) { return _mm_xor_si128(a,b); } |
| |
| template<> EIGEN_STRONG_INLINE Packet4f pandnot<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_andnot_ps(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet2d pandnot<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_andnot_pd(a,b); } |
| template<> EIGEN_STRONG_INLINE Packet4i pandnot<Packet4i>(const Packet4i& a, const Packet4i& b) { return _mm_andnot_si128(a,b); } |
| |
| template<> EIGEN_STRONG_INLINE Packet4f pload<Packet4f>(const float* from) { EIGEN_DEBUG_ALIGNED_LOAD return _mm_load_ps(from); } |
| template<> EIGEN_STRONG_INLINE Packet2d pload<Packet2d>(const double* from) { EIGEN_DEBUG_ALIGNED_LOAD return _mm_load_pd(from); } |
| template<> EIGEN_STRONG_INLINE Packet4i pload<Packet4i>(const int* from) { EIGEN_DEBUG_ALIGNED_LOAD return _mm_load_si128(reinterpret_cast<const __m128i*>(from)); } |
| |
| #if EIGEN_COMP_MSVC |
| template<> EIGEN_STRONG_INLINE Packet4f ploadu<Packet4f>(const float* from) { |
| EIGEN_DEBUG_UNALIGNED_LOAD |
| #if (EIGEN_COMP_MSVC==1600) |
| // NOTE Some version of MSVC10 generates bad code when using _mm_loadu_ps |
| // (i.e., it does not generate an unaligned load!! |
| // TODO On most architectures this version should also be faster than a single _mm_loadu_ps |
| // so we could also enable it for MSVC08 but first we have to make this later does not generate crap when doing so... |
| __m128 res = _mm_loadl_pi(_mm_set1_ps(0.0f), (const __m64*)(from)); |
| res = _mm_loadh_pi(res, (const __m64*)(from+2)); |
| return res; |
| #else |
| return _mm_loadu_ps(from); |
| #endif |
| } |
| template<> EIGEN_STRONG_INLINE Packet2d ploadu<Packet2d>(const double* from) { EIGEN_DEBUG_UNALIGNED_LOAD return _mm_loadu_pd(from); } |
| template<> EIGEN_STRONG_INLINE Packet4i ploadu<Packet4i>(const int* from) { EIGEN_DEBUG_UNALIGNED_LOAD return _mm_loadu_si128(reinterpret_cast<const __m128i*>(from)); } |
| #else |
| // Fast unaligned loads. Note that here we cannot directly use intrinsics: this would |
| // require pointer casting to incompatible pointer types and leads to invalid code |
| // because of the strict aliasing rule. The "dummy" stuff are required to enforce |
| // a correct instruction dependency. |
| // TODO: do the same for MSVC (ICC is compatible) |
| // NOTE: with the code below, MSVC's compiler crashes! |
| |
| #if EIGEN_COMP_GNUC && (EIGEN_ARCH_i386 || (EIGEN_ARCH_x86_64 && EIGEN_GNUC_AT_LEAST(4, 8))) |
| // bug 195: gcc/i386 emits weird x87 fldl/fstpl instructions for _mm_load_sd |
| #define EIGEN_AVOID_CUSTOM_UNALIGNED_LOADS 1 |
| #define EIGEN_AVOID_CUSTOM_UNALIGNED_STORES 1 |
| #elif EIGEN_COMP_CLANG |
| // bug 201: Segfaults in __mm_loadh_pd with clang 2.8 |
| #define EIGEN_AVOID_CUSTOM_UNALIGNED_LOADS 1 |
| #define EIGEN_AVOID_CUSTOM_UNALIGNED_STORES 0 |
| #else |
| #define EIGEN_AVOID_CUSTOM_UNALIGNED_LOADS 0 |
| #define EIGEN_AVOID_CUSTOM_UNALIGNED_STORES 0 |
| #endif |
| |
| template<> EIGEN_STRONG_INLINE Packet4f ploadu<Packet4f>(const float* from) |
| { |
| EIGEN_DEBUG_UNALIGNED_LOAD |
| #if EIGEN_AVOID_CUSTOM_UNALIGNED_LOADS |
| return _mm_loadu_ps(from); |
| #else |
| __m128d res; |
| res = _mm_load_sd((const double*)(from)) ; |
| res = _mm_loadh_pd(res, (const double*)(from+2)) ; |
| return _mm_castpd_ps(res); |
| #endif |
| } |
| template<> EIGEN_STRONG_INLINE Packet2d ploadu<Packet2d>(const double* from) |
| { |
| EIGEN_DEBUG_UNALIGNED_LOAD |
| #if EIGEN_AVOID_CUSTOM_UNALIGNED_LOADS |
| return _mm_loadu_pd(from); |
| #else |
| __m128d res; |
| res = _mm_load_sd(from) ; |
| res = _mm_loadh_pd(res,from+1); |
| return res; |
| #endif |
| } |
| template<> EIGEN_STRONG_INLINE Packet4i ploadu<Packet4i>(const int* from) |
| { |
| EIGEN_DEBUG_UNALIGNED_LOAD |
| #if EIGEN_AVOID_CUSTOM_UNALIGNED_LOADS |
| return _mm_loadu_si128(reinterpret_cast<const __m128i*>(from)); |
| #else |
| __m128d res; |
| res = _mm_load_sd((const double*)(from)) ; |
| res = _mm_loadh_pd(res, (const double*)(from+2)) ; |
| return _mm_castpd_si128(res); |
| #endif |
| } |
| #endif |
| |
| template<> EIGEN_STRONG_INLINE Packet4f ploaddup<Packet4f>(const float* from) |
| { |
| return vec4f_swizzle1(_mm_castpd_ps(_mm_load_sd(reinterpret_cast<const double*>(from))), 0, 0, 1, 1); |
| } |
| template<> EIGEN_STRONG_INLINE Packet2d ploaddup<Packet2d>(const double* from) |
| { return pset1<Packet2d>(from[0]); } |
| template<> EIGEN_STRONG_INLINE Packet4i ploaddup<Packet4i>(const int* from) |
| { |
| Packet4i tmp; |
| tmp = _mm_loadl_epi64(reinterpret_cast<const __m128i*>(from)); |
| return vec4i_swizzle1(tmp, 0, 0, 1, 1); |
| } |
| |
| template<> EIGEN_STRONG_INLINE void pstore<float>(float* to, const Packet4f& from) { EIGEN_DEBUG_ALIGNED_STORE _mm_store_ps(to, from); } |
| template<> EIGEN_STRONG_INLINE void pstore<double>(double* to, const Packet2d& from) { EIGEN_DEBUG_ALIGNED_STORE _mm_store_pd(to, from); } |
| template<> EIGEN_STRONG_INLINE void pstore<int>(int* to, const Packet4i& from) { EIGEN_DEBUG_ALIGNED_STORE _mm_store_si128(reinterpret_cast<__m128i*>(to), from); } |
| |
| template<> EIGEN_STRONG_INLINE void pstoreu<double>(double* to, const Packet2d& from) { |
| EIGEN_DEBUG_UNALIGNED_STORE |
| #if EIGEN_AVOID_CUSTOM_UNALIGNED_STORES |
| _mm_storeu_pd(to, from); |
| #else |
| _mm_storel_pd((to), from); |
| _mm_storeh_pd((to+1), from); |
| #endif |
| } |
| template<> EIGEN_STRONG_INLINE void pstoreu<float>(float* to, const Packet4f& from) { EIGEN_DEBUG_UNALIGNED_STORE pstoreu(reinterpret_cast<double*>(to), Packet2d(_mm_castps_pd(from))); } |
| template<> EIGEN_STRONG_INLINE void pstoreu<int>(int* to, const Packet4i& from) { EIGEN_DEBUG_UNALIGNED_STORE pstoreu(reinterpret_cast<double*>(to), Packet2d(_mm_castsi128_pd(from))); } |
| |
| template<> EIGEN_DEVICE_FUNC inline Packet4f pgather<float, Packet4f>(const float* from, int stride) |
| { |
| return _mm_set_ps(from[3*stride], from[2*stride], from[1*stride], from[0*stride]); |
| } |
| template<> EIGEN_DEVICE_FUNC inline Packet2d pgather<double, Packet2d>(const double* from, int stride) |
| { |
| return _mm_set_pd(from[1*stride], from[0*stride]); |
| } |
| template<> EIGEN_DEVICE_FUNC inline Packet4i pgather<int, Packet4i>(const int* from, int stride) |
| { |
| return _mm_set_epi32(from[3*stride], from[2*stride], from[1*stride], from[0*stride]); |
| } |
| |
| template<> EIGEN_DEVICE_FUNC inline void pscatter<float, Packet4f>(float* to, const Packet4f& from, int stride) |
| { |
| to[stride*0] = _mm_cvtss_f32(from); |
| to[stride*1] = _mm_cvtss_f32(_mm_shuffle_ps(from, from, 1)); |
| to[stride*2] = _mm_cvtss_f32(_mm_shuffle_ps(from, from, 2)); |
| to[stride*3] = _mm_cvtss_f32(_mm_shuffle_ps(from, from, 3)); |
| } |
| template<> EIGEN_DEVICE_FUNC inline void pscatter<double, Packet2d>(double* to, const Packet2d& from, int stride) |
| { |
| to[stride*0] = _mm_cvtsd_f64(from); |
| to[stride*1] = _mm_cvtsd_f64(_mm_shuffle_pd(from, from, 1)); |
| } |
| template<> EIGEN_DEVICE_FUNC inline void pscatter<int, Packet4i>(int* to, const Packet4i& from, int stride) |
| { |
| to[stride*0] = _mm_cvtsi128_si32(from); |
| to[stride*1] = _mm_cvtsi128_si32(_mm_shuffle_epi32(from, 1)); |
| to[stride*2] = _mm_cvtsi128_si32(_mm_shuffle_epi32(from, 2)); |
| to[stride*3] = _mm_cvtsi128_si32(_mm_shuffle_epi32(from, 3)); |
| } |
| |
| // some compilers might be tempted to perform multiple moves instead of using a vector path. |
| template<> EIGEN_STRONG_INLINE void pstore1<Packet4f>(float* to, const float& a) |
| { |
| Packet4f pa = _mm_set_ss(a); |
| pstore(to, Packet4f(vec4f_swizzle1(pa,0,0,0,0))); |
| } |
| // some compilers might be tempted to perform multiple moves instead of using a vector path. |
| template<> EIGEN_STRONG_INLINE void pstore1<Packet2d>(double* to, const double& a) |
| { |
| Packet2d pa = _mm_set_sd(a); |
| pstore(to, Packet2d(vec2d_swizzle1(pa,0,0))); |
| } |
| |
| #ifndef EIGEN_VECTORIZE_AVX |
| 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); } |
| #endif |
| |
| #if EIGEN_COMP_MSVC_STRICT && EIGEN_OS_WIN64 |
| // The temporary variable fixes an internal compilation error in vs <= 2008 and a wrong-result bug in vs 2010 |
| // Direct of the struct members fixed bug #62. |
| template<> EIGEN_STRONG_INLINE float pfirst<Packet4f>(const Packet4f& a) { return a.m128_f32[0]; } |
| template<> EIGEN_STRONG_INLINE double pfirst<Packet2d>(const Packet2d& a) { return a.m128d_f64[0]; } |
| template<> EIGEN_STRONG_INLINE int pfirst<Packet4i>(const Packet4i& a) { int x = _mm_cvtsi128_si32(a); return x; } |
| #elif EIGEN_COMP_MSVC_STRICT |
| // The temporary variable fixes an internal compilation error in vs <= 2008 and a wrong-result bug in vs 2010 |
| template<> EIGEN_STRONG_INLINE float pfirst<Packet4f>(const Packet4f& a) { float x = _mm_cvtss_f32(a); return x; } |
| template<> EIGEN_STRONG_INLINE double pfirst<Packet2d>(const Packet2d& a) { double x = _mm_cvtsd_f64(a); return x; } |
| template<> EIGEN_STRONG_INLINE int pfirst<Packet4i>(const Packet4i& a) { int x = _mm_cvtsi128_si32(a); return x; } |
| #else |
| template<> EIGEN_STRONG_INLINE float pfirst<Packet4f>(const Packet4f& a) { return _mm_cvtss_f32(a); } |
| template<> EIGEN_STRONG_INLINE double pfirst<Packet2d>(const Packet2d& a) { return _mm_cvtsd_f64(a); } |
| template<> EIGEN_STRONG_INLINE int pfirst<Packet4i>(const Packet4i& a) { return _mm_cvtsi128_si32(a); } |
| #endif |
| |
| template<> EIGEN_STRONG_INLINE Packet4f preverse(const Packet4f& a) |
| { return _mm_shuffle_ps(a,a,0x1B); } |
| template<> EIGEN_STRONG_INLINE Packet2d preverse(const Packet2d& a) |
| { return _mm_shuffle_pd(a,a,0x1); } |
| template<> EIGEN_STRONG_INLINE Packet4i preverse(const Packet4i& a) |
| { return _mm_shuffle_epi32(a,0x1B); } |
| |
| template<> EIGEN_STRONG_INLINE Packet4f pabs(const Packet4f& a) |
| { |
| const Packet4f mask = _mm_castsi128_ps(_mm_setr_epi32(0x7FFFFFFF,0x7FFFFFFF,0x7FFFFFFF,0x7FFFFFFF)); |
| return _mm_and_ps(a,mask); |
| } |
| template<> EIGEN_STRONG_INLINE Packet2d pabs(const Packet2d& a) |
| { |
| const Packet2d mask = _mm_castsi128_pd(_mm_setr_epi32(0xFFFFFFFF,0x7FFFFFFF,0xFFFFFFFF,0x7FFFFFFF)); |
| return _mm_and_pd(a,mask); |
| } |
| template<> EIGEN_STRONG_INLINE Packet4i pabs(const Packet4i& a) |
| { |
| #ifdef EIGEN_VECTORIZE_SSSE3 |
| return _mm_abs_epi32(a); |
| #else |
| Packet4i aux = _mm_srai_epi32(a,31); |
| return _mm_sub_epi32(_mm_xor_si128(a,aux),aux); |
| #endif |
| } |
| |
| // with AVX, the default implementations based on pload1 are faster |
| #ifndef __AVX__ |
| template<> EIGEN_STRONG_INLINE void |
| pbroadcast4<Packet4f>(const float *a, |
| Packet4f& a0, Packet4f& a1, Packet4f& a2, Packet4f& a3) |
| { |
| a3 = pload<Packet4f>(a); |
| a0 = vec4f_swizzle1(a3, 0,0,0,0); |
| a1 = vec4f_swizzle1(a3, 1,1,1,1); |
| a2 = vec4f_swizzle1(a3, 2,2,2,2); |
| a3 = vec4f_swizzle1(a3, 3,3,3,3); |
| } |
| template<> EIGEN_STRONG_INLINE void |
| pbroadcast4<Packet2d>(const double *a, |
| Packet2d& a0, Packet2d& a1, Packet2d& a2, Packet2d& a3) |
| { |
| #ifdef EIGEN_VECTORIZE_SSE3 |
| a0 = _mm_loaddup_pd(a+0); |
| a1 = _mm_loaddup_pd(a+1); |
| a2 = _mm_loaddup_pd(a+2); |
| a3 = _mm_loaddup_pd(a+3); |
| #else |
| a1 = pload<Packet2d>(a); |
| a0 = vec2d_swizzle1(a1, 0,0); |
| a1 = vec2d_swizzle1(a1, 1,1); |
| a3 = pload<Packet2d>(a+2); |
| a2 = vec2d_swizzle1(a3, 0,0); |
| a3 = vec2d_swizzle1(a3, 1,1); |
| #endif |
| } |
| #endif |
| |
| EIGEN_STRONG_INLINE void punpackp(Packet4f* vecs) |
| { |
| vecs[1] = _mm_castsi128_ps(_mm_shuffle_epi32(_mm_castps_si128(vecs[0]), 0x55)); |
| vecs[2] = _mm_castsi128_ps(_mm_shuffle_epi32(_mm_castps_si128(vecs[0]), 0xAA)); |
| vecs[3] = _mm_castsi128_ps(_mm_shuffle_epi32(_mm_castps_si128(vecs[0]), 0xFF)); |
| vecs[0] = _mm_castsi128_ps(_mm_shuffle_epi32(_mm_castps_si128(vecs[0]), 0x00)); |
| } |
| |
| #ifdef EIGEN_VECTORIZE_SSE3 |
| // TODO implement SSE2 versions as well as integer versions |
| template<> EIGEN_STRONG_INLINE Packet4f preduxp<Packet4f>(const Packet4f* vecs) |
| { |
| return _mm_hadd_ps(_mm_hadd_ps(vecs[0], vecs[1]),_mm_hadd_ps(vecs[2], vecs[3])); |
| } |
| template<> EIGEN_STRONG_INLINE Packet2d preduxp<Packet2d>(const Packet2d* vecs) |
| { |
| return _mm_hadd_pd(vecs[0], vecs[1]); |
| } |
| // SSSE3 version: |
| // EIGEN_STRONG_INLINE Packet4i preduxp(const Packet4i* vecs) |
| // { |
| // return _mm_hadd_epi32(_mm_hadd_epi32(vecs[0], vecs[1]),_mm_hadd_epi32(vecs[2], vecs[3])); |
| // } |
| |
| template<> EIGEN_STRONG_INLINE float predux<Packet4f>(const Packet4f& a) |
| { |
| Packet4f tmp0 = _mm_hadd_ps(a,a); |
| return pfirst<Packet4f>(_mm_hadd_ps(tmp0, tmp0)); |
| } |
| |
| template<> EIGEN_STRONG_INLINE double predux<Packet2d>(const Packet2d& a) { return pfirst<Packet2d>(_mm_hadd_pd(a, a)); } |
| |
| // SSSE3 version: |
| // EIGEN_STRONG_INLINE float predux(const Packet4i& a) |
| // { |
| // Packet4i tmp0 = _mm_hadd_epi32(a,a); |
| // return pfirst(_mm_hadd_epi32(tmp0, tmp0)); |
| // } |
| #else |
| // SSE2 versions |
| template<> EIGEN_STRONG_INLINE float predux<Packet4f>(const Packet4f& a) |
| { |
| Packet4f tmp = _mm_add_ps(a, _mm_movehl_ps(a,a)); |
| return pfirst(_mm_add_ss(tmp, _mm_shuffle_ps(tmp,tmp, 1))); |
| } |
| template<> EIGEN_STRONG_INLINE double predux<Packet2d>(const Packet2d& a) |
| { |
| return pfirst(_mm_add_sd(a, _mm_unpackhi_pd(a,a))); |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet4f preduxp<Packet4f>(const Packet4f* vecs) |
| { |
| Packet4f tmp0, tmp1, tmp2; |
| tmp0 = _mm_unpacklo_ps(vecs[0], vecs[1]); |
| tmp1 = _mm_unpackhi_ps(vecs[0], vecs[1]); |
| tmp2 = _mm_unpackhi_ps(vecs[2], vecs[3]); |
| tmp0 = _mm_add_ps(tmp0, tmp1); |
| tmp1 = _mm_unpacklo_ps(vecs[2], vecs[3]); |
| tmp1 = _mm_add_ps(tmp1, tmp2); |
| tmp2 = _mm_movehl_ps(tmp1, tmp0); |
| tmp0 = _mm_movelh_ps(tmp0, tmp1); |
| return _mm_add_ps(tmp0, tmp2); |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet2d preduxp<Packet2d>(const Packet2d* vecs) |
| { |
| return _mm_add_pd(_mm_unpacklo_pd(vecs[0], vecs[1]), _mm_unpackhi_pd(vecs[0], vecs[1])); |
| } |
| #endif // SSE3 |
| |
| template<> EIGEN_STRONG_INLINE int predux<Packet4i>(const Packet4i& a) |
| { |
| Packet4i tmp = _mm_add_epi32(a, _mm_unpackhi_epi64(a,a)); |
| return pfirst(tmp) + pfirst<Packet4i>(_mm_shuffle_epi32(tmp, 1)); |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet4i preduxp<Packet4i>(const Packet4i* vecs) |
| { |
| Packet4i tmp0, tmp1, tmp2; |
| tmp0 = _mm_unpacklo_epi32(vecs[0], vecs[1]); |
| tmp1 = _mm_unpackhi_epi32(vecs[0], vecs[1]); |
| tmp2 = _mm_unpackhi_epi32(vecs[2], vecs[3]); |
| tmp0 = _mm_add_epi32(tmp0, tmp1); |
| tmp1 = _mm_unpacklo_epi32(vecs[2], vecs[3]); |
| tmp1 = _mm_add_epi32(tmp1, tmp2); |
| tmp2 = _mm_unpacklo_epi64(tmp0, tmp1); |
| tmp0 = _mm_unpackhi_epi64(tmp0, tmp1); |
| return _mm_add_epi32(tmp0, tmp2); |
| } |
| |
| // Other reduction functions: |
| |
| // mul |
| template<> EIGEN_STRONG_INLINE float predux_mul<Packet4f>(const Packet4f& a) |
| { |
| Packet4f tmp = _mm_mul_ps(a, _mm_movehl_ps(a,a)); |
| return pfirst<Packet4f>(_mm_mul_ss(tmp, _mm_shuffle_ps(tmp,tmp, 1))); |
| } |
| template<> EIGEN_STRONG_INLINE double predux_mul<Packet2d>(const Packet2d& a) |
| { |
| return pfirst<Packet2d>(_mm_mul_sd(a, _mm_unpackhi_pd(a,a))); |
| } |
| template<> EIGEN_STRONG_INLINE int predux_mul<Packet4i>(const Packet4i& a) |
| { |
| // after some experiments, it is seems this is the fastest way to implement it |
| // for GCC (eg., reusing pmul is very slow !) |
| // TODO try to call _mm_mul_epu32 directly |
| EIGEN_ALIGN16 int aux[4]; |
| pstore(aux, a); |
| return (aux[0] * aux[1]) * (aux[2] * aux[3]);; |
| } |
| |
| // min |
| template<> EIGEN_STRONG_INLINE float predux_min<Packet4f>(const Packet4f& a) |
| { |
| Packet4f tmp = _mm_min_ps(a, _mm_movehl_ps(a,a)); |
| return pfirst<Packet4f>(_mm_min_ss(tmp, _mm_shuffle_ps(tmp,tmp, 1))); |
| } |
| template<> EIGEN_STRONG_INLINE double predux_min<Packet2d>(const Packet2d& a) |
| { |
| return pfirst<Packet2d>(_mm_min_sd(a, _mm_unpackhi_pd(a,a))); |
| } |
| template<> EIGEN_STRONG_INLINE int predux_min<Packet4i>(const Packet4i& a) |
| { |
| #ifdef EIGEN_VECTORIZE_SSE4_1 |
| Packet4i tmp = _mm_min_epi32(a, _mm_shuffle_epi32(a, _MM_SHUFFLE(0,0,3,2))); |
| return pfirst<Packet4i>(_mm_min_epi32(tmp,_mm_shuffle_epi32(tmp, 1))); |
| #else |
| // after some experiments, it is seems this is the fastest way to implement it |
| // for GCC (eg., it does not like using std::min after the pstore !!) |
| EIGEN_ALIGN16 int aux[4]; |
| pstore(aux, a); |
| int aux0 = aux[0]<aux[1] ? aux[0] : aux[1]; |
| int aux2 = aux[2]<aux[3] ? aux[2] : aux[3]; |
| return aux0<aux2 ? aux0 : aux2; |
| #endif // EIGEN_VECTORIZE_SSE4_1 |
| } |
| |
| // max |
| template<> EIGEN_STRONG_INLINE float predux_max<Packet4f>(const Packet4f& a) |
| { |
| Packet4f tmp = _mm_max_ps(a, _mm_movehl_ps(a,a)); |
| return pfirst<Packet4f>(_mm_max_ss(tmp, _mm_shuffle_ps(tmp,tmp, 1))); |
| } |
| template<> EIGEN_STRONG_INLINE double predux_max<Packet2d>(const Packet2d& a) |
| { |
| return pfirst<Packet2d>(_mm_max_sd(a, _mm_unpackhi_pd(a,a))); |
| } |
| template<> EIGEN_STRONG_INLINE int predux_max<Packet4i>(const Packet4i& a) |
| { |
| #ifdef EIGEN_VECTORIZE_SSE4_1 |
| Packet4i tmp = _mm_max_epi32(a, _mm_shuffle_epi32(a, _MM_SHUFFLE(0,0,3,2))); |
| return pfirst<Packet4i>(_mm_max_epi32(tmp,_mm_shuffle_epi32(tmp, 1))); |
| #else |
| // after some experiments, it is seems this is the fastest way to implement it |
| // for GCC (eg., it does not like using std::min after the pstore !!) |
| EIGEN_ALIGN16 int aux[4]; |
| pstore(aux, a); |
| int aux0 = aux[0]>aux[1] ? aux[0] : aux[1]; |
| int aux2 = aux[2]>aux[3] ? aux[2] : aux[3]; |
| return aux0>aux2 ? aux0 : aux2; |
| #endif // EIGEN_VECTORIZE_SSE4_1 |
| } |
| |
| #if EIGEN_COMP_GNUC |
| // template <> EIGEN_STRONG_INLINE Packet4f pmadd(const Packet4f& a, const Packet4f& b, const Packet4f& c) |
| // { |
| // Packet4f res = b; |
| // asm("mulps %[a], %[b] \n\taddps %[c], %[b]" : [b] "+x" (res) : [a] "x" (a), [c] "x" (c)); |
| // return res; |
| // } |
| // EIGEN_STRONG_INLINE Packet4i _mm_alignr_epi8(const Packet4i& a, const Packet4i& b, const int i) |
| // { |
| // Packet4i res = a; |
| // asm("palignr %[i], %[a], %[b] " : [b] "+x" (res) : [a] "x" (a), [i] "i" (i)); |
| // return res; |
| // } |
| #endif |
| |
| #ifdef EIGEN_VECTORIZE_SSSE3 |
| // SSSE3 versions |
| template<int Offset> |
| struct palign_impl<Offset,Packet4f> |
| { |
| static EIGEN_STRONG_INLINE void run(Packet4f& first, const Packet4f& second) |
| { |
| if (Offset!=0) |
| first = _mm_castsi128_ps(_mm_alignr_epi8(_mm_castps_si128(second), _mm_castps_si128(first), Offset*4)); |
| } |
| }; |
| |
| template<int Offset> |
| struct palign_impl<Offset,Packet4i> |
| { |
| static EIGEN_STRONG_INLINE void run(Packet4i& first, const Packet4i& second) |
| { |
| if (Offset!=0) |
| first = _mm_alignr_epi8(second,first, Offset*4); |
| } |
| }; |
| |
| template<int Offset> |
| struct palign_impl<Offset,Packet2d> |
| { |
| static EIGEN_STRONG_INLINE void run(Packet2d& first, const Packet2d& second) |
| { |
| if (Offset==1) |
| first = _mm_castsi128_pd(_mm_alignr_epi8(_mm_castpd_si128(second), _mm_castpd_si128(first), 8)); |
| } |
| }; |
| #else |
| // SSE2 versions |
| template<int Offset> |
| struct palign_impl<Offset,Packet4f> |
| { |
| static EIGEN_STRONG_INLINE void run(Packet4f& first, const Packet4f& second) |
| { |
| if (Offset==1) |
| { |
| first = _mm_move_ss(first,second); |
| first = _mm_castsi128_ps(_mm_shuffle_epi32(_mm_castps_si128(first),0x39)); |
| } |
| else if (Offset==2) |
| { |
| first = _mm_movehl_ps(first,first); |
| first = _mm_movelh_ps(first,second); |
| } |
| else if (Offset==3) |
| { |
| first = _mm_move_ss(first,second); |
| first = _mm_shuffle_ps(first,second,0x93); |
| } |
| } |
| }; |
| |
| template<int Offset> |
| struct palign_impl<Offset,Packet4i> |
| { |
| static EIGEN_STRONG_INLINE void run(Packet4i& first, const Packet4i& second) |
| { |
| if (Offset==1) |
| { |
| first = _mm_castps_si128(_mm_move_ss(_mm_castsi128_ps(first),_mm_castsi128_ps(second))); |
| first = _mm_shuffle_epi32(first,0x39); |
| } |
| else if (Offset==2) |
| { |
| first = _mm_castps_si128(_mm_movehl_ps(_mm_castsi128_ps(first),_mm_castsi128_ps(first))); |
| first = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(first),_mm_castsi128_ps(second))); |
| } |
| else if (Offset==3) |
| { |
| first = _mm_castps_si128(_mm_move_ss(_mm_castsi128_ps(first),_mm_castsi128_ps(second))); |
| first = _mm_castps_si128(_mm_shuffle_ps(_mm_castsi128_ps(first),_mm_castsi128_ps(second),0x93)); |
| } |
| } |
| }; |
| |
| template<int Offset> |
| struct palign_impl<Offset,Packet2d> |
| { |
| static EIGEN_STRONG_INLINE void run(Packet2d& first, const Packet2d& second) |
| { |
| if (Offset==1) |
| { |
| first = _mm_castps_pd(_mm_movehl_ps(_mm_castpd_ps(first),_mm_castpd_ps(first))); |
| first = _mm_castps_pd(_mm_movelh_ps(_mm_castpd_ps(first),_mm_castpd_ps(second))); |
| } |
| } |
| }; |
| #endif |
| |
| template<> EIGEN_DEVICE_FUNC inline void |
| ptranspose(PacketBlock<Packet4f,4>& kernel) { |
| _MM_TRANSPOSE4_PS(kernel.packet[0], kernel.packet[1], kernel.packet[2], kernel.packet[3]); |
| } |
| |
| template<> EIGEN_DEVICE_FUNC inline void |
| ptranspose(PacketBlock<Packet2d,2>& kernel) { |
| __m128d tmp = _mm_unpackhi_pd(kernel.packet[0], kernel.packet[1]); |
| kernel.packet[0] = _mm_unpacklo_pd(kernel.packet[0], kernel.packet[1]); |
| kernel.packet[1] = tmp; |
| } |
| |
| template<> EIGEN_DEVICE_FUNC inline void |
| ptranspose(PacketBlock<Packet4i,4>& kernel) { |
| __m128i T0 = _mm_unpacklo_epi32(kernel.packet[0], kernel.packet[1]); |
| __m128i T1 = _mm_unpacklo_epi32(kernel.packet[2], kernel.packet[3]); |
| __m128i T2 = _mm_unpackhi_epi32(kernel.packet[0], kernel.packet[1]); |
| __m128i T3 = _mm_unpackhi_epi32(kernel.packet[2], kernel.packet[3]); |
| |
| kernel.packet[0] = _mm_unpacklo_epi64(T0, T1); |
| kernel.packet[1] = _mm_unpackhi_epi64(T0, T1); |
| kernel.packet[2] = _mm_unpacklo_epi64(T2, T3); |
| kernel.packet[3] = _mm_unpackhi_epi64(T2, T3); |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet4i pblend(const Selector<4>& ifPacket, const Packet4i& thenPacket, const Packet4i& elsePacket) { |
| const __m128i zero = _mm_setzero_si128(); |
| const __m128i select = _mm_set_epi32(ifPacket.select[3], ifPacket.select[2], ifPacket.select[1], ifPacket.select[0]); |
| __m128i false_mask = _mm_cmpeq_epi32(select, zero); |
| #ifdef EIGEN_VECTORIZE_SSE4_1 |
| return _mm_blendv_epi8(thenPacket, elsePacket, false_mask); |
| #else |
| return _mm_or_si128(_mm_andnot_si128(false_mask, thenPacket), _mm_and_si128(false_mask, elsePacket)); |
| #endif |
| } |
| template<> EIGEN_STRONG_INLINE Packet4f pblend(const Selector<4>& ifPacket, const Packet4f& thenPacket, const Packet4f& elsePacket) { |
| const __m128 zero = _mm_setzero_ps(); |
| const __m128 select = _mm_set_ps(ifPacket.select[3], ifPacket.select[2], ifPacket.select[1], ifPacket.select[0]); |
| __m128 false_mask = _mm_cmpeq_ps(select, zero); |
| #ifdef EIGEN_VECTORIZE_SSE4_1 |
| return _mm_blendv_ps(thenPacket, elsePacket, false_mask); |
| #else |
| return _mm_or_ps(_mm_andnot_ps(false_mask, thenPacket), _mm_and_ps(false_mask, elsePacket)); |
| #endif |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet2d pblend(const Selector<2>& ifPacket, const Packet2d& thenPacket, const Packet2d& elsePacket) { |
| const __m128d zero = _mm_setzero_pd(); |
| const __m128d select = _mm_set_pd(ifPacket.select[1], ifPacket.select[0]); |
| __m128d false_mask = _mm_cmpeq_pd(select, zero); |
| #ifdef EIGEN_VECTORIZE_SSE4_1 |
| return _mm_blendv_pd(thenPacket, elsePacket, false_mask); |
| #else |
| return _mm_or_pd(_mm_andnot_pd(false_mask, thenPacket), _mm_and_pd(false_mask, elsePacket)); |
| #endif |
| } |
| |
| } // end namespace internal |
| |
| } // end namespace Eigen |
| |
| #endif // EIGEN_PACKET_MATH_SSE_H |