00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015
00016
00017
00018
00019
00020
00021
00022
00023
00024
00025 #ifndef EIGEN_PACKET_MATH_SSE_H
00026 #define EIGEN_PACKET_MATH_SSE_H
00027
00028 namespace Eigen {
00029
00030 namespace internal {
00031
00032 #ifndef EIGEN_CACHEFRIENDLY_PRODUCT_THRESHOLD
00033 #define EIGEN_CACHEFRIENDLY_PRODUCT_THRESHOLD 8
00034 #endif
00035
00036 #ifndef EIGEN_ARCH_DEFAULT_NUMBER_OF_REGISTERS
00037 #define EIGEN_ARCH_DEFAULT_NUMBER_OF_REGISTERS (2*sizeof(void*))
00038 #endif
00039
00040 typedef __m128 Packet4f;
00041 typedef __m128i Packet4i;
00042 typedef __m128d Packet2d;
00043
00044 template<> struct is_arithmetic<__m128> { enum { value = true }; };
00045 template<> struct is_arithmetic<__m128i> { enum { value = true }; };
00046 template<> struct is_arithmetic<__m128d> { enum { value = true }; };
00047
00048 #define vec4f_swizzle1(v,p,q,r,s) \
00049 (_mm_castsi128_ps(_mm_shuffle_epi32( _mm_castps_si128(v), ((s)<<6|(r)<<4|(q)<<2|(p)))))
00050
00051 #define vec4i_swizzle1(v,p,q,r,s) \
00052 (_mm_shuffle_epi32( v, ((s)<<6|(r)<<4|(q)<<2|(p))))
00053
00054 #define vec2d_swizzle1(v,p,q) \
00055 (_mm_castsi128_pd(_mm_shuffle_epi32( _mm_castpd_si128(v), ((q*2+1)<<6|(q*2)<<4|(p*2+1)<<2|(p*2)))))
00056
00057 #define vec4f_swizzle2(a,b,p,q,r,s) \
00058 (_mm_shuffle_ps( (a), (b), ((s)<<6|(r)<<4|(q)<<2|(p))))
00059
00060 #define vec4i_swizzle2(a,b,p,q,r,s) \
00061 (_mm_castps_si128( (_mm_shuffle_ps( _mm_castsi128_ps(a), _mm_castsi128_ps(b), ((s)<<6|(r)<<4|(q)<<2|(p))))))
00062
00063 #define _EIGEN_DECLARE_CONST_Packet4f(NAME,X) \
00064 const Packet4f p4f_##NAME = pset1<Packet4f>(X)
00065
00066 #define _EIGEN_DECLARE_CONST_Packet4f_FROM_INT(NAME,X) \
00067 const Packet4f p4f_##NAME = _mm_castsi128_ps(pset1<Packet4i>(X))
00068
00069 #define _EIGEN_DECLARE_CONST_Packet4i(NAME,X) \
00070 const Packet4i p4i_##NAME = pset1<Packet4i>(X)
00071
00072
00073 template<> struct packet_traits<float> : default_packet_traits
00074 {
00075 typedef Packet4f type;
00076 enum {
00077 Vectorizable = 1,
00078 AlignedOnScalar = 1,
00079 size=4,
00080
00081 HasDiv = 1,
00082 HasSin = EIGEN_FAST_MATH,
00083 HasCos = EIGEN_FAST_MATH,
00084 HasLog = 1,
00085 HasExp = 1,
00086 HasSqrt = 1
00087 };
00088 };
00089 template<> struct packet_traits<double> : default_packet_traits
00090 {
00091 typedef Packet2d type;
00092 enum {
00093 Vectorizable = 1,
00094 AlignedOnScalar = 1,
00095 size=2,
00096
00097 HasDiv = 1
00098 };
00099 };
00100 template<> struct packet_traits<int> : default_packet_traits
00101 {
00102 typedef Packet4i type;
00103 enum {
00104
00105 Vectorizable = 1,
00106 AlignedOnScalar = 1,
00107 size=4
00108 };
00109 };
00110
00111 template<> struct unpacket_traits<Packet4f> { typedef float type; enum {size=4}; };
00112 template<> struct unpacket_traits<Packet2d> { typedef double type; enum {size=2}; };
00113 template<> struct unpacket_traits<Packet4i> { typedef int type; enum {size=4}; };
00114
00115 #if defined(_MSC_VER) && (_MSC_VER==1500)
00116
00117
00118
00119 template<> EIGEN_STRONG_INLINE Packet4f pset1<Packet4f>(const float& from) { return _mm_set_ps(from,from,from,from); }
00120 template<> EIGEN_STRONG_INLINE Packet2d pset1<Packet2d>(const double& from) { return _mm_set_pd(from,from); }
00121 template<> EIGEN_STRONG_INLINE Packet4i pset1<Packet4i>(const int& from) { return _mm_set_epi32(from,from,from,from); }
00122 #else
00123 template<> EIGEN_STRONG_INLINE Packet4f pset1<Packet4f>(const float& from) { return _mm_set1_ps(from); }
00124 template<> EIGEN_STRONG_INLINE Packet2d pset1<Packet2d>(const double& from) { return _mm_set1_pd(from); }
00125 template<> EIGEN_STRONG_INLINE Packet4i pset1<Packet4i>(const int& from) { return _mm_set1_epi32(from); }
00126 #endif
00127
00128 template<> EIGEN_STRONG_INLINE Packet4f plset<float>(const float& a) { return _mm_add_ps(pset1<Packet4f>(a), _mm_set_ps(3,2,1,0)); }
00129 template<> EIGEN_STRONG_INLINE Packet2d plset<double>(const double& a) { return _mm_add_pd(pset1<Packet2d>(a),_mm_set_pd(1,0)); }
00130 template<> EIGEN_STRONG_INLINE Packet4i plset<int>(const int& a) { return _mm_add_epi32(pset1<Packet4i>(a),_mm_set_epi32(3,2,1,0)); }
00131
00132 template<> EIGEN_STRONG_INLINE Packet4f padd<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_add_ps(a,b); }
00133 template<> EIGEN_STRONG_INLINE Packet2d padd<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_add_pd(a,b); }
00134 template<> EIGEN_STRONG_INLINE Packet4i padd<Packet4i>(const Packet4i& a, const Packet4i& b) { return _mm_add_epi32(a,b); }
00135
00136 template<> EIGEN_STRONG_INLINE Packet4f psub<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_sub_ps(a,b); }
00137 template<> EIGEN_STRONG_INLINE Packet2d psub<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_sub_pd(a,b); }
00138 template<> EIGEN_STRONG_INLINE Packet4i psub<Packet4i>(const Packet4i& a, const Packet4i& b) { return _mm_sub_epi32(a,b); }
00139
00140 template<> EIGEN_STRONG_INLINE Packet4f pnegate(const Packet4f& a)
00141 {
00142 const Packet4f mask = _mm_castsi128_ps(_mm_setr_epi32(0x80000000,0x80000000,0x80000000,0x80000000));
00143 return _mm_xor_ps(a,mask);
00144 }
00145 template<> EIGEN_STRONG_INLINE Packet2d pnegate(const Packet2d& a)
00146 {
00147 const Packet2d mask = _mm_castsi128_pd(_mm_setr_epi32(0x0,0x80000000,0x0,0x80000000));
00148 return _mm_xor_pd(a,mask);
00149 }
00150 template<> EIGEN_STRONG_INLINE Packet4i pnegate(const Packet4i& a)
00151 {
00152 return psub(_mm_setr_epi32(0,0,0,0), a);
00153 }
00154
00155 template<> EIGEN_STRONG_INLINE Packet4f pmul<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_mul_ps(a,b); }
00156 template<> EIGEN_STRONG_INLINE Packet2d pmul<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_mul_pd(a,b); }
00157 template<> EIGEN_STRONG_INLINE Packet4i pmul<Packet4i>(const Packet4i& a, const Packet4i& b)
00158 {
00159 #ifdef EIGEN_VECTORIZE_SSE4_1
00160 return _mm_mullo_epi32(a,b);
00161 #else
00162
00163 return vec4i_swizzle1(
00164 vec4i_swizzle2(
00165 _mm_mul_epu32(a,b),
00166 _mm_mul_epu32(vec4i_swizzle1(a,1,0,3,2),
00167 vec4i_swizzle1(b,1,0,3,2)),
00168 0,2,0,2),
00169 0,2,1,3);
00170 #endif
00171 }
00172
00173 template<> EIGEN_STRONG_INLINE Packet4f pdiv<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_div_ps(a,b); }
00174 template<> EIGEN_STRONG_INLINE Packet2d pdiv<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_div_pd(a,b); }
00175 template<> EIGEN_STRONG_INLINE Packet4i pdiv<Packet4i>(const Packet4i& , const Packet4i& )
00176 { eigen_assert(false && "packet integer division are not supported by SSE");
00177 return pset1<Packet4i>(0);
00178 }
00179
00180
00181 template<> EIGEN_STRONG_INLINE Packet4i pmadd(const Packet4i& a, const Packet4i& b, const Packet4i& c) { return padd(pmul(a,b), c); }
00182
00183 template<> EIGEN_STRONG_INLINE Packet4f pmin<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_min_ps(a,b); }
00184 template<> EIGEN_STRONG_INLINE Packet2d pmin<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_min_pd(a,b); }
00185 template<> EIGEN_STRONG_INLINE Packet4i pmin<Packet4i>(const Packet4i& a, const Packet4i& b)
00186 {
00187
00188 Packet4i mask = _mm_cmplt_epi32(a,b);
00189 return _mm_or_si128(_mm_and_si128(mask,a),_mm_andnot_si128(mask,b));
00190 }
00191
00192 template<> EIGEN_STRONG_INLINE Packet4f pmax<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_max_ps(a,b); }
00193 template<> EIGEN_STRONG_INLINE Packet2d pmax<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_max_pd(a,b); }
00194 template<> EIGEN_STRONG_INLINE Packet4i pmax<Packet4i>(const Packet4i& a, const Packet4i& b)
00195 {
00196
00197 Packet4i mask = _mm_cmpgt_epi32(a,b);
00198 return _mm_or_si128(_mm_and_si128(mask,a),_mm_andnot_si128(mask,b));
00199 }
00200
00201 template<> EIGEN_STRONG_INLINE Packet4f pand<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_and_ps(a,b); }
00202 template<> EIGEN_STRONG_INLINE Packet2d pand<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_and_pd(a,b); }
00203 template<> EIGEN_STRONG_INLINE Packet4i pand<Packet4i>(const Packet4i& a, const Packet4i& b) { return _mm_and_si128(a,b); }
00204
00205 template<> EIGEN_STRONG_INLINE Packet4f por<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_or_ps(a,b); }
00206 template<> EIGEN_STRONG_INLINE Packet2d por<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_or_pd(a,b); }
00207 template<> EIGEN_STRONG_INLINE Packet4i por<Packet4i>(const Packet4i& a, const Packet4i& b) { return _mm_or_si128(a,b); }
00208
00209 template<> EIGEN_STRONG_INLINE Packet4f pxor<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_xor_ps(a,b); }
00210 template<> EIGEN_STRONG_INLINE Packet2d pxor<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_xor_pd(a,b); }
00211 template<> EIGEN_STRONG_INLINE Packet4i pxor<Packet4i>(const Packet4i& a, const Packet4i& b) { return _mm_xor_si128(a,b); }
00212
00213 template<> EIGEN_STRONG_INLINE Packet4f pandnot<Packet4f>(const Packet4f& a, const Packet4f& b) { return _mm_andnot_ps(a,b); }
00214 template<> EIGEN_STRONG_INLINE Packet2d pandnot<Packet2d>(const Packet2d& a, const Packet2d& b) { return _mm_andnot_pd(a,b); }
00215 template<> EIGEN_STRONG_INLINE Packet4i pandnot<Packet4i>(const Packet4i& a, const Packet4i& b) { return _mm_andnot_si128(a,b); }
00216
00217 template<> EIGEN_STRONG_INLINE Packet4f pload<Packet4f>(const float* from) { EIGEN_DEBUG_ALIGNED_LOAD return _mm_load_ps(from); }
00218 template<> EIGEN_STRONG_INLINE Packet2d pload<Packet2d>(const double* from) { EIGEN_DEBUG_ALIGNED_LOAD return _mm_load_pd(from); }
00219 template<> EIGEN_STRONG_INLINE Packet4i pload<Packet4i>(const int* from) { EIGEN_DEBUG_ALIGNED_LOAD return _mm_load_si128(reinterpret_cast<const Packet4i*>(from)); }
00220
00221 #if defined(_MSC_VER)
00222 template<> EIGEN_STRONG_INLINE Packet4f ploadu<Packet4f>(const float* from) {
00223 EIGEN_DEBUG_UNALIGNED_LOAD
00224 #if (_MSC_VER==1600)
00225
00226
00227
00228
00229 __m128 res = _mm_loadl_pi(_mm_set1_ps(0.0f), (const __m64*)(from));
00230 res = _mm_loadh_pi(res, (const __m64*)(from+2));
00231 return res;
00232 #else
00233 return _mm_loadu_ps(from);
00234 #endif
00235 }
00236 template<> EIGEN_STRONG_INLINE Packet2d ploadu<Packet2d>(const double* from) { EIGEN_DEBUG_UNALIGNED_LOAD return _mm_loadu_pd(from); }
00237 template<> EIGEN_STRONG_INLINE Packet4i ploadu<Packet4i>(const int* from) { EIGEN_DEBUG_UNALIGNED_LOAD return _mm_loadu_si128(reinterpret_cast<const Packet4i*>(from)); }
00238 #else
00239
00240
00241
00242
00243
00244
00245
00246 #if defined(__GNUC__) && defined(__i386__)
00247
00248 #define EIGEN_AVOID_CUSTOM_UNALIGNED_LOADS 1
00249 #elif defined(__clang__)
00250
00251 #define EIGEN_AVOID_CUSTOM_UNALIGNED_LOADS 1
00252 #else
00253 #define EIGEN_AVOID_CUSTOM_UNALIGNED_LOADS 0
00254 #endif
00255
00256 template<> EIGEN_STRONG_INLINE Packet4f ploadu<Packet4f>(const float* from)
00257 {
00258 EIGEN_DEBUG_UNALIGNED_LOAD
00259 #if EIGEN_AVOID_CUSTOM_UNALIGNED_LOADS
00260 return _mm_loadu_ps(from);
00261 #else
00262 __m128d res;
00263 res = _mm_load_sd((const double*)(from)) ;
00264 res = _mm_loadh_pd(res, (const double*)(from+2)) ;
00265 return _mm_castpd_ps(res);
00266 #endif
00267 }
00268 template<> EIGEN_STRONG_INLINE Packet2d ploadu<Packet2d>(const double* from)
00269 {
00270 EIGEN_DEBUG_UNALIGNED_LOAD
00271 #if EIGEN_AVOID_CUSTOM_UNALIGNED_LOADS
00272 return _mm_loadu_pd(from);
00273 #else
00274 __m128d res;
00275 res = _mm_load_sd(from) ;
00276 res = _mm_loadh_pd(res,from+1);
00277 return res;
00278 #endif
00279 }
00280 template<> EIGEN_STRONG_INLINE Packet4i ploadu<Packet4i>(const int* from)
00281 {
00282 EIGEN_DEBUG_UNALIGNED_LOAD
00283 #if EIGEN_AVOID_CUSTOM_UNALIGNED_LOADS
00284 return _mm_loadu_si128(reinterpret_cast<const Packet4i*>(from));
00285 #else
00286 __m128d res;
00287 res = _mm_load_sd((const double*)(from)) ;
00288 res = _mm_loadh_pd(res, (const double*)(from+2)) ;
00289 return _mm_castpd_si128(res);
00290 #endif
00291 }
00292 #endif
00293
00294 template<> EIGEN_STRONG_INLINE Packet4f ploaddup<Packet4f>(const float* from)
00295 {
00296 return vec4f_swizzle1(_mm_castpd_ps(_mm_load_sd(reinterpret_cast<const double*>(from))), 0, 0, 1, 1);
00297 }
00298 template<> EIGEN_STRONG_INLINE Packet2d ploaddup<Packet2d>(const double* from)
00299 { return pset1<Packet2d>(from[0]); }
00300 template<> EIGEN_STRONG_INLINE Packet4i ploaddup<Packet4i>(const int* from)
00301 {
00302 Packet4i tmp;
00303 tmp = _mm_loadl_epi64(reinterpret_cast<const Packet4i*>(from));
00304 return vec4i_swizzle1(tmp, 0, 0, 1, 1);
00305 }
00306
00307 template<> EIGEN_STRONG_INLINE void pstore<float>(float* to, const Packet4f& from) { EIGEN_DEBUG_ALIGNED_STORE _mm_store_ps(to, from); }
00308 template<> EIGEN_STRONG_INLINE void pstore<double>(double* to, const Packet2d& from) { EIGEN_DEBUG_ALIGNED_STORE _mm_store_pd(to, from); }
00309 template<> EIGEN_STRONG_INLINE void pstore<int>(int* to, const Packet4i& from) { EIGEN_DEBUG_ALIGNED_STORE _mm_store_si128(reinterpret_cast<Packet4i*>(to), from); }
00310
00311 template<> EIGEN_STRONG_INLINE void pstoreu<double>(double* to, const Packet2d& from) {
00312 EIGEN_DEBUG_UNALIGNED_STORE
00313 _mm_storel_pd((to), from);
00314 _mm_storeh_pd((to+1), from);
00315 }
00316 template<> EIGEN_STRONG_INLINE void pstoreu<float>(float* to, const Packet4f& from) { EIGEN_DEBUG_UNALIGNED_STORE pstoreu(reinterpret_cast<double*>(to), _mm_castps_pd(from)); }
00317 template<> EIGEN_STRONG_INLINE void pstoreu<int>(int* to, const Packet4i& from) { EIGEN_DEBUG_UNALIGNED_STORE pstoreu(reinterpret_cast<double*>(to), _mm_castsi128_pd(from)); }
00318
00319
00320 template<> EIGEN_STRONG_INLINE void pstore1<Packet4f>(float* to, const float& a)
00321 {
00322 Packet4f pa = _mm_set_ss(a);
00323 pstore(to, vec4f_swizzle1(pa,0,0,0,0));
00324 }
00325
00326 template<> EIGEN_STRONG_INLINE void pstore1<Packet2d>(double* to, const double& a)
00327 {
00328 Packet2d pa = _mm_set_sd(a);
00329 pstore(to, vec2d_swizzle1(pa,0,0));
00330 }
00331
00332 template<> EIGEN_STRONG_INLINE void prefetch<float>(const float* addr) { _mm_prefetch((const char*)(addr), _MM_HINT_T0); }
00333 template<> EIGEN_STRONG_INLINE void prefetch<double>(const double* addr) { _mm_prefetch((const char*)(addr), _MM_HINT_T0); }
00334 template<> EIGEN_STRONG_INLINE void prefetch<int>(const int* addr) { _mm_prefetch((const char*)(addr), _MM_HINT_T0); }
00335
00336 #if defined(_MSC_VER) && defined(_WIN64) && !defined(__INTEL_COMPILER)
00337
00338
00339 template<> EIGEN_STRONG_INLINE float pfirst<Packet4f>(const Packet4f& a) { return a.m128_f32[0]; }
00340 template<> EIGEN_STRONG_INLINE double pfirst<Packet2d>(const Packet2d& a) { return a.m128d_f64[0]; }
00341 template<> EIGEN_STRONG_INLINE int pfirst<Packet4i>(const Packet4i& a) { int x = _mm_cvtsi128_si32(a); return x; }
00342 #elif defined(_MSC_VER) && !defined(__INTEL_COMPILER)
00343
00344 template<> EIGEN_STRONG_INLINE float pfirst<Packet4f>(const Packet4f& a) { float x = _mm_cvtss_f32(a); return x; }
00345 template<> EIGEN_STRONG_INLINE double pfirst<Packet2d>(const Packet2d& a) { double x = _mm_cvtsd_f64(a); return x; }
00346 template<> EIGEN_STRONG_INLINE int pfirst<Packet4i>(const Packet4i& a) { int x = _mm_cvtsi128_si32(a); return x; }
00347 #else
00348 template<> EIGEN_STRONG_INLINE float pfirst<Packet4f>(const Packet4f& a) { return _mm_cvtss_f32(a); }
00349 template<> EIGEN_STRONG_INLINE double pfirst<Packet2d>(const Packet2d& a) { return _mm_cvtsd_f64(a); }
00350 template<> EIGEN_STRONG_INLINE int pfirst<Packet4i>(const Packet4i& a) { return _mm_cvtsi128_si32(a); }
00351 #endif
00352
00353 template<> EIGEN_STRONG_INLINE Packet4f preverse(const Packet4f& a)
00354 { return _mm_shuffle_ps(a,a,0x1B); }
00355 template<> EIGEN_STRONG_INLINE Packet2d preverse(const Packet2d& a)
00356 { return _mm_shuffle_pd(a,a,0x1); }
00357 template<> EIGEN_STRONG_INLINE Packet4i preverse(const Packet4i& a)
00358 { return _mm_shuffle_epi32(a,0x1B); }
00359
00360
00361 template<> EIGEN_STRONG_INLINE Packet4f pabs(const Packet4f& a)
00362 {
00363 const Packet4f mask = _mm_castsi128_ps(_mm_setr_epi32(0x7FFFFFFF,0x7FFFFFFF,0x7FFFFFFF,0x7FFFFFFF));
00364 return _mm_and_ps(a,mask);
00365 }
00366 template<> EIGEN_STRONG_INLINE Packet2d pabs(const Packet2d& a)
00367 {
00368 const Packet2d mask = _mm_castsi128_pd(_mm_setr_epi32(0xFFFFFFFF,0x7FFFFFFF,0xFFFFFFFF,0x7FFFFFFF));
00369 return _mm_and_pd(a,mask);
00370 }
00371 template<> EIGEN_STRONG_INLINE Packet4i pabs(const Packet4i& a)
00372 {
00373 #ifdef EIGEN_VECTORIZE_SSSE3
00374 return _mm_abs_epi32(a);
00375 #else
00376 Packet4i aux = _mm_srai_epi32(a,31);
00377 return _mm_sub_epi32(_mm_xor_si128(a,aux),aux);
00378 #endif
00379 }
00380
00381 EIGEN_STRONG_INLINE void punpackp(Packet4f* vecs)
00382 {
00383 vecs[1] = _mm_castsi128_ps(_mm_shuffle_epi32(_mm_castps_si128(vecs[0]), 0x55));
00384 vecs[2] = _mm_castsi128_ps(_mm_shuffle_epi32(_mm_castps_si128(vecs[0]), 0xAA));
00385 vecs[3] = _mm_castsi128_ps(_mm_shuffle_epi32(_mm_castps_si128(vecs[0]), 0xFF));
00386 vecs[0] = _mm_castsi128_ps(_mm_shuffle_epi32(_mm_castps_si128(vecs[0]), 0x00));
00387 }
00388
00389 #ifdef EIGEN_VECTORIZE_SSE3
00390
00391 template<> EIGEN_STRONG_INLINE Packet4f preduxp<Packet4f>(const Packet4f* vecs)
00392 {
00393 return _mm_hadd_ps(_mm_hadd_ps(vecs[0], vecs[1]),_mm_hadd_ps(vecs[2], vecs[3]));
00394 }
00395 template<> EIGEN_STRONG_INLINE Packet2d preduxp<Packet2d>(const Packet2d* vecs)
00396 {
00397 return _mm_hadd_pd(vecs[0], vecs[1]);
00398 }
00399
00400
00401
00402
00403
00404
00405 template<> EIGEN_STRONG_INLINE float predux<Packet4f>(const Packet4f& a)
00406 {
00407 Packet4f tmp0 = _mm_hadd_ps(a,a);
00408 return pfirst(_mm_hadd_ps(tmp0, tmp0));
00409 }
00410
00411 template<> EIGEN_STRONG_INLINE double predux<Packet2d>(const Packet2d& a) { return pfirst(_mm_hadd_pd(a, a)); }
00412
00413
00414
00415
00416
00417
00418
00419 #else
00420
00421 template<> EIGEN_STRONG_INLINE float predux<Packet4f>(const Packet4f& a)
00422 {
00423 Packet4f tmp = _mm_add_ps(a, _mm_movehl_ps(a,a));
00424 return pfirst(_mm_add_ss(tmp, _mm_shuffle_ps(tmp,tmp, 1)));
00425 }
00426 template<> EIGEN_STRONG_INLINE double predux<Packet2d>(const Packet2d& a)
00427 {
00428 return pfirst(_mm_add_sd(a, _mm_unpackhi_pd(a,a)));
00429 }
00430
00431 template<> EIGEN_STRONG_INLINE Packet4f preduxp<Packet4f>(const Packet4f* vecs)
00432 {
00433 Packet4f tmp0, tmp1, tmp2;
00434 tmp0 = _mm_unpacklo_ps(vecs[0], vecs[1]);
00435 tmp1 = _mm_unpackhi_ps(vecs[0], vecs[1]);
00436 tmp2 = _mm_unpackhi_ps(vecs[2], vecs[3]);
00437 tmp0 = _mm_add_ps(tmp0, tmp1);
00438 tmp1 = _mm_unpacklo_ps(vecs[2], vecs[3]);
00439 tmp1 = _mm_add_ps(tmp1, tmp2);
00440 tmp2 = _mm_movehl_ps(tmp1, tmp0);
00441 tmp0 = _mm_movelh_ps(tmp0, tmp1);
00442 return _mm_add_ps(tmp0, tmp2);
00443 }
00444
00445 template<> EIGEN_STRONG_INLINE Packet2d preduxp<Packet2d>(const Packet2d* vecs)
00446 {
00447 return _mm_add_pd(_mm_unpacklo_pd(vecs[0], vecs[1]), _mm_unpackhi_pd(vecs[0], vecs[1]));
00448 }
00449 #endif // SSE3
00450
00451 template<> EIGEN_STRONG_INLINE int predux<Packet4i>(const Packet4i& a)
00452 {
00453 Packet4i tmp = _mm_add_epi32(a, _mm_unpackhi_epi64(a,a));
00454 return pfirst(tmp) + pfirst(_mm_shuffle_epi32(tmp, 1));
00455 }
00456
00457 template<> EIGEN_STRONG_INLINE Packet4i preduxp<Packet4i>(const Packet4i* vecs)
00458 {
00459 Packet4i tmp0, tmp1, tmp2;
00460 tmp0 = _mm_unpacklo_epi32(vecs[0], vecs[1]);
00461 tmp1 = _mm_unpackhi_epi32(vecs[0], vecs[1]);
00462 tmp2 = _mm_unpackhi_epi32(vecs[2], vecs[3]);
00463 tmp0 = _mm_add_epi32(tmp0, tmp1);
00464 tmp1 = _mm_unpacklo_epi32(vecs[2], vecs[3]);
00465 tmp1 = _mm_add_epi32(tmp1, tmp2);
00466 tmp2 = _mm_unpacklo_epi64(tmp0, tmp1);
00467 tmp0 = _mm_unpackhi_epi64(tmp0, tmp1);
00468 return _mm_add_epi32(tmp0, tmp2);
00469 }
00470
00471
00472
00473
00474 template<> EIGEN_STRONG_INLINE float predux_mul<Packet4f>(const Packet4f& a)
00475 {
00476 Packet4f tmp = _mm_mul_ps(a, _mm_movehl_ps(a,a));
00477 return pfirst(_mm_mul_ss(tmp, _mm_shuffle_ps(tmp,tmp, 1)));
00478 }
00479 template<> EIGEN_STRONG_INLINE double predux_mul<Packet2d>(const Packet2d& a)
00480 {
00481 return pfirst(_mm_mul_sd(a, _mm_unpackhi_pd(a,a)));
00482 }
00483 template<> EIGEN_STRONG_INLINE int predux_mul<Packet4i>(const Packet4i& a)
00484 {
00485
00486
00487
00488 EIGEN_ALIGN16 int aux[4];
00489 pstore(aux, a);
00490 return (aux[0] * aux[1]) * (aux[2] * aux[3]);;
00491 }
00492
00493
00494 template<> EIGEN_STRONG_INLINE float predux_min<Packet4f>(const Packet4f& a)
00495 {
00496 Packet4f tmp = _mm_min_ps(a, _mm_movehl_ps(a,a));
00497 return pfirst(_mm_min_ss(tmp, _mm_shuffle_ps(tmp,tmp, 1)));
00498 }
00499 template<> EIGEN_STRONG_INLINE double predux_min<Packet2d>(const Packet2d& a)
00500 {
00501 return pfirst(_mm_min_sd(a, _mm_unpackhi_pd(a,a)));
00502 }
00503 template<> EIGEN_STRONG_INLINE int predux_min<Packet4i>(const Packet4i& a)
00504 {
00505
00506
00507 EIGEN_ALIGN16 int aux[4];
00508 pstore(aux, a);
00509 register int aux0 = aux[0]<aux[1] ? aux[0] : aux[1];
00510 register int aux2 = aux[2]<aux[3] ? aux[2] : aux[3];
00511 return aux0<aux2 ? aux0 : aux2;
00512 }
00513
00514
00515 template<> EIGEN_STRONG_INLINE float predux_max<Packet4f>(const Packet4f& a)
00516 {
00517 Packet4f tmp = _mm_max_ps(a, _mm_movehl_ps(a,a));
00518 return pfirst(_mm_max_ss(tmp, _mm_shuffle_ps(tmp,tmp, 1)));
00519 }
00520 template<> EIGEN_STRONG_INLINE double predux_max<Packet2d>(const Packet2d& a)
00521 {
00522 return pfirst(_mm_max_sd(a, _mm_unpackhi_pd(a,a)));
00523 }
00524 template<> EIGEN_STRONG_INLINE int predux_max<Packet4i>(const Packet4i& a)
00525 {
00526
00527
00528 EIGEN_ALIGN16 int aux[4];
00529 pstore(aux, a);
00530 register int aux0 = aux[0]>aux[1] ? aux[0] : aux[1];
00531 register int aux2 = aux[2]>aux[3] ? aux[2] : aux[3];
00532 return aux0>aux2 ? aux0 : aux2;
00533 }
00534
00535 #if (defined __GNUC__)
00536
00537
00538
00539
00540
00541
00542
00543
00544
00545
00546
00547
00548 #endif
00549
00550 #ifdef EIGEN_VECTORIZE_SSSE3
00551
00552 template<int Offset>
00553 struct palign_impl<Offset,Packet4f>
00554 {
00555 static EIGEN_STRONG_INLINE void run(Packet4f& first, const Packet4f& second)
00556 {
00557 if (Offset!=0)
00558 first = _mm_castsi128_ps(_mm_alignr_epi8(_mm_castps_si128(second), _mm_castps_si128(first), Offset*4));
00559 }
00560 };
00561
00562 template<int Offset>
00563 struct palign_impl<Offset,Packet4i>
00564 {
00565 static EIGEN_STRONG_INLINE void run(Packet4i& first, const Packet4i& second)
00566 {
00567 if (Offset!=0)
00568 first = _mm_alignr_epi8(second,first, Offset*4);
00569 }
00570 };
00571
00572 template<int Offset>
00573 struct palign_impl<Offset,Packet2d>
00574 {
00575 static EIGEN_STRONG_INLINE void run(Packet2d& first, const Packet2d& second)
00576 {
00577 if (Offset==1)
00578 first = _mm_castsi128_pd(_mm_alignr_epi8(_mm_castpd_si128(second), _mm_castpd_si128(first), 8));
00579 }
00580 };
00581 #else
00582
00583 template<int Offset>
00584 struct palign_impl<Offset,Packet4f>
00585 {
00586 static EIGEN_STRONG_INLINE void run(Packet4f& first, const Packet4f& second)
00587 {
00588 if (Offset==1)
00589 {
00590 first = _mm_move_ss(first,second);
00591 first = _mm_castsi128_ps(_mm_shuffle_epi32(_mm_castps_si128(first),0x39));
00592 }
00593 else if (Offset==2)
00594 {
00595 first = _mm_movehl_ps(first,first);
00596 first = _mm_movelh_ps(first,second);
00597 }
00598 else if (Offset==3)
00599 {
00600 first = _mm_move_ss(first,second);
00601 first = _mm_shuffle_ps(first,second,0x93);
00602 }
00603 }
00604 };
00605
00606 template<int Offset>
00607 struct palign_impl<Offset,Packet4i>
00608 {
00609 static EIGEN_STRONG_INLINE void run(Packet4i& first, const Packet4i& second)
00610 {
00611 if (Offset==1)
00612 {
00613 first = _mm_castps_si128(_mm_move_ss(_mm_castsi128_ps(first),_mm_castsi128_ps(second)));
00614 first = _mm_shuffle_epi32(first,0x39);
00615 }
00616 else if (Offset==2)
00617 {
00618 first = _mm_castps_si128(_mm_movehl_ps(_mm_castsi128_ps(first),_mm_castsi128_ps(first)));
00619 first = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(first),_mm_castsi128_ps(second)));
00620 }
00621 else if (Offset==3)
00622 {
00623 first = _mm_castps_si128(_mm_move_ss(_mm_castsi128_ps(first),_mm_castsi128_ps(second)));
00624 first = _mm_castps_si128(_mm_shuffle_ps(_mm_castsi128_ps(first),_mm_castsi128_ps(second),0x93));
00625 }
00626 }
00627 };
00628
00629 template<int Offset>
00630 struct palign_impl<Offset,Packet2d>
00631 {
00632 static EIGEN_STRONG_INLINE void run(Packet2d& first, const Packet2d& second)
00633 {
00634 if (Offset==1)
00635 {
00636 first = _mm_castps_pd(_mm_movehl_ps(_mm_castpd_ps(first),_mm_castpd_ps(first)));
00637 first = _mm_castps_pd(_mm_movelh_ps(_mm_castpd_ps(first),_mm_castpd_ps(second)));
00638 }
00639 }
00640 };
00641 #endif
00642
00643 }
00644
00645 }
00646
00647 #endif // EIGEN_PACKET_MATH_SSE_H