00001
00002
00003
00004
00005
00006
00007
00008
00009
00010 #ifndef EIGEN_COMPLEX_SSE_H
00011 #define EIGEN_COMPLEX_SSE_H
00012
00013 namespace Eigen {
00014
00015 namespace internal {
00016
00017
00018 struct Packet2cf
00019 {
00020 EIGEN_STRONG_INLINE Packet2cf() {}
00021 EIGEN_STRONG_INLINE explicit Packet2cf(const __m128& a) : v(a) {}
00022 __m128 v;
00023 };
00024
00025 template<> struct packet_traits<std::complex<float> > : default_packet_traits
00026 {
00027 typedef Packet2cf type;
00028 enum {
00029 Vectorizable = 1,
00030 AlignedOnScalar = 1,
00031 size = 2,
00032
00033 HasAdd = 1,
00034 HasSub = 1,
00035 HasMul = 1,
00036 HasDiv = 1,
00037 HasNegate = 1,
00038 HasAbs = 0,
00039 HasAbs2 = 0,
00040 HasMin = 0,
00041 HasMax = 0,
00042 HasSetLinear = 0
00043 };
00044 };
00045
00046 template<> struct unpacket_traits<Packet2cf> { typedef std::complex<float> type; enum {size=2}; };
00047
00048 template<> EIGEN_STRONG_INLINE Packet2cf padd<Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_add_ps(a.v,b.v)); }
00049 template<> EIGEN_STRONG_INLINE Packet2cf psub<Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_sub_ps(a.v,b.v)); }
00050 template<> EIGEN_STRONG_INLINE Packet2cf pnegate(const Packet2cf& a)
00051 {
00052 const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x80000000,0x80000000,0x80000000,0x80000000));
00053 return Packet2cf(_mm_xor_ps(a.v,mask));
00054 }
00055 template<> EIGEN_STRONG_INLINE Packet2cf pconj(const Packet2cf& a)
00056 {
00057 const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x00000000,0x80000000,0x00000000,0x80000000));
00058 return Packet2cf(_mm_xor_ps(a.v,mask));
00059 }
00060
00061 template<> EIGEN_STRONG_INLINE Packet2cf pmul<Packet2cf>(const Packet2cf& a, const Packet2cf& b)
00062 {
00063
00064 #ifdef EIGEN_VECTORIZE_SSE3
00065 return Packet2cf(_mm_addsub_ps(_mm_mul_ps(_mm_moveldup_ps(a.v), b.v),
00066 _mm_mul_ps(_mm_movehdup_ps(a.v),
00067 vec4f_swizzle1(b.v, 1, 0, 3, 2))));
00068
00069
00070
00071 #else
00072 const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x80000000,0x00000000,0x80000000,0x00000000));
00073 return Packet2cf(_mm_add_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 0, 0, 2, 2), b.v),
00074 _mm_xor_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 1, 1, 3, 3),
00075 vec4f_swizzle1(b.v, 1, 0, 3, 2)), mask)));
00076 #endif
00077 }
00078
00079 template<> EIGEN_STRONG_INLINE Packet2cf pand <Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_and_ps(a.v,b.v)); }
00080 template<> EIGEN_STRONG_INLINE Packet2cf por <Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_or_ps(a.v,b.v)); }
00081 template<> EIGEN_STRONG_INLINE Packet2cf pxor <Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_xor_ps(a.v,b.v)); }
00082 template<> EIGEN_STRONG_INLINE Packet2cf pandnot<Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_andnot_ps(a.v,b.v)); }
00083
00084 template<> EIGEN_STRONG_INLINE Packet2cf pload <Packet2cf>(const std::complex<float>* from) { EIGEN_DEBUG_ALIGNED_LOAD return Packet2cf(pload<Packet4f>(&numext::real_ref(*from))); }
00085 template<> EIGEN_STRONG_INLINE Packet2cf ploadu<Packet2cf>(const std::complex<float>* from) { EIGEN_DEBUG_UNALIGNED_LOAD return Packet2cf(ploadu<Packet4f>(&numext::real_ref(*from))); }
00086
00087 template<> EIGEN_STRONG_INLINE Packet2cf pset1<Packet2cf>(const std::complex<float>& from)
00088 {
00089 Packet2cf res;
00090 #if EIGEN_GNUC_AT_MOST(4,2)
00091
00092 res.v = _mm_loadl_pi(_mm_set1_ps(0.0f), reinterpret_cast<const __m64*>(&from));
00093 #elif EIGEN_GNUC_AT_LEAST(4,6)
00094
00095 #pragma GCC diagnostic push
00096 #pragma GCC diagnostic ignored "-Wuninitialized"
00097 res.v = _mm_loadl_pi(res.v, (const __m64*)&from);
00098 #pragma GCC diagnostic pop
00099 #else
00100 res.v = _mm_loadl_pi(res.v, (const __m64*)&from);
00101 #endif
00102 return Packet2cf(_mm_movelh_ps(res.v,res.v));
00103 }
00104
00105 template<> EIGEN_STRONG_INLINE Packet2cf ploaddup<Packet2cf>(const std::complex<float>* from) { return pset1<Packet2cf>(*from); }
00106
00107 template<> EIGEN_STRONG_INLINE void pstore <std::complex<float> >(std::complex<float> * to, const Packet2cf& from) { EIGEN_DEBUG_ALIGNED_STORE pstore(&numext::real_ref(*to), from.v); }
00108 template<> EIGEN_STRONG_INLINE void pstoreu<std::complex<float> >(std::complex<float> * to, const Packet2cf& from) { EIGEN_DEBUG_UNALIGNED_STORE pstoreu(&numext::real_ref(*to), from.v); }
00109
00110 template<> EIGEN_STRONG_INLINE void prefetch<std::complex<float> >(const std::complex<float> * addr) { _mm_prefetch((const char*)(addr), _MM_HINT_T0); }
00111
00112 template<> EIGEN_STRONG_INLINE std::complex<float> pfirst<Packet2cf>(const Packet2cf& a)
00113 {
00114 #if EIGEN_GNUC_AT_MOST(4,3)
00115
00116
00117 EIGEN_ALIGN16 std::complex<float> res[2];
00118 _mm_store_ps((float*)res, a.v);
00119 return res[0];
00120 #else
00121 std::complex<float> res;
00122 _mm_storel_pi((__m64*)&res, a.v);
00123 return res;
00124 #endif
00125 }
00126
00127 template<> EIGEN_STRONG_INLINE Packet2cf preverse(const Packet2cf& a) { return Packet2cf(_mm_castpd_ps(preverse(_mm_castps_pd(a.v)))); }
00128
00129 template<> EIGEN_STRONG_INLINE std::complex<float> predux<Packet2cf>(const Packet2cf& a)
00130 {
00131 return pfirst(Packet2cf(_mm_add_ps(a.v, _mm_movehl_ps(a.v,a.v))));
00132 }
00133
00134 template<> EIGEN_STRONG_INLINE Packet2cf preduxp<Packet2cf>(const Packet2cf* vecs)
00135 {
00136 return Packet2cf(_mm_add_ps(_mm_movelh_ps(vecs[0].v,vecs[1].v), _mm_movehl_ps(vecs[1].v,vecs[0].v)));
00137 }
00138
00139 template<> EIGEN_STRONG_INLINE std::complex<float> predux_mul<Packet2cf>(const Packet2cf& a)
00140 {
00141 return pfirst(pmul(a, Packet2cf(_mm_movehl_ps(a.v,a.v))));
00142 }
00143
00144 template<int Offset>
00145 struct palign_impl<Offset,Packet2cf>
00146 {
00147 static EIGEN_STRONG_INLINE void run(Packet2cf& first, const Packet2cf& second)
00148 {
00149 if (Offset==1)
00150 {
00151 first.v = _mm_movehl_ps(first.v, first.v);
00152 first.v = _mm_movelh_ps(first.v, second.v);
00153 }
00154 }
00155 };
00156
00157 template<> struct conj_helper<Packet2cf, Packet2cf, false,true>
00158 {
00159 EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet2cf& y, const Packet2cf& c) const
00160 { return padd(pmul(x,y),c); }
00161
00162 EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& a, const Packet2cf& b) const
00163 {
00164 #ifdef EIGEN_VECTORIZE_SSE3
00165 return internal::pmul(a, pconj(b));
00166 #else
00167 const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x00000000,0x80000000,0x00000000,0x80000000));
00168 return Packet2cf(_mm_add_ps(_mm_xor_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 0, 0, 2, 2), b.v), mask),
00169 _mm_mul_ps(vec4f_swizzle1(a.v, 1, 1, 3, 3),
00170 vec4f_swizzle1(b.v, 1, 0, 3, 2))));
00171 #endif
00172 }
00173 };
00174
00175 template<> struct conj_helper<Packet2cf, Packet2cf, true,false>
00176 {
00177 EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet2cf& y, const Packet2cf& c) const
00178 { return padd(pmul(x,y),c); }
00179
00180 EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& a, const Packet2cf& b) const
00181 {
00182 #ifdef EIGEN_VECTORIZE_SSE3
00183 return internal::pmul(pconj(a), b);
00184 #else
00185 const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x00000000,0x80000000,0x00000000,0x80000000));
00186 return Packet2cf(_mm_add_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 0, 0, 2, 2), b.v),
00187 _mm_xor_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 1, 1, 3, 3),
00188 vec4f_swizzle1(b.v, 1, 0, 3, 2)), mask)));
00189 #endif
00190 }
00191 };
00192
00193 template<> struct conj_helper<Packet2cf, Packet2cf, true,true>
00194 {
00195 EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet2cf& y, const Packet2cf& c) const
00196 { return padd(pmul(x,y),c); }
00197
00198 EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& a, const Packet2cf& b) const
00199 {
00200 #ifdef EIGEN_VECTORIZE_SSE3
00201 return pconj(internal::pmul(a, b));
00202 #else
00203 const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x00000000,0x80000000,0x00000000,0x80000000));
00204 return Packet2cf(_mm_sub_ps(_mm_xor_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 0, 0, 2, 2), b.v), mask),
00205 _mm_mul_ps(vec4f_swizzle1(a.v, 1, 1, 3, 3),
00206 vec4f_swizzle1(b.v, 1, 0, 3, 2))));
00207 #endif
00208 }
00209 };
00210
00211 template<> struct conj_helper<Packet4f, Packet2cf, false,false>
00212 {
00213 EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet4f& x, const Packet2cf& y, const Packet2cf& c) const
00214 { return padd(c, pmul(x,y)); }
00215
00216 EIGEN_STRONG_INLINE Packet2cf pmul(const Packet4f& x, const Packet2cf& y) const
00217 { return Packet2cf(Eigen::internal::pmul(x, y.v)); }
00218 };
00219
00220 template<> struct conj_helper<Packet2cf, Packet4f, false,false>
00221 {
00222 EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet4f& y, const Packet2cf& c) const
00223 { return padd(c, pmul(x,y)); }
00224
00225 EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& x, const Packet4f& y) const
00226 { return Packet2cf(Eigen::internal::pmul(x.v, y)); }
00227 };
00228
00229 template<> EIGEN_STRONG_INLINE Packet2cf pdiv<Packet2cf>(const Packet2cf& a, const Packet2cf& b)
00230 {
00231
00232 Packet2cf res = conj_helper<Packet2cf,Packet2cf,false,true>().pmul(a,b);
00233 __m128 s = _mm_mul_ps(b.v,b.v);
00234 return Packet2cf(_mm_div_ps(res.v,_mm_add_ps(s,_mm_castsi128_ps(_mm_shuffle_epi32(_mm_castps_si128(s), 0xb1)))));
00235 }
00236
00237 EIGEN_STRONG_INLINE Packet2cf pcplxflip(const Packet2cf& x)
00238 {
00239 return Packet2cf(vec4f_swizzle1(x.v, 1, 0, 3, 2));
00240 }
00241
00242
00243
00244 struct Packet1cd
00245 {
00246 EIGEN_STRONG_INLINE Packet1cd() {}
00247 EIGEN_STRONG_INLINE explicit Packet1cd(const __m128d& a) : v(a) {}
00248 __m128d v;
00249 };
00250
00251 template<> struct packet_traits<std::complex<double> > : default_packet_traits
00252 {
00253 typedef Packet1cd type;
00254 enum {
00255 Vectorizable = 1,
00256 AlignedOnScalar = 0,
00257 size = 1,
00258
00259 HasAdd = 1,
00260 HasSub = 1,
00261 HasMul = 1,
00262 HasDiv = 1,
00263 HasNegate = 1,
00264 HasAbs = 0,
00265 HasAbs2 = 0,
00266 HasMin = 0,
00267 HasMax = 0,
00268 HasSetLinear = 0
00269 };
00270 };
00271
00272 template<> struct unpacket_traits<Packet1cd> { typedef std::complex<double> type; enum {size=1}; };
00273
00274 template<> EIGEN_STRONG_INLINE Packet1cd padd<Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_add_pd(a.v,b.v)); }
00275 template<> EIGEN_STRONG_INLINE Packet1cd psub<Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_sub_pd(a.v,b.v)); }
00276 template<> EIGEN_STRONG_INLINE Packet1cd pnegate(const Packet1cd& a) { return Packet1cd(pnegate(a.v)); }
00277 template<> EIGEN_STRONG_INLINE Packet1cd pconj(const Packet1cd& a)
00278 {
00279 const __m128d mask = _mm_castsi128_pd(_mm_set_epi32(0x80000000,0x0,0x0,0x0));
00280 return Packet1cd(_mm_xor_pd(a.v,mask));
00281 }
00282
00283 template<> EIGEN_STRONG_INLINE Packet1cd pmul<Packet1cd>(const Packet1cd& a, const Packet1cd& b)
00284 {
00285
00286 #ifdef EIGEN_VECTORIZE_SSE3
00287 return Packet1cd(_mm_addsub_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 0, 0), b.v),
00288 _mm_mul_pd(vec2d_swizzle1(a.v, 1, 1),
00289 vec2d_swizzle1(b.v, 1, 0))));
00290 #else
00291 const __m128d mask = _mm_castsi128_pd(_mm_set_epi32(0x0,0x0,0x80000000,0x0));
00292 return Packet1cd(_mm_add_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 0, 0), b.v),
00293 _mm_xor_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 1, 1),
00294 vec2d_swizzle1(b.v, 1, 0)), mask)));
00295 #endif
00296 }
00297
00298 template<> EIGEN_STRONG_INLINE Packet1cd pand <Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_and_pd(a.v,b.v)); }
00299 template<> EIGEN_STRONG_INLINE Packet1cd por <Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_or_pd(a.v,b.v)); }
00300 template<> EIGEN_STRONG_INLINE Packet1cd pxor <Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_xor_pd(a.v,b.v)); }
00301 template<> EIGEN_STRONG_INLINE Packet1cd pandnot<Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_andnot_pd(a.v,b.v)); }
00302
00303
00304 template<> EIGEN_STRONG_INLINE Packet1cd pload <Packet1cd>(const std::complex<double>* from)
00305 { EIGEN_DEBUG_ALIGNED_LOAD return Packet1cd(pload<Packet2d>((const double*)from)); }
00306 template<> EIGEN_STRONG_INLINE Packet1cd ploadu<Packet1cd>(const std::complex<double>* from)
00307 { EIGEN_DEBUG_UNALIGNED_LOAD return Packet1cd(ploadu<Packet2d>((const double*)from)); }
00308 template<> EIGEN_STRONG_INLINE Packet1cd pset1<Packet1cd>(const std::complex<double>& from)
00309 { return ploadu<Packet1cd>(&from); }
00310
00311 template<> EIGEN_STRONG_INLINE Packet1cd ploaddup<Packet1cd>(const std::complex<double>* from) { return pset1<Packet1cd>(*from); }
00312
00313
00314 template<> EIGEN_STRONG_INLINE void pstore <std::complex<double> >(std::complex<double> * to, const Packet1cd& from) { EIGEN_DEBUG_ALIGNED_STORE pstore((double*)to, from.v); }
00315 template<> EIGEN_STRONG_INLINE void pstoreu<std::complex<double> >(std::complex<double> * to, const Packet1cd& from) { EIGEN_DEBUG_UNALIGNED_STORE pstoreu((double*)to, from.v); }
00316
00317 template<> EIGEN_STRONG_INLINE void prefetch<std::complex<double> >(const std::complex<double> * addr) { _mm_prefetch((const char*)(addr), _MM_HINT_T0); }
00318
00319 template<> EIGEN_STRONG_INLINE std::complex<double> pfirst<Packet1cd>(const Packet1cd& a)
00320 {
00321 EIGEN_ALIGN16 double res[2];
00322 _mm_store_pd(res, a.v);
00323 return std::complex<double>(res[0],res[1]);
00324 }
00325
00326 template<> EIGEN_STRONG_INLINE Packet1cd preverse(const Packet1cd& a) { return a; }
00327
00328 template<> EIGEN_STRONG_INLINE std::complex<double> predux<Packet1cd>(const Packet1cd& a)
00329 {
00330 return pfirst(a);
00331 }
00332
00333 template<> EIGEN_STRONG_INLINE Packet1cd preduxp<Packet1cd>(const Packet1cd* vecs)
00334 {
00335 return vecs[0];
00336 }
00337
00338 template<> EIGEN_STRONG_INLINE std::complex<double> predux_mul<Packet1cd>(const Packet1cd& a)
00339 {
00340 return pfirst(a);
00341 }
00342
00343 template<int Offset>
00344 struct palign_impl<Offset,Packet1cd>
00345 {
00346 static EIGEN_STRONG_INLINE void run(Packet1cd& , const Packet1cd& )
00347 {
00348
00349
00350 }
00351 };
00352
00353 template<> struct conj_helper<Packet1cd, Packet1cd, false,true>
00354 {
00355 EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet1cd& y, const Packet1cd& c) const
00356 { return padd(pmul(x,y),c); }
00357
00358 EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& a, const Packet1cd& b) const
00359 {
00360 #ifdef EIGEN_VECTORIZE_SSE3
00361 return internal::pmul(a, pconj(b));
00362 #else
00363 const __m128d mask = _mm_castsi128_pd(_mm_set_epi32(0x80000000,0x0,0x0,0x0));
00364 return Packet1cd(_mm_add_pd(_mm_xor_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 0, 0), b.v), mask),
00365 _mm_mul_pd(vec2d_swizzle1(a.v, 1, 1),
00366 vec2d_swizzle1(b.v, 1, 0))));
00367 #endif
00368 }
00369 };
00370
00371 template<> struct conj_helper<Packet1cd, Packet1cd, true,false>
00372 {
00373 EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet1cd& y, const Packet1cd& c) const
00374 { return padd(pmul(x,y),c); }
00375
00376 EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& a, const Packet1cd& b) const
00377 {
00378 #ifdef EIGEN_VECTORIZE_SSE3
00379 return internal::pmul(pconj(a), b);
00380 #else
00381 const __m128d mask = _mm_castsi128_pd(_mm_set_epi32(0x80000000,0x0,0x0,0x0));
00382 return Packet1cd(_mm_add_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 0, 0), b.v),
00383 _mm_xor_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 1, 1),
00384 vec2d_swizzle1(b.v, 1, 0)), mask)));
00385 #endif
00386 }
00387 };
00388
00389 template<> struct conj_helper<Packet1cd, Packet1cd, true,true>
00390 {
00391 EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet1cd& y, const Packet1cd& c) const
00392 { return padd(pmul(x,y),c); }
00393
00394 EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& a, const Packet1cd& b) const
00395 {
00396 #ifdef EIGEN_VECTORIZE_SSE3
00397 return pconj(internal::pmul(a, b));
00398 #else
00399 const __m128d mask = _mm_castsi128_pd(_mm_set_epi32(0x80000000,0x0,0x0,0x0));
00400 return Packet1cd(_mm_sub_pd(_mm_xor_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 0, 0), b.v), mask),
00401 _mm_mul_pd(vec2d_swizzle1(a.v, 1, 1),
00402 vec2d_swizzle1(b.v, 1, 0))));
00403 #endif
00404 }
00405 };
00406
00407 template<> struct conj_helper<Packet2d, Packet1cd, false,false>
00408 {
00409 EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet2d& x, const Packet1cd& y, const Packet1cd& c) const
00410 { return padd(c, pmul(x,y)); }
00411
00412 EIGEN_STRONG_INLINE Packet1cd pmul(const Packet2d& x, const Packet1cd& y) const
00413 { return Packet1cd(Eigen::internal::pmul(x, y.v)); }
00414 };
00415
00416 template<> struct conj_helper<Packet1cd, Packet2d, false,false>
00417 {
00418 EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet2d& y, const Packet1cd& c) const
00419 { return padd(c, pmul(x,y)); }
00420
00421 EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& x, const Packet2d& y) const
00422 { return Packet1cd(Eigen::internal::pmul(x.v, y)); }
00423 };
00424
00425 template<> EIGEN_STRONG_INLINE Packet1cd pdiv<Packet1cd>(const Packet1cd& a, const Packet1cd& b)
00426 {
00427
00428 Packet1cd res = conj_helper<Packet1cd,Packet1cd,false,true>().pmul(a,b);
00429 __m128d s = _mm_mul_pd(b.v,b.v);
00430 return Packet1cd(_mm_div_pd(res.v, _mm_add_pd(s,_mm_shuffle_pd(s, s, 0x1))));
00431 }
00432
00433 EIGEN_STRONG_INLINE Packet1cd pcplxflip(const Packet1cd& x)
00434 {
00435 return Packet1cd(preverse(x.v));
00436 }
00437
00438 }
00439
00440 }
00441
00442 #endif // EIGEN_COMPLEX_SSE_H