SSE/Complex.h
1// This file is part of Eigen, a lightweight C++ template library
2// for linear algebra.
3//
4// Copyright (C) 2010 Gael Guennebaud <gael.guennebaud@inria.fr>
5//
6// This Source Code Form is subject to the terms of the Mozilla
7// Public License v. 2.0. If a copy of the MPL was not distributed
8// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
9
10#ifndef EIGEN_COMPLEX_SSE_H
11#define EIGEN_COMPLEX_SSE_H
12
13namespace Eigen {
14
15namespace internal {
16
17//---------- float ----------
18struct Packet2cf
19{
20 EIGEN_STRONG_INLINE Packet2cf() {}
21 EIGEN_STRONG_INLINE explicit Packet2cf(const __m128& a) : v(a) {}
22 __m128 v;
23};
24
25template<> struct packet_traits<std::complex<float> > : default_packet_traits
26{
27 typedef Packet2cf type;
28 enum {
29 Vectorizable = 1,
30 AlignedOnScalar = 1,
31 size = 2,
32
33 HasAdd = 1,
34 HasSub = 1,
35 HasMul = 1,
36 HasDiv = 1,
37 HasNegate = 1,
38 HasAbs = 0,
39 HasAbs2 = 0,
40 HasMin = 0,
41 HasMax = 0,
42 HasSetLinear = 0
43 };
44};
45
46template<> struct unpacket_traits<Packet2cf> { typedef std::complex<float> type; enum {size=2}; };
47
48template<> EIGEN_STRONG_INLINE Packet2cf padd<Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_add_ps(a.v,b.v)); }
49template<> EIGEN_STRONG_INLINE Packet2cf psub<Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_sub_ps(a.v,b.v)); }
50template<> EIGEN_STRONG_INLINE Packet2cf pnegate(const Packet2cf& a)
51{
52 const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x80000000,0x80000000,0x80000000,0x80000000));
53 return Packet2cf(_mm_xor_ps(a.v,mask));
54}
55template<> EIGEN_STRONG_INLINE Packet2cf pconj(const Packet2cf& a)
56{
57 const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x00000000,0x80000000,0x00000000,0x80000000));
58 return Packet2cf(_mm_xor_ps(a.v,mask));
59}
60
61template<> EIGEN_STRONG_INLINE Packet2cf pmul<Packet2cf>(const Packet2cf& a, const Packet2cf& b)
62{
63 // TODO optimize it for SSE3 and 4
64 #ifdef EIGEN_VECTORIZE_SSE3
65 return Packet2cf(_mm_addsub_ps(_mm_mul_ps(_mm_moveldup_ps(a.v), b.v),
66 _mm_mul_ps(_mm_movehdup_ps(a.v),
67 vec4f_swizzle1(b.v, 1, 0, 3, 2))));
68// return Packet2cf(_mm_addsub_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 0, 0, 2, 2), b.v),
69// _mm_mul_ps(vec4f_swizzle1(a.v, 1, 1, 3, 3),
70// vec4f_swizzle1(b.v, 1, 0, 3, 2))));
71 #else
72 const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x80000000,0x00000000,0x80000000,0x00000000));
73 return Packet2cf(_mm_add_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 0, 0, 2, 2), b.v),
74 _mm_xor_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 1, 1, 3, 3),
75 vec4f_swizzle1(b.v, 1, 0, 3, 2)), mask)));
76 #endif
77}
78
79template<> EIGEN_STRONG_INLINE Packet2cf pand <Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_and_ps(a.v,b.v)); }
80template<> EIGEN_STRONG_INLINE Packet2cf por <Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_or_ps(a.v,b.v)); }
81template<> EIGEN_STRONG_INLINE Packet2cf pxor <Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_xor_ps(a.v,b.v)); }
82template<> EIGEN_STRONG_INLINE Packet2cf pandnot<Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_andnot_ps(a.v,b.v)); }
83
84template<> EIGEN_STRONG_INLINE Packet2cf pload <Packet2cf>(const std::complex<float>* from) { EIGEN_DEBUG_ALIGNED_LOAD return Packet2cf(pload<Packet4f>(&real_ref(*from))); }
85template<> EIGEN_STRONG_INLINE Packet2cf ploadu<Packet2cf>(const std::complex<float>* from) { EIGEN_DEBUG_UNALIGNED_LOAD return Packet2cf(ploadu<Packet4f>(&real_ref(*from))); }
86
87template<> EIGEN_STRONG_INLINE Packet2cf pset1<Packet2cf>(const std::complex<float>& from)
88{
89 Packet2cf res;
90 #if EIGEN_GNUC_AT_MOST(4,2)
91 // workaround annoying "may be used uninitialized in this function" warning with gcc 4.2
92 res.v = _mm_loadl_pi(_mm_set1_ps(0.0f), reinterpret_cast<const __m64*>(&from));
93 #else
94 res.v = _mm_loadl_pi(res.v, (const __m64*)&from);
95 #endif
96 return Packet2cf(_mm_movelh_ps(res.v,res.v));
97}
98
99template<> EIGEN_STRONG_INLINE Packet2cf ploaddup<Packet2cf>(const std::complex<float>* from) { return pset1<Packet2cf>(*from); }
100
101template<> EIGEN_STRONG_INLINE void pstore <std::complex<float> >(std::complex<float> * to, const Packet2cf& from) { EIGEN_DEBUG_ALIGNED_STORE pstore(&real_ref(*to), from.v); }
102template<> EIGEN_STRONG_INLINE void pstoreu<std::complex<float> >(std::complex<float> * to, const Packet2cf& from) { EIGEN_DEBUG_UNALIGNED_STORE pstoreu(&real_ref(*to), from.v); }
103
104template<> EIGEN_STRONG_INLINE void prefetch<std::complex<float> >(const std::complex<float> * addr) { _mm_prefetch((const char*)(addr), _MM_HINT_T0); }
105
106template<> EIGEN_STRONG_INLINE std::complex<float> pfirst<Packet2cf>(const Packet2cf& a)
107{
108 #if EIGEN_GNUC_AT_MOST(4,3)
109 // Workaround gcc 4.2 ICE - this is not performance wise ideal, but who cares...
110 // This workaround also fix invalid code generation with gcc 4.3
111 EIGEN_ALIGN16 std::complex<float> res[2];
112 _mm_store_ps((float*)res, a.v);
113 return res[0];
114 #else
115 std::complex<float> res;
116 _mm_storel_pi((__m64*)&res, a.v);
117 return res;
118 #endif
119}
120
121template<> EIGEN_STRONG_INLINE Packet2cf preverse(const Packet2cf& a) { return Packet2cf(_mm_castpd_ps(preverse(_mm_castps_pd(a.v)))); }
122
123template<> EIGEN_STRONG_INLINE std::complex<float> predux<Packet2cf>(const Packet2cf& a)
124{
125 return pfirst(Packet2cf(_mm_add_ps(a.v, _mm_movehl_ps(a.v,a.v))));
126}
127
128template<> EIGEN_STRONG_INLINE Packet2cf preduxp<Packet2cf>(const Packet2cf* vecs)
129{
130 return Packet2cf(_mm_add_ps(_mm_movelh_ps(vecs[0].v,vecs[1].v), _mm_movehl_ps(vecs[1].v,vecs[0].v)));
131}
132
133template<> EIGEN_STRONG_INLINE std::complex<float> predux_mul<Packet2cf>(const Packet2cf& a)
134{
135 return pfirst(pmul(a, Packet2cf(_mm_movehl_ps(a.v,a.v))));
136}
137
138template<int Offset>
139struct palign_impl<Offset,Packet2cf>
140{
141 static EIGEN_STRONG_INLINE void run(Packet2cf& first, const Packet2cf& second)
142 {
143 if (Offset==1)
144 {
145 first.v = _mm_movehl_ps(first.v, first.v);
146 first.v = _mm_movelh_ps(first.v, second.v);
147 }
148 }
149};
150
151template<> struct conj_helper<Packet2cf, Packet2cf, false,true>
152{
153 EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet2cf& y, const Packet2cf& c) const
154 { return padd(pmul(x,y),c); }
155
156 EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& a, const Packet2cf& b) const
157 {
158 #ifdef EIGEN_VECTORIZE_SSE3
159 return internal::pmul(a, pconj(b));
160 #else
161 const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x00000000,0x80000000,0x00000000,0x80000000));
162 return Packet2cf(_mm_add_ps(_mm_xor_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 0, 0, 2, 2), b.v), mask),
163 _mm_mul_ps(vec4f_swizzle1(a.v, 1, 1, 3, 3),
164 vec4f_swizzle1(b.v, 1, 0, 3, 2))));
165 #endif
166 }
167};
168
169template<> struct conj_helper<Packet2cf, Packet2cf, true,false>
170{
171 EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet2cf& y, const Packet2cf& c) const
172 { return padd(pmul(x,y),c); }
173
174 EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& a, const Packet2cf& b) const
175 {
176 #ifdef EIGEN_VECTORIZE_SSE3
177 return internal::pmul(pconj(a), b);
178 #else
179 const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x00000000,0x80000000,0x00000000,0x80000000));
180 return Packet2cf(_mm_add_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 0, 0, 2, 2), b.v),
181 _mm_xor_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 1, 1, 3, 3),
182 vec4f_swizzle1(b.v, 1, 0, 3, 2)), mask)));
183 #endif
184 }
185};
186
187template<> struct conj_helper<Packet2cf, Packet2cf, true,true>
188{
189 EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet2cf& y, const Packet2cf& c) const
190 { return padd(pmul(x,y),c); }
191
192 EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& a, const Packet2cf& b) const
193 {
194 #ifdef EIGEN_VECTORIZE_SSE3
195 return pconj(internal::pmul(a, b));
196 #else
197 const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x00000000,0x80000000,0x00000000,0x80000000));
198 return Packet2cf(_mm_sub_ps(_mm_xor_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 0, 0, 2, 2), b.v), mask),
199 _mm_mul_ps(vec4f_swizzle1(a.v, 1, 1, 3, 3),
200 vec4f_swizzle1(b.v, 1, 0, 3, 2))));
201 #endif
202 }
203};
204
205template<> struct conj_helper<Packet4f, Packet2cf, false,false>
206{
207 EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet4f& x, const Packet2cf& y, const Packet2cf& c) const
208 { return padd(c, pmul(x,y)); }
209
210 EIGEN_STRONG_INLINE Packet2cf pmul(const Packet4f& x, const Packet2cf& y) const
211 { return Packet2cf(Eigen::internal::pmul(x, y.v)); }
212};
213
214template<> struct conj_helper<Packet2cf, Packet4f, false,false>
215{
216 EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet4f& y, const Packet2cf& c) const
217 { return padd(c, pmul(x,y)); }
218
219 EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& x, const Packet4f& y) const
220 { return Packet2cf(Eigen::internal::pmul(x.v, y)); }
221};
222
223template<> EIGEN_STRONG_INLINE Packet2cf pdiv<Packet2cf>(const Packet2cf& a, const Packet2cf& b)
224{
225 // TODO optimize it for SSE3 and 4
226 Packet2cf res = conj_helper<Packet2cf,Packet2cf,false,true>().pmul(a,b);
227 __m128 s = _mm_mul_ps(b.v,b.v);
228 return Packet2cf(_mm_div_ps(res.v,_mm_add_ps(s,_mm_castsi128_ps(_mm_shuffle_epi32(_mm_castps_si128(s), 0xb1)))));
229}
230
231EIGEN_STRONG_INLINE Packet2cf pcplxflip/*<Packet2cf>*/(const Packet2cf& x)
232{
233 return Packet2cf(vec4f_swizzle1(x.v, 1, 0, 3, 2));
234}
235
236
237//---------- double ----------
238struct Packet1cd
239{
240 EIGEN_STRONG_INLINE Packet1cd() {}
241 EIGEN_STRONG_INLINE explicit Packet1cd(const __m128d& a) : v(a) {}
242 __m128d v;
243};
244
245template<> struct packet_traits<std::complex<double> > : default_packet_traits
246{
247 typedef Packet1cd type;
248 enum {
249 Vectorizable = 1,
250 AlignedOnScalar = 0,
251 size = 1,
252
253 HasAdd = 1,
254 HasSub = 1,
255 HasMul = 1,
256 HasDiv = 1,
257 HasNegate = 1,
258 HasAbs = 0,
259 HasAbs2 = 0,
260 HasMin = 0,
261 HasMax = 0,
262 HasSetLinear = 0
263 };
264};
265
266template<> struct unpacket_traits<Packet1cd> { typedef std::complex<double> type; enum {size=1}; };
267
268template<> EIGEN_STRONG_INLINE Packet1cd padd<Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_add_pd(a.v,b.v)); }
269template<> EIGEN_STRONG_INLINE Packet1cd psub<Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_sub_pd(a.v,b.v)); }
270template<> EIGEN_STRONG_INLINE Packet1cd pnegate(const Packet1cd& a) { return Packet1cd(pnegate(a.v)); }
271template<> EIGEN_STRONG_INLINE Packet1cd pconj(const Packet1cd& a)
272{
273 const __m128d mask = _mm_castsi128_pd(_mm_set_epi32(0x80000000,0x0,0x0,0x0));
274 return Packet1cd(_mm_xor_pd(a.v,mask));
275}
276
277template<> EIGEN_STRONG_INLINE Packet1cd pmul<Packet1cd>(const Packet1cd& a, const Packet1cd& b)
278{
279 // TODO optimize it for SSE3 and 4
280 #ifdef EIGEN_VECTORIZE_SSE3
281 return Packet1cd(_mm_addsub_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 0, 0), b.v),
282 _mm_mul_pd(vec2d_swizzle1(a.v, 1, 1),
283 vec2d_swizzle1(b.v, 1, 0))));
284 #else
285 const __m128d mask = _mm_castsi128_pd(_mm_set_epi32(0x0,0x0,0x80000000,0x0));
286 return Packet1cd(_mm_add_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 0, 0), b.v),
287 _mm_xor_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 1, 1),
288 vec2d_swizzle1(b.v, 1, 0)), mask)));
289 #endif
290}
291
292template<> EIGEN_STRONG_INLINE Packet1cd pand <Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_and_pd(a.v,b.v)); }
293template<> EIGEN_STRONG_INLINE Packet1cd por <Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_or_pd(a.v,b.v)); }
294template<> EIGEN_STRONG_INLINE Packet1cd pxor <Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_xor_pd(a.v,b.v)); }
295template<> EIGEN_STRONG_INLINE Packet1cd pandnot<Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_andnot_pd(a.v,b.v)); }
296
297// FIXME force unaligned load, this is a temporary fix
298template<> EIGEN_STRONG_INLINE Packet1cd pload <Packet1cd>(const std::complex<double>* from)
299{ EIGEN_DEBUG_ALIGNED_LOAD return Packet1cd(pload<Packet2d>((const double*)from)); }
300template<> EIGEN_STRONG_INLINE Packet1cd ploadu<Packet1cd>(const std::complex<double>* from)
301{ EIGEN_DEBUG_UNALIGNED_LOAD return Packet1cd(ploadu<Packet2d>((const double*)from)); }
302template<> EIGEN_STRONG_INLINE Packet1cd pset1<Packet1cd>(const std::complex<double>& from)
303{ /* here we really have to use unaligned loads :( */ return ploadu<Packet1cd>(&from); }
304
305template<> EIGEN_STRONG_INLINE Packet1cd ploaddup<Packet1cd>(const std::complex<double>* from) { return pset1<Packet1cd>(*from); }
306
307// FIXME force unaligned store, this is a temporary fix
308template<> EIGEN_STRONG_INLINE void pstore <std::complex<double> >(std::complex<double> * to, const Packet1cd& from) { EIGEN_DEBUG_ALIGNED_STORE pstore((double*)to, from.v); }
309template<> EIGEN_STRONG_INLINE void pstoreu<std::complex<double> >(std::complex<double> * to, const Packet1cd& from) { EIGEN_DEBUG_UNALIGNED_STORE pstoreu((double*)to, from.v); }
310
311template<> EIGEN_STRONG_INLINE void prefetch<std::complex<double> >(const std::complex<double> * addr) { _mm_prefetch((const char*)(addr), _MM_HINT_T0); }
312
313template<> EIGEN_STRONG_INLINE std::complex<double> pfirst<Packet1cd>(const Packet1cd& a)
314{
315 EIGEN_ALIGN16 double res[2];
316 _mm_store_pd(res, a.v);
317 return std::complex<double>(res[0],res[1]);
318}
319
320template<> EIGEN_STRONG_INLINE Packet1cd preverse(const Packet1cd& a) { return a; }
321
322template<> EIGEN_STRONG_INLINE std::complex<double> predux<Packet1cd>(const Packet1cd& a)
323{
324 return pfirst(a);
325}
326
327template<> EIGEN_STRONG_INLINE Packet1cd preduxp<Packet1cd>(const Packet1cd* vecs)
328{
329 return vecs[0];
330}
331
332template<> EIGEN_STRONG_INLINE std::complex<double> predux_mul<Packet1cd>(const Packet1cd& a)
333{
334 return pfirst(a);
335}
336
337template<int Offset>
338struct palign_impl<Offset,Packet1cd>
339{
340 static EIGEN_STRONG_INLINE void run(Packet1cd& /*first*/, const Packet1cd& /*second*/)
341 {
342 // FIXME is it sure we never have to align a Packet1cd?
343 // Even though a std::complex<double> has 16 bytes, it is not necessarily aligned on a 16 bytes boundary...
344 }
345};
346
347template<> struct conj_helper<Packet1cd, Packet1cd, false,true>
348{
349 EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet1cd& y, const Packet1cd& c) const
350 { return padd(pmul(x,y),c); }
351
352 EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& a, const Packet1cd& b) const
353 {
354 #ifdef EIGEN_VECTORIZE_SSE3
355 return internal::pmul(a, pconj(b));
356 #else
357 const __m128d mask = _mm_castsi128_pd(_mm_set_epi32(0x80000000,0x0,0x0,0x0));
358 return Packet1cd(_mm_add_pd(_mm_xor_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 0, 0), b.v), mask),
359 _mm_mul_pd(vec2d_swizzle1(a.v, 1, 1),
360 vec2d_swizzle1(b.v, 1, 0))));
361 #endif
362 }
363};
364
365template<> struct conj_helper<Packet1cd, Packet1cd, true,false>
366{
367 EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet1cd& y, const Packet1cd& c) const
368 { return padd(pmul(x,y),c); }
369
370 EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& a, const Packet1cd& b) const
371 {
372 #ifdef EIGEN_VECTORIZE_SSE3
373 return internal::pmul(pconj(a), b);
374 #else
375 const __m128d mask = _mm_castsi128_pd(_mm_set_epi32(0x80000000,0x0,0x0,0x0));
376 return Packet1cd(_mm_add_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 0, 0), b.v),
377 _mm_xor_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 1, 1),
378 vec2d_swizzle1(b.v, 1, 0)), mask)));
379 #endif
380 }
381};
382
383template<> struct conj_helper<Packet1cd, Packet1cd, true,true>
384{
385 EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet1cd& y, const Packet1cd& c) const
386 { return padd(pmul(x,y),c); }
387
388 EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& a, const Packet1cd& b) const
389 {
390 #ifdef EIGEN_VECTORIZE_SSE3
391 return pconj(internal::pmul(a, b));
392 #else
393 const __m128d mask = _mm_castsi128_pd(_mm_set_epi32(0x80000000,0x0,0x0,0x0));
394 return Packet1cd(_mm_sub_pd(_mm_xor_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 0, 0), b.v), mask),
395 _mm_mul_pd(vec2d_swizzle1(a.v, 1, 1),
396 vec2d_swizzle1(b.v, 1, 0))));
397 #endif
398 }
399};
400
401template<> struct conj_helper<Packet2d, Packet1cd, false,false>
402{
403 EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet2d& x, const Packet1cd& y, const Packet1cd& c) const
404 { return padd(c, pmul(x,y)); }
405
406 EIGEN_STRONG_INLINE Packet1cd pmul(const Packet2d& x, const Packet1cd& y) const
407 { return Packet1cd(Eigen::internal::pmul(x, y.v)); }
408};
409
410template<> struct conj_helper<Packet1cd, Packet2d, false,false>
411{
412 EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet2d& y, const Packet1cd& c) const
413 { return padd(c, pmul(x,y)); }
414
415 EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& x, const Packet2d& y) const
416 { return Packet1cd(Eigen::internal::pmul(x.v, y)); }
417};
418
419template<> EIGEN_STRONG_INLINE Packet1cd pdiv<Packet1cd>(const Packet1cd& a, const Packet1cd& b)
420{
421 // TODO optimize it for SSE3 and 4
422 Packet1cd res = conj_helper<Packet1cd,Packet1cd,false,true>().pmul(a,b);
423 __m128d s = _mm_mul_pd(b.v,b.v);
424 return Packet1cd(_mm_div_pd(res.v, _mm_add_pd(s,_mm_shuffle_pd(s, s, 0x1))));
425}
426
427EIGEN_STRONG_INLINE Packet1cd pcplxflip/*<Packet1cd>*/(const Packet1cd& x)
428{
429 return Packet1cd(preverse(x.v));
430}
431
432} // end namespace internal
433
434} // end namespace Eigen
435
436#endif // EIGEN_COMPLEX_SSE_H
Eigen::internal
Definition LDLT.h:18