compbio
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 // Copyright (C) 2010-2016 Konstantinos Margaritis <markos@freevec.org>
6 //
7 // This Source Code Form is subject to the terms of the Mozilla
8 // Public License v. 2.0. If a copy of the MPL was not distributed
9 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
10 
11 #ifndef EIGEN_COMPLEX32_ALTIVEC_H
12 #define EIGEN_COMPLEX32_ALTIVEC_H
13 
14 namespace Eigen {
15 
16 namespace internal {
17 
18 static Packet4ui p4ui_CONJ_XOR = vec_mergeh((Packet4ui)p4i_ZERO, (Packet4ui)p4f_ZERO_);//{ 0x00000000, 0x80000000, 0x00000000, 0x80000000 };
19 #ifdef __VSX__
20 #if defined(_BIG_ENDIAN)
21 static Packet2ul p2ul_CONJ_XOR1 = (Packet2ul) vec_sld((Packet4ui) p2d_ZERO_, (Packet4ui) p2l_ZERO, 8);//{ 0x8000000000000000, 0x0000000000000000 };
22 static Packet2ul p2ul_CONJ_XOR2 = (Packet2ul) vec_sld((Packet4ui) p2l_ZERO, (Packet4ui) p2d_ZERO_, 8);//{ 0x8000000000000000, 0x0000000000000000 };
23 #else
24 static Packet2ul p2ul_CONJ_XOR1 = (Packet2ul) vec_sld((Packet4ui) p2l_ZERO, (Packet4ui) p2d_ZERO_, 8);//{ 0x8000000000000000, 0x0000000000000000 };
25 static Packet2ul p2ul_CONJ_XOR2 = (Packet2ul) vec_sld((Packet4ui) p2d_ZERO_, (Packet4ui) p2l_ZERO, 8);//{ 0x8000000000000000, 0x0000000000000000 };
26 #endif
27 #endif
28 
29 //---------- float ----------
30 struct Packet2cf
31 {
32  EIGEN_STRONG_INLINE explicit Packet2cf() : v(p4f_ZERO) {}
33  EIGEN_STRONG_INLINE explicit Packet2cf(const Packet4f& a) : v(a) {}
34  Packet4f v;
35 };
36 
37 template<> struct packet_traits<std::complex<float> > : default_packet_traits
38 {
39  typedef Packet2cf type;
40  typedef Packet2cf half;
41  enum {
42  Vectorizable = 1,
43  AlignedOnScalar = 1,
44  size = 2,
45  HasHalfPacket = 0,
46 
47  HasAdd = 1,
48  HasSub = 1,
49  HasMul = 1,
50  HasDiv = 1,
51  HasNegate = 1,
52  HasAbs = 0,
53  HasAbs2 = 0,
54  HasMin = 0,
55  HasMax = 0,
56 #ifdef __VSX__
57  HasBlend = 1,
58 #endif
59  HasSetLinear = 0
60  };
61 };
62 
63 template<> struct unpacket_traits<Packet2cf> { typedef std::complex<float> type; enum {size=2, alignment=Aligned16}; typedef Packet2cf half; };
64 
65 template<> EIGEN_STRONG_INLINE Packet2cf pset1<Packet2cf>(const std::complex<float>& from)
66 {
67  Packet2cf res;
68  if((ptrdiff_t(&from) % 16) == 0)
69  res.v = pload<Packet4f>((const float *)&from);
70  else
71  res.v = ploadu<Packet4f>((const float *)&from);
72  res.v = vec_perm(res.v, res.v, p16uc_PSET64_HI);
73  return res;
74 }
75 
76 template<> EIGEN_STRONG_INLINE Packet2cf pload<Packet2cf>(const std::complex<float>* from) { return Packet2cf(pload<Packet4f>((const float *) from)); }
77 template<> EIGEN_STRONG_INLINE Packet2cf ploadu<Packet2cf>(const std::complex<float>* from) { return Packet2cf(ploadu<Packet4f>((const float*) from)); }
78 template<> EIGEN_STRONG_INLINE Packet2cf ploaddup<Packet2cf>(const std::complex<float>* from) { return pset1<Packet2cf>(*from); }
79 
80 template<> EIGEN_STRONG_INLINE void pstore <std::complex<float> >(std::complex<float> * to, const Packet2cf& from) { pstore((float*)to, from.v); }
81 template<> EIGEN_STRONG_INLINE void pstoreu<std::complex<float> >(std::complex<float> * to, const Packet2cf& from) { pstoreu((float*)to, from.v); }
82 
83 template<> EIGEN_DEVICE_FUNC inline Packet2cf pgather<std::complex<float>, Packet2cf>(const std::complex<float>* from, Index stride)
84 {
85  std::complex<float> EIGEN_ALIGN16 af[2];
86  af[0] = from[0*stride];
87  af[1] = from[1*stride];
88  return pload<Packet2cf>(af);
89 }
90 template<> EIGEN_DEVICE_FUNC inline void pscatter<std::complex<float>, Packet2cf>(std::complex<float>* to, const Packet2cf& from, Index stride)
91 {
92  std::complex<float> EIGEN_ALIGN16 af[2];
93  pstore<std::complex<float> >((std::complex<float> *) af, from);
94  to[0*stride] = af[0];
95  to[1*stride] = af[1];
96 }
97 
98 template<> EIGEN_STRONG_INLINE Packet2cf padd<Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(a.v + b.v); }
99 template<> EIGEN_STRONG_INLINE Packet2cf psub<Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(a.v - b.v); }
100 template<> EIGEN_STRONG_INLINE Packet2cf pnegate(const Packet2cf& a) { return Packet2cf(pnegate(a.v)); }
101 template<> EIGEN_STRONG_INLINE Packet2cf pconj(const Packet2cf& a) { return Packet2cf(pxor<Packet4f>(a.v, reinterpret_cast<Packet4f>(p4ui_CONJ_XOR))); }
102 
103 template<> EIGEN_STRONG_INLINE Packet2cf pmul<Packet2cf>(const Packet2cf& a, const Packet2cf& b)
104 {
105  Packet4f v1, v2;
106 
107  // Permute and multiply the real parts of a and b
108  v1 = vec_perm(a.v, a.v, p16uc_PSET32_WODD);
109  // Get the imaginary parts of a
110  v2 = vec_perm(a.v, a.v, p16uc_PSET32_WEVEN);
111  // multiply a_re * b
112  v1 = vec_madd(v1, b.v, p4f_ZERO);
113  // multiply a_im * b and get the conjugate result
114  v2 = vec_madd(v2, b.v, p4f_ZERO);
115  v2 = reinterpret_cast<Packet4f>(pxor(v2, reinterpret_cast<Packet4f>(p4ui_CONJ_XOR)));
116  // permute back to a proper order
117  v2 = vec_perm(v2, v2, p16uc_COMPLEX32_REV);
118 
119  return Packet2cf(padd<Packet4f>(v1, v2));
120 }
121 
122 template<> EIGEN_STRONG_INLINE Packet2cf pand <Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(pand<Packet4f>(a.v, b.v)); }
123 template<> EIGEN_STRONG_INLINE Packet2cf por <Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(por<Packet4f>(a.v, b.v)); }
124 template<> EIGEN_STRONG_INLINE Packet2cf pxor <Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(pxor<Packet4f>(a.v, b.v)); }
125 template<> EIGEN_STRONG_INLINE Packet2cf pandnot<Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(pandnot<Packet4f>(a.v, b.v)); }
126 
127 template<> EIGEN_STRONG_INLINE void prefetch<std::complex<float> >(const std::complex<float> * addr) { EIGEN_PPC_PREFETCH(addr); }
128 
129 template<> EIGEN_STRONG_INLINE std::complex<float> pfirst<Packet2cf>(const Packet2cf& a)
130 {
131  std::complex<float> EIGEN_ALIGN16 res[2];
132  pstore((float *)&res, a.v);
133 
134  return res[0];
135 }
136 
137 template<> EIGEN_STRONG_INLINE Packet2cf preverse(const Packet2cf& a)
138 {
139  Packet4f rev_a;
140  rev_a = vec_perm(a.v, a.v, p16uc_COMPLEX32_REV2);
141  return Packet2cf(rev_a);
142 }
143 
144 template<> EIGEN_STRONG_INLINE std::complex<float> predux<Packet2cf>(const Packet2cf& a)
145 {
146  Packet4f b;
147  b = vec_sld(a.v, a.v, 8);
148  b = padd<Packet4f>(a.v, b);
149  return pfirst<Packet2cf>(Packet2cf(b));
150 }
151 
152 template<> EIGEN_STRONG_INLINE Packet2cf preduxp<Packet2cf>(const Packet2cf* vecs)
153 {
154  Packet4f b1, b2;
155 #ifdef _BIG_ENDIAN
156  b1 = vec_sld(vecs[0].v, vecs[1].v, 8);
157  b2 = vec_sld(vecs[1].v, vecs[0].v, 8);
158 #else
159  b1 = vec_sld(vecs[1].v, vecs[0].v, 8);
160  b2 = vec_sld(vecs[0].v, vecs[1].v, 8);
161 #endif
162  b2 = vec_sld(b2, b2, 8);
163  b2 = padd<Packet4f>(b1, b2);
164 
165  return Packet2cf(b2);
166 }
167 
168 template<> EIGEN_STRONG_INLINE std::complex<float> predux_mul<Packet2cf>(const Packet2cf& a)
169 {
170  Packet4f b;
171  Packet2cf prod;
172  b = vec_sld(a.v, a.v, 8);
173  prod = pmul<Packet2cf>(a, Packet2cf(b));
174 
175  return pfirst<Packet2cf>(prod);
176 }
177 
178 template<int Offset>
179 struct palign_impl<Offset,Packet2cf>
180 {
181  static EIGEN_STRONG_INLINE void run(Packet2cf& first, const Packet2cf& second)
182  {
183  if (Offset==1)
184  {
185 #ifdef _BIG_ENDIAN
186  first.v = vec_sld(first.v, second.v, 8);
187 #else
188  first.v = vec_sld(second.v, first.v, 8);
189 #endif
190  }
191  }
192 };
193 
194 template<> struct conj_helper<Packet2cf, Packet2cf, false,true>
195 {
196  EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet2cf& y, const Packet2cf& c) const
197  { return padd(pmul(x,y),c); }
198 
199  EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& a, const Packet2cf& b) const
200  {
201  return internal::pmul(a, pconj(b));
202  }
203 };
204 
205 template<> struct conj_helper<Packet2cf, Packet2cf, true,false>
206 {
207  EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet2cf& y, const Packet2cf& c) const
208  { return padd(pmul(x,y),c); }
209 
210  EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& a, const Packet2cf& b) const
211  {
212  return internal::pmul(pconj(a), b);
213  }
214 };
215 
216 template<> struct conj_helper<Packet2cf, Packet2cf, true,true>
217 {
218  EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet2cf& y, const Packet2cf& c) const
219  { return padd(pmul(x,y),c); }
220 
221  EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& a, const Packet2cf& b) const
222  {
223  return pconj(internal::pmul(a, b));
224  }
225 };
226 
227 template<> struct conj_helper<Packet4f, Packet2cf, false,false>
228 {
229  EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet4f& x, const Packet2cf& y, const Packet2cf& c) const
230  { return padd(c, pmul(x,y)); }
231 
232  EIGEN_STRONG_INLINE Packet2cf pmul(const Packet4f& x, const Packet2cf& y) const
233  { return Packet2cf(internal::pmul<Packet4f>(x, y.v)); }
234 };
235 
236 template<> struct conj_helper<Packet2cf, Packet4f, false,false>
237 {
238  EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet4f& y, const Packet2cf& c) const
239  { return padd(c, pmul(x,y)); }
240 
241  EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& x, const Packet4f& y) const
242  { return Packet2cf(internal::pmul<Packet4f>(x.v, y)); }
243 };
244 
245 template<> EIGEN_STRONG_INLINE Packet2cf pdiv<Packet2cf>(const Packet2cf& a, const Packet2cf& b)
246 {
247  // TODO optimize it for AltiVec
248  Packet2cf res = conj_helper<Packet2cf,Packet2cf,false,true>().pmul(a, b);
249  Packet4f s = pmul<Packet4f>(b.v, b.v);
250  return Packet2cf(pdiv(res.v, padd<Packet4f>(s, vec_perm(s, s, p16uc_COMPLEX32_REV))));
251 }
252 
253 template<> EIGEN_STRONG_INLINE Packet2cf pcplxflip<Packet2cf>(const Packet2cf& x)
254 {
255  return Packet2cf(vec_perm(x.v, x.v, p16uc_COMPLEX32_REV));
256 }
257 
258 EIGEN_STRONG_INLINE void ptranspose(PacketBlock<Packet2cf,2>& kernel)
259 {
260  Packet4f tmp = vec_perm(kernel.packet[0].v, kernel.packet[1].v, p16uc_TRANSPOSE64_HI);
261  kernel.packet[1].v = vec_perm(kernel.packet[0].v, kernel.packet[1].v, p16uc_TRANSPOSE64_LO);
262  kernel.packet[0].v = tmp;
263 }
264 
265 #ifdef __VSX__
266 template<> EIGEN_STRONG_INLINE Packet2cf pblend(const Selector<2>& ifPacket, const Packet2cf& thenPacket, const Packet2cf& elsePacket) {
267  Packet2cf result;
268  result.v = reinterpret_cast<Packet4f>(pblend<Packet2d>(ifPacket, reinterpret_cast<Packet2d>(thenPacket.v), reinterpret_cast<Packet2d>(elsePacket.v)));
269  return result;
270 }
271 #endif
272 
273 //---------- double ----------
274 #ifdef __VSX__
275 struct Packet1cd
276 {
277  EIGEN_STRONG_INLINE Packet1cd() {}
278  EIGEN_STRONG_INLINE explicit Packet1cd(const Packet2d& a) : v(a) {}
279  Packet2d v;
280 };
281 
282 template<> struct packet_traits<std::complex<double> > : default_packet_traits
283 {
284  typedef Packet1cd type;
285  typedef Packet1cd half;
286  enum {
287  Vectorizable = 1,
288  AlignedOnScalar = 0,
289  size = 1,
290  HasHalfPacket = 0,
291 
292  HasAdd = 1,
293  HasSub = 1,
294  HasMul = 1,
295  HasDiv = 1,
296  HasNegate = 1,
297  HasAbs = 0,
298  HasAbs2 = 0,
299  HasMin = 0,
300  HasMax = 0,
301  HasSetLinear = 0
302  };
303 };
304 
305 template<> struct unpacket_traits<Packet1cd> { typedef std::complex<double> type; enum {size=1, alignment=Aligned16}; typedef Packet1cd half; };
306 
307 template<> EIGEN_STRONG_INLINE Packet1cd pload <Packet1cd>(const std::complex<double>* from) { return Packet1cd(pload<Packet2d>((const double*)from)); }
308 template<> EIGEN_STRONG_INLINE Packet1cd ploadu<Packet1cd>(const std::complex<double>* from) { return Packet1cd(ploadu<Packet2d>((const double*)from)); }
309 template<> EIGEN_STRONG_INLINE void pstore <std::complex<double> >(std::complex<double> * to, const Packet1cd& from) { pstore((double*)to, from.v); }
310 template<> EIGEN_STRONG_INLINE void pstoreu<std::complex<double> >(std::complex<double> * to, const Packet1cd& from) { pstoreu((double*)to, from.v); }
311 
312 template<> EIGEN_STRONG_INLINE Packet1cd pset1<Packet1cd>(const std::complex<double>& from)
313 { /* here we really have to use unaligned loads :( */ return ploadu<Packet1cd>(&from); }
314 
315 template<> EIGEN_DEVICE_FUNC inline Packet1cd pgather<std::complex<double>, Packet1cd>(const std::complex<double>* from, Index stride)
316 {
317  std::complex<double> EIGEN_ALIGN16 af[2];
318  af[0] = from[0*stride];
319  af[1] = from[1*stride];
320  return pload<Packet1cd>(af);
321 }
322 template<> EIGEN_DEVICE_FUNC inline void pscatter<std::complex<double>, Packet1cd>(std::complex<double>* to, const Packet1cd& from, Index stride)
323 {
324  std::complex<double> EIGEN_ALIGN16 af[2];
325  pstore<std::complex<double> >(af, from);
326  to[0*stride] = af[0];
327  to[1*stride] = af[1];
328 }
329 
330 template<> EIGEN_STRONG_INLINE Packet1cd padd<Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(a.v + b.v); }
331 template<> EIGEN_STRONG_INLINE Packet1cd psub<Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(a.v - b.v); }
332 template<> EIGEN_STRONG_INLINE Packet1cd pnegate(const Packet1cd& a) { return Packet1cd(pnegate(Packet2d(a.v))); }
333 template<> EIGEN_STRONG_INLINE Packet1cd pconj(const Packet1cd& a) { return Packet1cd(pxor(a.v, reinterpret_cast<Packet2d>(p2ul_CONJ_XOR2))); }
334 
335 template<> EIGEN_STRONG_INLINE Packet1cd pmul<Packet1cd>(const Packet1cd& a, const Packet1cd& b)
336 {
337  Packet2d a_re, a_im, v1, v2;
338 
339  // Permute and multiply the real parts of a and b
340  a_re = vec_perm(a.v, a.v, p16uc_PSET64_HI);
341  // Get the imaginary parts of a
342  a_im = vec_perm(a.v, a.v, p16uc_PSET64_LO);
343  // multiply a_re * b
344  v1 = vec_madd(a_re, b.v, p2d_ZERO);
345  // multiply a_im * b and get the conjugate result
346  v2 = vec_madd(a_im, b.v, p2d_ZERO);
347  v2 = reinterpret_cast<Packet2d>(vec_sld(reinterpret_cast<Packet4ui>(v2), reinterpret_cast<Packet4ui>(v2), 8));
348  v2 = pxor(v2, reinterpret_cast<Packet2d>(p2ul_CONJ_XOR1));
349 
350  return Packet1cd(padd<Packet2d>(v1, v2));
351 }
352 
353 template<> EIGEN_STRONG_INLINE Packet1cd pand <Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(pand(a.v,b.v)); }
354 template<> EIGEN_STRONG_INLINE Packet1cd por <Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(por(a.v,b.v)); }
355 template<> EIGEN_STRONG_INLINE Packet1cd pxor <Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(pxor(a.v,b.v)); }
356 template<> EIGEN_STRONG_INLINE Packet1cd pandnot<Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(pandnot(a.v, b.v)); }
357 
358 template<> EIGEN_STRONG_INLINE Packet1cd ploaddup<Packet1cd>(const std::complex<double>* from) { return pset1<Packet1cd>(*from); }
359 
360 template<> EIGEN_STRONG_INLINE void prefetch<std::complex<double> >(const std::complex<double> * addr) { EIGEN_PPC_PREFETCH(addr); }
361 
362 template<> EIGEN_STRONG_INLINE std::complex<double> pfirst<Packet1cd>(const Packet1cd& a)
363 {
364  std::complex<double> EIGEN_ALIGN16 res[2];
365  pstore<std::complex<double> >(res, a);
366 
367  return res[0];
368 }
369 
370 template<> EIGEN_STRONG_INLINE Packet1cd preverse(const Packet1cd& a) { return a; }
371 
372 template<> EIGEN_STRONG_INLINE std::complex<double> predux<Packet1cd>(const Packet1cd& a) { return pfirst(a); }
373 template<> EIGEN_STRONG_INLINE Packet1cd preduxp<Packet1cd>(const Packet1cd* vecs) { return vecs[0]; }
374 
375 template<> EIGEN_STRONG_INLINE std::complex<double> predux_mul<Packet1cd>(const Packet1cd& a) { return pfirst(a); }
376 
377 template<int Offset>
378 struct palign_impl<Offset,Packet1cd>
379 {
380  static EIGEN_STRONG_INLINE void run(Packet1cd& /*first*/, const Packet1cd& /*second*/)
381  {
382  // FIXME is it sure we never have to align a Packet1cd?
383  // Even though a std::complex<double> has 16 bytes, it is not necessarily aligned on a 16 bytes boundary...
384  }
385 };
386 
387 template<> struct conj_helper<Packet1cd, Packet1cd, false,true>
388 {
389  EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet1cd& y, const Packet1cd& c) const
390  { return padd(pmul(x,y),c); }
391 
392  EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& a, const Packet1cd& b) const
393  {
394  return internal::pmul(a, pconj(b));
395  }
396 };
397 
398 template<> struct conj_helper<Packet1cd, Packet1cd, true,false>
399 {
400  EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet1cd& y, const Packet1cd& c) const
401  { return padd(pmul(x,y),c); }
402 
403  EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& a, const Packet1cd& b) const
404  {
405  return internal::pmul(pconj(a), b);
406  }
407 };
408 
409 template<> struct conj_helper<Packet1cd, Packet1cd, true,true>
410 {
411  EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet1cd& y, const Packet1cd& c) const
412  { return padd(pmul(x,y),c); }
413 
414  EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& a, const Packet1cd& b) const
415  {
416  return pconj(internal::pmul(a, b));
417  }
418 };
419 template<> struct conj_helper<Packet2d, Packet1cd, false,false>
420 {
421  EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet2d& x, const Packet1cd& y, const Packet1cd& c) const
422  { return padd(c, pmul(x,y)); }
423 
424  EIGEN_STRONG_INLINE Packet1cd pmul(const Packet2d& x, const Packet1cd& y) const
425  { return Packet1cd(internal::pmul<Packet2d>(x, y.v)); }
426 };
427 
428 template<> struct conj_helper<Packet1cd, Packet2d, false,false>
429 {
430  EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet2d& y, const Packet1cd& c) const
431  { return padd(c, pmul(x,y)); }
432 
433  EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& x, const Packet2d& y) const
434  { return Packet1cd(internal::pmul<Packet2d>(x.v, y)); }
435 };
436 
437 template<> EIGEN_STRONG_INLINE Packet1cd pdiv<Packet1cd>(const Packet1cd& a, const Packet1cd& b)
438 {
439  // TODO optimize it for AltiVec
440  Packet1cd res = conj_helper<Packet1cd,Packet1cd,false,true>().pmul(a,b);
441  Packet2d s = pmul<Packet2d>(b.v, b.v);
442  return Packet1cd(pdiv(res.v, padd<Packet2d>(s, vec_perm(s, s, p16uc_REVERSE64))));
443 }
444 
445 EIGEN_STRONG_INLINE Packet1cd pcplxflip/*<Packet1cd>*/(const Packet1cd& x)
446 {
447  return Packet1cd(preverse(Packet2d(x.v)));
448 }
449 
450 EIGEN_STRONG_INLINE void ptranspose(PacketBlock<Packet1cd,2>& kernel)
451 {
452  Packet2d tmp = vec_perm(kernel.packet[0].v, kernel.packet[1].v, p16uc_TRANSPOSE64_HI);
453  kernel.packet[1].v = vec_perm(kernel.packet[0].v, kernel.packet[1].v, p16uc_TRANSPOSE64_LO);
454  kernel.packet[0].v = tmp;
455 }
456 #endif // __VSX__
457 } // end namespace internal
458 
459 } // end namespace Eigen
460 
461 #endif // EIGEN_COMPLEX32_ALTIVEC_H
Eigen::half
Definition: Half.h:76
Eigen::Aligned16
Data pointer is aligned on a 16 bytes boundary.
Definition: Constants.h:230
Eigen::internal::conj_helper
Definition: BlasUtil.h:61
Eigen::internal::unpacket_traits
Definition: XprHelper.h:158
Eigen
Namespace containing all symbols from the Eigen library.
Definition: bench_norm.cpp:85
std
Definition: Half.h:529
Eigen::internal::packet_traits
Definition: GenericPacketMath.h:96
Eigen::internal::Packet1cd
Definition: Complex.h:265
Eigen::internal::default_packet_traits
Definition: GenericPacketMath.h:42
Eigen::internal::conj_helper< Packet1cd, Packet1cd, false, true >
Definition: Complex.h:379
Eigen::Index
EIGEN_DEFAULT_DENSE_INDEX_TYPE Index
The Index type as used for the API.
Definition: Meta.h:33
Eigen::internal::conj_helper< Packet2cf, Packet2cf, false, true >
Definition: Complex.h:194
Eigen::internal::PacketBlock
Definition: GenericPacketMath.h:539
internal
Definition: BandTriangularSolver.h:13
complex
Definition: datatypes.h:12
Eigen::internal::palign_impl
Definition: GenericPacketMath.h:492
Eigen::internal::Packet4f
Definition: PacketMath.h:44
Eigen::internal::Packet2cf
Definition: Complex.h:30
Eigen::internal::Selector
Definition: GenericPacketMath.h:552
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