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Eigen  3.4.0
ZVector/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) 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 #if !defined(__ARCH__) || (defined(__ARCH__) && __ARCH__ >= 12)
19 static Packet4ui p4ui_CONJ_XOR = { 0x00000000, 0x80000000, 0x00000000, 0x80000000 }; //vec_mergeh((Packet4ui)p4i_ZERO, (Packet4ui)p4f_MZERO);
20 #endif
21 
22 static Packet2ul p2ul_CONJ_XOR1 = (Packet2ul) vec_sld((Packet4ui) p2d_ZERO_, (Packet4ui) p2l_ZERO, 8);//{ 0x8000000000000000, 0x0000000000000000 };
23 static Packet2ul p2ul_CONJ_XOR2 = (Packet2ul) vec_sld((Packet4ui) p2l_ZERO, (Packet4ui) p2d_ZERO_, 8);//{ 0x8000000000000000, 0x0000000000000000 };
24 
25 struct Packet1cd
26 {
27  EIGEN_STRONG_INLINE Packet1cd() {}
28  EIGEN_STRONG_INLINE explicit Packet1cd(const Packet2d& a) : v(a) {}
29  Packet2d v;
30 };
31 
32 struct Packet2cf
33 {
34  EIGEN_STRONG_INLINE Packet2cf() {}
35  EIGEN_STRONG_INLINE explicit Packet2cf(const Packet4f& a) : v(a) {}
36 #if !defined(__ARCH__) || (defined(__ARCH__) && __ARCH__ < 12)
37  union {
38  Packet4f v;
39  Packet1cd cd[2];
40  };
41 #else
42  Packet4f v;
43 #endif
44 };
45 
46 template<> struct packet_traits<std::complex<float> > : default_packet_traits
47 {
48  typedef Packet2cf type;
49  typedef Packet2cf half;
50  enum {
51  Vectorizable = 1,
52  AlignedOnScalar = 1,
53  size = 2,
54  HasHalfPacket = 0,
55 
56  HasAdd = 1,
57  HasSub = 1,
58  HasMul = 1,
59  HasDiv = 1,
60  HasNegate = 1,
61  HasAbs = 0,
62  HasAbs2 = 0,
63  HasMin = 0,
64  HasMax = 0,
65  HasBlend = 1,
66  HasSetLinear = 0
67  };
68 };
69 
70 
71 template<> struct packet_traits<std::complex<double> > : default_packet_traits
72 {
73  typedef Packet1cd type;
74  typedef Packet1cd half;
75  enum {
76  Vectorizable = 1,
77  AlignedOnScalar = 1,
78  size = 1,
79  HasHalfPacket = 0,
80 
81  HasAdd = 1,
82  HasSub = 1,
83  HasMul = 1,
84  HasDiv = 1,
85  HasNegate = 1,
86  HasAbs = 0,
87  HasAbs2 = 0,
88  HasMin = 0,
89  HasMax = 0,
90  HasSetLinear = 0
91  };
92 };
93 
94 template<> struct unpacket_traits<Packet2cf> {
95  typedef std::complex<float> type;
96  enum {size=2, alignment=Aligned16, vectorizable=true, masked_load_available=false, masked_store_available=false};
97  typedef Packet2cf half;
98  typedef Packet4f as_real;
99 };
100 template<> struct unpacket_traits<Packet1cd> {
101  typedef std::complex<double> type;
102  enum {size=1, alignment=Aligned16, vectorizable=true, masked_load_available=false, masked_store_available=false};
103  typedef Packet1cd half;
104  typedef Packet2d as_real;
105 };
106 
107 /* Forward declaration */
108 EIGEN_STRONG_INLINE void ptranspose(PacketBlock<Packet2cf,2>& kernel);
109 
110 /* complex<double> first */
111 template<> EIGEN_STRONG_INLINE Packet1cd pload <Packet1cd>(const std::complex<double>* from) { EIGEN_DEBUG_ALIGNED_LOAD return Packet1cd(pload<Packet2d>((const double*)from)); }
112 template<> EIGEN_STRONG_INLINE Packet1cd ploadu<Packet1cd>(const std::complex<double>* from) { EIGEN_DEBUG_UNALIGNED_LOAD return Packet1cd(ploadu<Packet2d>((const double*)from)); }
113 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); }
114 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); }
115 
116 template<> EIGEN_STRONG_INLINE Packet1cd pset1<Packet1cd>(const std::complex<double>& from)
117 { /* here we really have to use unaligned loads :( */ return ploadu<Packet1cd>(&from); }
118 
119 template<> EIGEN_DEVICE_FUNC inline Packet1cd pgather<std::complex<double>, Packet1cd>(const std::complex<double>* from, Index stride EIGEN_UNUSED)
120 {
121  return pload<Packet1cd>(from);
122 }
123 template<> EIGEN_DEVICE_FUNC inline void pscatter<std::complex<double>, Packet1cd>(std::complex<double>* to, const Packet1cd& from, Index stride EIGEN_UNUSED)
124 {
125  pstore<std::complex<double> >(to, from);
126 }
127 template<> EIGEN_STRONG_INLINE Packet1cd padd<Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(a.v + b.v); }
128 template<> EIGEN_STRONG_INLINE Packet1cd psub<Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(a.v - b.v); }
129 template<> EIGEN_STRONG_INLINE Packet1cd pnegate(const Packet1cd& a) { return Packet1cd(pnegate(Packet2d(a.v))); }
130 template<> EIGEN_STRONG_INLINE Packet1cd pconj(const Packet1cd& a) { return Packet1cd((Packet2d)vec_xor((Packet2d)a.v, (Packet2d)p2ul_CONJ_XOR2)); }
131 template<> EIGEN_STRONG_INLINE Packet1cd pmul<Packet1cd>(const Packet1cd& a, const Packet1cd& b)
132 {
133  Packet2d a_re, a_im, v1, v2;
134 
135  // Permute and multiply the real parts of a and b
136  a_re = vec_perm(a.v, a.v, p16uc_PSET64_HI);
137  // Get the imaginary parts of a
138  a_im = vec_perm(a.v, a.v, p16uc_PSET64_LO);
139  // multiply a_re * b
140  v1 = vec_madd(a_re, b.v, p2d_ZERO);
141  // multiply a_im * b and get the conjugate result
142  v2 = vec_madd(a_im, b.v, p2d_ZERO);
143  v2 = (Packet2d) vec_sld((Packet4ui)v2, (Packet4ui)v2, 8);
144  v2 = (Packet2d) vec_xor((Packet2d)v2, (Packet2d) p2ul_CONJ_XOR1);
145 
146  return Packet1cd(v1 + v2);
147 }
148 template<> EIGEN_STRONG_INLINE Packet1cd pand <Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(vec_and(a.v,b.v)); }
149 template<> EIGEN_STRONG_INLINE Packet1cd por <Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(vec_or(a.v,b.v)); }
150 template<> EIGEN_STRONG_INLINE Packet1cd pxor <Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(vec_xor(a.v,b.v)); }
151 template<> EIGEN_STRONG_INLINE Packet1cd pandnot <Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(vec_and(a.v, vec_nor(b.v,b.v))); }
152 template<> EIGEN_STRONG_INLINE Packet1cd ploaddup<Packet1cd>(const std::complex<double>* from) { return pset1<Packet1cd>(*from); }
153 template<> EIGEN_STRONG_INLINE Packet1cd pcmp_eq(const Packet1cd& a, const Packet1cd& b) {
154  Packet2d eq = vec_cmpeq (a.v, b.v);
155  Packet2d tmp = { eq[1], eq[0] };
156  return (Packet1cd)pand<Packet2d>(eq, tmp);
157 }
158 
159 template<> EIGEN_STRONG_INLINE void prefetch<std::complex<double> >(const std::complex<double> * addr) { EIGEN_ZVECTOR_PREFETCH(addr); }
160 
161 template<> EIGEN_STRONG_INLINE std::complex<double> pfirst<Packet1cd>(const Packet1cd& a)
162 {
163  EIGEN_ALIGN16 std::complex<double> res;
164  pstore<std::complex<double> >(&res, a);
165 
166  return res;
167 }
168 
169 template<> EIGEN_STRONG_INLINE Packet1cd preverse(const Packet1cd& a) { return a; }
170 template<> EIGEN_STRONG_INLINE std::complex<double> predux<Packet1cd>(const Packet1cd& a)
171 {
172  return pfirst(a);
173 }
174 template<> EIGEN_STRONG_INLINE std::complex<double> predux_mul<Packet1cd>(const Packet1cd& a)
175 {
176  return pfirst(a);
177 }
178 EIGEN_MAKE_CONJ_HELPER_CPLX_REAL(Packet1cd,Packet2d)
179 
180 template<> EIGEN_STRONG_INLINE Packet1cd pdiv<Packet1cd>(const Packet1cd& a, const Packet1cd& b)
181 {
182  // TODO optimize it for AltiVec
183  Packet1cd res = pmul(a,pconj(b));
184  Packet2d s = vec_madd(b.v, b.v, p2d_ZERO_);
185  return Packet1cd(pdiv(res.v, s + vec_perm(s, s, p16uc_REVERSE64)));
186 }
187 
188 EIGEN_STRONG_INLINE Packet1cd pcplxflip/*<Packet1cd>*/(const Packet1cd& x)
189 {
190  return Packet1cd(preverse(Packet2d(x.v)));
191 }
192 
193 EIGEN_STRONG_INLINE void ptranspose(PacketBlock<Packet1cd,2>& kernel)
194 {
195  Packet2d tmp = vec_perm(kernel.packet[0].v, kernel.packet[1].v, p16uc_TRANSPOSE64_HI);
196  kernel.packet[1].v = vec_perm(kernel.packet[0].v, kernel.packet[1].v, p16uc_TRANSPOSE64_LO);
197  kernel.packet[0].v = tmp;
198 }
199 
200 /* complex<float> follows */
201 template<> EIGEN_STRONG_INLINE Packet2cf pload <Packet2cf>(const std::complex<float>* from) { EIGEN_DEBUG_ALIGNED_LOAD return Packet2cf(pload<Packet4f>((const float*)from)); }
202 template<> EIGEN_STRONG_INLINE Packet2cf ploadu<Packet2cf>(const std::complex<float>* from) { EIGEN_DEBUG_UNALIGNED_LOAD return Packet2cf(ploadu<Packet4f>((const float*)from)); }
203 template<> EIGEN_STRONG_INLINE void pstore <std::complex<float> >(std::complex<float> * to, const Packet2cf& from) { EIGEN_DEBUG_ALIGNED_STORE pstore((float*)to, from.v); }
204 template<> EIGEN_STRONG_INLINE void pstoreu<std::complex<float> >(std::complex<float> * to, const Packet2cf& from) { EIGEN_DEBUG_UNALIGNED_STORE pstoreu((float*)to, from.v); }
205 
206 template<> EIGEN_STRONG_INLINE std::complex<float> pfirst<Packet2cf>(const Packet2cf& a)
207 {
208  EIGEN_ALIGN16 std::complex<float> res[2];
209  pstore<std::complex<float> >(res, a);
210 
211  return res[0];
212 }
213 
214 
215 #if !defined(__ARCH__) || (defined(__ARCH__) && __ARCH__ < 12)
216 template<> EIGEN_STRONG_INLINE Packet2cf pset1<Packet2cf>(const std::complex<float>& from)
217 {
218  Packet2cf res;
219  res.cd[0] = Packet1cd(vec_ld2f((const float *)&from));
220  res.cd[1] = res.cd[0];
221  return res;
222 }
223 #else
224 template<> EIGEN_STRONG_INLINE Packet2cf pset1<Packet2cf>(const std::complex<float>& from)
225 {
226  Packet2cf res;
227  if((std::ptrdiff_t(&from) % 16) == 0)
228  res.v = pload<Packet4f>((const float *)&from);
229  else
230  res.v = ploadu<Packet4f>((const float *)&from);
231  res.v = vec_perm(res.v, res.v, p16uc_PSET64_HI);
232  return res;
233 }
234 #endif
235 
236 template<> EIGEN_DEVICE_FUNC inline Packet2cf pgather<std::complex<float>, Packet2cf>(const std::complex<float>* from, Index stride)
237 {
238  EIGEN_ALIGN16 std::complex<float> af[2];
239  af[0] = from[0*stride];
240  af[1] = from[1*stride];
241  return pload<Packet2cf>(af);
242 }
243 template<> EIGEN_DEVICE_FUNC inline void pscatter<std::complex<float>, Packet2cf>(std::complex<float>* to, const Packet2cf& from, Index stride)
244 {
245  EIGEN_ALIGN16 std::complex<float> af[2];
246  pstore<std::complex<float> >((std::complex<float> *) af, from);
247  to[0*stride] = af[0];
248  to[1*stride] = af[1];
249 }
250 
251 template<> EIGEN_STRONG_INLINE Packet2cf padd<Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(padd<Packet4f>(a.v, b.v)); }
252 template<> EIGEN_STRONG_INLINE Packet2cf psub<Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(psub<Packet4f>(a.v, b.v)); }
253 template<> EIGEN_STRONG_INLINE Packet2cf pnegate(const Packet2cf& a) { return Packet2cf(pnegate(Packet4f(a.v))); }
254 
255 template<> EIGEN_STRONG_INLINE Packet2cf pand <Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(pand<Packet4f>(a.v,b.v)); }
256 template<> EIGEN_STRONG_INLINE Packet2cf por <Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(por<Packet4f>(a.v,b.v)); }
257 template<> EIGEN_STRONG_INLINE Packet2cf pxor <Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(pxor<Packet4f>(a.v,b.v)); }
258 template<> EIGEN_STRONG_INLINE Packet2cf pandnot<Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(pandnot<Packet4f>(a.v,b.v)); }
259 
260 template<> EIGEN_STRONG_INLINE Packet2cf ploaddup<Packet2cf>(const std::complex<float>* from) { return pset1<Packet2cf>(*from); }
261 
262 template<> EIGEN_STRONG_INLINE void prefetch<std::complex<float> >(const std::complex<float> * addr) { EIGEN_ZVECTOR_PREFETCH(addr); }
263 
264 
265 #if !defined(__ARCH__) || (defined(__ARCH__) && __ARCH__ < 12)
266 
267 template<> EIGEN_STRONG_INLINE Packet2cf pcmp_eq(const Packet2cf& a, const Packet2cf& b) {
268  Packet4f eq = pcmp_eq<Packet4f> (a.v, b.v);
269  Packet2cf res;
270  Packet2d tmp1 = { eq.v4f[0][1], eq.v4f[0][0] };
271  Packet2d tmp2 = { eq.v4f[1][1], eq.v4f[1][0] };
272  res.v.v4f[0] = pand<Packet2d>(eq.v4f[0], tmp1);
273  res.v.v4f[1] = pand<Packet2d>(eq.v4f[1], tmp2);
274  return res;
275 }
276 
277 template<> EIGEN_STRONG_INLINE Packet2cf pconj(const Packet2cf& a)
278 {
279  Packet2cf res;
280  res.v.v4f[0] = pconj(Packet1cd(reinterpret_cast<Packet2d>(a.v.v4f[0]))).v;
281  res.v.v4f[1] = pconj(Packet1cd(reinterpret_cast<Packet2d>(a.v.v4f[1]))).v;
282  return res;
283 }
284 
285 template<> EIGEN_STRONG_INLINE Packet2cf pmul<Packet2cf>(const Packet2cf& a, const Packet2cf& b)
286 {
287  Packet2cf res;
288  res.v.v4f[0] = pmul(Packet1cd(reinterpret_cast<Packet2d>(a.v.v4f[0])), Packet1cd(reinterpret_cast<Packet2d>(b.v.v4f[0]))).v;
289  res.v.v4f[1] = pmul(Packet1cd(reinterpret_cast<Packet2d>(a.v.v4f[1])), Packet1cd(reinterpret_cast<Packet2d>(b.v.v4f[1]))).v;
290  return res;
291 }
292 
293 template<> EIGEN_STRONG_INLINE Packet2cf preverse(const Packet2cf& a)
294 {
295  Packet2cf res;
296  res.cd[0] = a.cd[1];
297  res.cd[1] = a.cd[0];
298  return res;
299 }
300 
301 template<> EIGEN_STRONG_INLINE std::complex<float> predux<Packet2cf>(const Packet2cf& a)
302 {
303  std::complex<float> res;
304  Packet1cd b = padd<Packet1cd>(a.cd[0], a.cd[1]);
305  vec_st2f(b.v, (float*)&res);
306  return res;
307 }
308 
309 template<> EIGEN_STRONG_INLINE std::complex<float> predux_mul<Packet2cf>(const Packet2cf& a)
310 {
311  std::complex<float> res;
312  Packet1cd b = pmul<Packet1cd>(a.cd[0], a.cd[1]);
313  vec_st2f(b.v, (float*)&res);
314  return res;
315 }
316 
317 EIGEN_MAKE_CONJ_HELPER_CPLX_REAL(Packet2cf,Packet4f)
318 
319 template<> EIGEN_STRONG_INLINE Packet2cf pdiv<Packet2cf>(const Packet2cf& a, const Packet2cf& b)
320 {
321  // TODO optimize it for AltiVec
322  Packet2cf res;
323  res.cd[0] = pdiv<Packet1cd>(a.cd[0], b.cd[0]);
324  res.cd[1] = pdiv<Packet1cd>(a.cd[1], b.cd[1]);
325  return res;
326 }
327 
328 EIGEN_STRONG_INLINE Packet2cf pcplxflip/*<Packet2cf>*/(const Packet2cf& x)
329 {
330  Packet2cf res;
331  res.cd[0] = pcplxflip(x.cd[0]);
332  res.cd[1] = pcplxflip(x.cd[1]);
333  return res;
334 }
335 
336 EIGEN_STRONG_INLINE void ptranspose(PacketBlock<Packet2cf,2>& kernel)
337 {
338  Packet1cd tmp = kernel.packet[0].cd[1];
339  kernel.packet[0].cd[1] = kernel.packet[1].cd[0];
340  kernel.packet[1].cd[0] = tmp;
341 }
342 
343 template<> EIGEN_STRONG_INLINE Packet2cf pblend(const Selector<2>& ifPacket, const Packet2cf& thenPacket, const Packet2cf& elsePacket) {
344  Packet2cf result;
345  const Selector<4> ifPacket4 = { ifPacket.select[0], ifPacket.select[0], ifPacket.select[1], ifPacket.select[1] };
346  result.v = pblend<Packet4f>(ifPacket4, thenPacket.v, elsePacket.v);
347  return result;
348 }
349 #else
350 template<> EIGEN_STRONG_INLINE Packet2cf pcmp_eq(const Packet2cf& a, const Packet2cf& b) {
351  Packet4f eq = vec_cmpeq (a.v, b.v);
352  Packet4f tmp = { eq[1], eq[0], eq[3], eq[2] };
353  return (Packet2cf)pand<Packet4f>(eq, tmp);
354 }
355 template<> EIGEN_STRONG_INLINE Packet2cf pconj(const Packet2cf& a) { return Packet2cf(pxor<Packet4f>(a.v, reinterpret_cast<Packet4f>(p4ui_CONJ_XOR))); }
356 template<> EIGEN_STRONG_INLINE Packet2cf pmul<Packet2cf>(const Packet2cf& a, const Packet2cf& b)
357 {
358  Packet4f a_re, a_im, prod, prod_im;
359 
360  // Permute and multiply the real parts of a and b
361  a_re = vec_perm(a.v, a.v, p16uc_PSET32_WODD);
362 
363  // Get the imaginary parts of a
364  a_im = vec_perm(a.v, a.v, p16uc_PSET32_WEVEN);
365 
366  // multiply a_im * b and get the conjugate result
367  prod_im = a_im * b.v;
368  prod_im = pxor<Packet4f>(prod_im, reinterpret_cast<Packet4f>(p4ui_CONJ_XOR));
369  // permute back to a proper order
370  prod_im = vec_perm(prod_im, prod_im, p16uc_COMPLEX32_REV);
371 
372  // multiply a_re * b, add prod_im
373  prod = pmadd<Packet4f>(a_re, b.v, prod_im);
374 
375  return Packet2cf(prod);
376 }
377 
378 template<> EIGEN_STRONG_INLINE Packet2cf preverse(const Packet2cf& a)
379 {
380  Packet4f rev_a;
381  rev_a = vec_perm(a.v, a.v, p16uc_COMPLEX32_REV2);
382  return Packet2cf(rev_a);
383 }
384 
385 template<> EIGEN_STRONG_INLINE std::complex<float> predux<Packet2cf>(const Packet2cf& a)
386 {
387  Packet4f b;
388  b = vec_sld(a.v, a.v, 8);
389  b = padd<Packet4f>(a.v, b);
390  return pfirst<Packet2cf>(Packet2cf(b));
391 }
392 
393 template<> EIGEN_STRONG_INLINE std::complex<float> predux_mul<Packet2cf>(const Packet2cf& a)
394 {
395  Packet4f b;
396  Packet2cf prod;
397  b = vec_sld(a.v, a.v, 8);
398  prod = pmul<Packet2cf>(a, Packet2cf(b));
399 
400  return pfirst<Packet2cf>(prod);
401 }
402 
403 EIGEN_MAKE_CONJ_HELPER_CPLX_REAL(Packet2cf,Packet4f)
404 
405 template<> EIGEN_STRONG_INLINE Packet2cf pdiv<Packet2cf>(const Packet2cf& a, const Packet2cf& b)
406 {
407  // TODO optimize it for AltiVec
408  Packet2cf res = pmul(a, pconj(b));
409  Packet4f s = pmul<Packet4f>(b.v, b.v);
410  return Packet2cf(pdiv(res.v, padd<Packet4f>(s, vec_perm(s, s, p16uc_COMPLEX32_REV))));
411 }
412 
413 template<> EIGEN_STRONG_INLINE Packet2cf pcplxflip<Packet2cf>(const Packet2cf& x)
414 {
415  return Packet2cf(vec_perm(x.v, x.v, p16uc_COMPLEX32_REV));
416 }
417 
418 EIGEN_STRONG_INLINE void ptranspose(PacketBlock<Packet2cf,2>& kernel)
419 {
420  Packet4f tmp = vec_perm(kernel.packet[0].v, kernel.packet[1].v, p16uc_TRANSPOSE64_HI);
421  kernel.packet[1].v = vec_perm(kernel.packet[0].v, kernel.packet[1].v, p16uc_TRANSPOSE64_LO);
422  kernel.packet[0].v = tmp;
423 }
424 
425 template<> EIGEN_STRONG_INLINE Packet2cf pblend(const Selector<2>& ifPacket, const Packet2cf& thenPacket, const Packet2cf& elsePacket) {
426  Packet2cf result;
427  result.v = reinterpret_cast<Packet4f>(pblend<Packet2d>(ifPacket, reinterpret_cast<Packet2d>(thenPacket.v), reinterpret_cast<Packet2d>(elsePacket.v)));
428  return result;
429 }
430 #endif
431 
432 } // end namespace internal
433 
434 } // end namespace Eigen
435 
436 #endif // EIGEN_COMPLEX32_ALTIVEC_H
@ Aligned16
Definition: Constants.h:235
Namespace containing all symbols from the Eigen library.
Definition: Core:141
EIGEN_DEFAULT_DENSE_INDEX_TYPE Index
The Index type as used for the API.
Definition: Meta.h:74