10 #ifndef EIGEN_PACKET_MATH_ALTIVEC_H 11 #define EIGEN_PACKET_MATH_ALTIVEC_H 17 #ifndef EIGEN_CACHEFRIENDLY_PRODUCT_THRESHOLD 18 #define EIGEN_CACHEFRIENDLY_PRODUCT_THRESHOLD 4 21 #ifndef EIGEN_HAS_SINGLE_INSTRUCTION_MADD 22 #define EIGEN_HAS_SINGLE_INSTRUCTION_MADD 25 #ifndef EIGEN_HAS_SINGLE_INSTRUCTION_CJMADD 26 #define EIGEN_HAS_SINGLE_INSTRUCTION_CJMADD 30 #ifndef EIGEN_ARCH_DEFAULT_NUMBER_OF_REGISTERS 31 #define EIGEN_ARCH_DEFAULT_NUMBER_OF_REGISTERS 32 34 typedef __vector
float Packet4f;
35 typedef __vector
int Packet4i;
36 typedef __vector
unsigned int Packet4ui;
37 typedef __vector __bool
int Packet4bi;
38 typedef __vector
short int Packet8i;
39 typedef __vector
unsigned char Packet16uc;
44 #define _EIGEN_DECLARE_CONST_FAST_Packet4f(NAME,X) \ 45 Packet4f p4f_##NAME = (Packet4f) vec_splat_s32(X) 47 #define _EIGEN_DECLARE_CONST_FAST_Packet4i(NAME,X) \ 48 Packet4i p4i_##NAME = vec_splat_s32(X) 50 #define _EIGEN_DECLARE_CONST_Packet4f(NAME,X) \ 51 Packet4f p4f_##NAME = pset1<Packet4f>(X) 53 #define _EIGEN_DECLARE_CONST_Packet4i(NAME,X) \ 54 Packet4i p4i_##NAME = pset1<Packet4i>(X) 56 #define _EIGEN_DECLARE_CONST_Packet2d(NAME,X) \ 57 Packet2d p2d_##NAME = pset1<Packet2d>(X) 59 #define _EIGEN_DECLARE_CONST_Packet2l(NAME,X) \ 60 Packet2l p2l_##NAME = pset1<Packet2l>(X) 62 #define _EIGEN_DECLARE_CONST_Packet4f_FROM_INT(NAME,X) \ 63 const Packet4f p4f_##NAME = reinterpret_cast<Packet4f>(pset1<Packet4i>(X)) 66 #define DST_CTRL(size, count, stride) (((size) << 24) | ((count) << 16) | (stride)) 70 static _EIGEN_DECLARE_CONST_FAST_Packet4f(ZERO, 0);
71 static _EIGEN_DECLARE_CONST_FAST_Packet4i(ZERO, 0);
73 static _EIGEN_DECLARE_CONST_FAST_Packet4i(ONE,1);
74 static Packet4f p4f_ONE = vec_ctf(p4i_ONE, 0);
76 static _EIGEN_DECLARE_CONST_FAST_Packet4i(MINUS16,-16);
77 static _EIGEN_DECLARE_CONST_FAST_Packet4i(MINUS1,-1);
78 static Packet4f p4f_ZERO_ = (Packet4f) vec_sl((Packet4ui)p4i_MINUS1, (Packet4ui)p4i_MINUS1);
80 static Packet4f p4f_COUNTDOWN = { 0.0, 1.0, 2.0, 3.0 };
81 static Packet4i p4i_COUNTDOWN = { 0, 1, 2, 3 };
83 static Packet16uc p16uc_REVERSE32 = { 12,13,14,15, 8,9,10,11, 4,5,6,7, 0,1,2,3 };
84 static Packet16uc p16uc_DUPLICATE32_HI = { 0,1,2,3, 0,1,2,3, 4,5,6,7, 4,5,6,7 };
88 #define _EIGEN_MASK_ALIGNMENT 0xfffffffffffffff0 90 #define _EIGEN_MASK_ALIGNMENT 0xfffffff0 93 #define _EIGEN_ALIGNED_PTR(x) ((ptrdiff_t)(x) & _EIGEN_MASK_ALIGNMENT) 98 static Packet16uc p16uc_FORWARD = vec_lvsl(0, (
float*)0);
99 static Packet16uc p16uc_REVERSE64 = { 8,9,10,11, 12,13,14,15, 0,1,2,3, 4,5,6,7 };
100 static Packet16uc p16uc_PSET32_WODD = vec_sld((Packet16uc) vec_splat((Packet4ui)p16uc_FORWARD, 0), (Packet16uc) vec_splat((Packet4ui)p16uc_FORWARD, 2), 8);
101 static Packet16uc p16uc_PSET32_WEVEN = vec_sld(p16uc_DUPLICATE32_HI, (Packet16uc) vec_splat((Packet4ui)p16uc_FORWARD, 3), 8);
102 static Packet16uc p16uc_HALF64_0_16 = vec_sld((Packet16uc)p4i_ZERO, vec_splat((Packet16uc) vec_abs(p4i_MINUS16), 3), 8);
104 static Packet16uc p16uc_FORWARD = p16uc_REVERSE32;
105 static Packet16uc p16uc_REVERSE64 = { 8,9,10,11, 12,13,14,15, 0,1,2,3, 4,5,6,7 };
106 static Packet16uc p16uc_PSET32_WODD = vec_sld((Packet16uc) vec_splat((Packet4ui)p16uc_FORWARD, 1), (Packet16uc) vec_splat((Packet4ui)p16uc_FORWARD, 3), 8);
107 static Packet16uc p16uc_PSET32_WEVEN = vec_sld((Packet16uc) vec_splat((Packet4ui)p16uc_FORWARD, 0), (Packet16uc) vec_splat((Packet4ui)p16uc_FORWARD, 2), 8);
108 static Packet16uc p16uc_HALF64_0_16 = vec_sld(vec_splat((Packet16uc) vec_abs(p4i_MINUS16), 0), (Packet16uc)p4i_ZERO, 8);
109 #endif // _BIG_ENDIAN 111 static Packet16uc p16uc_PSET64_HI = (Packet16uc) vec_mergeh((Packet4ui)p16uc_PSET32_WODD, (Packet4ui)p16uc_PSET32_WEVEN);
112 static Packet16uc p16uc_PSET64_LO = (Packet16uc) vec_mergel((Packet4ui)p16uc_PSET32_WODD, (Packet4ui)p16uc_PSET32_WEVEN);
113 static Packet16uc p16uc_TRANSPOSE64_HI = vec_add(p16uc_PSET64_HI, p16uc_HALF64_0_16);
114 static Packet16uc p16uc_TRANSPOSE64_LO = vec_add(p16uc_PSET64_LO, p16uc_HALF64_0_16);
116 static Packet16uc p16uc_COMPLEX32_REV = vec_sld(p16uc_REVERSE32, p16uc_REVERSE32, 8);
119 static Packet16uc p16uc_COMPLEX32_REV2 = vec_sld(p16uc_FORWARD, p16uc_FORWARD, 8);
121 static Packet16uc p16uc_COMPLEX32_REV2 = vec_sld(p16uc_PSET64_HI, p16uc_PSET64_LO, 8);
122 #endif // _BIG_ENDIAN 124 template<>
struct packet_traits<float> : default_packet_traits
126 typedef Packet4f type;
127 typedef Packet4f half;
143 template<>
struct packet_traits<int> : default_packet_traits
145 typedef Packet4i type;
146 typedef Packet4i half;
156 template<>
struct unpacket_traits<Packet4f> {
typedef float type;
enum {size=4, alignment=
Aligned16};
typedef Packet4f half; };
157 template<>
struct unpacket_traits<Packet4i> {
typedef int type;
enum {size=4, alignment=
Aligned16};
typedef Packet4i half; };
159 inline std::ostream & operator <<(std::ostream & s,
const Packet16uc & v)
166 for (
int i=0; i< 16; i++)
167 s << (
int)vt.n[i] <<
", ";
171 inline std::ostream & operator <<(std::ostream & s,
const Packet4f & v)
178 s << vt.n[0] <<
", " << vt.n[1] <<
", " << vt.n[2] <<
", " << vt.n[3];
182 inline std::ostream & operator <<(std::ostream & s,
const Packet4i & v)
189 s << vt.n[0] <<
", " << vt.n[1] <<
", " << vt.n[2] <<
", " << vt.n[3];
193 inline std::ostream & operator <<(std::ostream & s,
const Packet4ui & v)
200 s << vt.n[0] <<
", " << vt.n[1] <<
", " << vt.n[2] <<
", " << vt.n[3];
217 template<> EIGEN_STRONG_INLINE Packet4f pload<Packet4f>(
const float* from) { EIGEN_DEBUG_ALIGNED_LOAD
return vec_ld(0, from); }
218 template<> EIGEN_STRONG_INLINE Packet4i pload<Packet4i>(
const int* from) { EIGEN_DEBUG_ALIGNED_LOAD
return vec_ld(0, from); }
220 template<> EIGEN_STRONG_INLINE
void pstore<float>(
float* to,
const Packet4f& from) { EIGEN_DEBUG_ALIGNED_STORE vec_st(from, 0, to); }
221 template<> EIGEN_STRONG_INLINE
void pstore<int>(
int* to,
const Packet4i& from) { EIGEN_DEBUG_ALIGNED_STORE vec_st(from, 0, to); }
223 template<> EIGEN_STRONG_INLINE Packet4f pset1<Packet4f>(
const float& from) {
225 float EIGEN_ALIGN16 af[4];
227 Packet4f vc = pload<Packet4f>(af);
228 vc = vec_splat(vc, 0);
232 template<> EIGEN_STRONG_INLINE Packet4i pset1<Packet4i>(
const int& from) {
233 int EIGEN_ALIGN16 ai[4];
235 Packet4i vc = pload<Packet4i>(ai);
236 vc = vec_splat(vc, 0);
239 template<> EIGEN_STRONG_INLINE
void 240 pbroadcast4<Packet4f>(
const float *a,
241 Packet4f& a0, Packet4f& a1, Packet4f& a2, Packet4f& a3)
243 a3 = pload<Packet4f>(a);
244 a0 = vec_splat(a3, 0);
245 a1 = vec_splat(a3, 1);
246 a2 = vec_splat(a3, 2);
247 a3 = vec_splat(a3, 3);
249 template<> EIGEN_STRONG_INLINE
void 250 pbroadcast4<Packet4i>(
const int *a,
251 Packet4i& a0, Packet4i& a1, Packet4i& a2, Packet4i& a3)
253 a3 = pload<Packet4i>(a);
254 a0 = vec_splat(a3, 0);
255 a1 = vec_splat(a3, 1);
256 a2 = vec_splat(a3, 2);
257 a3 = vec_splat(a3, 3);
260 template<> EIGEN_DEVICE_FUNC
inline Packet4f pgather<float, Packet4f>(
const float* from, Index stride)
262 float EIGEN_ALIGN16 af[4];
263 af[0] = from[0*stride];
264 af[1] = from[1*stride];
265 af[2] = from[2*stride];
266 af[3] = from[3*stride];
267 return pload<Packet4f>(af);
269 template<> EIGEN_DEVICE_FUNC
inline Packet4i pgather<int, Packet4i>(
const int* from, Index stride)
271 int EIGEN_ALIGN16 ai[4];
272 ai[0] = from[0*stride];
273 ai[1] = from[1*stride];
274 ai[2] = from[2*stride];
275 ai[3] = from[3*stride];
276 return pload<Packet4i>(ai);
278 template<> EIGEN_DEVICE_FUNC
inline void pscatter<float, Packet4f>(
float* to,
const Packet4f& from, Index stride)
280 float EIGEN_ALIGN16 af[4];
281 pstore<float>(af, from);
282 to[0*stride] = af[0];
283 to[1*stride] = af[1];
284 to[2*stride] = af[2];
285 to[3*stride] = af[3];
287 template<> EIGEN_DEVICE_FUNC
inline void pscatter<int, Packet4i>(
int* to,
const Packet4i& from, Index stride)
289 int EIGEN_ALIGN16 ai[4];
290 pstore<int>((
int *)ai, from);
291 to[0*stride] = ai[0];
292 to[1*stride] = ai[1];
293 to[2*stride] = ai[2];
294 to[3*stride] = ai[3];
297 template<> EIGEN_STRONG_INLINE Packet4f plset<Packet4f>(
const float& a) {
return vec_add(pset1<Packet4f>(a), p4f_COUNTDOWN); }
298 template<> EIGEN_STRONG_INLINE Packet4i plset<Packet4i>(
const int& a) {
return vec_add(pset1<Packet4i>(a), p4i_COUNTDOWN); }
300 template<> EIGEN_STRONG_INLINE Packet4f padd<Packet4f>(
const Packet4f& a,
const Packet4f& b) {
return vec_add(a,b); }
301 template<> EIGEN_STRONG_INLINE Packet4i padd<Packet4i>(
const Packet4i& a,
const Packet4i& b) {
return vec_add(a,b); }
303 template<> EIGEN_STRONG_INLINE Packet4f psub<Packet4f>(
const Packet4f& a,
const Packet4f& b) {
return vec_sub(a,b); }
304 template<> EIGEN_STRONG_INLINE Packet4i psub<Packet4i>(
const Packet4i& a,
const Packet4i& b) {
return vec_sub(a,b); }
306 template<> EIGEN_STRONG_INLINE Packet4f pnegate(
const Packet4f& a) {
return psub<Packet4f>(p4f_ZERO, a); }
307 template<> EIGEN_STRONG_INLINE Packet4i pnegate(
const Packet4i& a) {
return psub<Packet4i>(p4i_ZERO, a); }
309 template<> EIGEN_STRONG_INLINE Packet4f pconj(
const Packet4f& a) {
return a; }
310 template<> EIGEN_STRONG_INLINE Packet4i pconj(
const Packet4i& a) {
return a; }
312 template<> EIGEN_STRONG_INLINE Packet4f pmul<Packet4f>(
const Packet4f& a,
const Packet4f& b) {
return vec_madd(a,b,p4f_ZERO); }
349 template<> EIGEN_STRONG_INLINE Packet4f pdiv<Packet4f>(
const Packet4f& a,
const Packet4f& b)
351 #ifndef __VSX__ // VSX actually provides a div instruction 352 Packet4f t, y_0, y_1;
358 t = vec_nmsub(y_0, b, p4f_ONE);
359 y_1 = vec_madd(y_0, t, y_0);
361 return vec_madd(a, y_1, p4f_ZERO);
363 return vec_div(a, b);
367 template<> EIGEN_STRONG_INLINE Packet4i pdiv<Packet4i>(
const Packet4i& ,
const Packet4i& )
368 { eigen_assert(
false &&
"packet integer division are not supported by AltiVec");
369 return pset1<Packet4i>(0);
373 template<> EIGEN_STRONG_INLINE Packet4f pmadd(
const Packet4f& a,
const Packet4f& b,
const Packet4f& c) {
return vec_madd(a, b, c); }
374 template<> EIGEN_STRONG_INLINE Packet4i pmadd(
const Packet4i& a,
const Packet4i& b,
const Packet4i& c) {
return padd(pmul(a,b), c); }
376 template<> EIGEN_STRONG_INLINE Packet4f pmin<Packet4f>(
const Packet4f& a,
const Packet4f& b) {
return vec_min(a, b); }
377 template<> EIGEN_STRONG_INLINE Packet4i pmin<Packet4i>(
const Packet4i& a,
const Packet4i& b) {
return vec_min(a, b); }
379 template<> EIGEN_STRONG_INLINE Packet4f pmax<Packet4f>(
const Packet4f& a,
const Packet4f& b) {
return vec_max(a, b); }
380 template<> EIGEN_STRONG_INLINE Packet4i pmax<Packet4i>(
const Packet4i& a,
const Packet4i& b) {
return vec_max(a, b); }
382 template<> EIGEN_STRONG_INLINE Packet4f pand<Packet4f>(
const Packet4f& a,
const Packet4f& b) {
return vec_and(a, b); }
383 template<> EIGEN_STRONG_INLINE Packet4i pand<Packet4i>(
const Packet4i& a,
const Packet4i& b) {
return vec_and(a, b); }
385 template<> EIGEN_STRONG_INLINE Packet4f por<Packet4f>(
const Packet4f& a,
const Packet4f& b) {
return vec_or(a, b); }
386 template<> EIGEN_STRONG_INLINE Packet4i por<Packet4i>(
const Packet4i& a,
const Packet4i& b) {
return vec_or(a, b); }
388 template<> EIGEN_STRONG_INLINE Packet4f pxor<Packet4f>(
const Packet4f& a,
const Packet4f& b) {
return vec_xor(a, b); }
389 template<> EIGEN_STRONG_INLINE Packet4i pxor<Packet4i>(
const Packet4i& a,
const Packet4i& b) {
return vec_xor(a, b); }
391 template<> EIGEN_STRONG_INLINE Packet4f pandnot<Packet4f>(
const Packet4f& a,
const Packet4f& b) {
return vec_and(a, vec_nor(b, b)); }
392 template<> EIGEN_STRONG_INLINE Packet4i pandnot<Packet4i>(
const Packet4i& a,
const Packet4i& b) {
return vec_and(a, vec_nor(b, b)); }
395 template<> EIGEN_STRONG_INLINE Packet4f ploadu<Packet4f>(
const float* from)
397 EIGEN_DEBUG_ALIGNED_LOAD
400 MSQ = vec_ld(0, (
unsigned char *)from);
401 LSQ = vec_ld(15, (
unsigned char *)from);
402 mask = vec_lvsl(0, from);
403 return (Packet4f) vec_perm(MSQ, LSQ, mask);
406 template<> EIGEN_STRONG_INLINE Packet4i ploadu<Packet4i>(
const int* from)
408 EIGEN_DEBUG_ALIGNED_LOAD
412 MSQ = vec_ld(0, (
unsigned char *)from);
413 LSQ = vec_ld(15, (
unsigned char *)from);
414 mask = vec_lvsl(0, from);
415 return (Packet4i) vec_perm(MSQ, LSQ, mask);
419 template<> EIGEN_STRONG_INLINE Packet4i ploadu<Packet4i>(
const int* from)
421 EIGEN_DEBUG_ALIGNED_LOAD
422 return (Packet4i) vec_vsx_ld((
long)from & 15, (
const int*) _EIGEN_ALIGNED_PTR(from));
424 template<> EIGEN_STRONG_INLINE Packet4f ploadu<Packet4f>(
const float* from)
426 EIGEN_DEBUG_ALIGNED_LOAD
427 return (Packet4f) vec_vsx_ld((
long)from & 15, (
const float*) _EIGEN_ALIGNED_PTR(from));
431 template<> EIGEN_STRONG_INLINE Packet4f ploaddup<Packet4f>(
const float* from)
434 if((ptrdiff_t(from) % 16) == 0) p = pload<Packet4f>(from);
435 else p = ploadu<Packet4f>(from);
436 return vec_perm(p, p, p16uc_DUPLICATE32_HI);
438 template<> EIGEN_STRONG_INLINE Packet4i ploaddup<Packet4i>(
const int* from)
441 if((ptrdiff_t(from) % 16) == 0) p = pload<Packet4i>(from);
442 else p = ploadu<Packet4i>(from);
443 return vec_perm(p, p, p16uc_DUPLICATE32_HI);
447 template<> EIGEN_STRONG_INLINE
void pstoreu<float>(
float* to,
const Packet4f& from)
449 EIGEN_DEBUG_UNALIGNED_STORE
452 Packet16uc MSQ, LSQ, edges;
453 Packet16uc edgeAlign, align;
455 MSQ = vec_ld(0, (
unsigned char *)to);
456 LSQ = vec_ld(15, (
unsigned char *)to);
457 edgeAlign = vec_lvsl(0, to);
458 edges=vec_perm(LSQ,MSQ,edgeAlign);
459 align = vec_lvsr( 0, to );
460 MSQ = vec_perm(edges,(Packet16uc)from,align);
461 LSQ = vec_perm((Packet16uc)from,edges,align);
462 vec_st( LSQ, 15, (
unsigned char *)to );
463 vec_st( MSQ, 0, (
unsigned char *)to );
465 template<> EIGEN_STRONG_INLINE
void pstoreu<int>(
int* to,
const Packet4i& from)
467 EIGEN_DEBUG_UNALIGNED_STORE
470 Packet16uc MSQ, LSQ, edges;
471 Packet16uc edgeAlign, align;
473 MSQ = vec_ld(0, (
unsigned char *)to);
474 LSQ = vec_ld(15, (
unsigned char *)to);
475 edgeAlign = vec_lvsl(0, to);
476 edges=vec_perm(LSQ, MSQ, edgeAlign);
477 align = vec_lvsr( 0, to );
478 MSQ = vec_perm(edges, (Packet16uc) from, align);
479 LSQ = vec_perm((Packet16uc) from, edges, align);
480 vec_st( LSQ, 15, (
unsigned char *)to );
481 vec_st( MSQ, 0, (
unsigned char *)to );
485 template<> EIGEN_STRONG_INLINE
void pstoreu<int>(
int* to,
const Packet4i& from)
487 EIGEN_DEBUG_ALIGNED_STORE
488 vec_vsx_st(from, (
long)to & 15, (
int*) _EIGEN_ALIGNED_PTR(to));
490 template<> EIGEN_STRONG_INLINE
void pstoreu<float>(
float* to,
const Packet4f& from)
492 EIGEN_DEBUG_ALIGNED_STORE
493 vec_vsx_st(from, (
long)to & 15, (
float*) _EIGEN_ALIGNED_PTR(to));
498 template<> EIGEN_STRONG_INLINE
void prefetch<float>(
const float* addr) { vec_dstt(addr, DST_CTRL(2,2,32), DST_CHAN); }
499 template<> EIGEN_STRONG_INLINE
void prefetch<int>(
const int* addr) { vec_dstt(addr, DST_CTRL(2,2,32), DST_CHAN); }
502 template<> EIGEN_STRONG_INLINE
float pfirst<Packet4f>(
const Packet4f& a) {
float EIGEN_ALIGN16 x[4]; vec_st(a, 0, x);
return x[0]; }
503 template<> EIGEN_STRONG_INLINE
int pfirst<Packet4i>(
const Packet4i& a) {
int EIGEN_ALIGN16 x[4]; vec_st(a, 0, x);
return x[0]; }
505 template<> EIGEN_STRONG_INLINE Packet4f preverse(
const Packet4f& a) {
return (Packet4f)vec_perm((Packet16uc)a,(Packet16uc)a, p16uc_REVERSE32); }
506 template<> EIGEN_STRONG_INLINE Packet4i preverse(
const Packet4i& a) {
return (Packet4i)vec_perm((Packet16uc)a,(Packet16uc)a, p16uc_REVERSE32); }
508 template<> EIGEN_STRONG_INLINE Packet4f pabs(
const Packet4f& a) {
return vec_abs(a); }
509 template<> EIGEN_STRONG_INLINE Packet4i pabs(
const Packet4i& a) {
return vec_abs(a); }
511 template<> EIGEN_STRONG_INLINE
float predux<Packet4f>(
const Packet4f& a)
514 b = (Packet4f) vec_sld(a, a, 8);
516 b = (Packet4f) vec_sld(sum, sum, 4);
517 sum = vec_add(sum, b);
521 template<> EIGEN_STRONG_INLINE Packet4f preduxp<Packet4f>(
const Packet4f* vecs)
523 Packet4f v[4], sum[4];
528 v[0] = vec_mergeh(vecs[0], vecs[2]);
529 v[1] = vec_mergel(vecs[0], vecs[2]);
530 v[2] = vec_mergeh(vecs[1], vecs[3]);
531 v[3] = vec_mergel(vecs[1], vecs[3]);
533 sum[0] = vec_mergeh(v[0], v[2]);
534 sum[1] = vec_mergel(v[0], v[2]);
535 sum[2] = vec_mergeh(v[1], v[3]);
536 sum[3] = vec_mergel(v[1], v[3]);
540 sum[0] = vec_add(sum[0], sum[1]);
542 sum[1] = vec_add(sum[2], sum[3]);
544 sum[0] = vec_add(sum[0], sum[1]);
549 template<> EIGEN_STRONG_INLINE
int predux<Packet4i>(
const Packet4i& a)
552 sum = vec_sums(a, p4i_ZERO);
554 sum = vec_sld(sum, p4i_ZERO, 12);
556 sum = vec_sld(p4i_ZERO, sum, 4);
561 template<> EIGEN_STRONG_INLINE Packet4i preduxp<Packet4i>(
const Packet4i* vecs)
563 Packet4i v[4], sum[4];
568 v[0] = vec_mergeh(vecs[0], vecs[2]);
569 v[1] = vec_mergel(vecs[0], vecs[2]);
570 v[2] = vec_mergeh(vecs[1], vecs[3]);
571 v[3] = vec_mergel(vecs[1], vecs[3]);
573 sum[0] = vec_mergeh(v[0], v[2]);
574 sum[1] = vec_mergel(v[0], v[2]);
575 sum[2] = vec_mergeh(v[1], v[3]);
576 sum[3] = vec_mergel(v[1], v[3]);
580 sum[0] = vec_add(sum[0], sum[1]);
582 sum[1] = vec_add(sum[2], sum[3]);
584 sum[0] = vec_add(sum[0], sum[1]);
591 template<> EIGEN_STRONG_INLINE
float predux_mul<Packet4f>(
const Packet4f& a)
594 prod = pmul(a, (Packet4f)vec_sld(a, a, 8));
595 return pfirst(pmul(prod, (Packet4f)vec_sld(prod, prod, 4)));
598 template<> EIGEN_STRONG_INLINE
int predux_mul<Packet4i>(
const Packet4i& a)
600 EIGEN_ALIGN16
int aux[4];
602 return aux[0] * aux[1] * aux[2] * aux[3];
606 template<> EIGEN_STRONG_INLINE
float predux_min<Packet4f>(
const Packet4f& a)
609 b = vec_min(a, vec_sld(a, a, 8));
610 res = vec_min(b, vec_sld(b, b, 4));
614 template<> EIGEN_STRONG_INLINE
int predux_min<Packet4i>(
const Packet4i& a)
617 b = vec_min(a, vec_sld(a, a, 8));
618 res = vec_min(b, vec_sld(b, b, 4));
623 template<> EIGEN_STRONG_INLINE
float predux_max<Packet4f>(
const Packet4f& a)
626 b = vec_max(a, vec_sld(a, a, 8));
627 res = vec_max(b, vec_sld(b, b, 4));
631 template<> EIGEN_STRONG_INLINE
int predux_max<Packet4i>(
const Packet4i& a)
634 b = vec_max(a, vec_sld(a, a, 8));
635 res = vec_max(b, vec_sld(b, b, 4));
640 struct palign_impl<Offset,Packet4f>
642 static EIGEN_STRONG_INLINE
void run(Packet4f& first,
const Packet4f& second)
645 switch (Offset % 4) {
647 first = vec_sld(first, second, 4);
break;
649 first = vec_sld(first, second, 8);
break;
651 first = vec_sld(first, second, 12);
break;
654 switch (Offset % 4) {
656 first = vec_sld(second, first, 12);
break;
658 first = vec_sld(second, first, 8);
break;
660 first = vec_sld(second, first, 4);
break;
667 struct palign_impl<Offset,Packet4i>
669 static EIGEN_STRONG_INLINE
void run(Packet4i& first,
const Packet4i& second)
672 switch (Offset % 4) {
674 first = vec_sld(first, second, 4);
break;
676 first = vec_sld(first, second, 8);
break;
678 first = vec_sld(first, second, 12);
break;
681 switch (Offset % 4) {
683 first = vec_sld(second, first, 12);
break;
685 first = vec_sld(second, first, 8);
break;
687 first = vec_sld(second, first, 4);
break;
693 EIGEN_DEVICE_FUNC
inline void 694 ptranspose(PacketBlock<Packet4f,4>& kernel) {
695 Packet4f t0, t1, t2, t3;
696 t0 = vec_mergeh(kernel.packet[0], kernel.packet[2]);
697 t1 = vec_mergel(kernel.packet[0], kernel.packet[2]);
698 t2 = vec_mergeh(kernel.packet[1], kernel.packet[3]);
699 t3 = vec_mergel(kernel.packet[1], kernel.packet[3]);
700 kernel.packet[0] = vec_mergeh(t0, t2);
701 kernel.packet[1] = vec_mergel(t0, t2);
702 kernel.packet[2] = vec_mergeh(t1, t3);
703 kernel.packet[3] = vec_mergel(t1, t3);
706 EIGEN_DEVICE_FUNC
inline void 707 ptranspose(PacketBlock<Packet4i,4>& kernel) {
708 Packet4i t0, t1, t2, t3;
709 t0 = vec_mergeh(kernel.packet[0], kernel.packet[2]);
710 t1 = vec_mergel(kernel.packet[0], kernel.packet[2]);
711 t2 = vec_mergeh(kernel.packet[1], kernel.packet[3]);
712 t3 = vec_mergel(kernel.packet[1], kernel.packet[3]);
713 kernel.packet[0] = vec_mergeh(t0, t2);
714 kernel.packet[1] = vec_mergel(t0, t2);
715 kernel.packet[2] = vec_mergeh(t1, t3);
716 kernel.packet[3] = vec_mergel(t1, t3);
722 typedef __vector
double Packet2d;
723 typedef __vector
unsigned long long Packet2ul;
724 typedef __vector
long long Packet2l;
726 static Packet2l p2l_ZERO = (Packet2l) p4i_ZERO;
727 static Packet2d p2d_ONE = { 1.0, 1.0 };
728 static Packet2d p2d_ZERO = (Packet2d) p4f_ZERO;
729 static Packet2d p2d_ZERO_ = { -0.0, -0.0 };
732 static Packet2d p2d_COUNTDOWN = (Packet2d) vec_sld((Packet16uc) p2d_ZERO, (Packet16uc) p2d_ONE, 8);
734 static Packet2d p2d_COUNTDOWN = (Packet2d) vec_sld((Packet16uc) p2d_ONE, (Packet16uc) p2d_ZERO, 8);
737 static EIGEN_STRONG_INLINE Packet2d vec_splat_dbl(Packet2d& a,
int index)
741 return (Packet2d) vec_perm(a, a, p16uc_PSET64_HI);
743 return (Packet2d) vec_perm(a, a, p16uc_PSET64_LO);
748 template<>
struct packet_traits<double> : default_packet_traits
750 typedef Packet2d type;
751 typedef Packet2d half;
764 template<>
struct unpacket_traits<Packet2d> {
typedef double type;
enum {size=2, alignment=
Aligned16};
typedef Packet2d half; };
767 inline std::ostream & operator <<(std::ostream & s,
const Packet2d & v)
774 s << vt.n[0] <<
", " << vt.n[1];
779 template<> EIGEN_STRONG_INLINE Packet2d pload<Packet2d>(
const double* from) { EIGEN_DEBUG_ALIGNED_LOAD
return (Packet2d) vec_ld(0, (
const float *) from); }
781 template<> EIGEN_STRONG_INLINE
void pstore<double>(
double* to,
const Packet2d& from) { EIGEN_DEBUG_ALIGNED_STORE vec_st((Packet4f)from, 0, (
float *)to); }
783 template<> EIGEN_STRONG_INLINE Packet2d pset1<Packet2d>(
const double& from) {
784 double EIGEN_ALIGN16 af[2];
786 Packet2d vc = pload<Packet2d>(af);
787 vc = vec_splat_dbl(vc, 0);
790 template<> EIGEN_STRONG_INLINE
void 791 pbroadcast4<Packet2d>(
const double *a,
792 Packet2d& a0, Packet2d& a1, Packet2d& a2, Packet2d& a3)
794 a1 = pload<Packet2d>(a);
795 a0 = vec_splat_dbl(a1, 0);
796 a1 = vec_splat_dbl(a1, 1);
797 a3 = pload<Packet2d>(a+2);
798 a2 = vec_splat_dbl(a3, 0);
799 a3 = vec_splat_dbl(a3, 1);
801 template<> EIGEN_DEVICE_FUNC
inline Packet2d pgather<double, Packet2d>(
const double* from, Index stride)
803 double EIGEN_ALIGN16 af[2];
804 af[0] = from[0*stride];
805 af[1] = from[1*stride];
806 return pload<Packet2d>(af);
808 template<> EIGEN_DEVICE_FUNC
inline void pscatter<double, Packet2d>(
double* to,
const Packet2d& from, Index stride)
810 double EIGEN_ALIGN16 af[2];
811 pstore<double>(af, from);
812 to[0*stride] = af[0];
813 to[1*stride] = af[1];
815 template<> EIGEN_STRONG_INLINE Packet2d plset<Packet2d>(
const double& a) {
return vec_add(pset1<Packet2d>(a), p2d_COUNTDOWN); }
817 template<> EIGEN_STRONG_INLINE Packet2d padd<Packet2d>(
const Packet2d& a,
const Packet2d& b) {
return vec_add(a,b); }
819 template<> EIGEN_STRONG_INLINE Packet2d psub<Packet2d>(
const Packet2d& a,
const Packet2d& b) {
return vec_sub(a,b); }
821 template<> EIGEN_STRONG_INLINE Packet2d pnegate(
const Packet2d& a) {
return psub<Packet2d>(p2d_ZERO, a); }
823 template<> EIGEN_STRONG_INLINE Packet2d pconj(
const Packet2d& a) {
return a; }
825 template<> EIGEN_STRONG_INLINE Packet2d pmul<Packet2d>(
const Packet2d& a,
const Packet2d& b) {
return vec_madd(a,b,p2d_ZERO); }
826 template<> EIGEN_STRONG_INLINE Packet2d pdiv<Packet2d>(
const Packet2d& a,
const Packet2d& b) {
return vec_div(a,b); }
829 template<> EIGEN_STRONG_INLINE Packet2d pmadd(
const Packet2d& a,
const Packet2d& b,
const Packet2d& c) {
return vec_madd(a, b, c); }
831 template<> EIGEN_STRONG_INLINE Packet2d pmin<Packet2d>(
const Packet2d& a,
const Packet2d& b) {
return vec_min(a, b); }
833 template<> EIGEN_STRONG_INLINE Packet2d pmax<Packet2d>(
const Packet2d& a,
const Packet2d& b) {
return vec_max(a, b); }
835 template<> EIGEN_STRONG_INLINE Packet2d pand<Packet2d>(
const Packet2d& a,
const Packet2d& b) {
return vec_and(a, b); }
837 template<> EIGEN_STRONG_INLINE Packet2d por<Packet2d>(
const Packet2d& a,
const Packet2d& b) {
return vec_or(a, b); }
839 template<> EIGEN_STRONG_INLINE Packet2d pxor<Packet2d>(
const Packet2d& a,
const Packet2d& b) {
return vec_xor(a, b); }
841 template<> EIGEN_STRONG_INLINE Packet2d pandnot<Packet2d>(
const Packet2d& a,
const Packet2d& b) {
return vec_and(a, vec_nor(b, b)); }
843 template<> EIGEN_STRONG_INLINE Packet2d ploadu<Packet2d>(
const double* from)
845 EIGEN_DEBUG_ALIGNED_LOAD
846 return (Packet2d) vec_vsx_ld((
long)from & 15, (
const float*) _EIGEN_ALIGNED_PTR(from));
848 template<> EIGEN_STRONG_INLINE Packet2d ploaddup<Packet2d>(
const double* from)
851 if((ptrdiff_t(from) % 16) == 0) p = pload<Packet2d>(from);
852 else p = ploadu<Packet2d>(from);
853 return vec_perm(p, p, p16uc_PSET64_HI);
856 template<> EIGEN_STRONG_INLINE
void pstoreu<double>(
double* to,
const Packet2d& from)
858 EIGEN_DEBUG_ALIGNED_STORE
859 vec_vsx_st((Packet4f)from, (
long)to & 15, (
float*) _EIGEN_ALIGNED_PTR(to));
862 template<> EIGEN_STRONG_INLINE
void prefetch<double>(
const double* addr) { vec_dstt((
const float *) addr, DST_CTRL(2,2,32), DST_CHAN); }
864 template<> EIGEN_STRONG_INLINE
double pfirst<Packet2d>(
const Packet2d& a) {
double EIGEN_ALIGN16 x[2]; pstore(x, a);
return x[0]; }
866 template<> EIGEN_STRONG_INLINE Packet2d preverse(
const Packet2d& a) {
return (Packet2d)vec_perm((Packet16uc)a,(Packet16uc)a, p16uc_REVERSE64); }
868 template<> EIGEN_STRONG_INLINE Packet2d pabs(
const Packet2d& a) {
return vec_abs(a); }
870 template<> EIGEN_STRONG_INLINE
double predux<Packet2d>(
const Packet2d& a)
873 b = (Packet2d) vec_sld((Packet4ui) a, (Packet4ui)a, 8);
878 template<> EIGEN_STRONG_INLINE Packet2d preduxp<Packet2d>(
const Packet2d* vecs)
881 v[0] = vec_add(vecs[0], (Packet2d) vec_sld((Packet4ui) vecs[0], (Packet4ui) vecs[0], 8));
882 v[1] = vec_add(vecs[1], (Packet2d) vec_sld((Packet4ui) vecs[1], (Packet4ui) vecs[1], 8));
885 sum = (Packet2d) vec_sld((Packet4ui) v[0], (Packet4ui) v[1], 8);
887 sum = (Packet2d) vec_sld((Packet4ui) v[1], (Packet4ui) v[0], 8);
894 template<> EIGEN_STRONG_INLINE
double predux_mul<Packet2d>(
const Packet2d& a)
896 return pfirst(pmul(a, (Packet2d)vec_sld((Packet4ui) a, (Packet4ui) a, 8)));
900 template<> EIGEN_STRONG_INLINE
double predux_min<Packet2d>(
const Packet2d& a)
902 return pfirst(vec_min(a, (Packet2d) vec_sld((Packet4ui) a, (Packet4ui) a, 8)));
906 template<> EIGEN_STRONG_INLINE
double predux_max<Packet2d>(
const Packet2d& a)
908 return pfirst(vec_max(a, (Packet2d) vec_sld((Packet4ui) a, (Packet4ui) a, 8)));
912 struct palign_impl<Offset,Packet2d>
914 static EIGEN_STRONG_INLINE
void run(Packet2d& first,
const Packet2d& second)
918 first = (Packet2d) vec_sld((Packet4ui) first, (Packet4ui) second, 8);
920 first = (Packet2d) vec_sld((Packet4ui) second, (Packet4ui) first, 8);
925 EIGEN_DEVICE_FUNC
inline void 926 ptranspose(PacketBlock<Packet2d,2>& kernel) {
928 t0 = vec_perm(kernel.packet[0], kernel.packet[1], p16uc_TRANSPOSE64_HI);
929 t1 = vec_perm(kernel.packet[0], kernel.packet[1], p16uc_TRANSPOSE64_LO);
930 kernel.packet[0] = t0;
931 kernel.packet[1] = t1;
939 #endif // EIGEN_PACKET_MATH_ALTIVEC_H Definition: Constants.h:230
Definition: Eigen_Colamd.h:54