1 // This file is part of Eigen, a lightweight C++ template library 2 // for linear algebra. 3 // 4 // Copyright (C) 2008-2009 Gael Guennebaud <gael.guennebaud (at) inria.fr> 5 // Copyright (C) 2006-2008 Benoit Jacob <jacob.benoit.1 (at) gmail.com> 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 #include "main.h" 12 13 // using namespace Eigen; 14 15 namespace Eigen { 16 namespace internal { 17 template<typename T> T negate(const T& x) { return -x; } 18 } 19 } 20 21 template<typename Scalar> bool isApproxAbs(const Scalar& a, const Scalar& b, const typename NumTraits<Scalar>::Real& refvalue) 22 { 23 return internal::isMuchSmallerThan(a-b, refvalue); 24 } 25 26 template<typename Scalar> bool areApproxAbs(const Scalar* a, const Scalar* b, int size, const typename NumTraits<Scalar>::Real& refvalue) 27 { 28 for (int i=0; i<size; ++i) 29 { 30 if (!isApproxAbs(a[i],b[i],refvalue)) 31 { 32 std::cout << "[" << Map<const Matrix<Scalar,1,Dynamic> >(a,size) << "]" << " != " << Map<const Matrix<Scalar,1,Dynamic> >(b,size) << "\n"; 33 return false; 34 } 35 } 36 return true; 37 } 38 39 template<typename Scalar> bool areApprox(const Scalar* a, const Scalar* b, int size) 40 { 41 for (int i=0; i<size; ++i) 42 { 43 if (a[i]!=b[i] && !internal::isApprox(a[i],b[i])) 44 { 45 std::cout << "[" << Map<const Matrix<Scalar,1,Dynamic> >(a,size) << "]" << " != " << Map<const Matrix<Scalar,1,Dynamic> >(b,size) << "\n"; 46 return false; 47 } 48 } 49 return true; 50 } 51 52 53 #define CHECK_CWISE2(REFOP, POP) { \ 54 for (int i=0; i<PacketSize; ++i) \ 55 ref[i] = REFOP(data1[i], data1[i+PacketSize]); \ 56 internal::pstore(data2, POP(internal::pload<Packet>(data1), internal::pload<Packet>(data1+PacketSize))); \ 57 VERIFY(areApprox(ref, data2, PacketSize) && #POP); \ 58 } 59 60 #define CHECK_CWISE1(REFOP, POP) { \ 61 for (int i=0; i<PacketSize; ++i) \ 62 ref[i] = REFOP(data1[i]); \ 63 internal::pstore(data2, POP(internal::pload<Packet>(data1))); \ 64 VERIFY(areApprox(ref, data2, PacketSize) && #POP); \ 65 } 66 67 template<bool Cond,typename Packet> 68 struct packet_helper 69 { 70 template<typename T> 71 inline Packet load(const T* from) const { return internal::pload<Packet>(from); } 72 73 template<typename T> 74 inline void store(T* to, const Packet& x) const { internal::pstore(to,x); } 75 }; 76 77 template<typename Packet> 78 struct packet_helper<false,Packet> 79 { 80 template<typename T> 81 inline T load(const T* from) const { return *from; } 82 83 template<typename T> 84 inline void store(T* to, const T& x) const { *to = x; } 85 }; 86 87 #define CHECK_CWISE1_IF(COND, REFOP, POP) if(COND) { \ 88 packet_helper<COND,Packet> h; \ 89 for (int i=0; i<PacketSize; ++i) \ 90 ref[i] = REFOP(data1[i]); \ 91 h.store(data2, POP(h.load(data1))); \ 92 VERIFY(areApprox(ref, data2, PacketSize) && #POP); \ 93 } 94 95 #define REF_ADD(a,b) ((a)+(b)) 96 #define REF_SUB(a,b) ((a)-(b)) 97 #define REF_MUL(a,b) ((a)*(b)) 98 #define REF_DIV(a,b) ((a)/(b)) 99 100 template<typename Scalar> void packetmath() 101 { 102 using std::abs; 103 typedef typename internal::packet_traits<Scalar>::type Packet; 104 const int PacketSize = internal::packet_traits<Scalar>::size; 105 typedef typename NumTraits<Scalar>::Real RealScalar; 106 107 const int size = PacketSize*4; 108 EIGEN_ALIGN16 Scalar data1[internal::packet_traits<Scalar>::size*4]; 109 EIGEN_ALIGN16 Scalar data2[internal::packet_traits<Scalar>::size*4]; 110 EIGEN_ALIGN16 Packet packets[PacketSize*2]; 111 EIGEN_ALIGN16 Scalar ref[internal::packet_traits<Scalar>::size*4]; 112 RealScalar refvalue = 0; 113 for (int i=0; i<size; ++i) 114 { 115 data1[i] = internal::random<Scalar>()/RealScalar(PacketSize); 116 data2[i] = internal::random<Scalar>()/RealScalar(PacketSize); 117 refvalue = (std::max)(refvalue,abs(data1[i])); 118 } 119 120 internal::pstore(data2, internal::pload<Packet>(data1)); 121 VERIFY(areApprox(data1, data2, PacketSize) && "aligned load/store"); 122 123 for (int offset=0; offset<PacketSize; ++offset) 124 { 125 internal::pstore(data2, internal::ploadu<Packet>(data1+offset)); 126 VERIFY(areApprox(data1+offset, data2, PacketSize) && "internal::ploadu"); 127 } 128 129 for (int offset=0; offset<PacketSize; ++offset) 130 { 131 internal::pstoreu(data2+offset, internal::pload<Packet>(data1)); 132 VERIFY(areApprox(data1, data2+offset, PacketSize) && "internal::pstoreu"); 133 } 134 135 for (int offset=0; offset<PacketSize; ++offset) 136 { 137 packets[0] = internal::pload<Packet>(data1); 138 packets[1] = internal::pload<Packet>(data1+PacketSize); 139 if (offset==0) internal::palign<0>(packets[0], packets[1]); 140 else if (offset==1) internal::palign<1>(packets[0], packets[1]); 141 else if (offset==2) internal::palign<2>(packets[0], packets[1]); 142 else if (offset==3) internal::palign<3>(packets[0], packets[1]); 143 internal::pstore(data2, packets[0]); 144 145 for (int i=0; i<PacketSize; ++i) 146 ref[i] = data1[i+offset]; 147 148 VERIFY(areApprox(ref, data2, PacketSize) && "internal::palign"); 149 } 150 151 CHECK_CWISE2(REF_ADD, internal::padd); 152 CHECK_CWISE2(REF_SUB, internal::psub); 153 CHECK_CWISE2(REF_MUL, internal::pmul); 154 #ifndef EIGEN_VECTORIZE_ALTIVEC 155 if (!internal::is_same<Scalar,int>::value) 156 CHECK_CWISE2(REF_DIV, internal::pdiv); 157 #endif 158 CHECK_CWISE1(internal::negate, internal::pnegate); 159 CHECK_CWISE1(numext::conj, internal::pconj); 160 161 for(int offset=0;offset<3;++offset) 162 { 163 for (int i=0; i<PacketSize; ++i) 164 ref[i] = data1[offset]; 165 internal::pstore(data2, internal::pset1<Packet>(data1[offset])); 166 VERIFY(areApprox(ref, data2, PacketSize) && "internal::pset1"); 167 } 168 169 VERIFY(internal::isApprox(data1[0], internal::pfirst(internal::pload<Packet>(data1))) && "internal::pfirst"); 170 171 if(PacketSize>1) 172 { 173 for(int offset=0;offset<4;++offset) 174 { 175 for(int i=0;i<PacketSize/2;++i) 176 ref[2*i+0] = ref[2*i+1] = data1[offset+i]; 177 internal::pstore(data2,internal::ploaddup<Packet>(data1+offset)); 178 VERIFY(areApprox(ref, data2, PacketSize) && "ploaddup"); 179 } 180 } 181 182 ref[0] = 0; 183 for (int i=0; i<PacketSize; ++i) 184 ref[0] += data1[i]; 185 VERIFY(isApproxAbs(ref[0], internal::predux(internal::pload<Packet>(data1)), refvalue) && "internal::predux"); 186 187 ref[0] = 1; 188 for (int i=0; i<PacketSize; ++i) 189 ref[0] *= data1[i]; 190 VERIFY(internal::isApprox(ref[0], internal::predux_mul(internal::pload<Packet>(data1))) && "internal::predux_mul"); 191 192 for (int j=0; j<PacketSize; ++j) 193 { 194 ref[j] = 0; 195 for (int i=0; i<PacketSize; ++i) 196 ref[j] += data1[i+j*PacketSize]; 197 packets[j] = internal::pload<Packet>(data1+j*PacketSize); 198 } 199 internal::pstore(data2, internal::preduxp(packets)); 200 VERIFY(areApproxAbs(ref, data2, PacketSize, refvalue) && "internal::preduxp"); 201 202 for (int i=0; i<PacketSize; ++i) 203 ref[i] = data1[PacketSize-i-1]; 204 internal::pstore(data2, internal::preverse(internal::pload<Packet>(data1))); 205 VERIFY(areApprox(ref, data2, PacketSize) && "internal::preverse"); 206 } 207 208 template<typename Scalar> void packetmath_real() 209 { 210 using std::abs; 211 typedef typename internal::packet_traits<Scalar>::type Packet; 212 const int PacketSize = internal::packet_traits<Scalar>::size; 213 214 const int size = PacketSize*4; 215 EIGEN_ALIGN16 Scalar data1[internal::packet_traits<Scalar>::size*4]; 216 EIGEN_ALIGN16 Scalar data2[internal::packet_traits<Scalar>::size*4]; 217 EIGEN_ALIGN16 Scalar ref[internal::packet_traits<Scalar>::size*4]; 218 219 for (int i=0; i<size; ++i) 220 { 221 data1[i] = internal::random<Scalar>(-1,1) * std::pow(Scalar(10), internal::random<Scalar>(-3,3)); 222 data2[i] = internal::random<Scalar>(-1,1) * std::pow(Scalar(10), internal::random<Scalar>(-3,3)); 223 } 224 CHECK_CWISE1_IF(internal::packet_traits<Scalar>::HasSin, std::sin, internal::psin); 225 CHECK_CWISE1_IF(internal::packet_traits<Scalar>::HasCos, std::cos, internal::pcos); 226 CHECK_CWISE1_IF(internal::packet_traits<Scalar>::HasTan, std::tan, internal::ptan); 227 228 for (int i=0; i<size; ++i) 229 { 230 data1[i] = internal::random<Scalar>(-1,1); 231 data2[i] = internal::random<Scalar>(-1,1); 232 } 233 CHECK_CWISE1_IF(internal::packet_traits<Scalar>::HasASin, std::asin, internal::pasin); 234 CHECK_CWISE1_IF(internal::packet_traits<Scalar>::HasACos, std::acos, internal::pacos); 235 236 for (int i=0; i<size; ++i) 237 { 238 data1[i] = internal::random<Scalar>(-87,88); 239 data2[i] = internal::random<Scalar>(-87,88); 240 } 241 CHECK_CWISE1_IF(internal::packet_traits<Scalar>::HasExp, std::exp, internal::pexp); 242 { 243 data1[0] = std::numeric_limits<Scalar>::quiet_NaN(); 244 packet_helper<internal::packet_traits<Scalar>::HasExp,Packet> h; 245 h.store(data2, internal::pexp(h.load(data1))); 246 VERIFY(isNaN(data2[0])); 247 } 248 249 for (int i=0; i<size; ++i) 250 { 251 data1[i] = internal::random<Scalar>(0,1) * std::pow(Scalar(10), internal::random<Scalar>(-6,6)); 252 data2[i] = internal::random<Scalar>(0,1) * std::pow(Scalar(10), internal::random<Scalar>(-6,6)); 253 } 254 if(internal::random<float>(0,1)<0.1) 255 data1[internal::random<int>(0, PacketSize)] = 0; 256 CHECK_CWISE1_IF(internal::packet_traits<Scalar>::HasSqrt, std::sqrt, internal::psqrt); 257 CHECK_CWISE1_IF(internal::packet_traits<Scalar>::HasLog, std::log, internal::plog); 258 { 259 data1[0] = std::numeric_limits<Scalar>::quiet_NaN(); 260 packet_helper<internal::packet_traits<Scalar>::HasLog,Packet> h; 261 h.store(data2, internal::plog(h.load(data1))); 262 VERIFY(isNaN(data2[0])); 263 data1[0] = -1.0f; 264 h.store(data2, internal::plog(h.load(data1))); 265 VERIFY(isNaN(data2[0])); 266 #if !EIGEN_FAST_MATH 267 h.store(data2, internal::psqrt(h.load(data1))); 268 VERIFY(isNaN(data2[0])); 269 VERIFY(isNaN(data2[1])); 270 #endif 271 } 272 } 273 274 template<typename Scalar> void packetmath_notcomplex() 275 { 276 using std::abs; 277 typedef typename internal::packet_traits<Scalar>::type Packet; 278 const int PacketSize = internal::packet_traits<Scalar>::size; 279 280 EIGEN_ALIGN16 Scalar data1[internal::packet_traits<Scalar>::size*4]; 281 EIGEN_ALIGN16 Scalar data2[internal::packet_traits<Scalar>::size*4]; 282 EIGEN_ALIGN16 Scalar ref[internal::packet_traits<Scalar>::size*4]; 283 284 Array<Scalar,Dynamic,1>::Map(data1, internal::packet_traits<Scalar>::size*4).setRandom(); 285 286 ref[0] = data1[0]; 287 for (int i=0; i<PacketSize; ++i) 288 ref[0] = (std::min)(ref[0],data1[i]); 289 VERIFY(internal::isApprox(ref[0], internal::predux_min(internal::pload<Packet>(data1))) && "internal::predux_min"); 290 291 CHECK_CWISE2((std::min), internal::pmin); 292 CHECK_CWISE2((std::max), internal::pmax); 293 CHECK_CWISE1(abs, internal::pabs); 294 295 ref[0] = data1[0]; 296 for (int i=0; i<PacketSize; ++i) 297 ref[0] = (std::max)(ref[0],data1[i]); 298 VERIFY(internal::isApprox(ref[0], internal::predux_max(internal::pload<Packet>(data1))) && "internal::predux_max"); 299 300 for (int i=0; i<PacketSize; ++i) 301 ref[i] = data1[0]+Scalar(i); 302 internal::pstore(data2, internal::plset(data1[0])); 303 VERIFY(areApprox(ref, data2, PacketSize) && "internal::plset"); 304 } 305 306 template<typename Scalar,bool ConjLhs,bool ConjRhs> void test_conj_helper(Scalar* data1, Scalar* data2, Scalar* ref, Scalar* pval) 307 { 308 typedef typename internal::packet_traits<Scalar>::type Packet; 309 const int PacketSize = internal::packet_traits<Scalar>::size; 310 311 internal::conj_if<ConjLhs> cj0; 312 internal::conj_if<ConjRhs> cj1; 313 internal::conj_helper<Scalar,Scalar,ConjLhs,ConjRhs> cj; 314 internal::conj_helper<Packet,Packet,ConjLhs,ConjRhs> pcj; 315 316 for(int i=0;i<PacketSize;++i) 317 { 318 ref[i] = cj0(data1[i]) * cj1(data2[i]); 319 VERIFY(internal::isApprox(ref[i], cj.pmul(data1[i],data2[i])) && "conj_helper pmul"); 320 } 321 internal::pstore(pval,pcj.pmul(internal::pload<Packet>(data1),internal::pload<Packet>(data2))); 322 VERIFY(areApprox(ref, pval, PacketSize) && "conj_helper pmul"); 323 324 for(int i=0;i<PacketSize;++i) 325 { 326 Scalar tmp = ref[i]; 327 ref[i] += cj0(data1[i]) * cj1(data2[i]); 328 VERIFY(internal::isApprox(ref[i], cj.pmadd(data1[i],data2[i],tmp)) && "conj_helper pmadd"); 329 } 330 internal::pstore(pval,pcj.pmadd(internal::pload<Packet>(data1),internal::pload<Packet>(data2),internal::pload<Packet>(pval))); 331 VERIFY(areApprox(ref, pval, PacketSize) && "conj_helper pmadd"); 332 } 333 334 template<typename Scalar> void packetmath_complex() 335 { 336 typedef typename internal::packet_traits<Scalar>::type Packet; 337 const int PacketSize = internal::packet_traits<Scalar>::size; 338 339 const int size = PacketSize*4; 340 EIGEN_ALIGN16 Scalar data1[PacketSize*4]; 341 EIGEN_ALIGN16 Scalar data2[PacketSize*4]; 342 EIGEN_ALIGN16 Scalar ref[PacketSize*4]; 343 EIGEN_ALIGN16 Scalar pval[PacketSize*4]; 344 345 for (int i=0; i<size; ++i) 346 { 347 data1[i] = internal::random<Scalar>() * Scalar(1e2); 348 data2[i] = internal::random<Scalar>() * Scalar(1e2); 349 } 350 351 test_conj_helper<Scalar,false,false> (data1,data2,ref,pval); 352 test_conj_helper<Scalar,false,true> (data1,data2,ref,pval); 353 test_conj_helper<Scalar,true,false> (data1,data2,ref,pval); 354 test_conj_helper<Scalar,true,true> (data1,data2,ref,pval); 355 356 { 357 for(int i=0;i<PacketSize;++i) 358 ref[i] = Scalar(std::imag(data1[i]),std::real(data1[i])); 359 internal::pstore(pval,internal::pcplxflip(internal::pload<Packet>(data1))); 360 VERIFY(areApprox(ref, pval, PacketSize) && "pcplxflip"); 361 } 362 363 364 } 365 366 void test_packetmath() 367 { 368 for(int i = 0; i < g_repeat; i++) { 369 CALL_SUBTEST_1( packetmath<float>() ); 370 CALL_SUBTEST_2( packetmath<double>() ); 371 CALL_SUBTEST_3( packetmath<int>() ); 372 CALL_SUBTEST_1( packetmath<std::complex<float> >() ); 373 CALL_SUBTEST_2( packetmath<std::complex<double> >() ); 374 375 CALL_SUBTEST_1( packetmath_notcomplex<float>() ); 376 CALL_SUBTEST_2( packetmath_notcomplex<double>() ); 377 CALL_SUBTEST_3( packetmath_notcomplex<int>() ); 378 379 CALL_SUBTEST_1( packetmath_real<float>() ); 380 CALL_SUBTEST_2( packetmath_real<double>() ); 381 382 CALL_SUBTEST_1( packetmath_complex<std::complex<float> >() ); 383 CALL_SUBTEST_2( packetmath_complex<std::complex<double> >() ); 384 } 385 } 386
