ref: 4f9a9087f16b92662389be3dc0589629359ac8a4
dir: /libfaad/fftw/ftwi_16.c/
/* * Copyright (c) 1997-1999 Massachusetts Institute of Technology * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ /* This file was automatically generated --- DO NOT EDIT */ /* Generated on Sun Nov 7 20:45:01 EST 1999 */ #include <fftw-int.h> #include <fftw.h> /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -twiddleinv 16 */ /* * This function contains 174 FP additions, 84 FP multiplications, * (or, 136 additions, 46 multiplications, 38 fused multiply/add), * 50 stack variables, and 64 memory accesses */ static const fftw_real K382683432 = FFTW_KONST(+0.382683432365089771728459984030398866761344562); static const fftw_real K923879532 = FFTW_KONST(+0.923879532511286756128183189396788286822416626); static const fftw_real K707106781 = FFTW_KONST(+0.707106781186547524400844362104849039284835938); /* * Generator Id's : * $Id: ftwi_16.c,v 1.1 2002/04/07 21:26:05 menno Exp $ * $Id: ftwi_16.c,v 1.1 2002/04/07 21:26:05 menno Exp $ * $Id: ftwi_16.c,v 1.1 2002/04/07 21:26:05 menno Exp $ */ void fftwi_twiddle_16(fftw_complex *A, const fftw_complex *W, int iostride, int m, int dist) { int i; fftw_complex *inout; inout = A; for (i = m; i > 0; i = i - 1, inout = inout + dist, W = W + 15) { fftw_real tmp7; fftw_real tmp91; fftw_real tmp180; fftw_real tmp194; fftw_real tmp18; fftw_real tmp193; fftw_real tmp94; fftw_real tmp177; fftw_real tmp77; fftw_real tmp88; fftw_real tmp161; fftw_real tmp117; fftw_real tmp141; fftw_real tmp162; fftw_real tmp163; fftw_real tmp164; fftw_real tmp112; fftw_real tmp140; fftw_real tmp30; fftw_real tmp153; fftw_real tmp100; fftw_real tmp137; fftw_real tmp41; fftw_real tmp152; fftw_real tmp105; fftw_real tmp136; fftw_real tmp54; fftw_real tmp65; fftw_real tmp156; fftw_real tmp128; fftw_real tmp144; fftw_real tmp157; fftw_real tmp158; fftw_real tmp159; fftw_real tmp123; fftw_real tmp143; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp1; fftw_real tmp179; fftw_real tmp6; fftw_real tmp178; ASSERT_ALIGNED_DOUBLE; tmp1 = c_re(inout[0]); tmp179 = c_im(inout[0]); { fftw_real tmp3; fftw_real tmp5; fftw_real tmp2; fftw_real tmp4; ASSERT_ALIGNED_DOUBLE; tmp3 = c_re(inout[8 * iostride]); tmp5 = c_im(inout[8 * iostride]); tmp2 = c_re(W[7]); tmp4 = c_im(W[7]); tmp6 = (tmp2 * tmp3) + (tmp4 * tmp5); tmp178 = (tmp2 * tmp5) - (tmp4 * tmp3); } tmp7 = tmp1 + tmp6; tmp91 = tmp1 - tmp6; tmp180 = tmp178 + tmp179; tmp194 = tmp179 - tmp178; } { fftw_real tmp12; fftw_real tmp92; fftw_real tmp17; fftw_real tmp93; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp9; fftw_real tmp11; fftw_real tmp8; fftw_real tmp10; ASSERT_ALIGNED_DOUBLE; tmp9 = c_re(inout[4 * iostride]); tmp11 = c_im(inout[4 * iostride]); tmp8 = c_re(W[3]); tmp10 = c_im(W[3]); tmp12 = (tmp8 * tmp9) + (tmp10 * tmp11); tmp92 = (tmp8 * tmp11) - (tmp10 * tmp9); } { fftw_real tmp14; fftw_real tmp16; fftw_real tmp13; fftw_real tmp15; ASSERT_ALIGNED_DOUBLE; tmp14 = c_re(inout[12 * iostride]); tmp16 = c_im(inout[12 * iostride]); tmp13 = c_re(W[11]); tmp15 = c_im(W[11]); tmp17 = (tmp13 * tmp14) + (tmp15 * tmp16); tmp93 = (tmp13 * tmp16) - (tmp15 * tmp14); } tmp18 = tmp12 + tmp17; tmp193 = tmp12 - tmp17; tmp94 = tmp92 - tmp93; tmp177 = tmp92 + tmp93; } { fftw_real tmp71; fftw_real tmp108; fftw_real tmp87; fftw_real tmp115; fftw_real tmp76; fftw_real tmp109; fftw_real tmp82; fftw_real tmp114; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp68; fftw_real tmp70; fftw_real tmp67; fftw_real tmp69; ASSERT_ALIGNED_DOUBLE; tmp68 = c_re(inout[15 * iostride]); tmp70 = c_im(inout[15 * iostride]); tmp67 = c_re(W[14]); tmp69 = c_im(W[14]); tmp71 = (tmp67 * tmp68) + (tmp69 * tmp70); tmp108 = (tmp67 * tmp70) - (tmp69 * tmp68); } { fftw_real tmp84; fftw_real tmp86; fftw_real tmp83; fftw_real tmp85; ASSERT_ALIGNED_DOUBLE; tmp84 = c_re(inout[11 * iostride]); tmp86 = c_im(inout[11 * iostride]); tmp83 = c_re(W[10]); tmp85 = c_im(W[10]); tmp87 = (tmp83 * tmp84) + (tmp85 * tmp86); tmp115 = (tmp83 * tmp86) - (tmp85 * tmp84); } { fftw_real tmp73; fftw_real tmp75; fftw_real tmp72; fftw_real tmp74; ASSERT_ALIGNED_DOUBLE; tmp73 = c_re(inout[7 * iostride]); tmp75 = c_im(inout[7 * iostride]); tmp72 = c_re(W[6]); tmp74 = c_im(W[6]); tmp76 = (tmp72 * tmp73) + (tmp74 * tmp75); tmp109 = (tmp72 * tmp75) - (tmp74 * tmp73); } { fftw_real tmp79; fftw_real tmp81; fftw_real tmp78; fftw_real tmp80; ASSERT_ALIGNED_DOUBLE; tmp79 = c_re(inout[3 * iostride]); tmp81 = c_im(inout[3 * iostride]); tmp78 = c_re(W[2]); tmp80 = c_im(W[2]); tmp82 = (tmp78 * tmp79) + (tmp80 * tmp81); tmp114 = (tmp78 * tmp81) - (tmp80 * tmp79); } { fftw_real tmp113; fftw_real tmp116; fftw_real tmp110; fftw_real tmp111; ASSERT_ALIGNED_DOUBLE; tmp77 = tmp71 + tmp76; tmp88 = tmp82 + tmp87; tmp161 = tmp77 - tmp88; tmp113 = tmp71 - tmp76; tmp116 = tmp114 - tmp115; tmp117 = tmp113 - tmp116; tmp141 = tmp113 + tmp116; tmp162 = tmp108 + tmp109; tmp163 = tmp114 + tmp115; tmp164 = tmp162 - tmp163; tmp110 = tmp108 - tmp109; tmp111 = tmp82 - tmp87; tmp112 = tmp110 + tmp111; tmp140 = tmp110 - tmp111; } } { fftw_real tmp24; fftw_real tmp97; fftw_real tmp29; fftw_real tmp98; fftw_real tmp96; fftw_real tmp99; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp21; fftw_real tmp23; fftw_real tmp20; fftw_real tmp22; ASSERT_ALIGNED_DOUBLE; tmp21 = c_re(inout[2 * iostride]); tmp23 = c_im(inout[2 * iostride]); tmp20 = c_re(W[1]); tmp22 = c_im(W[1]); tmp24 = (tmp20 * tmp21) + (tmp22 * tmp23); tmp97 = (tmp20 * tmp23) - (tmp22 * tmp21); } { fftw_real tmp26; fftw_real tmp28; fftw_real tmp25; fftw_real tmp27; ASSERT_ALIGNED_DOUBLE; tmp26 = c_re(inout[10 * iostride]); tmp28 = c_im(inout[10 * iostride]); tmp25 = c_re(W[9]); tmp27 = c_im(W[9]); tmp29 = (tmp25 * tmp26) + (tmp27 * tmp28); tmp98 = (tmp25 * tmp28) - (tmp27 * tmp26); } tmp30 = tmp24 + tmp29; tmp153 = tmp97 + tmp98; tmp96 = tmp24 - tmp29; tmp99 = tmp97 - tmp98; tmp100 = tmp96 - tmp99; tmp137 = tmp96 + tmp99; } { fftw_real tmp35; fftw_real tmp102; fftw_real tmp40; fftw_real tmp103; fftw_real tmp101; fftw_real tmp104; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp32; fftw_real tmp34; fftw_real tmp31; fftw_real tmp33; ASSERT_ALIGNED_DOUBLE; tmp32 = c_re(inout[14 * iostride]); tmp34 = c_im(inout[14 * iostride]); tmp31 = c_re(W[13]); tmp33 = c_im(W[13]); tmp35 = (tmp31 * tmp32) + (tmp33 * tmp34); tmp102 = (tmp31 * tmp34) - (tmp33 * tmp32); } { fftw_real tmp37; fftw_real tmp39; fftw_real tmp36; fftw_real tmp38; ASSERT_ALIGNED_DOUBLE; tmp37 = c_re(inout[6 * iostride]); tmp39 = c_im(inout[6 * iostride]); tmp36 = c_re(W[5]); tmp38 = c_im(W[5]); tmp40 = (tmp36 * tmp37) + (tmp38 * tmp39); tmp103 = (tmp36 * tmp39) - (tmp38 * tmp37); } tmp41 = tmp35 + tmp40; tmp152 = tmp102 + tmp103; tmp101 = tmp35 - tmp40; tmp104 = tmp102 - tmp103; tmp105 = tmp101 + tmp104; tmp136 = tmp104 - tmp101; } { fftw_real tmp48; fftw_real tmp119; fftw_real tmp64; fftw_real tmp126; fftw_real tmp53; fftw_real tmp120; fftw_real tmp59; fftw_real tmp125; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp45; fftw_real tmp47; fftw_real tmp44; fftw_real tmp46; ASSERT_ALIGNED_DOUBLE; tmp45 = c_re(inout[iostride]); tmp47 = c_im(inout[iostride]); tmp44 = c_re(W[0]); tmp46 = c_im(W[0]); tmp48 = (tmp44 * tmp45) + (tmp46 * tmp47); tmp119 = (tmp44 * tmp47) - (tmp46 * tmp45); } { fftw_real tmp61; fftw_real tmp63; fftw_real tmp60; fftw_real tmp62; ASSERT_ALIGNED_DOUBLE; tmp61 = c_re(inout[13 * iostride]); tmp63 = c_im(inout[13 * iostride]); tmp60 = c_re(W[12]); tmp62 = c_im(W[12]); tmp64 = (tmp60 * tmp61) + (tmp62 * tmp63); tmp126 = (tmp60 * tmp63) - (tmp62 * tmp61); } { fftw_real tmp50; fftw_real tmp52; fftw_real tmp49; fftw_real tmp51; ASSERT_ALIGNED_DOUBLE; tmp50 = c_re(inout[9 * iostride]); tmp52 = c_im(inout[9 * iostride]); tmp49 = c_re(W[8]); tmp51 = c_im(W[8]); tmp53 = (tmp49 * tmp50) + (tmp51 * tmp52); tmp120 = (tmp49 * tmp52) - (tmp51 * tmp50); } { fftw_real tmp56; fftw_real tmp58; fftw_real tmp55; fftw_real tmp57; ASSERT_ALIGNED_DOUBLE; tmp56 = c_re(inout[5 * iostride]); tmp58 = c_im(inout[5 * iostride]); tmp55 = c_re(W[4]); tmp57 = c_im(W[4]); tmp59 = (tmp55 * tmp56) + (tmp57 * tmp58); tmp125 = (tmp55 * tmp58) - (tmp57 * tmp56); } { fftw_real tmp124; fftw_real tmp127; fftw_real tmp121; fftw_real tmp122; ASSERT_ALIGNED_DOUBLE; tmp54 = tmp48 + tmp53; tmp65 = tmp59 + tmp64; tmp156 = tmp54 - tmp65; tmp124 = tmp48 - tmp53; tmp127 = tmp125 - tmp126; tmp128 = tmp124 - tmp127; tmp144 = tmp124 + tmp127; tmp157 = tmp119 + tmp120; tmp158 = tmp125 + tmp126; tmp159 = tmp157 - tmp158; tmp121 = tmp119 - tmp120; tmp122 = tmp59 - tmp64; tmp123 = tmp121 + tmp122; tmp143 = tmp121 - tmp122; } } { fftw_real tmp107; fftw_real tmp131; fftw_real tmp196; fftw_real tmp198; fftw_real tmp130; fftw_real tmp191; fftw_real tmp134; fftw_real tmp197; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp95; fftw_real tmp106; fftw_real tmp192; fftw_real tmp195; ASSERT_ALIGNED_DOUBLE; tmp95 = tmp91 - tmp94; tmp106 = K707106781 * (tmp100 + tmp105); tmp107 = tmp95 - tmp106; tmp131 = tmp95 + tmp106; tmp192 = K707106781 * (tmp137 + tmp136); tmp195 = tmp193 + tmp194; tmp196 = tmp192 + tmp195; tmp198 = tmp195 - tmp192; } { fftw_real tmp118; fftw_real tmp129; fftw_real tmp132; fftw_real tmp133; ASSERT_ALIGNED_DOUBLE; tmp118 = (K923879532 * tmp112) - (K382683432 * tmp117); tmp129 = (K923879532 * tmp123) + (K382683432 * tmp128); tmp130 = tmp118 - tmp129; tmp191 = tmp129 + tmp118; tmp132 = (K923879532 * tmp128) - (K382683432 * tmp123); tmp133 = (K382683432 * tmp112) + (K923879532 * tmp117); tmp134 = tmp132 + tmp133; tmp197 = tmp132 - tmp133; } c_re(inout[13 * iostride]) = tmp107 - tmp130; c_re(inout[5 * iostride]) = tmp107 + tmp130; c_re(inout[9 * iostride]) = tmp131 - tmp134; c_re(inout[iostride]) = tmp131 + tmp134; c_im(inout[iostride]) = tmp191 + tmp196; c_im(inout[9 * iostride]) = tmp196 - tmp191; c_im(inout[5 * iostride]) = tmp197 + tmp198; c_im(inout[13 * iostride]) = tmp198 - tmp197; } { fftw_real tmp139; fftw_real tmp147; fftw_real tmp202; fftw_real tmp204; fftw_real tmp146; fftw_real tmp199; fftw_real tmp150; fftw_real tmp203; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp135; fftw_real tmp138; fftw_real tmp200; fftw_real tmp201; ASSERT_ALIGNED_DOUBLE; tmp135 = tmp91 + tmp94; tmp138 = K707106781 * (tmp136 - tmp137); tmp139 = tmp135 - tmp138; tmp147 = tmp135 + tmp138; tmp200 = K707106781 * (tmp100 - tmp105); tmp201 = tmp194 - tmp193; tmp202 = tmp200 + tmp201; tmp204 = tmp201 - tmp200; } { fftw_real tmp142; fftw_real tmp145; fftw_real tmp148; fftw_real tmp149; ASSERT_ALIGNED_DOUBLE; tmp142 = (K382683432 * tmp140) - (K923879532 * tmp141); tmp145 = (K382683432 * tmp143) + (K923879532 * tmp144); tmp146 = tmp142 - tmp145; tmp199 = tmp145 + tmp142; tmp148 = (K382683432 * tmp144) - (K923879532 * tmp143); tmp149 = (K923879532 * tmp140) + (K382683432 * tmp141); tmp150 = tmp148 + tmp149; tmp203 = tmp148 - tmp149; } c_re(inout[15 * iostride]) = tmp139 - tmp146; c_re(inout[7 * iostride]) = tmp139 + tmp146; c_re(inout[11 * iostride]) = tmp147 - tmp150; c_re(inout[3 * iostride]) = tmp147 + tmp150; c_im(inout[3 * iostride]) = tmp199 + tmp202; c_im(inout[11 * iostride]) = tmp202 - tmp199; c_im(inout[7 * iostride]) = tmp203 + tmp204; c_im(inout[15 * iostride]) = tmp204 - tmp203; } { fftw_real tmp155; fftw_real tmp167; fftw_real tmp188; fftw_real tmp190; fftw_real tmp166; fftw_real tmp189; fftw_real tmp170; fftw_real tmp185; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp151; fftw_real tmp154; fftw_real tmp186; fftw_real tmp187; ASSERT_ALIGNED_DOUBLE; tmp151 = tmp7 - tmp18; tmp154 = tmp152 - tmp153; tmp155 = tmp151 + tmp154; tmp167 = tmp151 - tmp154; tmp186 = tmp30 - tmp41; tmp187 = tmp180 - tmp177; tmp188 = tmp186 + tmp187; tmp190 = tmp187 - tmp186; } { fftw_real tmp160; fftw_real tmp165; fftw_real tmp168; fftw_real tmp169; ASSERT_ALIGNED_DOUBLE; tmp160 = tmp156 - tmp159; tmp165 = tmp161 + tmp164; tmp166 = K707106781 * (tmp160 + tmp165); tmp189 = K707106781 * (tmp160 - tmp165); tmp168 = tmp164 - tmp161; tmp169 = tmp156 + tmp159; tmp170 = K707106781 * (tmp168 - tmp169); tmp185 = K707106781 * (tmp169 + tmp168); } c_re(inout[10 * iostride]) = tmp155 - tmp166; c_re(inout[2 * iostride]) = tmp155 + tmp166; c_re(inout[14 * iostride]) = tmp167 - tmp170; c_re(inout[6 * iostride]) = tmp167 + tmp170; c_im(inout[2 * iostride]) = tmp185 + tmp188; c_im(inout[10 * iostride]) = tmp188 - tmp185; c_im(inout[6 * iostride]) = tmp189 + tmp190; c_im(inout[14 * iostride]) = tmp190 - tmp189; } { fftw_real tmp43; fftw_real tmp171; fftw_real tmp182; fftw_real tmp184; fftw_real tmp90; fftw_real tmp183; fftw_real tmp174; fftw_real tmp175; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp19; fftw_real tmp42; fftw_real tmp176; fftw_real tmp181; ASSERT_ALIGNED_DOUBLE; tmp19 = tmp7 + tmp18; tmp42 = tmp30 + tmp41; tmp43 = tmp19 + tmp42; tmp171 = tmp19 - tmp42; tmp176 = tmp153 + tmp152; tmp181 = tmp177 + tmp180; tmp182 = tmp176 + tmp181; tmp184 = tmp181 - tmp176; } { fftw_real tmp66; fftw_real tmp89; fftw_real tmp172; fftw_real tmp173; ASSERT_ALIGNED_DOUBLE; tmp66 = tmp54 + tmp65; tmp89 = tmp77 + tmp88; tmp90 = tmp66 + tmp89; tmp183 = tmp66 - tmp89; tmp172 = tmp162 + tmp163; tmp173 = tmp157 + tmp158; tmp174 = tmp172 - tmp173; tmp175 = tmp173 + tmp172; } c_re(inout[8 * iostride]) = tmp43 - tmp90; c_re(inout[0]) = tmp43 + tmp90; c_re(inout[12 * iostride]) = tmp171 - tmp174; c_re(inout[4 * iostride]) = tmp171 + tmp174; c_im(inout[0]) = tmp175 + tmp182; c_im(inout[8 * iostride]) = tmp182 - tmp175; c_im(inout[4 * iostride]) = tmp183 + tmp184; c_im(inout[12 * iostride]) = tmp184 - tmp183; } } } static const int twiddle_order[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}; fftw_codelet_desc fftwi_twiddle_16_desc = { "fftwi_twiddle_16", (void (*)()) fftwi_twiddle_16, 16, FFTW_BACKWARD, FFTW_TWIDDLE, 363, 15, twiddle_order, };