/* * 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 20:44:46 EST 1999 */ #include #include /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -hc2hc-forward 7 */ /* * This function contains 120 FP additions, 96 FP multiplications, * (or, 108 additions, 84 multiplications, 12 fused multiply/add), * 25 stack variables, and 56 memory accesses */ static const fftw_real K222520933 = FFTW_KONST(+0.222520933956314404288902564496794759466355569); static const fftw_real K900968867 = FFTW_KONST(+0.900968867902419126236102319507445051165919162); static const fftw_real K623489801 = FFTW_KONST(+0.623489801858733530525004884004239810632274731); static const fftw_real K433883739 = FFTW_KONST(+0.433883739117558120475768332848358754609990728); static const fftw_real K974927912 = FFTW_KONST(+0.974927912181823607018131682993931217232785801); static const fftw_real K781831482 = FFTW_KONST(+0.781831482468029808708444526674057750232334519); /* * Generator Id's : * $Id: exprdag.ml,v 1.41 1999/05/26 15:44:14 fftw Exp $ * $Id: fft.ml,v 1.43 1999/05/17 19:44:18 fftw Exp $ * $Id: to_c.ml,v 1.25 1999/10/26 21:41:32 stevenj Exp $ */ void fftw_hc2hc_forward_7(fftw_real *A, const fftw_complex *W, int iostride, int m, int dist) { int i; fftw_real *X; fftw_real *Y; X = A; Y = A + (7 * iostride); { fftw_real tmp85; fftw_real tmp84; fftw_real tmp88; fftw_real tmp78; fftw_real tmp86; fftw_real tmp81; fftw_real tmp87; fftw_real tmp82; fftw_real tmp83; ASSERT_ALIGNED_DOUBLE; tmp85 = X[0]; tmp82 = X[iostride]; tmp83 = X[6 * iostride]; tmp84 = tmp82 - tmp83; tmp88 = tmp82 + tmp83; { fftw_real tmp76; fftw_real tmp77; fftw_real tmp79; fftw_real tmp80; ASSERT_ALIGNED_DOUBLE; tmp76 = X[2 * iostride]; tmp77 = X[5 * iostride]; tmp78 = tmp76 - tmp77; tmp86 = tmp76 + tmp77; tmp79 = X[3 * iostride]; tmp80 = X[4 * iostride]; tmp81 = tmp79 - tmp80; tmp87 = tmp79 + tmp80; } Y[-3 * iostride] = (K781831482 * tmp78) - (K974927912 * tmp81) - (K433883739 * tmp84); Y[-iostride] = -((K781831482 * tmp84) + (K974927912 * tmp78) + (K433883739 * tmp81)); Y[-2 * iostride] = (K433883739 * tmp78) + (K781831482 * tmp81) - (K974927912 * tmp84); X[2 * iostride] = tmp85 + (K623489801 * tmp87) - (K900968867 * tmp86) - (K222520933 * tmp88); X[iostride] = tmp85 + (K623489801 * tmp88) - (K900968867 * tmp87) - (K222520933 * tmp86); X[3 * iostride] = tmp85 + (K623489801 * tmp86) - (K222520933 * tmp87) - (K900968867 * tmp88); X[0] = tmp85 + tmp88 + tmp86 + tmp87; } X = X + dist; Y = Y - dist; for (i = 2; i < m; i = i + 2, X = X + dist, Y = Y - dist, W = W + 6) { fftw_real tmp14; fftw_real tmp66; fftw_real tmp25; fftw_real tmp68; fftw_real tmp51; fftw_real tmp63; fftw_real tmp36; fftw_real tmp69; fftw_real tmp57; fftw_real tmp64; fftw_real tmp47; fftw_real tmp70; fftw_real tmp54; fftw_real tmp65; ASSERT_ALIGNED_DOUBLE; tmp14 = X[0]; tmp66 = Y[-6 * iostride]; { fftw_real tmp19; fftw_real tmp49; fftw_real tmp24; fftw_real tmp50; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp16; fftw_real tmp18; fftw_real tmp15; fftw_real tmp17; ASSERT_ALIGNED_DOUBLE; tmp16 = X[iostride]; tmp18 = Y[-5 * iostride]; tmp15 = c_re(W[0]); tmp17 = c_im(W[0]); tmp19 = (tmp15 * tmp16) - (tmp17 * tmp18); tmp49 = (tmp17 * tmp16) + (tmp15 * tmp18); } { fftw_real tmp21; fftw_real tmp23; fftw_real tmp20; fftw_real tmp22; ASSERT_ALIGNED_DOUBLE; tmp21 = X[6 * iostride]; tmp23 = Y[0]; tmp20 = c_re(W[5]); tmp22 = c_im(W[5]); tmp24 = (tmp20 * tmp21) - (tmp22 * tmp23); tmp50 = (tmp22 * tmp21) + (tmp20 * tmp23); } tmp25 = tmp19 + tmp24; tmp68 = tmp24 - tmp19; tmp51 = tmp49 - tmp50; tmp63 = tmp49 + tmp50; } { fftw_real tmp30; fftw_real tmp55; fftw_real tmp35; fftw_real tmp56; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp27; fftw_real tmp29; fftw_real tmp26; fftw_real tmp28; ASSERT_ALIGNED_DOUBLE; tmp27 = X[2 * iostride]; tmp29 = Y[-4 * iostride]; tmp26 = c_re(W[1]); tmp28 = c_im(W[1]); tmp30 = (tmp26 * tmp27) - (tmp28 * tmp29); tmp55 = (tmp28 * tmp27) + (tmp26 * tmp29); } { fftw_real tmp32; fftw_real tmp34; fftw_real tmp31; fftw_real tmp33; ASSERT_ALIGNED_DOUBLE; tmp32 = X[5 * iostride]; tmp34 = Y[-iostride]; tmp31 = c_re(W[4]); tmp33 = c_im(W[4]); tmp35 = (tmp31 * tmp32) - (tmp33 * tmp34); tmp56 = (tmp33 * tmp32) + (tmp31 * tmp34); } tmp36 = tmp30 + tmp35; tmp69 = tmp35 - tmp30; tmp57 = tmp55 - tmp56; tmp64 = tmp55 + tmp56; } { fftw_real tmp41; fftw_real tmp52; fftw_real tmp46; fftw_real tmp53; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp38; fftw_real tmp40; fftw_real tmp37; fftw_real tmp39; ASSERT_ALIGNED_DOUBLE; tmp38 = X[3 * iostride]; tmp40 = Y[-3 * iostride]; tmp37 = c_re(W[2]); tmp39 = c_im(W[2]); tmp41 = (tmp37 * tmp38) - (tmp39 * tmp40); tmp52 = (tmp39 * tmp38) + (tmp37 * tmp40); } { fftw_real tmp43; fftw_real tmp45; fftw_real tmp42; fftw_real tmp44; ASSERT_ALIGNED_DOUBLE; tmp43 = X[4 * iostride]; tmp45 = Y[-2 * iostride]; tmp42 = c_re(W[3]); tmp44 = c_im(W[3]); tmp46 = (tmp42 * tmp43) - (tmp44 * tmp45); tmp53 = (tmp44 * tmp43) + (tmp42 * tmp45); } tmp47 = tmp41 + tmp46; tmp70 = tmp46 - tmp41; tmp54 = tmp52 - tmp53; tmp65 = tmp52 + tmp53; } { fftw_real tmp60; fftw_real tmp59; fftw_real tmp73; fftw_real tmp72; ASSERT_ALIGNED_DOUBLE; X[0] = tmp14 + tmp25 + tmp36 + tmp47; tmp60 = (K781831482 * tmp51) + (K974927912 * tmp57) + (K433883739 * tmp54); tmp59 = tmp14 + (K623489801 * tmp25) - (K900968867 * tmp47) - (K222520933 * tmp36); Y[-6 * iostride] = tmp59 - tmp60; X[iostride] = tmp59 + tmp60; { fftw_real tmp62; fftw_real tmp61; fftw_real tmp58; fftw_real tmp48; ASSERT_ALIGNED_DOUBLE; tmp62 = (K433883739 * tmp51) + (K974927912 * tmp54) - (K781831482 * tmp57); tmp61 = tmp14 + (K623489801 * tmp36) - (K222520933 * tmp47) - (K900968867 * tmp25); Y[-4 * iostride] = tmp61 - tmp62; X[3 * iostride] = tmp61 + tmp62; tmp58 = (K974927912 * tmp51) - (K781831482 * tmp54) - (K433883739 * tmp57); tmp48 = tmp14 + (K623489801 * tmp47) - (K900968867 * tmp36) - (K222520933 * tmp25); Y[-5 * iostride] = tmp48 - tmp58; X[2 * iostride] = tmp48 + tmp58; } Y[0] = tmp63 + tmp64 + tmp65 + tmp66; tmp73 = (K974927912 * tmp68) - (K781831482 * tmp70) - (K433883739 * tmp69); tmp72 = (K623489801 * tmp65) + tmp66 - (K900968867 * tmp64) - (K222520933 * tmp63); X[5 * iostride] = -(tmp72 - tmp73); Y[-2 * iostride] = tmp73 + tmp72; { fftw_real tmp75; fftw_real tmp74; fftw_real tmp71; fftw_real tmp67; ASSERT_ALIGNED_DOUBLE; tmp75 = (K433883739 * tmp68) + (K974927912 * tmp70) - (K781831482 * tmp69); tmp74 = (K623489801 * tmp64) + tmp66 - (K222520933 * tmp65) - (K900968867 * tmp63); X[4 * iostride] = -(tmp74 - tmp75); Y[-3 * iostride] = tmp75 + tmp74; tmp71 = (K781831482 * tmp68) + (K974927912 * tmp69) + (K433883739 * tmp70); tmp67 = (K623489801 * tmp63) + tmp66 - (K900968867 * tmp65) - (K222520933 * tmp64); X[6 * iostride] = -(tmp67 - tmp71); Y[-iostride] = tmp71 + tmp67; } } } if (i == m) { fftw_real tmp1; fftw_real tmp10; fftw_real tmp13; fftw_real tmp4; fftw_real tmp11; fftw_real tmp7; fftw_real tmp12; fftw_real tmp8; fftw_real tmp9; ASSERT_ALIGNED_DOUBLE; tmp1 = X[0]; tmp8 = X[iostride]; tmp9 = X[6 * iostride]; tmp10 = tmp8 - tmp9; tmp13 = tmp8 + tmp9; { fftw_real tmp2; fftw_real tmp3; fftw_real tmp5; fftw_real tmp6; ASSERT_ALIGNED_DOUBLE; tmp2 = X[2 * iostride]; tmp3 = X[5 * iostride]; tmp4 = tmp2 - tmp3; tmp11 = tmp2 + tmp3; tmp5 = X[3 * iostride]; tmp6 = X[4 * iostride]; tmp7 = tmp5 - tmp6; tmp12 = tmp5 + tmp6; } Y[0] = -((K781831482 * tmp11) + (K974927912 * tmp12) + (K433883739 * tmp13)); Y[-iostride] = (K781831482 * tmp12) - (K974927912 * tmp13) - (K433883739 * tmp11); Y[-2 * iostride] = (K974927912 * tmp11) - (K781831482 * tmp13) - (K433883739 * tmp12); X[iostride] = tmp1 + (K222520933 * tmp10) - (K623489801 * tmp7) - (K900968867 * tmp4); X[2 * iostride] = tmp1 + (K900968867 * tmp7) - (K623489801 * tmp10) - (K222520933 * tmp4); X[3 * iostride] = tmp1 + tmp4 - (tmp7 + tmp10); X[0] = tmp1 + (K623489801 * tmp4) + (K222520933 * tmp7) + (K900968867 * tmp10); } } static const int twiddle_order[] = {1, 2, 3, 4, 5, 6}; fftw_codelet_desc fftw_hc2hc_forward_7_desc = { "fftw_hc2hc_forward_7", (void (*)()) fftw_hc2hc_forward_7, 7, FFTW_FORWARD, FFTW_HC2HC, 157, 6, twiddle_order, };