/* * 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 20:44:44 EST 1999 */ #include #include /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -hc2hc-forward 5 */ /* * This function contains 64 FP additions, 40 FP multiplications, * (or, 44 additions, 20 multiplications, 20 fused multiply/add), * 27 stack variables, and 40 memory accesses */ static const fftw_real K250000000 = FFTW_KONST(+0.250000000000000000000000000000000000000000000); static const fftw_real K559016994 = FFTW_KONST(+0.559016994374947424102293417182819058860154590); static const fftw_real K587785252 = FFTW_KONST(+0.587785252292473129168705954639072768597652438); static const fftw_real K951056516 = FFTW_KONST(+0.951056516295153572116439333379382143405698634); /* * 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_5(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 + (5 * iostride); { fftw_real tmp70; fftw_real tmp67; fftw_real tmp68; fftw_real tmp63; fftw_real tmp71; fftw_real tmp66; fftw_real tmp69; fftw_real tmp72; ASSERT_ALIGNED_DOUBLE; tmp70 = X[0]; { fftw_real tmp61; fftw_real tmp62; fftw_real tmp64; fftw_real tmp65; ASSERT_ALIGNED_DOUBLE; tmp61 = X[4 * iostride]; tmp62 = X[iostride]; tmp67 = tmp62 + tmp61; tmp64 = X[2 * iostride]; tmp65 = X[3 * iostride]; tmp68 = tmp64 + tmp65; tmp63 = tmp61 - tmp62; tmp71 = tmp67 + tmp68; tmp66 = tmp64 - tmp65; } Y[-iostride] = (K951056516 * tmp63) - (K587785252 * tmp66); Y[-2 * iostride] = (K587785252 * tmp63) + (K951056516 * tmp66); X[0] = tmp70 + tmp71; tmp69 = K559016994 * (tmp67 - tmp68); tmp72 = tmp70 - (K250000000 * tmp71); X[iostride] = tmp69 + tmp72; X[2 * iostride] = tmp72 - tmp69; } X = X + dist; Y = Y - dist; for (i = 2; i < m; i = i + 2, X = X + dist, Y = Y - dist, W = W + 4) { fftw_real tmp13; fftw_real tmp52; fftw_real tmp42; fftw_real tmp45; fftw_real tmp49; fftw_real tmp50; fftw_real tmp51; fftw_real tmp54; fftw_real tmp53; fftw_real tmp24; fftw_real tmp35; fftw_real tmp36; ASSERT_ALIGNED_DOUBLE; tmp13 = X[0]; tmp52 = Y[-4 * iostride]; { fftw_real tmp18; fftw_real tmp40; fftw_real tmp34; fftw_real tmp44; fftw_real tmp23; fftw_real tmp41; fftw_real tmp29; fftw_real tmp43; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp15; fftw_real tmp17; fftw_real tmp14; fftw_real tmp16; ASSERT_ALIGNED_DOUBLE; tmp15 = X[iostride]; tmp17 = Y[-3 * iostride]; tmp14 = c_re(W[0]); tmp16 = c_im(W[0]); tmp18 = (tmp14 * tmp15) - (tmp16 * tmp17); tmp40 = (tmp16 * tmp15) + (tmp14 * tmp17); } { fftw_real tmp31; fftw_real tmp33; fftw_real tmp30; fftw_real tmp32; ASSERT_ALIGNED_DOUBLE; tmp31 = X[3 * iostride]; tmp33 = Y[-iostride]; tmp30 = c_re(W[2]); tmp32 = c_im(W[2]); tmp34 = (tmp30 * tmp31) - (tmp32 * tmp33); tmp44 = (tmp32 * tmp31) + (tmp30 * tmp33); } { fftw_real tmp20; fftw_real tmp22; fftw_real tmp19; fftw_real tmp21; ASSERT_ALIGNED_DOUBLE; tmp20 = X[4 * iostride]; tmp22 = Y[0]; tmp19 = c_re(W[3]); tmp21 = c_im(W[3]); tmp23 = (tmp19 * tmp20) - (tmp21 * tmp22); tmp41 = (tmp21 * tmp20) + (tmp19 * tmp22); } { fftw_real tmp26; fftw_real tmp28; fftw_real tmp25; fftw_real tmp27; ASSERT_ALIGNED_DOUBLE; tmp26 = X[2 * iostride]; tmp28 = Y[-2 * iostride]; tmp25 = c_re(W[1]); tmp27 = c_im(W[1]); tmp29 = (tmp25 * tmp26) - (tmp27 * tmp28); tmp43 = (tmp27 * tmp26) + (tmp25 * tmp28); } tmp42 = tmp40 - tmp41; tmp45 = tmp43 - tmp44; tmp49 = tmp40 + tmp41; tmp50 = tmp43 + tmp44; tmp51 = tmp49 + tmp50; tmp54 = tmp29 - tmp34; tmp53 = tmp18 - tmp23; tmp24 = tmp18 + tmp23; tmp35 = tmp29 + tmp34; tmp36 = tmp24 + tmp35; } X[0] = tmp13 + tmp36; { fftw_real tmp46; fftw_real tmp48; fftw_real tmp39; fftw_real tmp47; fftw_real tmp37; fftw_real tmp38; ASSERT_ALIGNED_DOUBLE; tmp46 = (K951056516 * tmp42) + (K587785252 * tmp45); tmp48 = (K951056516 * tmp45) - (K587785252 * tmp42); tmp37 = K559016994 * (tmp24 - tmp35); tmp38 = tmp13 - (K250000000 * tmp36); tmp39 = tmp37 + tmp38; tmp47 = tmp38 - tmp37; Y[-4 * iostride] = tmp39 - tmp46; X[iostride] = tmp39 + tmp46; X[2 * iostride] = tmp47 - tmp48; Y[-3 * iostride] = tmp47 + tmp48; } Y[0] = tmp51 + tmp52; { fftw_real tmp55; fftw_real tmp60; fftw_real tmp58; fftw_real tmp59; fftw_real tmp56; fftw_real tmp57; ASSERT_ALIGNED_DOUBLE; tmp55 = (K951056516 * tmp53) + (K587785252 * tmp54); tmp60 = (K951056516 * tmp54) - (K587785252 * tmp53); tmp56 = K559016994 * (tmp49 - tmp50); tmp57 = tmp52 - (K250000000 * tmp51); tmp58 = tmp56 + tmp57; tmp59 = tmp57 - tmp56; X[4 * iostride] = -(tmp55 + tmp58); Y[-iostride] = tmp58 - tmp55; X[3 * iostride] = -(tmp59 - tmp60); Y[-2 * iostride] = tmp60 + tmp59; } } if (i == m) { fftw_real tmp8; fftw_real tmp3; fftw_real tmp6; fftw_real tmp9; fftw_real tmp12; fftw_real tmp11; fftw_real tmp7; fftw_real tmp10; ASSERT_ALIGNED_DOUBLE; tmp8 = X[0]; { fftw_real tmp1; fftw_real tmp2; fftw_real tmp4; fftw_real tmp5; ASSERT_ALIGNED_DOUBLE; tmp1 = X[2 * iostride]; tmp2 = X[3 * iostride]; tmp3 = tmp1 - tmp2; tmp4 = X[4 * iostride]; tmp5 = X[iostride]; tmp6 = tmp4 - tmp5; tmp9 = tmp3 + tmp6; tmp12 = tmp4 + tmp5; tmp11 = tmp1 + tmp2; } X[2 * iostride] = tmp8 + tmp9; tmp7 = K559016994 * (tmp3 - tmp6); tmp10 = tmp8 - (K250000000 * tmp9); X[0] = tmp7 + tmp10; X[iostride] = tmp10 - tmp7; Y[0] = -((K951056516 * tmp11) + (K587785252 * tmp12)); Y[-iostride] = -((K951056516 * tmp12) - (K587785252 * tmp11)); } } static const int twiddle_order[] = {1, 2, 3, 4}; fftw_codelet_desc fftw_hc2hc_forward_5_desc = { "fftw_hc2hc_forward_5", (void (*)()) fftw_hc2hc_forward_5, 5, FFTW_FORWARD, FFTW_HC2HC, 113, 4, twiddle_order, };