/* * 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 20:45:10 EST 1999 */ #include #include /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -hc2hc-backward 5 */ /* * This function contains 64 FP additions, 42 FP multiplications, * (or, 42 additions, 20 multiplications, 22 fused multiply/add), * 25 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 K951056516 = FFTW_KONST(+0.951056516295153572116439333379382143405698634); static const fftw_real K587785252 = FFTW_KONST(+0.587785252292473129168705954639072768597652438); static const fftw_real K2_000000000 = FFTW_KONST(+2.000000000000000000000000000000000000000000000); static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000); static const fftw_real K1_118033988 = FFTW_KONST(+1.118033988749894848204586834365638117720309180); static const fftw_real K1_175570504 = FFTW_KONST(+1.175570504584946258337411909278145537195304875); static const fftw_real K1_902113032 = FFTW_KONST(+1.902113032590307144232878666758764286811397268); /* * 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_backward_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 tmp72; fftw_real tmp61; fftw_real tmp64; fftw_real tmp65; fftw_real tmp66; fftw_real tmp71; fftw_real tmp67; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp68; fftw_real tmp69; fftw_real tmp62; fftw_real tmp63; ASSERT_ALIGNED_DOUBLE; tmp68 = Y[-iostride]; tmp69 = Y[-2 * iostride]; tmp70 = (K1_902113032 * tmp68) + (K1_175570504 * tmp69); tmp72 = (K1_902113032 * tmp69) - (K1_175570504 * tmp68); tmp61 = X[0]; tmp62 = X[iostride]; tmp63 = X[2 * iostride]; tmp64 = tmp62 + tmp63; tmp65 = K1_118033988 * (tmp62 - tmp63); tmp66 = tmp61 - (K500000000 * tmp64); } X[0] = tmp61 + (K2_000000000 * tmp64); tmp71 = tmp66 - tmp65; X[3 * iostride] = tmp71 - tmp72; X[2 * iostride] = tmp71 + tmp72; tmp67 = tmp65 + tmp66; X[4 * iostride] = tmp67 + tmp70; X[iostride] = tmp67 - tmp70; } 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 tmp32; fftw_real tmp50; fftw_real tmp39; fftw_real tmp20; fftw_real tmp38; fftw_real tmp21; fftw_real tmp34; fftw_real tmp28; fftw_real tmp33; fftw_real tmp43; fftw_real tmp55; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp19; fftw_real tmp31; fftw_real tmp16; fftw_real tmp30; ASSERT_ALIGNED_DOUBLE; tmp13 = X[0]; { fftw_real tmp17; fftw_real tmp18; fftw_real tmp14; fftw_real tmp15; ASSERT_ALIGNED_DOUBLE; tmp17 = X[2 * iostride]; tmp18 = Y[-3 * iostride]; tmp19 = tmp17 + tmp18; tmp31 = tmp17 - tmp18; tmp14 = X[iostride]; tmp15 = Y[-4 * iostride]; tmp16 = tmp14 + tmp15; tmp30 = tmp14 - tmp15; } tmp32 = (K587785252 * tmp30) - (K951056516 * tmp31); tmp50 = (K951056516 * tmp30) + (K587785252 * tmp31); tmp39 = K559016994 * (tmp16 - tmp19); tmp20 = tmp16 + tmp19; tmp38 = tmp13 - (K250000000 * tmp20); } { fftw_real tmp27; fftw_real tmp42; fftw_real tmp24; fftw_real tmp41; ASSERT_ALIGNED_DOUBLE; tmp21 = Y[0]; { fftw_real tmp25; fftw_real tmp26; fftw_real tmp22; fftw_real tmp23; ASSERT_ALIGNED_DOUBLE; tmp25 = Y[-2 * iostride]; tmp26 = X[3 * iostride]; tmp27 = tmp25 - tmp26; tmp42 = tmp25 + tmp26; tmp22 = Y[-iostride]; tmp23 = X[4 * iostride]; tmp24 = tmp22 - tmp23; tmp41 = tmp22 + tmp23; } tmp34 = K559016994 * (tmp24 - tmp27); tmp28 = tmp24 + tmp27; tmp33 = tmp21 - (K250000000 * tmp28); tmp43 = (K587785252 * tmp41) - (K951056516 * tmp42); tmp55 = (K951056516 * tmp41) + (K587785252 * tmp42); } X[0] = tmp13 + tmp20; { fftw_real tmp52; fftw_real tmp58; fftw_real tmp56; fftw_real tmp60; fftw_real tmp51; fftw_real tmp54; ASSERT_ALIGNED_DOUBLE; tmp51 = tmp34 + tmp33; tmp52 = tmp50 + tmp51; tmp58 = tmp51 - tmp50; tmp54 = tmp39 + tmp38; tmp56 = tmp54 - tmp55; tmp60 = tmp54 + tmp55; { fftw_real tmp49; fftw_real tmp53; fftw_real tmp57; fftw_real tmp59; ASSERT_ALIGNED_DOUBLE; tmp49 = c_re(W[0]); tmp53 = c_im(W[0]); Y[-3 * iostride] = (tmp49 * tmp52) - (tmp53 * tmp56); X[iostride] = (tmp53 * tmp52) + (tmp49 * tmp56); tmp57 = c_re(W[3]); tmp59 = c_im(W[3]); Y[0] = (tmp57 * tmp58) - (tmp59 * tmp60); X[4 * iostride] = (tmp59 * tmp58) + (tmp57 * tmp60); } } Y[-4 * iostride] = tmp21 + tmp28; { fftw_real tmp36; fftw_real tmp46; fftw_real tmp44; fftw_real tmp48; fftw_real tmp35; fftw_real tmp40; ASSERT_ALIGNED_DOUBLE; tmp35 = tmp33 - tmp34; tmp36 = tmp32 + tmp35; tmp46 = tmp35 - tmp32; tmp40 = tmp38 - tmp39; tmp44 = tmp40 - tmp43; tmp48 = tmp40 + tmp43; { fftw_real tmp29; fftw_real tmp37; fftw_real tmp45; fftw_real tmp47; ASSERT_ALIGNED_DOUBLE; tmp29 = c_re(W[1]); tmp37 = c_im(W[1]); Y[-2 * iostride] = (tmp29 * tmp36) - (tmp37 * tmp44); X[2 * iostride] = (tmp37 * tmp36) + (tmp29 * tmp44); tmp45 = c_re(W[2]); tmp47 = c_im(W[2]); Y[-iostride] = (tmp45 * tmp46) - (tmp47 * tmp48); X[3 * iostride] = (tmp47 * tmp46) + (tmp45 * tmp48); } } } if (i == m) { fftw_real tmp10; fftw_real tmp12; fftw_real tmp1; fftw_real tmp4; fftw_real tmp5; fftw_real tmp6; fftw_real tmp11; fftw_real tmp7; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp8; fftw_real tmp9; fftw_real tmp2; fftw_real tmp3; ASSERT_ALIGNED_DOUBLE; tmp8 = Y[-iostride]; tmp9 = Y[0]; tmp10 = (K1_902113032 * tmp8) + (K1_175570504 * tmp9); tmp12 = (K1_175570504 * tmp8) - (K1_902113032 * tmp9); tmp1 = X[2 * iostride]; tmp2 = X[iostride]; tmp3 = X[0]; tmp4 = tmp2 + tmp3; tmp5 = (K500000000 * tmp4) - tmp1; tmp6 = K1_118033988 * (tmp3 - tmp2); } X[0] = tmp1 + (K2_000000000 * tmp4); tmp11 = tmp6 - tmp5; X[2 * iostride] = tmp11 + tmp12; X[3 * iostride] = tmp12 - tmp11; tmp7 = tmp5 + tmp6; X[iostride] = tmp7 - tmp10; X[4 * iostride] = -(tmp7 + tmp10); } } static const int twiddle_order[] = {1, 2, 3, 4}; fftw_codelet_desc fftw_hc2hc_backward_5_desc = { "fftw_hc2hc_backward_5", (void (*)()) fftw_hc2hc_backward_5, 5, FFTW_BACKWARD, FFTW_HC2HC, 124, 4, twiddle_order, };