/* * Copyright (c) 1997-1999, 2003 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 Mon Mar 24 02:07:51 EST 2003 */ #include "fftw-int.h" #include "fftw.h" /* Generated by: /homee/stevenj/cvs/fftw/gensrc/genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -hc2hc-forward 6 */ /* * This function contains 72 FP additions, 36 FP multiplications, * (or, 54 additions, 18 multiplications, 18 fused multiply/add), * 23 stack variables, and 48 memory accesses */ static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000); static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627); /* * Generator Id's : * $Id: exprdag.ml,v 1.43 2003/03/16 23:43:46 stevenj Exp $ * $Id: fft.ml,v 1.44 2003/03/16 23:43:46 stevenj Exp $ * $Id: to_c.ml,v 1.26 2003/03/16 23:43:46 stevenj Exp $ */ void fftw_hc2hc_forward_6(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 + (6 * iostride); { fftw_real tmp71; fftw_real tmp81; fftw_real tmp77; fftw_real tmp79; fftw_real tmp74; fftw_real tmp80; fftw_real tmp69; fftw_real tmp70; fftw_real tmp78; fftw_real tmp82; ASSERT_ALIGNED_DOUBLE; tmp69 = X[0]; tmp70 = X[3 * iostride]; tmp71 = tmp69 - tmp70; tmp81 = tmp69 + tmp70; { fftw_real tmp75; fftw_real tmp76; fftw_real tmp72; fftw_real tmp73; ASSERT_ALIGNED_DOUBLE; tmp75 = X[4 * iostride]; tmp76 = X[iostride]; tmp77 = tmp75 - tmp76; tmp79 = tmp75 + tmp76; tmp72 = X[2 * iostride]; tmp73 = X[5 * iostride]; tmp74 = tmp72 - tmp73; tmp80 = tmp72 + tmp73; } Y[-iostride] = K866025403 * (tmp77 - tmp74); tmp78 = tmp74 + tmp77; X[iostride] = tmp71 - (K500000000 * tmp78); X[3 * iostride] = tmp71 + tmp78; Y[-2 * iostride] = -(K866025403 * (tmp79 - tmp80)); tmp82 = tmp80 + tmp79; X[2 * iostride] = tmp81 - (K500000000 * tmp82); X[0] = tmp81 + tmp82; } X = X + dist; Y = Y - dist; for (i = 2; i < m; i = i + 2, X = X + dist, Y = Y - dist, W = W + 5) { fftw_real tmp19; fftw_real tmp43; fftw_real tmp62; fftw_real tmp66; fftw_real tmp41; fftw_real tmp45; fftw_real tmp53; fftw_real tmp57; fftw_real tmp30; fftw_real tmp44; fftw_real tmp50; fftw_real tmp56; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp13; fftw_real tmp61; fftw_real tmp18; fftw_real tmp60; ASSERT_ALIGNED_DOUBLE; tmp13 = X[0]; tmp61 = Y[-5 * iostride]; { fftw_real tmp15; fftw_real tmp17; fftw_real tmp14; fftw_real tmp16; ASSERT_ALIGNED_DOUBLE; tmp15 = X[3 * iostride]; tmp17 = Y[-2 * iostride]; tmp14 = c_re(W[2]); tmp16 = c_im(W[2]); tmp18 = (tmp14 * tmp15) - (tmp16 * tmp17); tmp60 = (tmp16 * tmp15) + (tmp14 * tmp17); } tmp19 = tmp13 - tmp18; tmp43 = tmp13 + tmp18; tmp62 = tmp60 + tmp61; tmp66 = tmp61 - tmp60; } { fftw_real tmp35; fftw_real tmp51; fftw_real tmp40; fftw_real tmp52; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp32; fftw_real tmp34; fftw_real tmp31; fftw_real tmp33; ASSERT_ALIGNED_DOUBLE; tmp32 = X[4 * iostride]; tmp34 = Y[-iostride]; tmp31 = c_re(W[3]); tmp33 = c_im(W[3]); tmp35 = (tmp31 * tmp32) - (tmp33 * tmp34); tmp51 = (tmp33 * tmp32) + (tmp31 * tmp34); } { fftw_real tmp37; fftw_real tmp39; fftw_real tmp36; fftw_real tmp38; ASSERT_ALIGNED_DOUBLE; tmp37 = X[iostride]; tmp39 = Y[-4 * iostride]; tmp36 = c_re(W[0]); tmp38 = c_im(W[0]); tmp40 = (tmp36 * tmp37) - (tmp38 * tmp39); tmp52 = (tmp38 * tmp37) + (tmp36 * tmp39); } tmp41 = tmp35 - tmp40; tmp45 = tmp35 + tmp40; tmp53 = tmp51 + tmp52; tmp57 = tmp51 - tmp52; } { fftw_real tmp24; fftw_real tmp48; fftw_real tmp29; fftw_real tmp49; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp21; fftw_real tmp23; fftw_real tmp20; fftw_real tmp22; ASSERT_ALIGNED_DOUBLE; tmp21 = X[2 * iostride]; tmp23 = Y[-3 * iostride]; tmp20 = c_re(W[1]); tmp22 = c_im(W[1]); tmp24 = (tmp20 * tmp21) - (tmp22 * tmp23); tmp48 = (tmp22 * tmp21) + (tmp20 * tmp23); } { fftw_real tmp26; fftw_real tmp28; fftw_real tmp25; fftw_real tmp27; ASSERT_ALIGNED_DOUBLE; tmp26 = X[5 * iostride]; tmp28 = Y[0]; tmp25 = c_re(W[4]); tmp27 = c_im(W[4]); tmp29 = (tmp25 * tmp26) - (tmp27 * tmp28); tmp49 = (tmp27 * tmp26) + (tmp25 * tmp28); } tmp30 = tmp24 - tmp29; tmp44 = tmp24 + tmp29; tmp50 = tmp48 + tmp49; tmp56 = tmp48 - tmp49; } { fftw_real tmp58; fftw_real tmp42; fftw_real tmp55; fftw_real tmp68; fftw_real tmp65; fftw_real tmp67; ASSERT_ALIGNED_DOUBLE; tmp58 = K866025403 * (tmp56 - tmp57); tmp42 = tmp30 + tmp41; tmp55 = tmp19 - (K500000000 * tmp42); Y[-3 * iostride] = tmp19 + tmp42; X[iostride] = tmp55 + tmp58; Y[-5 * iostride] = tmp55 - tmp58; tmp68 = K866025403 * (tmp41 - tmp30); tmp65 = tmp56 + tmp57; tmp67 = tmp66 - (K500000000 * tmp65); X[3 * iostride] = -(tmp65 + tmp66); Y[-iostride] = tmp68 + tmp67; X[5 * iostride] = -(tmp67 - tmp68); } { fftw_real tmp54; fftw_real tmp46; fftw_real tmp47; fftw_real tmp63; fftw_real tmp59; fftw_real tmp64; ASSERT_ALIGNED_DOUBLE; tmp54 = K866025403 * (tmp50 - tmp53); tmp46 = tmp44 + tmp45; tmp47 = tmp43 - (K500000000 * tmp46); X[0] = tmp43 + tmp46; Y[-4 * iostride] = tmp47 + tmp54; X[2 * iostride] = tmp47 - tmp54; tmp63 = K866025403 * (tmp45 - tmp44); tmp59 = tmp50 + tmp53; tmp64 = tmp62 - (K500000000 * tmp59); Y[0] = tmp59 + tmp62; Y[-2 * iostride] = tmp64 - tmp63; X[4 * iostride] = -(tmp63 + tmp64); } } if (i == m) { fftw_real tmp1; fftw_real tmp11; fftw_real tmp4; fftw_real tmp9; fftw_real tmp8; fftw_real tmp10; fftw_real tmp5; fftw_real tmp12; ASSERT_ALIGNED_DOUBLE; tmp1 = X[0]; tmp11 = X[3 * iostride]; { fftw_real tmp2; fftw_real tmp3; fftw_real tmp6; fftw_real tmp7; ASSERT_ALIGNED_DOUBLE; tmp2 = X[2 * iostride]; tmp3 = X[4 * iostride]; tmp4 = tmp2 - tmp3; tmp9 = K866025403 * (tmp2 + tmp3); tmp6 = X[iostride]; tmp7 = X[5 * iostride]; tmp8 = K866025403 * (tmp6 - tmp7); tmp10 = tmp6 + tmp7; } X[iostride] = tmp1 - tmp4; tmp5 = tmp1 + (K500000000 * tmp4); X[2 * iostride] = tmp5 - tmp8; X[0] = tmp5 + tmp8; Y[-iostride] = tmp11 - tmp10; tmp12 = (K500000000 * tmp10) + tmp11; Y[0] = -(tmp9 + tmp12); Y[-2 * iostride] = tmp9 - tmp12; } } static const int twiddle_order[] = { 1, 2, 3, 4, 5 }; fftw_codelet_desc fftw_hc2hc_forward_6_desc = { "fftw_hc2hc_forward_6", (void (*)()) fftw_hc2hc_forward_6, 6, FFTW_FORWARD, FFTW_HC2HC, 135, 5, twiddle_order, };