/* * 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 02:08:26 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 -twiddleinv 6 */ /* * This function contains 46 FP additions, 28 FP multiplications, * (or, 32 additions, 14 multiplications, 14 fused multiply/add), * 22 stack variables, and 24 memory accesses */ static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000); static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627); /* * Generator Id's : * $Id: ftwi_6.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ * $Id: ftwi_6.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ * $Id: ftwi_6.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ */ void fftwi_twiddle_6(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 + 5) { fftw_real tmp7; fftw_real tmp31; fftw_real tmp50; fftw_real tmp54; fftw_real tmp29; fftw_real tmp33; fftw_real tmp38; fftw_real tmp44; fftw_real tmp18; fftw_real tmp32; fftw_real tmp41; fftw_real tmp45; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp1; fftw_real tmp49; fftw_real tmp6; fftw_real tmp48; ASSERT_ALIGNED_DOUBLE; tmp1 = c_re(inout[0]); tmp49 = c_im(inout[0]); { fftw_real tmp3; fftw_real tmp5; fftw_real tmp2; fftw_real tmp4; ASSERT_ALIGNED_DOUBLE; tmp3 = c_re(inout[3 * iostride]); tmp5 = c_im(inout[3 * iostride]); tmp2 = c_re(W[2]); tmp4 = c_im(W[2]); tmp6 = (tmp2 * tmp3) + (tmp4 * tmp5); tmp48 = (tmp2 * tmp5) - (tmp4 * tmp3); } tmp7 = tmp1 - tmp6; tmp31 = tmp1 + tmp6; tmp50 = tmp48 + tmp49; tmp54 = tmp49 - tmp48; } { fftw_real tmp23; fftw_real tmp36; fftw_real tmp28; fftw_real tmp37; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp20; fftw_real tmp22; fftw_real tmp19; fftw_real tmp21; ASSERT_ALIGNED_DOUBLE; tmp20 = c_re(inout[4 * iostride]); tmp22 = c_im(inout[4 * iostride]); tmp19 = c_re(W[3]); tmp21 = c_im(W[3]); tmp23 = (tmp19 * tmp20) + (tmp21 * tmp22); tmp36 = (tmp19 * tmp22) - (tmp21 * tmp20); } { fftw_real tmp25; fftw_real tmp27; fftw_real tmp24; fftw_real tmp26; ASSERT_ALIGNED_DOUBLE; tmp25 = c_re(inout[iostride]); tmp27 = c_im(inout[iostride]); tmp24 = c_re(W[0]); tmp26 = c_im(W[0]); tmp28 = (tmp24 * tmp25) + (tmp26 * tmp27); tmp37 = (tmp24 * tmp27) - (tmp26 * tmp25); } tmp29 = tmp23 - tmp28; tmp33 = tmp23 + tmp28; tmp38 = tmp36 - tmp37; tmp44 = tmp36 + tmp37; } { fftw_real tmp12; fftw_real tmp39; fftw_real tmp17; fftw_real tmp40; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp9; fftw_real tmp11; fftw_real tmp8; fftw_real tmp10; ASSERT_ALIGNED_DOUBLE; tmp9 = c_re(inout[2 * iostride]); tmp11 = c_im(inout[2 * iostride]); tmp8 = c_re(W[1]); tmp10 = c_im(W[1]); tmp12 = (tmp8 * tmp9) + (tmp10 * tmp11); tmp39 = (tmp8 * tmp11) - (tmp10 * tmp9); } { fftw_real tmp14; fftw_real tmp16; fftw_real tmp13; fftw_real tmp15; ASSERT_ALIGNED_DOUBLE; tmp14 = c_re(inout[5 * iostride]); tmp16 = c_im(inout[5 * iostride]); tmp13 = c_re(W[4]); tmp15 = c_im(W[4]); tmp17 = (tmp13 * tmp14) + (tmp15 * tmp16); tmp40 = (tmp13 * tmp16) - (tmp15 * tmp14); } tmp18 = tmp12 - tmp17; tmp32 = tmp12 + tmp17; tmp41 = tmp39 - tmp40; tmp45 = tmp39 + tmp40; } { fftw_real tmp42; fftw_real tmp30; fftw_real tmp35; fftw_real tmp53; fftw_real tmp55; fftw_real tmp56; ASSERT_ALIGNED_DOUBLE; tmp42 = K866025403 * (tmp38 - tmp41); tmp30 = tmp18 + tmp29; tmp35 = tmp7 - (K500000000 * tmp30); c_re(inout[3 * iostride]) = tmp7 + tmp30; c_re(inout[iostride]) = tmp35 + tmp42; c_re(inout[5 * iostride]) = tmp35 - tmp42; tmp53 = K866025403 * (tmp18 - tmp29); tmp55 = tmp41 + tmp38; tmp56 = tmp54 - (K500000000 * tmp55); c_im(inout[iostride]) = tmp53 + tmp56; c_im(inout[5 * iostride]) = tmp56 - tmp53; c_im(inout[3 * iostride]) = tmp55 + tmp54; } { fftw_real tmp46; fftw_real tmp34; fftw_real tmp43; fftw_real tmp52; fftw_real tmp47; fftw_real tmp51; ASSERT_ALIGNED_DOUBLE; tmp46 = K866025403 * (tmp44 - tmp45); tmp34 = tmp32 + tmp33; tmp43 = tmp31 - (K500000000 * tmp34); c_re(inout[0]) = tmp31 + tmp34; c_re(inout[4 * iostride]) = tmp43 + tmp46; c_re(inout[2 * iostride]) = tmp43 - tmp46; tmp52 = K866025403 * (tmp32 - tmp33); tmp47 = tmp45 + tmp44; tmp51 = tmp50 - (K500000000 * tmp47); c_im(inout[0]) = tmp47 + tmp50; c_im(inout[4 * iostride]) = tmp52 + tmp51; c_im(inout[2 * iostride]) = tmp51 - tmp52; } } } static const int twiddle_order[] = { 1, 2, 3, 4, 5 }; fftw_codelet_desc fftwi_twiddle_6_desc = { "fftwi_twiddle_6", (void (*)()) fftwi_twiddle_6, 6, FFTW_BACKWARD, FFTW_TWIDDLE, 143, 5, twiddle_order, };