/* * 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 20:44:31 EST 1999 */ #include #include /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -twiddle 5 */ /* * This function contains 40 FP additions, 28 FP multiplications, * (or, 26 additions, 14 multiplications, 14 fused multiply/add), * 26 stack variables, and 20 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_twiddle_5(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 + 4) { fftw_real tmp1; fftw_real tmp40; fftw_real tmp30; fftw_real tmp33; fftw_real tmp37; fftw_real tmp38; fftw_real tmp39; fftw_real tmp45; fftw_real tmp44; fftw_real tmp12; fftw_real tmp23; fftw_real tmp24; ASSERT_ALIGNED_DOUBLE; tmp1 = c_re(inout[0]); tmp40 = c_im(inout[0]); { fftw_real tmp6; fftw_real tmp28; fftw_real tmp22; fftw_real tmp32; fftw_real tmp11; fftw_real tmp29; fftw_real tmp17; fftw_real tmp31; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp3; fftw_real tmp5; fftw_real tmp2; fftw_real tmp4; ASSERT_ALIGNED_DOUBLE; tmp3 = c_re(inout[iostride]); tmp5 = c_im(inout[iostride]); tmp2 = c_re(W[0]); tmp4 = c_im(W[0]); tmp6 = (tmp2 * tmp3) - (tmp4 * tmp5); tmp28 = (tmp4 * tmp3) + (tmp2 * tmp5); } { fftw_real tmp19; fftw_real tmp21; fftw_real tmp18; fftw_real tmp20; ASSERT_ALIGNED_DOUBLE; tmp19 = c_re(inout[3 * iostride]); tmp21 = c_im(inout[3 * iostride]); tmp18 = c_re(W[2]); tmp20 = c_im(W[2]); tmp22 = (tmp18 * tmp19) - (tmp20 * tmp21); tmp32 = (tmp20 * tmp19) + (tmp18 * tmp21); } { fftw_real tmp8; fftw_real tmp10; fftw_real tmp7; fftw_real tmp9; ASSERT_ALIGNED_DOUBLE; tmp8 = c_re(inout[4 * iostride]); tmp10 = c_im(inout[4 * iostride]); tmp7 = c_re(W[3]); tmp9 = c_im(W[3]); tmp11 = (tmp7 * tmp8) - (tmp9 * tmp10); tmp29 = (tmp9 * tmp8) + (tmp7 * tmp10); } { fftw_real tmp14; fftw_real tmp16; fftw_real tmp13; fftw_real tmp15; ASSERT_ALIGNED_DOUBLE; tmp14 = c_re(inout[2 * iostride]); tmp16 = c_im(inout[2 * iostride]); tmp13 = c_re(W[1]); tmp15 = c_im(W[1]); tmp17 = (tmp13 * tmp14) - (tmp15 * tmp16); tmp31 = (tmp15 * tmp14) + (tmp13 * tmp16); } tmp30 = tmp28 - tmp29; tmp33 = tmp31 - tmp32; tmp37 = tmp28 + tmp29; tmp38 = tmp31 + tmp32; tmp39 = tmp37 + tmp38; tmp45 = tmp17 - tmp22; tmp44 = tmp6 - tmp11; tmp12 = tmp6 + tmp11; tmp23 = tmp17 + tmp22; tmp24 = tmp12 + tmp23; } c_re(inout[0]) = tmp1 + tmp24; { fftw_real tmp34; fftw_real tmp36; fftw_real tmp27; fftw_real tmp35; fftw_real tmp25; fftw_real tmp26; ASSERT_ALIGNED_DOUBLE; tmp34 = (K951056516 * tmp30) + (K587785252 * tmp33); tmp36 = (K951056516 * tmp33) - (K587785252 * tmp30); tmp25 = K559016994 * (tmp12 - tmp23); tmp26 = tmp1 - (K250000000 * tmp24); tmp27 = tmp25 + tmp26; tmp35 = tmp26 - tmp25; c_re(inout[4 * iostride]) = tmp27 - tmp34; c_re(inout[iostride]) = tmp27 + tmp34; c_re(inout[2 * iostride]) = tmp35 - tmp36; c_re(inout[3 * iostride]) = tmp35 + tmp36; } c_im(inout[0]) = tmp39 + tmp40; { fftw_real tmp46; fftw_real tmp47; fftw_real tmp43; fftw_real tmp48; fftw_real tmp41; fftw_real tmp42; ASSERT_ALIGNED_DOUBLE; tmp46 = (K951056516 * tmp44) + (K587785252 * tmp45); tmp47 = (K951056516 * tmp45) - (K587785252 * tmp44); tmp41 = K559016994 * (tmp37 - tmp38); tmp42 = tmp40 - (K250000000 * tmp39); tmp43 = tmp41 + tmp42; tmp48 = tmp42 - tmp41; c_im(inout[iostride]) = tmp43 - tmp46; c_im(inout[4 * iostride]) = tmp46 + tmp43; c_im(inout[2 * iostride]) = tmp47 + tmp48; c_im(inout[3 * iostride]) = tmp48 - tmp47; } } } static const int twiddle_order[] = {1, 2, 3, 4}; fftw_codelet_desc fftw_twiddle_5_desc = { "fftw_twiddle_5", (void (*)()) fftw_twiddle_5, 5, FFTW_FORWARD, FFTW_TWIDDLE, 110, 4, twiddle_order, };