/* * 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 20:44:04 EST 1999 */ #include #include /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -notwiddleinv 5 */ /* * This function contains 32 FP additions, 12 FP multiplications, * (or, 26 additions, 6 multiplications, 6 fused multiply/add), * 16 stack variables, and 20 memory accesses */ static const fftw_real K250000000 = FFTW_KONST(+0.250000000000000000000000000000000000000000000); static const fftw_real K951056516 = FFTW_KONST(+0.951056516295153572116439333379382143405698634); static const fftw_real K587785252 = FFTW_KONST(+0.587785252292473129168705954639072768597652438); static const fftw_real K559016994 = FFTW_KONST(+0.559016994374947424102293417182819058860154590); /* * 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 fftwi_no_twiddle_5(const fftw_complex *input, fftw_complex *output, int istride, int ostride) { fftw_real tmp1; fftw_real tmp27; fftw_real tmp8; fftw_real tmp10; fftw_real tmp21; fftw_real tmp22; fftw_real tmp14; fftw_real tmp28; fftw_real tmp26; fftw_real tmp17; ASSERT_ALIGNED_DOUBLE; tmp1 = c_re(input[0]); tmp27 = c_im(input[0]); { fftw_real tmp2; fftw_real tmp3; fftw_real tmp4; fftw_real tmp5; fftw_real tmp6; fftw_real tmp7; ASSERT_ALIGNED_DOUBLE; tmp2 = c_re(input[istride]); tmp3 = c_re(input[4 * istride]); tmp4 = tmp2 + tmp3; tmp5 = c_re(input[2 * istride]); tmp6 = c_re(input[3 * istride]); tmp7 = tmp5 + tmp6; tmp8 = tmp4 + tmp7; tmp10 = K559016994 * (tmp4 - tmp7); tmp21 = tmp2 - tmp3; tmp22 = tmp5 - tmp6; } { fftw_real tmp12; fftw_real tmp13; fftw_real tmp24; fftw_real tmp15; fftw_real tmp16; fftw_real tmp25; ASSERT_ALIGNED_DOUBLE; tmp12 = c_im(input[istride]); tmp13 = c_im(input[4 * istride]); tmp24 = tmp12 + tmp13; tmp15 = c_im(input[2 * istride]); tmp16 = c_im(input[3 * istride]); tmp25 = tmp15 + tmp16; tmp14 = tmp12 - tmp13; tmp28 = tmp24 + tmp25; tmp26 = K559016994 * (tmp24 - tmp25); tmp17 = tmp15 - tmp16; } c_re(output[0]) = tmp1 + tmp8; { fftw_real tmp18; fftw_real tmp20; fftw_real tmp11; fftw_real tmp19; fftw_real tmp9; ASSERT_ALIGNED_DOUBLE; tmp18 = (K587785252 * tmp14) - (K951056516 * tmp17); tmp20 = (K951056516 * tmp14) + (K587785252 * tmp17); tmp9 = tmp1 - (K250000000 * tmp8); tmp11 = tmp9 - tmp10; tmp19 = tmp10 + tmp9; c_re(output[2 * ostride]) = tmp11 - tmp18; c_re(output[3 * ostride]) = tmp11 + tmp18; c_re(output[ostride]) = tmp19 - tmp20; c_re(output[4 * ostride]) = tmp19 + tmp20; } c_im(output[0]) = tmp27 + tmp28; { fftw_real tmp23; fftw_real tmp31; fftw_real tmp30; fftw_real tmp32; fftw_real tmp29; ASSERT_ALIGNED_DOUBLE; tmp23 = (K951056516 * tmp21) + (K587785252 * tmp22); tmp31 = (K587785252 * tmp21) - (K951056516 * tmp22); tmp29 = tmp27 - (K250000000 * tmp28); tmp30 = tmp26 + tmp29; tmp32 = tmp29 - tmp26; c_im(output[ostride]) = tmp23 + tmp30; c_im(output[4 * ostride]) = tmp30 - tmp23; c_im(output[2 * ostride]) = tmp31 + tmp32; c_im(output[3 * ostride]) = tmp32 - tmp31; } } fftw_codelet_desc fftwi_no_twiddle_5_desc = { "fftwi_no_twiddle_5", (void (*)()) fftwi_no_twiddle_5, 5, FFTW_BACKWARD, FFTW_NOTW, 122, 0, (const int *) 0, };