/* * 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 02:05:37 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 -notwiddle 2 */ /* * This function contains 4 FP additions, 0 FP multiplications, * (or, 4 additions, 0 multiplications, 0 fused multiply/add), * 4 stack variables, and 8 memory accesses */ /* * Generator Id's : * $Id: fn_2.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ * $Id: fn_2.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ * $Id: fn_2.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ */ void fftw_no_twiddle_2(const fftw_complex *input, fftw_complex *output, int istride, int ostride) { fftw_real tmp1; fftw_real tmp2; fftw_real tmp3; fftw_real tmp4; ASSERT_ALIGNED_DOUBLE; tmp1 = c_re(input[0]); tmp2 = c_re(input[istride]); c_re(output[ostride]) = tmp1 - tmp2; c_re(output[0]) = tmp1 + tmp2; tmp3 = c_im(input[0]); tmp4 = c_im(input[istride]); c_im(output[ostride]) = tmp3 - tmp4; c_im(output[0]) = tmp3 + tmp4; } fftw_codelet_desc fftw_no_twiddle_2_desc = { "fftw_no_twiddle_2", (void (*)()) fftw_no_twiddle_2, 2, FFTW_FORWARD, FFTW_NOTW, 45, 0, (const int *) 0, };