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2 pj 1
/*
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 * Copyright (c) 1997-1999 Massachusetts Institute of Technology
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 *
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 */
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/* This file was automatically generated --- DO NOT EDIT */
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/* Generated on Tue May 18 13:54:27 EDT 1999 */
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107 pj 23
#include <fftw-int.h>
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#include <fftw.h>
2 pj 25
 
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/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -notwiddle 4 */
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/*
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 * This function contains 16 FP additions, 0 FP multiplications,
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 * (or, 16 additions, 0 multiplications, 0 fused multiply/add),
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 * 12 stack variables, and 16 memory accesses
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 */
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/*
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 * Generator Id's :
107 pj 36
 * $Id: fn_4.c,v 1.2 2003-03-24 11:14:50 pj Exp $
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 * $Id: fn_4.c,v 1.2 2003-03-24 11:14:50 pj Exp $
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 * $Id: fn_4.c,v 1.2 2003-03-24 11:14:50 pj Exp $
2 pj 39
 */
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void fftw_no_twiddle_4(const fftw_complex *input, fftw_complex *output, int istride, int ostride)
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{
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     fftw_real tmp3;
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     fftw_real tmp11;
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     fftw_real tmp9;
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     fftw_real tmp15;
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     fftw_real tmp6;
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     fftw_real tmp10;
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     fftw_real tmp14;
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     fftw_real tmp16;
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     ASSERT_ALIGNED_DOUBLE();
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     {
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          fftw_real tmp1;
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          fftw_real tmp2;
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          fftw_real tmp7;
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          fftw_real tmp8;
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          ASSERT_ALIGNED_DOUBLE();
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          tmp1 = c_re(input[0]);
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          tmp2 = c_re(input[2 * istride]);
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          tmp3 = tmp1 + tmp2;
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          tmp11 = tmp1 - tmp2;
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          tmp7 = c_im(input[0]);
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          tmp8 = c_im(input[2 * istride]);
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          tmp9 = tmp7 - tmp8;
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          tmp15 = tmp7 + tmp8;
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     }
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     {
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          fftw_real tmp4;
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          fftw_real tmp5;
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          fftw_real tmp12;
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          fftw_real tmp13;
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          ASSERT_ALIGNED_DOUBLE();
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          tmp4 = c_re(input[istride]);
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          tmp5 = c_re(input[3 * istride]);
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          tmp6 = tmp4 + tmp5;
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          tmp10 = tmp4 - tmp5;
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          tmp12 = c_im(input[istride]);
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          tmp13 = c_im(input[3 * istride]);
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          tmp14 = tmp12 - tmp13;
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          tmp16 = tmp12 + tmp13;
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     }
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     c_re(output[2 * ostride]) = tmp3 - tmp6;
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     c_re(output[0]) = tmp3 + tmp6;
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     c_im(output[ostride]) = tmp9 - tmp10;
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     c_im(output[3 * ostride]) = tmp10 + tmp9;
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     c_re(output[3 * ostride]) = tmp11 - tmp14;
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     c_re(output[ostride]) = tmp11 + tmp14;
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     c_im(output[2 * ostride]) = tmp15 - tmp16;
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     c_im(output[0]) = tmp15 + tmp16;
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}
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fftw_codelet_desc fftw_no_twiddle_4_desc =
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{
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     "fftw_no_twiddle_4",
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     (void (*)()) fftw_no_twiddle_4,
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     4,
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     FFTW_FORWARD,
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     FFTW_NOTW,
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     89,
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     0,
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     (const int *) 0,
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};