Rev 3 |
Go to most recent revision |
Blame |
Compare with Previous |
Last modification |
View Log
| RSS feed
/*
* 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 Tue May 18 13:55:11 EDT 1999 */
#include <fftw-int.h>
#include <fftw.h>
/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -hc2real 15 */
/*
* This function contains 64 FP additions, 31 FP multiplications,
* (or, 47 additions, 14 multiplications, 17 fused multiply/add),
* 36 stack variables, and 30 memory accesses
*/
static const fftw_real K1_118033988 = FFTW_KONST(+1.118033988749894848204586834365638117720309180);
static const fftw_real K1_902113032 = FFTW_KONST(+1.902113032590307144232878666758764286811397268);
static const fftw_real K1_175570504 = FFTW_KONST(+1.175570504584946258337411909278145537195304875);
static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000);
static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627);
static const fftw_real K2_000000000 = FFTW_KONST(+2.000000000000000000000000000000000000000000000);
static const fftw_real K1_732050807 = FFTW_KONST(+1.732050807568877293527446341505872366942805254);
/*
* Generator Id's :
* $Id: fcr_15.c,v 1.2 2003-03-24 11:14:55 pj Exp $
* $Id: fcr_15.c,v 1.2 2003-03-24 11:14:55 pj Exp $
* $Id: fcr_15.c,v 1.2 2003-03-24 11:14:55 pj Exp $
*/
void fftw_hc2real_15(const fftw_real *real_input, const fftw_real *imag_input, fftw_real *output, int real_istride, int imag_istride, int ostride)
{
fftw_real tmp3;
fftw_real tmp30;
fftw_real tmp18;
fftw_real tmp37;
fftw_real tmp61;
fftw_real tmp62;
fftw_real tmp45;
fftw_real tmp40;
fftw_real tmp23;
fftw_real tmp31;
fftw_real tmp42;
fftw_real tmp28;
fftw_real tmp32;
fftw_real tmp8;
fftw_real tmp13;
fftw_real tmp14;
ASSERT_ALIGNED_DOUBLE();
{
fftw_real tmp17;
fftw_real tmp1;
fftw_real tmp2;
fftw_real tmp15;
fftw_real tmp16;
ASSERT_ALIGNED_DOUBLE();
tmp16 = imag_input[5 * imag_istride];
tmp17 = K1_732050807 * tmp16;
tmp1 = real_input[0];
tmp2 = real_input[5 * real_istride];
tmp15 = tmp1 - tmp2;
tmp3 = tmp1 + (K2_000000000 * tmp2);
tmp30 = tmp15 - tmp17;
tmp18 = tmp15 + tmp17;
}
{
fftw_real tmp4;
fftw_real tmp39;
fftw_real tmp5;
fftw_real tmp6;
fftw_real tmp7;
fftw_real tmp22;
fftw_real tmp38;
fftw_real tmp9;
fftw_real tmp44;
fftw_real tmp10;
fftw_real tmp11;
fftw_real tmp12;
fftw_real tmp27;
fftw_real tmp43;
fftw_real tmp19;
fftw_real tmp24;
ASSERT_ALIGNED_DOUBLE();
{
fftw_real tmp20;
fftw_real tmp21;
fftw_real tmp25;
fftw_real tmp26;
ASSERT_ALIGNED_DOUBLE();
tmp4 = real_input[3 * real_istride];
tmp39 = imag_input[3 * imag_istride];
tmp5 = real_input[7 * real_istride];
tmp6 = real_input[2 * real_istride];
tmp7 = tmp5 + tmp6;
tmp20 = imag_input[7 * imag_istride];
tmp21 = imag_input[2 * imag_istride];
tmp22 = K866025403 * (tmp20 - tmp21);
tmp38 = tmp20 + tmp21;
tmp9 = real_input[6 * real_istride];
tmp44 = imag_input[6 * imag_istride];
tmp10 = real_input[4 * real_istride];
tmp11 = real_input[real_istride];
tmp12 = tmp10 + tmp11;
tmp25 = imag_input[4 * imag_istride];
tmp26 = imag_input[imag_istride];
tmp27 = K866025403 * (tmp25 + tmp26);
tmp43 = tmp25 - tmp26;
}
tmp37 = K866025403 * (tmp5 - tmp6);
tmp61 = tmp39 - tmp38;
tmp62 = tmp44 - tmp43;
tmp45 = (K500000000 * tmp43) + tmp44;
tmp40 = (K500000000 * tmp38) + tmp39;
tmp19 = tmp4 - (K500000000 * tmp7);
tmp23 = tmp19 - tmp22;
tmp31 = tmp19 + tmp22;
tmp42 = K866025403 * (tmp10 - tmp11);
tmp24 = tmp9 - (K500000000 * tmp12);
tmp28 = tmp24 - tmp27;
tmp32 = tmp24 + tmp27;
tmp8 = tmp4 + tmp7;
tmp13 = tmp9 + tmp12;
tmp14 = tmp8 + tmp13;
}
output[0] = tmp3 + (K2_000000000 * tmp14);
{
fftw_real tmp63;
fftw_real tmp65;
fftw_real tmp60;
fftw_real tmp64;
fftw_real tmp58;
fftw_real tmp59;
ASSERT_ALIGNED_DOUBLE();
tmp63 = (K1_175570504 * tmp61) - (K1_902113032 * tmp62);
tmp65 = (K1_902113032 * tmp61) + (K1_175570504 * tmp62);
tmp58 = tmp3 - (K500000000 * tmp14);
tmp59 = K1_118033988 * (tmp8 - tmp13);
tmp60 = tmp58 - tmp59;
tmp64 = tmp59 + tmp58;
output[12 * ostride] = tmp60 - tmp63;
output[3 * ostride] = tmp60 + tmp63;
output[6 * ostride] = tmp64 - tmp65;
output[9 * ostride] = tmp64 + tmp65;
}
{
fftw_real tmp51;
fftw_real tmp29;
fftw_real tmp50;
fftw_real tmp55;
fftw_real tmp57;
fftw_real tmp53;
fftw_real tmp54;
fftw_real tmp56;
fftw_real tmp52;
ASSERT_ALIGNED_DOUBLE();
tmp51 = K1_118033988 * (tmp23 - tmp28);
tmp29 = tmp23 + tmp28;
tmp50 = tmp18 - (K500000000 * tmp29);
tmp53 = tmp40 - tmp37;
tmp54 = tmp45 - tmp42;
tmp55 = (K1_175570504 * tmp53) - (K1_902113032 * tmp54);
tmp57 = (K1_902113032 * tmp53) + (K1_175570504 * tmp54);
output[5 * ostride] = tmp18 + (K2_000000000 * tmp29);
tmp56 = tmp51 + tmp50;
output[11 * ostride] = tmp56 - tmp57;
output[14 * ostride] = tmp56 + tmp57;
tmp52 = tmp50 - tmp51;
output[2 * ostride] = tmp52 - tmp55;
output[8 * ostride] = tmp52 + tmp55;
}
{
fftw_real tmp35;
fftw_real tmp33;
fftw_real tmp34;
fftw_real tmp47;
fftw_real tmp49;
fftw_real tmp41;
fftw_real tmp46;
fftw_real tmp48;
fftw_real tmp36;
ASSERT_ALIGNED_DOUBLE();
tmp35 = K1_118033988 * (tmp31 - tmp32);
tmp33 = tmp31 + tmp32;
tmp34 = tmp30 - (K500000000 * tmp33);
tmp41 = tmp37 + tmp40;
tmp46 = tmp42 + tmp45;
tmp47 = (K1_175570504 * tmp41) - (K1_902113032 * tmp46);
tmp49 = (K1_902113032 * tmp41) + (K1_175570504 * tmp46);
output[10 * ostride] = tmp30 + (K2_000000000 * tmp33);
tmp48 = tmp35 + tmp34;
output[ostride] = tmp48 - tmp49;
output[4 * ostride] = tmp48 + tmp49;
tmp36 = tmp34 - tmp35;
output[7 * ostride] = tmp36 - tmp47;
output[13 * ostride] = tmp36 + tmp47;
}
}
fftw_codelet_desc fftw_hc2real_15_desc =
{
"fftw_hc2real_15",
(void (*)()) fftw_hc2real_15,
15,
FFTW_BACKWARD,
FFTW_HC2REAL,
345,
0,
(const int *) 0,
};