ref: 4f9a9087f16b92662389be3dc0589629359ac8a4
dir: /libfaad/fftw/ftwi_9.c/
/*
* 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 20:44:59 EST 1999 */
#include <fftw-int.h>
#include <fftw.h>
/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -twiddleinv 9 */
/*
* This function contains 96 FP additions, 72 FP multiplications,
* (or, 60 additions, 36 multiplications, 36 fused multiply/add),
* 34 stack variables, and 36 memory accesses
*/
static const fftw_real K642787609 = FFTW_KONST(+0.642787609686539326322643409907263432907559884);
static const fftw_real K766044443 = FFTW_KONST(+0.766044443118978035202392650555416673935832457);
static const fftw_real K939692620 = FFTW_KONST(+0.939692620785908384054109277324731469936208134);
static const fftw_real K342020143 = FFTW_KONST(+0.342020143325668733044099614682259580763083368);
static const fftw_real K984807753 = FFTW_KONST(+0.984807753012208059366743024589523013670643252);
static const fftw_real K173648177 = FFTW_KONST(+0.173648177666930348851716626769314796000375677);
static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000);
static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627);
/*
* Generator Id's :
* $Id: ftwi_9.c,v 1.1 2002/04/07 21:26:05 menno Exp $
* $Id: ftwi_9.c,v 1.1 2002/04/07 21:26:05 menno Exp $
* $Id: ftwi_9.c,v 1.1 2002/04/07 21:26:05 menno Exp $
*/
void fftwi_twiddle_9(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 + 8) {
fftw_real tmp1;
fftw_real tmp99;
fftw_real tmp64;
fftw_real tmp98;
fftw_real tmp105;
fftw_real tmp104;
fftw_real tmp12;
fftw_real tmp61;
fftw_real tmp47;
fftw_real tmp78;
fftw_real tmp89;
fftw_real tmp54;
fftw_real tmp75;
fftw_real tmp90;
fftw_real tmp30;
fftw_real tmp68;
fftw_real tmp86;
fftw_real tmp59;
fftw_real tmp71;
fftw_real tmp87;
ASSERT_ALIGNED_DOUBLE;
{
fftw_real tmp6;
fftw_real tmp63;
fftw_real tmp11;
fftw_real tmp62;
ASSERT_ALIGNED_DOUBLE;
tmp1 = c_re(inout[0]);
tmp99 = c_im(inout[0]);
{
fftw_real tmp3;
fftw_real tmp5;
fftw_real tmp2;
fftw_real tmp4;
ASSERT_ALIGNED_DOUBLE;
tmp3 = c_re(inout[3 * iostride]);
tmp5 = c_im(inout[3 * iostride]);
tmp2 = c_re(W[2]);
tmp4 = c_im(W[2]);
tmp6 = (tmp2 * tmp3) + (tmp4 * tmp5);
tmp63 = (tmp2 * tmp5) - (tmp4 * tmp3);
}
{
fftw_real tmp8;
fftw_real tmp10;
fftw_real tmp7;
fftw_real tmp9;
ASSERT_ALIGNED_DOUBLE;
tmp8 = c_re(inout[6 * iostride]);
tmp10 = c_im(inout[6 * iostride]);
tmp7 = c_re(W[5]);
tmp9 = c_im(W[5]);
tmp11 = (tmp7 * tmp8) + (tmp9 * tmp10);
tmp62 = (tmp7 * tmp10) - (tmp9 * tmp8);
}
tmp64 = K866025403 * (tmp62 - tmp63);
tmp98 = tmp63 + tmp62;
tmp105 = tmp99 - (K500000000 * tmp98);
tmp104 = K866025403 * (tmp6 - tmp11);
tmp12 = tmp6 + tmp11;
tmp61 = tmp1 - (K500000000 * tmp12);
}
{
fftw_real tmp35;
fftw_real tmp50;
fftw_real tmp40;
fftw_real tmp51;
fftw_real tmp45;
fftw_real tmp52;
fftw_real tmp46;
fftw_real tmp53;
ASSERT_ALIGNED_DOUBLE;
{
fftw_real tmp32;
fftw_real tmp34;
fftw_real tmp31;
fftw_real tmp33;
ASSERT_ALIGNED_DOUBLE;
tmp32 = c_re(inout[2 * iostride]);
tmp34 = c_im(inout[2 * iostride]);
tmp31 = c_re(W[1]);
tmp33 = c_im(W[1]);
tmp35 = (tmp31 * tmp32) + (tmp33 * tmp34);
tmp50 = (tmp31 * tmp34) - (tmp33 * tmp32);
}
{
fftw_real tmp37;
fftw_real tmp39;
fftw_real tmp36;
fftw_real tmp38;
ASSERT_ALIGNED_DOUBLE;
tmp37 = c_re(inout[5 * iostride]);
tmp39 = c_im(inout[5 * iostride]);
tmp36 = c_re(W[4]);
tmp38 = c_im(W[4]);
tmp40 = (tmp36 * tmp37) + (tmp38 * tmp39);
tmp51 = (tmp36 * tmp39) - (tmp38 * tmp37);
}
{
fftw_real tmp42;
fftw_real tmp44;
fftw_real tmp41;
fftw_real tmp43;
ASSERT_ALIGNED_DOUBLE;
tmp42 = c_re(inout[8 * iostride]);
tmp44 = c_im(inout[8 * iostride]);
tmp41 = c_re(W[7]);
tmp43 = c_im(W[7]);
tmp45 = (tmp41 * tmp42) + (tmp43 * tmp44);
tmp52 = (tmp41 * tmp44) - (tmp43 * tmp42);
}
tmp46 = tmp40 + tmp45;
tmp53 = tmp51 + tmp52;
{
fftw_real tmp76;
fftw_real tmp77;
fftw_real tmp73;
fftw_real tmp74;
ASSERT_ALIGNED_DOUBLE;
tmp47 = tmp35 + tmp46;
tmp76 = tmp35 - (K500000000 * tmp46);
tmp77 = K866025403 * (tmp52 - tmp51);
tmp78 = tmp76 - tmp77;
tmp89 = tmp76 + tmp77;
tmp54 = tmp50 + tmp53;
tmp73 = tmp50 - (K500000000 * tmp53);
tmp74 = K866025403 * (tmp40 - tmp45);
tmp75 = tmp73 - tmp74;
tmp90 = tmp74 + tmp73;
}
}
{
fftw_real tmp18;
fftw_real tmp55;
fftw_real tmp23;
fftw_real tmp56;
fftw_real tmp28;
fftw_real tmp57;
fftw_real tmp29;
fftw_real tmp58;
ASSERT_ALIGNED_DOUBLE;
{
fftw_real tmp15;
fftw_real tmp17;
fftw_real tmp14;
fftw_real tmp16;
ASSERT_ALIGNED_DOUBLE;
tmp15 = c_re(inout[iostride]);
tmp17 = c_im(inout[iostride]);
tmp14 = c_re(W[0]);
tmp16 = c_im(W[0]);
tmp18 = (tmp14 * tmp15) + (tmp16 * tmp17);
tmp55 = (tmp14 * tmp17) - (tmp16 * tmp15);
}
{
fftw_real tmp20;
fftw_real tmp22;
fftw_real tmp19;
fftw_real tmp21;
ASSERT_ALIGNED_DOUBLE;
tmp20 = c_re(inout[4 * iostride]);
tmp22 = c_im(inout[4 * iostride]);
tmp19 = c_re(W[3]);
tmp21 = c_im(W[3]);
tmp23 = (tmp19 * tmp20) + (tmp21 * tmp22);
tmp56 = (tmp19 * tmp22) - (tmp21 * tmp20);
}
{
fftw_real tmp25;
fftw_real tmp27;
fftw_real tmp24;
fftw_real tmp26;
ASSERT_ALIGNED_DOUBLE;
tmp25 = c_re(inout[7 * iostride]);
tmp27 = c_im(inout[7 * iostride]);
tmp24 = c_re(W[6]);
tmp26 = c_im(W[6]);
tmp28 = (tmp24 * tmp25) + (tmp26 * tmp27);
tmp57 = (tmp24 * tmp27) - (tmp26 * tmp25);
}
tmp29 = tmp23 + tmp28;
tmp58 = tmp56 + tmp57;
{
fftw_real tmp66;
fftw_real tmp67;
fftw_real tmp69;
fftw_real tmp70;
ASSERT_ALIGNED_DOUBLE;
tmp30 = tmp18 + tmp29;
tmp66 = tmp18 - (K500000000 * tmp29);
tmp67 = K866025403 * (tmp57 - tmp56);
tmp68 = tmp66 - tmp67;
tmp86 = tmp66 + tmp67;
tmp59 = tmp55 + tmp58;
tmp69 = tmp55 - (K500000000 * tmp58);
tmp70 = K866025403 * (tmp23 - tmp28);
tmp71 = tmp69 - tmp70;
tmp87 = tmp70 + tmp69;
}
}
{
fftw_real tmp60;
fftw_real tmp13;
fftw_real tmp48;
fftw_real tmp49;
ASSERT_ALIGNED_DOUBLE;
tmp60 = K866025403 * (tmp54 - tmp59);
tmp13 = tmp1 + tmp12;
tmp48 = tmp30 + tmp47;
tmp49 = tmp13 - (K500000000 * tmp48);
c_re(inout[0]) = tmp13 + tmp48;
c_re(inout[3 * iostride]) = tmp49 + tmp60;
c_re(inout[6 * iostride]) = tmp49 - tmp60;
}
{
fftw_real tmp101;
fftw_real tmp97;
fftw_real tmp100;
fftw_real tmp102;
ASSERT_ALIGNED_DOUBLE;
tmp101 = K866025403 * (tmp30 - tmp47);
tmp97 = tmp59 + tmp54;
tmp100 = tmp98 + tmp99;
tmp102 = tmp100 - (K500000000 * tmp97);
c_im(inout[0]) = tmp97 + tmp100;
c_im(inout[6 * iostride]) = tmp102 - tmp101;
c_im(inout[3 * iostride]) = tmp101 + tmp102;
}
{
fftw_real tmp65;
fftw_real tmp110;
fftw_real tmp80;
fftw_real tmp111;
fftw_real tmp84;
fftw_real tmp109;
fftw_real tmp81;
fftw_real tmp112;
ASSERT_ALIGNED_DOUBLE;
tmp65 = tmp61 - tmp64;
tmp110 = tmp105 - tmp104;
{
fftw_real tmp72;
fftw_real tmp79;
fftw_real tmp82;
fftw_real tmp83;
ASSERT_ALIGNED_DOUBLE;
tmp72 = (K173648177 * tmp68) - (K984807753 * tmp71);
tmp79 = (K342020143 * tmp75) + (K939692620 * tmp78);
tmp80 = tmp72 - tmp79;
tmp111 = K866025403 * (tmp72 + tmp79);
tmp82 = (K342020143 * tmp78) - (K939692620 * tmp75);
tmp83 = (K173648177 * tmp71) + (K984807753 * tmp68);
tmp84 = K866025403 * (tmp82 - tmp83);
tmp109 = tmp83 + tmp82;
}
c_re(inout[2 * iostride]) = tmp65 + tmp80;
tmp81 = tmp65 - (K500000000 * tmp80);
c_re(inout[8 * iostride]) = tmp81 - tmp84;
c_re(inout[5 * iostride]) = tmp81 + tmp84;
c_im(inout[2 * iostride]) = tmp109 + tmp110;
tmp112 = tmp110 - (K500000000 * tmp109);
c_im(inout[5 * iostride]) = tmp111 + tmp112;
c_im(inout[8 * iostride]) = tmp112 - tmp111;
}
{
fftw_real tmp85;
fftw_real tmp106;
fftw_real tmp92;
fftw_real tmp107;
fftw_real tmp96;
fftw_real tmp103;
fftw_real tmp93;
fftw_real tmp108;
ASSERT_ALIGNED_DOUBLE;
tmp85 = tmp61 + tmp64;
tmp106 = tmp104 + tmp105;
{
fftw_real tmp88;
fftw_real tmp91;
fftw_real tmp94;
fftw_real tmp95;
ASSERT_ALIGNED_DOUBLE;
tmp88 = (K766044443 * tmp86) - (K642787609 * tmp87);
tmp91 = (K173648177 * tmp89) - (K984807753 * tmp90);
tmp92 = tmp88 + tmp91;
tmp107 = K866025403 * (tmp88 - tmp91);
tmp94 = (K173648177 * tmp90) + (K984807753 * tmp89);
tmp95 = (K766044443 * tmp87) + (K642787609 * tmp86);
tmp96 = K866025403 * (tmp94 - tmp95);
tmp103 = tmp95 + tmp94;
}
c_re(inout[iostride]) = tmp85 + tmp92;
tmp93 = tmp85 - (K500000000 * tmp92);
c_re(inout[7 * iostride]) = tmp93 - tmp96;
c_re(inout[4 * iostride]) = tmp93 + tmp96;
c_im(inout[iostride]) = tmp103 + tmp106;
tmp108 = tmp106 - (K500000000 * tmp103);
c_im(inout[4 * iostride]) = tmp107 + tmp108;
c_im(inout[7 * iostride]) = tmp108 - tmp107;
}
}
}
static const int twiddle_order[] =
{1, 2, 3, 4, 5, 6, 7, 8};
fftw_codelet_desc fftwi_twiddle_9_desc =
{
"fftwi_twiddle_9",
(void (*)()) fftwi_twiddle_9,
9,
FFTW_BACKWARD,
FFTW_TWIDDLE,
209,
8,
twiddle_order,
};