ref: 4f9a9087f16b92662389be3dc0589629359ac8a4
dir: /libfaad/fftw/fni_12.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 20:44:09 EST 1999 */
#include <fftw-int.h>
#include <fftw.h>
/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -notwiddleinv 12 */
/*
* This function contains 96 FP additions, 16 FP multiplications,
* (or, 88 additions, 8 multiplications, 8 fused multiply/add),
* 40 stack variables, and 48 memory accesses
*/
static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627);
static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000);
/*
* Generator Id's :
* $Id: fni_12.c,v 1.1 2002/04/07 21:26:04 menno Exp $
* $Id: fni_12.c,v 1.1 2002/04/07 21:26:04 menno Exp $
* $Id: fni_12.c,v 1.1 2002/04/07 21:26:04 menno Exp $
*/
void fftwi_no_twiddle_12(const fftw_complex *input, fftw_complex *output, int istride, int ostride)
{
fftw_real tmp5;
fftw_real tmp35;
fftw_real tmp57;
fftw_real tmp27;
fftw_real tmp58;
fftw_real tmp36;
fftw_real tmp10;
fftw_real tmp38;
fftw_real tmp60;
fftw_real tmp32;
fftw_real tmp61;
fftw_real tmp39;
fftw_real tmp16;
fftw_real tmp82;
fftw_real tmp42;
fftw_real tmp47;
fftw_real tmp76;
fftw_real tmp83;
fftw_real tmp21;
fftw_real tmp85;
fftw_real tmp49;
fftw_real tmp54;
fftw_real tmp77;
fftw_real tmp86;
ASSERT_ALIGNED_DOUBLE;
{
fftw_real tmp1;
fftw_real tmp2;
fftw_real tmp3;
fftw_real tmp4;
ASSERT_ALIGNED_DOUBLE;
tmp1 = c_re(input[0]);
tmp2 = c_re(input[4 * istride]);
tmp3 = c_re(input[8 * istride]);
tmp4 = tmp2 + tmp3;
tmp5 = tmp1 + tmp4;
tmp35 = tmp1 - (K500000000 * tmp4);
tmp57 = K866025403 * (tmp2 - tmp3);
}
{
fftw_real tmp23;
fftw_real tmp24;
fftw_real tmp25;
fftw_real tmp26;
ASSERT_ALIGNED_DOUBLE;
tmp23 = c_im(input[0]);
tmp24 = c_im(input[4 * istride]);
tmp25 = c_im(input[8 * istride]);
tmp26 = tmp24 + tmp25;
tmp27 = tmp23 + tmp26;
tmp58 = tmp23 - (K500000000 * tmp26);
tmp36 = K866025403 * (tmp25 - tmp24);
}
{
fftw_real tmp6;
fftw_real tmp7;
fftw_real tmp8;
fftw_real tmp9;
ASSERT_ALIGNED_DOUBLE;
tmp6 = c_re(input[6 * istride]);
tmp7 = c_re(input[10 * istride]);
tmp8 = c_re(input[2 * istride]);
tmp9 = tmp7 + tmp8;
tmp10 = tmp6 + tmp9;
tmp38 = tmp6 - (K500000000 * tmp9);
tmp60 = K866025403 * (tmp7 - tmp8);
}
{
fftw_real tmp28;
fftw_real tmp29;
fftw_real tmp30;
fftw_real tmp31;
ASSERT_ALIGNED_DOUBLE;
tmp28 = c_im(input[6 * istride]);
tmp29 = c_im(input[10 * istride]);
tmp30 = c_im(input[2 * istride]);
tmp31 = tmp29 + tmp30;
tmp32 = tmp28 + tmp31;
tmp61 = tmp28 - (K500000000 * tmp31);
tmp39 = K866025403 * (tmp30 - tmp29);
}
{
fftw_real tmp12;
fftw_real tmp13;
fftw_real tmp14;
fftw_real tmp15;
ASSERT_ALIGNED_DOUBLE;
tmp12 = c_re(input[3 * istride]);
tmp13 = c_re(input[7 * istride]);
tmp14 = c_re(input[11 * istride]);
tmp15 = tmp13 + tmp14;
tmp16 = tmp12 + tmp15;
tmp82 = tmp12 - (K500000000 * tmp15);
tmp42 = K866025403 * (tmp13 - tmp14);
}
{
fftw_real tmp43;
fftw_real tmp44;
fftw_real tmp45;
fftw_real tmp46;
ASSERT_ALIGNED_DOUBLE;
tmp43 = c_im(input[3 * istride]);
tmp44 = c_im(input[7 * istride]);
tmp45 = c_im(input[11 * istride]);
tmp46 = tmp44 + tmp45;
tmp47 = tmp43 - (K500000000 * tmp46);
tmp76 = tmp43 + tmp46;
tmp83 = K866025403 * (tmp45 - tmp44);
}
{
fftw_real tmp17;
fftw_real tmp18;
fftw_real tmp19;
fftw_real tmp20;
ASSERT_ALIGNED_DOUBLE;
tmp17 = c_re(input[9 * istride]);
tmp18 = c_re(input[istride]);
tmp19 = c_re(input[5 * istride]);
tmp20 = tmp18 + tmp19;
tmp21 = tmp17 + tmp20;
tmp85 = tmp17 - (K500000000 * tmp20);
tmp49 = K866025403 * (tmp18 - tmp19);
}
{
fftw_real tmp50;
fftw_real tmp51;
fftw_real tmp52;
fftw_real tmp53;
ASSERT_ALIGNED_DOUBLE;
tmp50 = c_im(input[9 * istride]);
tmp51 = c_im(input[istride]);
tmp52 = c_im(input[5 * istride]);
tmp53 = tmp51 + tmp52;
tmp54 = tmp50 - (K500000000 * tmp53);
tmp77 = tmp50 + tmp53;
tmp86 = K866025403 * (tmp52 - tmp51);
}
{
fftw_real tmp11;
fftw_real tmp22;
fftw_real tmp33;
fftw_real tmp34;
ASSERT_ALIGNED_DOUBLE;
tmp11 = tmp5 + tmp10;
tmp22 = tmp16 + tmp21;
c_re(output[6 * ostride]) = tmp11 - tmp22;
c_re(output[0]) = tmp11 + tmp22;
{
fftw_real tmp75;
fftw_real tmp78;
fftw_real tmp79;
fftw_real tmp80;
ASSERT_ALIGNED_DOUBLE;
tmp75 = tmp5 - tmp10;
tmp78 = tmp76 - tmp77;
c_re(output[9 * ostride]) = tmp75 - tmp78;
c_re(output[3 * ostride]) = tmp75 + tmp78;
tmp79 = tmp27 + tmp32;
tmp80 = tmp76 + tmp77;
c_im(output[6 * ostride]) = tmp79 - tmp80;
c_im(output[0]) = tmp79 + tmp80;
}
tmp33 = tmp27 - tmp32;
tmp34 = tmp16 - tmp21;
c_im(output[3 * ostride]) = tmp33 - tmp34;
c_im(output[9 * ostride]) = tmp34 + tmp33;
{
fftw_real tmp67;
fftw_real tmp89;
fftw_real tmp88;
fftw_real tmp90;
fftw_real tmp70;
fftw_real tmp74;
fftw_real tmp73;
fftw_real tmp81;
ASSERT_ALIGNED_DOUBLE;
{
fftw_real tmp65;
fftw_real tmp66;
fftw_real tmp84;
fftw_real tmp87;
ASSERT_ALIGNED_DOUBLE;
tmp65 = tmp35 - tmp36;
tmp66 = tmp38 - tmp39;
tmp67 = tmp65 - tmp66;
tmp89 = tmp65 + tmp66;
tmp84 = tmp82 - tmp83;
tmp87 = tmp85 - tmp86;
tmp88 = tmp84 - tmp87;
tmp90 = tmp84 + tmp87;
}
{
fftw_real tmp68;
fftw_real tmp69;
fftw_real tmp71;
fftw_real tmp72;
ASSERT_ALIGNED_DOUBLE;
tmp68 = tmp47 - tmp42;
tmp69 = tmp54 - tmp49;
tmp70 = tmp68 - tmp69;
tmp74 = tmp68 + tmp69;
tmp71 = tmp58 - tmp57;
tmp72 = tmp61 - tmp60;
tmp73 = tmp71 + tmp72;
tmp81 = tmp71 - tmp72;
}
c_re(output[5 * ostride]) = tmp67 - tmp70;
c_re(output[11 * ostride]) = tmp67 + tmp70;
c_im(output[2 * ostride]) = tmp73 - tmp74;
c_im(output[8 * ostride]) = tmp73 + tmp74;
c_im(output[11 * ostride]) = tmp81 - tmp88;
c_im(output[5 * ostride]) = tmp81 + tmp88;
c_re(output[2 * ostride]) = tmp89 - tmp90;
c_re(output[8 * ostride]) = tmp89 + tmp90;
}
{
fftw_real tmp41;
fftw_real tmp95;
fftw_real tmp94;
fftw_real tmp96;
fftw_real tmp56;
fftw_real tmp64;
fftw_real tmp63;
fftw_real tmp91;
ASSERT_ALIGNED_DOUBLE;
{
fftw_real tmp37;
fftw_real tmp40;
fftw_real tmp92;
fftw_real tmp93;
ASSERT_ALIGNED_DOUBLE;
tmp37 = tmp35 + tmp36;
tmp40 = tmp38 + tmp39;
tmp41 = tmp37 - tmp40;
tmp95 = tmp37 + tmp40;
tmp92 = tmp82 + tmp83;
tmp93 = tmp85 + tmp86;
tmp94 = tmp92 - tmp93;
tmp96 = tmp92 + tmp93;
}
{
fftw_real tmp48;
fftw_real tmp55;
fftw_real tmp59;
fftw_real tmp62;
ASSERT_ALIGNED_DOUBLE;
tmp48 = tmp42 + tmp47;
tmp55 = tmp49 + tmp54;
tmp56 = tmp48 - tmp55;
tmp64 = tmp48 + tmp55;
tmp59 = tmp57 + tmp58;
tmp62 = tmp60 + tmp61;
tmp63 = tmp59 + tmp62;
tmp91 = tmp59 - tmp62;
}
c_re(output[ostride]) = tmp41 - tmp56;
c_re(output[7 * ostride]) = tmp41 + tmp56;
c_im(output[10 * ostride]) = tmp63 - tmp64;
c_im(output[4 * ostride]) = tmp63 + tmp64;
c_im(output[7 * ostride]) = tmp91 - tmp94;
c_im(output[ostride]) = tmp91 + tmp94;
c_re(output[10 * ostride]) = tmp95 - tmp96;
c_re(output[4 * ostride]) = tmp95 + tmp96;
}
}
}
fftw_codelet_desc fftwi_no_twiddle_12_desc =
{
"fftwi_no_twiddle_12",
(void (*)()) fftwi_no_twiddle_12,
12,
FFTW_BACKWARD,
FFTW_NOTW,
276,
0,
(const int *) 0,
};