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/*
* 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 13:55:34 EDT 1999 */
#include <ports/fftw-int.h>
#include <ports/fftw.h>
/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -hc2hc-forward 8 */
/*
* This function contains 108 FP additions, 44 FP multiplications,
* (or, 90 additions, 26 multiplications, 18 fused multiply/add),
* 29 stack variables, and 64 memory accesses
*/
static const fftw_real K382683432 = FFTW_KONST(+0.382683432365089771728459984030398866761344562);
static const fftw_real K923879532 = FFTW_KONST(+0.923879532511286756128183189396788286822416626);
static const fftw_real K707106781 = FFTW_KONST(+0.707106781186547524400844362104849039284835938);
/*
* Generator Id's :
* $Id: fhf_8.c,v 1.1.1.1 2002-03-29 14:12:58 pj Exp $
* $Id: fhf_8.c,v 1.1.1.1 2002-03-29 14:12:58 pj Exp $
* $Id: fhf_8.c,v 1.1.1.1 2002-03-29 14:12:58 pj Exp $
*/
void fftw_hc2hc_forward_8(fftw_real *A, const fftw_complex *W, int iostride, int m, int dist)
{
int i;
fftw_real *X;
fftw_real *Y;
X = A;
Y = A + (8 * iostride);
{
fftw_real tmp105;
fftw_real tmp109;
fftw_real tmp115;
fftw_real tmp121;
fftw_real tmp108;
fftw_real tmp118;
fftw_real tmp112;
fftw_real tmp120;
ASSERT_ALIGNED_DOUBLE();
{
fftw_real tmp103;
fftw_real tmp104;
fftw_real tmp113;
fftw_real tmp114;
ASSERT_ALIGNED_DOUBLE();
tmp103 = X[0];
tmp104 = X[4 * iostride];
tmp105 = tmp103 + tmp104;
tmp109 = tmp103 - tmp104;
tmp113 = X[7 * iostride];
tmp114 = X[3 * iostride];
tmp115 = tmp113 - tmp114;
tmp121 = tmp113 + tmp114;
}
{
fftw_real tmp106;
fftw_real tmp107;
fftw_real tmp110;
fftw_real tmp111;
ASSERT_ALIGNED_DOUBLE();
tmp106 = X[2 * iostride];
tmp107 = X[6 * iostride];
tmp108 = tmp106 + tmp107;
tmp118 = tmp106 - tmp107;
tmp110 = X[iostride];
tmp111 = X[5 * iostride];
tmp112 = tmp110 - tmp111;
tmp120 = tmp110 + tmp111;
}
{
fftw_real tmp119;
fftw_real tmp122;
fftw_real tmp116;
fftw_real tmp117;
ASSERT_ALIGNED_DOUBLE();
X[2 * iostride] = tmp105 - tmp108;
tmp119 = tmp105 + tmp108;
tmp122 = tmp120 + tmp121;
X[4 * iostride] = tmp119 - tmp122;
X[0] = tmp119 + tmp122;
Y[-2 * iostride] = tmp121 - tmp120;
tmp116 = K707106781 * (tmp112 + tmp115);
X[3 * iostride] = tmp109 - tmp116;
X[iostride] = tmp109 + tmp116;
tmp117 = K707106781 * (tmp115 - tmp112);
Y[-iostride] = tmp117 - tmp118;
Y[-3 * iostride] = tmp118 + tmp117;
}
}
X = X + dist;
Y = Y - dist;
for (i = 2; i < m; i = i + 2, X = X + dist, Y = Y - dist, W = W + 7) {
fftw_real tmp29;
fftw_real tmp65;
fftw_real tmp92;
fftw_real tmp97;
fftw_real tmp63;
fftw_real tmp75;
fftw_real tmp78;
fftw_real tmp87;
fftw_real tmp40;
fftw_real tmp98;
fftw_real tmp68;
fftw_real tmp89;
fftw_real tmp52;
fftw_real tmp70;
fftw_real tmp73;
fftw_real tmp86;
ASSERT_ALIGNED_DOUBLE();
{
fftw_real tmp23;
fftw_real tmp91;
fftw_real tmp28;
fftw_real tmp90;
ASSERT_ALIGNED_DOUBLE();
tmp23 = X[0];
tmp91 = Y[-7 * iostride];
{
fftw_real tmp25;
fftw_real tmp27;
fftw_real tmp24;
fftw_real tmp26;
ASSERT_ALIGNED_DOUBLE();
tmp25 = X[4 * iostride];
tmp27 = Y[-3 * iostride];
tmp24 = c_re(W[3]);
tmp26 = c_im(W[3]);
tmp28 = (tmp24 * tmp25) - (tmp26 * tmp27);
tmp90 = (tmp26 * tmp25) + (tmp24 * tmp27);
}
tmp29 = tmp23 + tmp28;
tmp65 = tmp23 - tmp28;
tmp92 = tmp90 + tmp91;
tmp97 = tmp91 - tmp90;
}
{
fftw_real tmp57;
fftw_real tmp76;
fftw_real tmp62;
fftw_real tmp77;
ASSERT_ALIGNED_DOUBLE();
{
fftw_real tmp54;
fftw_real tmp56;
fftw_real tmp53;
fftw_real tmp55;
ASSERT_ALIGNED_DOUBLE();
tmp54 = X[7 * iostride];
tmp56 = Y[0];
tmp53 = c_re(W[6]);
tmp55 = c_im(W[6]);
tmp57 = (tmp53 * tmp54) - (tmp55 * tmp56);
tmp76 = (tmp55 * tmp54) + (tmp53 * tmp56);
}
{
fftw_real tmp59;
fftw_real tmp61;
fftw_real tmp58;
fftw_real tmp60;
ASSERT_ALIGNED_DOUBLE();
tmp59 = X[3 * iostride];
tmp61 = Y[-4 * iostride];
tmp58 = c_re(W[2]);
tmp60 = c_im(W[2]);
tmp62 = (tmp58 * tmp59) - (tmp60 * tmp61);
tmp77 = (tmp60 * tmp59) + (tmp58 * tmp61);
}
tmp63 = tmp57 + tmp62;
tmp75 = tmp57 - tmp62;
tmp78 = tmp76 - tmp77;
tmp87 = tmp76 + tmp77;
}
{
fftw_real tmp34;
fftw_real tmp66;
fftw_real tmp39;
fftw_real tmp67;
ASSERT_ALIGNED_DOUBLE();
{
fftw_real tmp31;
fftw_real tmp33;
fftw_real tmp30;
fftw_real tmp32;
ASSERT_ALIGNED_DOUBLE();
tmp31 = X[2 * iostride];
tmp33 = Y[-5 * iostride];
tmp30 = c_re(W[1]);
tmp32 = c_im(W[1]);
tmp34 = (tmp30 * tmp31) - (tmp32 * tmp33);
tmp66 = (tmp32 * tmp31) + (tmp30 * tmp33);
}
{
fftw_real tmp36;
fftw_real tmp38;
fftw_real tmp35;
fftw_real tmp37;
ASSERT_ALIGNED_DOUBLE();
tmp36 = X[6 * iostride];
tmp38 = Y[-iostride];
tmp35 = c_re(W[5]);
tmp37 = c_im(W[5]);
tmp39 = (tmp35 * tmp36) - (tmp37 * tmp38);
tmp67 = (tmp37 * tmp36) + (tmp35 * tmp38);
}
tmp40 = tmp34 + tmp39;
tmp98 = tmp34 - tmp39;
tmp68 = tmp66 - tmp67;
tmp89 = tmp66 + tmp67;
}
{
fftw_real tmp46;
fftw_real tmp71;
fftw_real tmp51;
fftw_real tmp72;
ASSERT_ALIGNED_DOUBLE();
{
fftw_real tmp43;
fftw_real tmp45;
fftw_real tmp42;
fftw_real tmp44;
ASSERT_ALIGNED_DOUBLE();
tmp43 = X[iostride];
tmp45 = Y[-6 * iostride];
tmp42 = c_re(W[0]);
tmp44 = c_im(W[0]);
tmp46 = (tmp42 * tmp43) - (tmp44 * tmp45);
tmp71 = (tmp44 * tmp43) + (tmp42 * tmp45);
}
{
fftw_real tmp48;
fftw_real tmp50;
fftw_real tmp47;
fftw_real tmp49;
ASSERT_ALIGNED_DOUBLE();
tmp48 = X[5 * iostride];
tmp50 = Y[-2 * iostride];
tmp47 = c_re(W[4]);
tmp49 = c_im(W[4]);
tmp51 = (tmp47 * tmp48) - (tmp49 * tmp50);
tmp72 = (tmp49 * tmp48) + (tmp47 * tmp50);
}
tmp52 = tmp46 + tmp51;
tmp70 = tmp46 - tmp51;
tmp73 = tmp71 - tmp72;
tmp86 = tmp71 + tmp72;
}
{
fftw_real tmp41;
fftw_real tmp64;
fftw_real tmp85;
fftw_real tmp88;
ASSERT_ALIGNED_DOUBLE();
tmp41 = tmp29 + tmp40;
tmp64 = tmp52 + tmp63;
Y[-4 * iostride] = tmp41 - tmp64;
X[0] = tmp41 + tmp64;
{
fftw_real tmp95;
fftw_real tmp96;
fftw_real tmp93;
fftw_real tmp94;
ASSERT_ALIGNED_DOUBLE();
tmp95 = tmp92 - tmp89;
tmp96 = tmp63 - tmp52;
X[6 * iostride] = -(tmp95 - tmp96);
Y[-2 * iostride] = tmp96 + tmp95;
tmp93 = tmp89 + tmp92;
tmp94 = tmp86 + tmp87;
X[4 * iostride] = -(tmp93 - tmp94);
Y[0] = tmp94 + tmp93;
}
tmp85 = tmp29 - tmp40;
tmp88 = tmp86 - tmp87;
Y[-6 * iostride] = tmp85 - tmp88;
X[2 * iostride] = tmp85 + tmp88;
{
fftw_real tmp81;
fftw_real tmp99;
fftw_real tmp84;
fftw_real tmp100;
fftw_real tmp82;
fftw_real tmp83;
ASSERT_ALIGNED_DOUBLE();
tmp81 = tmp65 - tmp68;
tmp99 = tmp97 - tmp98;
tmp82 = tmp73 - tmp70;
tmp83 = tmp75 + tmp78;
tmp84 = K707106781 * (tmp82 - tmp83);
tmp100 = K707106781 * (tmp82 + tmp83);
Y[-7 * iostride] = tmp81 - tmp84;
X[3 * iostride] = tmp81 + tmp84;
X[5 * iostride] = -(tmp99 - tmp100);
Y[-iostride] = tmp100 + tmp99;
}
{
fftw_real tmp69;
fftw_real tmp101;
fftw_real tmp80;
fftw_real tmp102;
fftw_real tmp74;
fftw_real tmp79;
ASSERT_ALIGNED_DOUBLE();
tmp69 = tmp65 + tmp68;
tmp101 = tmp98 + tmp97;
tmp74 = tmp70 + tmp73;
tmp79 = tmp75 - tmp78;
tmp80 = K707106781 * (tmp74 + tmp79);
tmp102 = K707106781 * (tmp79 - tmp74);
Y[-5 * iostride] = tmp69 - tmp80;
X[iostride] = tmp69 + tmp80;
X[7 * iostride] = -(tmp101 - tmp102);
Y[-3 * iostride] = tmp102 + tmp101;
}
}
}
if (i == m) {
fftw_real tmp1;
fftw_real tmp19;
fftw_real tmp4;
fftw_real tmp18;
fftw_real tmp8;
fftw_real tmp14;
fftw_real tmp11;
fftw_real tmp15;
fftw_real tmp2;
fftw_real tmp3;
ASSERT_ALIGNED_DOUBLE();
tmp1 = X[0];
tmp19 = X[4 * iostride];
tmp2 = X[2 * iostride];
tmp3 = X[6 * iostride];
tmp4 = K707106781 * (tmp2 - tmp3);
tmp18 = K707106781 * (tmp2 + tmp3);
{
fftw_real tmp6;
fftw_real tmp7;
fftw_real tmp9;
fftw_real tmp10;
ASSERT_ALIGNED_DOUBLE();
tmp6 = X[iostride];
tmp7 = X[5 * iostride];
tmp8 = (K923879532 * tmp6) - (K382683432 * tmp7);
tmp14 = (K382683432 * tmp6) + (K923879532 * tmp7);
tmp9 = X[3 * iostride];
tmp10 = X[7 * iostride];
tmp11 = (K382683432 * tmp9) - (K923879532 * tmp10);
tmp15 = (K923879532 * tmp9) + (K382683432 * tmp10);
}
{
fftw_real tmp5;
fftw_real tmp12;
fftw_real tmp21;
fftw_real tmp22;
ASSERT_ALIGNED_DOUBLE();
tmp5 = tmp1 + tmp4;
tmp12 = tmp8 + tmp11;
X[3 * iostride] = tmp5 - tmp12;
X[0] = tmp5 + tmp12;
tmp21 = tmp11 - tmp8;
tmp22 = tmp19 - tmp18;
Y[-2 * iostride] = tmp21 - tmp22;
Y[-iostride] = tmp21 + tmp22;
}
{
fftw_real tmp17;
fftw_real tmp20;
fftw_real tmp13;
fftw_real tmp16;
ASSERT_ALIGNED_DOUBLE();
tmp17 = tmp14 + tmp15;
tmp20 = tmp18 + tmp19;
Y[0] = -(tmp17 + tmp20);
Y[-3 * iostride] = tmp20 - tmp17;
tmp13 = tmp1 - tmp4;
tmp16 = tmp14 - tmp15;
X[2 * iostride] = tmp13 - tmp16;
X[iostride] = tmp13 + tmp16;
}
}
}
static const int twiddle_order[] =
{1, 2, 3, 4, 5, 6, 7};
fftw_codelet_desc fftw_hc2hc_forward_8_desc =
{
"fftw_hc2hc_forward_8",
(void (*)()) fftw_hc2hc_forward_8,
8,
FFTW_FORWARD,
FFTW_HC2HC,
179,
7,
twiddle_order,
};