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fhb_10.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 20:45:15 EST 1999 */

#include <fftw-int.h>
#include <fftw.h>

/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -hc2hc-backward 10 */

/*
 * This function contains 168 FP additions, 90 FP multiplications,
 * (or, 124 additions, 46 multiplications, 44 fused multiply/add),
 * 37 stack variables, and 80 memory accesses
 */
static const fftw_real K250000000 = FFTW_KONST(+0.250000000000000000000000000000000000000000000);
static const fftw_real K951056516 = FFTW_KONST(+0.951056516295153572116439333379382143405698634);
static const fftw_real K587785252 = FFTW_KONST(+0.587785252292473129168705954639072768597652438);
static const fftw_real K559016994 = FFTW_KONST(+0.559016994374947424102293417182819058860154590);
static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000);
static const fftw_real K1_902113032 = FFTW_KONST(+1.902113032590307144232878666758764286811397268);
static const fftw_real K1_175570504 = FFTW_KONST(+1.175570504584946258337411909278145537195304875);
static const fftw_real K2_000000000 = FFTW_KONST(+2.000000000000000000000000000000000000000000000);
static const fftw_real K1_118033988 = FFTW_KONST(+1.118033988749894848204586834365638117720309180);

/*
 * Generator Id's : 
 * $Id: exprdag.ml,v 1.41 1999/05/26 15:44:14 fftw Exp $
 * $Id: fft.ml,v 1.43 1999/05/17 19:44:18 fftw Exp $
 * $Id: to_c.ml,v 1.25 1999/10/26 21:41:32 stevenj Exp $
 */

void fftw_hc2hc_backward_10(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 + (10 * iostride);
     {
        fftw_real tmp155;
        fftw_real tmp163;
        fftw_real tmp175;
        fftw_real tmp183;
        fftw_real tmp172;
        fftw_real tmp182;
        fftw_real tmp162;
        fftw_real tmp180;
        fftw_real tmp166;
        fftw_real tmp167;
        fftw_real tmp170;
        fftw_real tmp171;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp153;
             fftw_real tmp154;
             fftw_real tmp173;
             fftw_real tmp174;
             ASSERT_ALIGNED_DOUBLE;
             tmp153 = X[0];
             tmp154 = X[5 * iostride];
             tmp155 = tmp153 - tmp154;
             tmp163 = tmp153 + tmp154;
             tmp173 = Y[-4 * iostride];
             tmp174 = Y[-iostride];
             tmp175 = tmp173 - tmp174;
             tmp183 = tmp173 + tmp174;
        }
        tmp170 = Y[-2 * iostride];
        tmp171 = Y[-3 * iostride];
        tmp172 = tmp170 - tmp171;
        tmp182 = tmp170 + tmp171;
        {
             fftw_real tmp158;
             fftw_real tmp164;
             fftw_real tmp161;
             fftw_real tmp165;
             ASSERT_ALIGNED_DOUBLE;
             {
                fftw_real tmp156;
                fftw_real tmp157;
                fftw_real tmp159;
                fftw_real tmp160;
                ASSERT_ALIGNED_DOUBLE;
                tmp156 = X[2 * iostride];
                tmp157 = X[3 * iostride];
                tmp158 = tmp156 - tmp157;
                tmp164 = tmp156 + tmp157;
                tmp159 = X[4 * iostride];
                tmp160 = X[iostride];
                tmp161 = tmp159 - tmp160;
                tmp165 = tmp159 + tmp160;
             }
             tmp162 = tmp158 + tmp161;
             tmp180 = K1_118033988 * (tmp158 - tmp161);
             tmp166 = tmp164 + tmp165;
             tmp167 = K1_118033988 * (tmp164 - tmp165);
        }
        X[5 * iostride] = tmp155 + (K2_000000000 * tmp162);
        {
             fftw_real tmp184;
             fftw_real tmp186;
             fftw_real tmp181;
             fftw_real tmp185;
             fftw_real tmp179;
             ASSERT_ALIGNED_DOUBLE;
             tmp184 = (K1_175570504 * tmp182) - (K1_902113032 * tmp183);
             tmp186 = (K1_902113032 * tmp182) + (K1_175570504 * tmp183);
             tmp179 = tmp155 - (K500000000 * tmp162);
             tmp181 = tmp179 - tmp180;
             tmp185 = tmp179 + tmp180;
             X[7 * iostride] = tmp181 - tmp184;
             X[3 * iostride] = tmp181 + tmp184;
             X[iostride] = tmp185 - tmp186;
             X[9 * iostride] = tmp185 + tmp186;
        }
        X[0] = tmp163 + (K2_000000000 * tmp166);
        {
             fftw_real tmp176;
             fftw_real tmp178;
             fftw_real tmp169;
             fftw_real tmp177;
             fftw_real tmp168;
             ASSERT_ALIGNED_DOUBLE;
             tmp176 = (K1_902113032 * tmp172) + (K1_175570504 * tmp175);
             tmp178 = (K1_902113032 * tmp175) - (K1_175570504 * tmp172);
             tmp168 = tmp163 - (K500000000 * tmp166);
             tmp169 = tmp167 + tmp168;
             tmp177 = tmp168 - tmp167;
             X[4 * iostride] = tmp169 + tmp176;
             X[6 * iostride] = tmp169 - tmp176;
             X[8 * iostride] = tmp177 - tmp178;
             X[2 * iostride] = tmp177 + tmp178;
        }
     }
     X = X + dist;
     Y = Y - dist;
     for (i = 2; i < m; i = i + 2, X = X + dist, Y = Y - dist, W = W + 9) {
        fftw_real tmp35;
        fftw_real tmp102;
        fftw_real tmp77;
        fftw_real tmp112;
        fftw_real tmp72;
        fftw_real tmp73;
        fftw_real tmp50;
        fftw_real tmp53;
        fftw_real tmp123;
        fftw_real tmp122;
        fftw_real tmp109;
        fftw_real tmp131;
        fftw_real tmp61;
        fftw_real tmp68;
        fftw_real tmp80;
        fftw_real tmp82;
        fftw_real tmp134;
        fftw_real tmp133;
        fftw_real tmp119;
        fftw_real tmp126;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp33;
             fftw_real tmp34;
             fftw_real tmp75;
             fftw_real tmp76;
             ASSERT_ALIGNED_DOUBLE;
             tmp33 = X[0];
             tmp34 = Y[-5 * iostride];
             tmp35 = tmp33 + tmp34;
             tmp102 = tmp33 - tmp34;
             tmp75 = Y[0];
             tmp76 = X[5 * iostride];
             tmp77 = tmp75 - tmp76;
             tmp112 = tmp75 + tmp76;
        }
        {
             fftw_real tmp38;
             fftw_real tmp103;
             fftw_real tmp48;
             fftw_real tmp107;
             fftw_real tmp41;
             fftw_real tmp104;
             fftw_real tmp45;
             fftw_real tmp106;
             ASSERT_ALIGNED_DOUBLE;
             {
                fftw_real tmp36;
                fftw_real tmp37;
                fftw_real tmp46;
                fftw_real tmp47;
                ASSERT_ALIGNED_DOUBLE;
                tmp36 = X[2 * iostride];
                tmp37 = Y[-7 * iostride];
                tmp38 = tmp36 + tmp37;
                tmp103 = tmp36 - tmp37;
                tmp46 = Y[-6 * iostride];
                tmp47 = X[iostride];
                tmp48 = tmp46 + tmp47;
                tmp107 = tmp46 - tmp47;
             }
             {
                fftw_real tmp39;
                fftw_real tmp40;
                fftw_real tmp43;
                fftw_real tmp44;
                ASSERT_ALIGNED_DOUBLE;
                tmp39 = Y[-8 * iostride];
                tmp40 = X[3 * iostride];
                tmp41 = tmp39 + tmp40;
                tmp104 = tmp39 - tmp40;
                tmp43 = X[4 * iostride];
                tmp44 = Y[-9 * iostride];
                tmp45 = tmp43 + tmp44;
                tmp106 = tmp43 - tmp44;
             }
             {
                fftw_real tmp42;
                fftw_real tmp49;
                fftw_real tmp105;
                fftw_real tmp108;
                ASSERT_ALIGNED_DOUBLE;
                tmp72 = tmp38 - tmp41;
                tmp73 = tmp45 - tmp48;
                tmp42 = tmp38 + tmp41;
                tmp49 = tmp45 + tmp48;
                tmp50 = tmp42 + tmp49;
                tmp53 = K559016994 * (tmp42 - tmp49);
                tmp123 = tmp106 - tmp107;
                tmp122 = tmp103 - tmp104;
                tmp105 = tmp103 + tmp104;
                tmp108 = tmp106 + tmp107;
                tmp109 = tmp105 + tmp108;
                tmp131 = K559016994 * (tmp105 - tmp108);
             }
        }
        {
             fftw_real tmp57;
             fftw_real tmp113;
             fftw_real tmp67;
             fftw_real tmp117;
             fftw_real tmp60;
             fftw_real tmp114;
             fftw_real tmp64;
             fftw_real tmp116;
             ASSERT_ALIGNED_DOUBLE;
             {
                fftw_real tmp55;
                fftw_real tmp56;
                fftw_real tmp65;
                fftw_real tmp66;
                ASSERT_ALIGNED_DOUBLE;
                tmp55 = Y[-2 * iostride];
                tmp56 = X[7 * iostride];
                tmp57 = tmp55 - tmp56;
                tmp113 = tmp55 + tmp56;
                tmp65 = Y[-iostride];
                tmp66 = X[6 * iostride];
                tmp67 = tmp65 - tmp66;
                tmp117 = tmp65 + tmp66;
             }
             {
                fftw_real tmp58;
                fftw_real tmp59;
                fftw_real tmp62;
                fftw_real tmp63;
                ASSERT_ALIGNED_DOUBLE;
                tmp58 = Y[-3 * iostride];
                tmp59 = X[8 * iostride];
                tmp60 = tmp58 - tmp59;
                tmp114 = tmp58 + tmp59;
                tmp62 = Y[-4 * iostride];
                tmp63 = X[9 * iostride];
                tmp64 = tmp62 - tmp63;
                tmp116 = tmp62 + tmp63;
             }
             {
                fftw_real tmp78;
                fftw_real tmp79;
                fftw_real tmp115;
                fftw_real tmp118;
                ASSERT_ALIGNED_DOUBLE;
                tmp61 = tmp57 - tmp60;
                tmp68 = tmp64 - tmp67;
                tmp78 = tmp57 + tmp60;
                tmp79 = tmp64 + tmp67;
                tmp80 = tmp78 + tmp79;
                tmp82 = K559016994 * (tmp78 - tmp79);
                tmp134 = tmp116 + tmp117;
                tmp133 = tmp113 + tmp114;
                tmp115 = tmp113 - tmp114;
                tmp118 = tmp116 - tmp117;
                tmp119 = tmp115 + tmp118;
                tmp126 = K559016994 * (tmp115 - tmp118);
             }
        }
        X[0] = tmp35 + tmp50;
        {
             fftw_real tmp69;
             fftw_real tmp91;
             fftw_real tmp54;
             fftw_real tmp90;
             fftw_real tmp95;
             fftw_real tmp74;
             fftw_real tmp83;
             fftw_real tmp94;
             fftw_real tmp52;
             fftw_real tmp81;
             ASSERT_ALIGNED_DOUBLE;
             tmp69 = (K587785252 * tmp61) - (K951056516 * tmp68);
             tmp91 = (K951056516 * tmp61) + (K587785252 * tmp68);
             tmp52 = tmp35 - (K250000000 * tmp50);
             tmp54 = tmp52 - tmp53;
             tmp90 = tmp53 + tmp52;
             tmp95 = (K951056516 * tmp72) + (K587785252 * tmp73);
             tmp74 = (K587785252 * tmp72) - (K951056516 * tmp73);
             tmp81 = tmp77 - (K250000000 * tmp80);
             tmp83 = tmp81 - tmp82;
             tmp94 = tmp82 + tmp81;
             {
                fftw_real tmp70;
                fftw_real tmp84;
                fftw_real tmp51;
                fftw_real tmp71;
                ASSERT_ALIGNED_DOUBLE;
                tmp70 = tmp54 - tmp69;
                tmp84 = tmp74 + tmp83;
                tmp51 = c_re(W[1]);
                tmp71 = c_im(W[1]);
                X[2 * iostride] = (tmp51 * tmp70) + (tmp71 * tmp84);
                Y[-7 * iostride] = (tmp51 * tmp84) - (tmp71 * tmp70);
             }
             {
                fftw_real tmp86;
                fftw_real tmp88;
                fftw_real tmp85;
                fftw_real tmp87;
                ASSERT_ALIGNED_DOUBLE;
                tmp86 = tmp54 + tmp69;
                tmp88 = tmp83 - tmp74;
                tmp85 = c_re(W[7]);
                tmp87 = c_im(W[7]);
                X[8 * iostride] = (tmp85 * tmp86) + (tmp87 * tmp88);
                Y[-iostride] = (tmp85 * tmp88) - (tmp87 * tmp86);
             }
             {
                fftw_real tmp92;
                fftw_real tmp96;
                fftw_real tmp89;
                fftw_real tmp93;
                ASSERT_ALIGNED_DOUBLE;
                tmp92 = tmp90 + tmp91;
                tmp96 = tmp94 - tmp95;
                tmp89 = c_re(W[3]);
                tmp93 = c_im(W[3]);
                X[4 * iostride] = (tmp89 * tmp92) + (tmp93 * tmp96);
                Y[-5 * iostride] = (tmp89 * tmp96) - (tmp93 * tmp92);
             }
             {
                fftw_real tmp98;
                fftw_real tmp100;
                fftw_real tmp97;
                fftw_real tmp99;
                ASSERT_ALIGNED_DOUBLE;
                tmp98 = tmp90 - tmp91;
                tmp100 = tmp95 + tmp94;
                tmp97 = c_re(W[5]);
                tmp99 = c_im(W[5]);
                X[6 * iostride] = (tmp97 * tmp98) + (tmp99 * tmp100);
                Y[-3 * iostride] = (tmp97 * tmp100) - (tmp99 * tmp98);
             }
        }
        Y[-9 * iostride] = tmp77 + tmp80;
        {
             fftw_real tmp110;
             fftw_real tmp120;
             fftw_real tmp101;
             fftw_real tmp111;
             ASSERT_ALIGNED_DOUBLE;
             tmp110 = tmp102 + tmp109;
             tmp120 = tmp112 + tmp119;
             tmp101 = c_re(W[4]);
             tmp111 = c_im(W[4]);
             X[5 * iostride] = (tmp101 * tmp110) + (tmp111 * tmp120);
             Y[-4 * iostride] = (tmp101 * tmp120) - (tmp111 * tmp110);
        }
        {
             fftw_real tmp124;
             fftw_real tmp142;
             fftw_real tmp127;
             fftw_real tmp143;
             fftw_real tmp147;
             fftw_real tmp135;
             fftw_real tmp132;
             fftw_real tmp146;
             fftw_real tmp125;
             fftw_real tmp130;
             ASSERT_ALIGNED_DOUBLE;
             tmp124 = (K587785252 * tmp122) - (K951056516 * tmp123);
             tmp142 = (K951056516 * tmp122) + (K587785252 * tmp123);
             tmp125 = tmp112 - (K250000000 * tmp119);
             tmp127 = tmp125 - tmp126;
             tmp143 = tmp126 + tmp125;
             tmp147 = (K951056516 * tmp133) + (K587785252 * tmp134);
             tmp135 = (K587785252 * tmp133) - (K951056516 * tmp134);
             tmp130 = tmp102 - (K250000000 * tmp109);
             tmp132 = tmp130 - tmp131;
             tmp146 = tmp131 + tmp130;
             {
                fftw_real tmp128;
                fftw_real tmp136;
                fftw_real tmp121;
                fftw_real tmp129;
                ASSERT_ALIGNED_DOUBLE;
                tmp128 = tmp124 + tmp127;
                tmp136 = tmp132 - tmp135;
                tmp121 = c_re(W[6]);
                tmp129 = c_im(W[6]);
                Y[-2 * iostride] = (tmp121 * tmp128) - (tmp129 * tmp136);
                X[7 * iostride] = (tmp129 * tmp128) + (tmp121 * tmp136);
             }
             {
                fftw_real tmp138;
                fftw_real tmp140;
                fftw_real tmp137;
                fftw_real tmp139;
                ASSERT_ALIGNED_DOUBLE;
                tmp138 = tmp127 - tmp124;
                tmp140 = tmp132 + tmp135;
                tmp137 = c_re(W[2]);
                tmp139 = c_im(W[2]);
                Y[-6 * iostride] = (tmp137 * tmp138) - (tmp139 * tmp140);
                X[3 * iostride] = (tmp139 * tmp138) + (tmp137 * tmp140);
             }
             {
                fftw_real tmp144;
                fftw_real tmp148;
                fftw_real tmp141;
                fftw_real tmp145;
                ASSERT_ALIGNED_DOUBLE;
                tmp144 = tmp142 + tmp143;
                tmp148 = tmp146 - tmp147;
                tmp141 = c_re(W[0]);
                tmp145 = c_im(W[0]);
                Y[-8 * iostride] = (tmp141 * tmp144) - (tmp145 * tmp148);
                X[iostride] = (tmp145 * tmp144) + (tmp141 * tmp148);
             }
             {
                fftw_real tmp150;
                fftw_real tmp152;
                fftw_real tmp149;
                fftw_real tmp151;
                ASSERT_ALIGNED_DOUBLE;
                tmp150 = tmp143 - tmp142;
                tmp152 = tmp146 + tmp147;
                tmp149 = c_re(W[8]);
                tmp151 = c_im(W[8]);
                Y[0] = (tmp149 * tmp150) - (tmp151 * tmp152);
                X[9 * iostride] = (tmp151 * tmp150) + (tmp149 * tmp152);
             }
        }
     }
     if (i == m) {
        fftw_real tmp1;
        fftw_real tmp24;
        fftw_real tmp8;
        fftw_real tmp10;
        fftw_real tmp25;
        fftw_real tmp26;
        fftw_real tmp14;
        fftw_real tmp28;
        fftw_real tmp23;
        fftw_real tmp17;
        ASSERT_ALIGNED_DOUBLE;
        tmp1 = X[2 * iostride];
        tmp24 = Y[-2 * iostride];
        {
             fftw_real tmp2;
             fftw_real tmp3;
             fftw_real tmp4;
             fftw_real tmp5;
             fftw_real tmp6;
             fftw_real tmp7;
             ASSERT_ALIGNED_DOUBLE;
             tmp2 = X[4 * iostride];
             tmp3 = X[0];
             tmp4 = tmp2 + tmp3;
             tmp5 = X[3 * iostride];
             tmp6 = X[iostride];
             tmp7 = tmp5 + tmp6;
             tmp8 = tmp4 + tmp7;
             tmp10 = K1_118033988 * (tmp7 - tmp4);
             tmp25 = tmp2 - tmp3;
             tmp26 = tmp5 - tmp6;
        }
        {
             fftw_real tmp12;
             fftw_real tmp13;
             fftw_real tmp22;
             fftw_real tmp15;
             fftw_real tmp16;
             fftw_real tmp21;
             ASSERT_ALIGNED_DOUBLE;
             tmp12 = Y[-4 * iostride];
             tmp13 = Y[0];
             tmp22 = tmp12 + tmp13;
             tmp15 = Y[-iostride];
             tmp16 = Y[-3 * iostride];
             tmp21 = tmp16 + tmp15;
             tmp14 = tmp12 - tmp13;
             tmp28 = K1_118033988 * (tmp21 + tmp22);
             tmp23 = tmp21 - tmp22;
             tmp17 = tmp15 - tmp16;
        }
        X[0] = K2_000000000 * (tmp1 + tmp8);
        {
             fftw_real tmp18;
             fftw_real tmp19;
             fftw_real tmp11;
             fftw_real tmp20;
             fftw_real tmp9;
             ASSERT_ALIGNED_DOUBLE;
             tmp18 = (K1_175570504 * tmp14) - (K1_902113032 * tmp17);
             tmp19 = (K1_175570504 * tmp17) + (K1_902113032 * tmp14);
             tmp9 = (K500000000 * tmp8) - (K2_000000000 * tmp1);
             tmp11 = tmp9 - tmp10;
             tmp20 = tmp9 + tmp10;
             X[2 * iostride] = tmp11 + tmp18;
             X[8 * iostride] = tmp18 - tmp11;
             X[4 * iostride] = tmp19 - tmp20;
             X[6 * iostride] = tmp20 + tmp19;
        }
        X[5 * iostride] = K2_000000000 * (tmp23 - tmp24);
        {
             fftw_real tmp27;
             fftw_real tmp31;
             fftw_real tmp30;
             fftw_real tmp32;
             fftw_real tmp29;
             ASSERT_ALIGNED_DOUBLE;
             tmp27 = (K1_902113032 * tmp25) + (K1_175570504 * tmp26);
             tmp31 = (K1_902113032 * tmp26) - (K1_175570504 * tmp25);
             tmp29 = (K500000000 * tmp23) + (K2_000000000 * tmp24);
             tmp30 = tmp28 + tmp29;
             tmp32 = tmp29 - tmp28;
             X[iostride] = -(tmp27 + tmp30);
             X[9 * iostride] = tmp27 - tmp30;
             X[3 * iostride] = tmp31 + tmp32;
             X[7 * iostride] = tmp32 - tmp31;
        }
     }
}

static const int twiddle_order[] =
{1, 2, 3, 4, 5, 6, 7, 8, 9};
fftw_codelet_desc fftw_hc2hc_backward_10_desc =
{
     "fftw_hc2hc_backward_10",
     (void (*)()) fftw_hc2hc_backward_10,
     10,
     FFTW_BACKWARD,
     FFTW_HC2HC,
     234,
     9,
     twiddle_order,
};

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