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fni_16.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 20:44:15 EST 1999 */

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

/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -notwiddleinv 16 */

/*
 * This function contains 144 FP additions, 24 FP multiplications,
 * (or, 136 additions, 16 multiplications, 8 fused multiply/add),
 * 46 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: 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 fftwi_no_twiddle_16(const fftw_complex *input, fftw_complex *output, int istride, int ostride)
{
     fftw_real tmp7;
     fftw_real tmp129;
     fftw_real tmp38;
     fftw_real tmp115;
     fftw_real tmp49;
     fftw_real tmp95;
     fftw_real tmp83;
     fftw_real tmp105;
     fftw_real tmp29;
     fftw_real tmp123;
     fftw_real tmp73;
     fftw_real tmp101;
     fftw_real tmp78;
     fftw_real tmp102;
     fftw_real tmp126;
     fftw_real tmp141;
     fftw_real tmp14;
     fftw_real tmp116;
     fftw_real tmp45;
     fftw_real tmp130;
     fftw_real tmp52;
     fftw_real tmp84;
     fftw_real tmp55;
     fftw_real tmp85;
     fftw_real tmp22;
     fftw_real tmp118;
     fftw_real tmp62;
     fftw_real tmp98;
     fftw_real tmp67;
     fftw_real tmp99;
     fftw_real tmp121;
     fftw_real tmp140;
     ASSERT_ALIGNED_DOUBLE;
     {
        fftw_real tmp3;
        fftw_real tmp81;
        fftw_real tmp34;
        fftw_real tmp48;
        fftw_real tmp6;
        fftw_real tmp47;
        fftw_real tmp37;
        fftw_real tmp82;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp1;
             fftw_real tmp2;
             fftw_real tmp32;
             fftw_real tmp33;
             ASSERT_ALIGNED_DOUBLE;
             tmp1 = c_re(input[0]);
             tmp2 = c_re(input[8 * istride]);
             tmp3 = tmp1 + tmp2;
             tmp81 = tmp1 - tmp2;
             tmp32 = c_im(input[0]);
             tmp33 = c_im(input[8 * istride]);
             tmp34 = tmp32 + tmp33;
             tmp48 = tmp32 - tmp33;
        }
        {
             fftw_real tmp4;
             fftw_real tmp5;
             fftw_real tmp35;
             fftw_real tmp36;
             ASSERT_ALIGNED_DOUBLE;
             tmp4 = c_re(input[4 * istride]);
             tmp5 = c_re(input[12 * istride]);
             tmp6 = tmp4 + tmp5;
             tmp47 = tmp4 - tmp5;
             tmp35 = c_im(input[4 * istride]);
             tmp36 = c_im(input[12 * istride]);
             tmp37 = tmp35 + tmp36;
             tmp82 = tmp35 - tmp36;
        }
        tmp7 = tmp3 + tmp6;
        tmp129 = tmp3 - tmp6;
        tmp38 = tmp34 + tmp37;
        tmp115 = tmp34 - tmp37;
        tmp49 = tmp47 + tmp48;
        tmp95 = tmp48 - tmp47;
        tmp83 = tmp81 - tmp82;
        tmp105 = tmp81 + tmp82;
     }
     {
        fftw_real tmp25;
        fftw_real tmp74;
        fftw_real tmp72;
        fftw_real tmp124;
        fftw_real tmp28;
        fftw_real tmp69;
        fftw_real tmp77;
        fftw_real tmp125;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp23;
             fftw_real tmp24;
             fftw_real tmp70;
             fftw_real tmp71;
             ASSERT_ALIGNED_DOUBLE;
             tmp23 = c_re(input[15 * istride]);
             tmp24 = c_re(input[7 * istride]);
             tmp25 = tmp23 + tmp24;
             tmp74 = tmp23 - tmp24;
             tmp70 = c_im(input[15 * istride]);
             tmp71 = c_im(input[7 * istride]);
             tmp72 = tmp70 - tmp71;
             tmp124 = tmp70 + tmp71;
        }
        {
             fftw_real tmp26;
             fftw_real tmp27;
             fftw_real tmp75;
             fftw_real tmp76;
             ASSERT_ALIGNED_DOUBLE;
             tmp26 = c_re(input[3 * istride]);
             tmp27 = c_re(input[11 * istride]);
             tmp28 = tmp26 + tmp27;
             tmp69 = tmp26 - tmp27;
             tmp75 = c_im(input[3 * istride]);
             tmp76 = c_im(input[11 * istride]);
             tmp77 = tmp75 - tmp76;
             tmp125 = tmp75 + tmp76;
        }
        tmp29 = tmp25 + tmp28;
        tmp123 = tmp25 - tmp28;
        tmp73 = tmp69 + tmp72;
        tmp101 = tmp72 - tmp69;
        tmp78 = tmp74 - tmp77;
        tmp102 = tmp74 + tmp77;
        tmp126 = tmp124 - tmp125;
        tmp141 = tmp124 + tmp125;
     }
     {
        fftw_real tmp10;
        fftw_real tmp50;
        fftw_real tmp41;
        fftw_real tmp51;
        fftw_real tmp13;
        fftw_real tmp54;
        fftw_real tmp44;
        fftw_real tmp53;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp8;
             fftw_real tmp9;
             fftw_real tmp39;
             fftw_real tmp40;
             ASSERT_ALIGNED_DOUBLE;
             tmp8 = c_re(input[2 * istride]);
             tmp9 = c_re(input[10 * istride]);
             tmp10 = tmp8 + tmp9;
             tmp50 = tmp8 - tmp9;
             tmp39 = c_im(input[2 * istride]);
             tmp40 = c_im(input[10 * istride]);
             tmp41 = tmp39 + tmp40;
             tmp51 = tmp39 - tmp40;
        }
        {
             fftw_real tmp11;
             fftw_real tmp12;
             fftw_real tmp42;
             fftw_real tmp43;
             ASSERT_ALIGNED_DOUBLE;
             tmp11 = c_re(input[14 * istride]);
             tmp12 = c_re(input[6 * istride]);
             tmp13 = tmp11 + tmp12;
             tmp54 = tmp11 - tmp12;
             tmp42 = c_im(input[14 * istride]);
             tmp43 = c_im(input[6 * istride]);
             tmp44 = tmp42 + tmp43;
             tmp53 = tmp42 - tmp43;
        }
        tmp14 = tmp10 + tmp13;
        tmp116 = tmp10 - tmp13;
        tmp45 = tmp41 + tmp44;
        tmp130 = tmp44 - tmp41;
        tmp52 = tmp50 + tmp51;
        tmp84 = tmp50 - tmp51;
        tmp55 = tmp53 - tmp54;
        tmp85 = tmp54 + tmp53;
     }
     {
        fftw_real tmp18;
        fftw_real tmp63;
        fftw_real tmp61;
        fftw_real tmp119;
        fftw_real tmp21;
        fftw_real tmp58;
        fftw_real tmp66;
        fftw_real tmp120;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp16;
             fftw_real tmp17;
             fftw_real tmp59;
             fftw_real tmp60;
             ASSERT_ALIGNED_DOUBLE;
             tmp16 = c_re(input[istride]);
             tmp17 = c_re(input[9 * istride]);
             tmp18 = tmp16 + tmp17;
             tmp63 = tmp16 - tmp17;
             tmp59 = c_im(input[istride]);
             tmp60 = c_im(input[9 * istride]);
             tmp61 = tmp59 - tmp60;
             tmp119 = tmp59 + tmp60;
        }
        {
             fftw_real tmp19;
             fftw_real tmp20;
             fftw_real tmp64;
             fftw_real tmp65;
             ASSERT_ALIGNED_DOUBLE;
             tmp19 = c_re(input[5 * istride]);
             tmp20 = c_re(input[13 * istride]);
             tmp21 = tmp19 + tmp20;
             tmp58 = tmp19 - tmp20;
             tmp64 = c_im(input[5 * istride]);
             tmp65 = c_im(input[13 * istride]);
             tmp66 = tmp64 - tmp65;
             tmp120 = tmp64 + tmp65;
        }
        tmp22 = tmp18 + tmp21;
        tmp118 = tmp18 - tmp21;
        tmp62 = tmp58 + tmp61;
        tmp98 = tmp61 - tmp58;
        tmp67 = tmp63 - tmp66;
        tmp99 = tmp63 + tmp66;
        tmp121 = tmp119 - tmp120;
        tmp140 = tmp119 + tmp120;
     }
     {
        fftw_real tmp15;
        fftw_real tmp30;
        fftw_real tmp31;
        fftw_real tmp46;
        ASSERT_ALIGNED_DOUBLE;
        tmp15 = tmp7 + tmp14;
        tmp30 = tmp22 + tmp29;
        c_re(output[8 * ostride]) = tmp15 - tmp30;
        c_re(output[0]) = tmp15 + tmp30;
        tmp31 = tmp22 - tmp29;
        tmp46 = tmp38 - tmp45;
        c_im(output[4 * ostride]) = tmp31 + tmp46;
        c_im(output[12 * ostride]) = tmp46 - tmp31;
     }
     {
        fftw_real tmp139;
        fftw_real tmp142;
        fftw_real tmp143;
        fftw_real tmp144;
        ASSERT_ALIGNED_DOUBLE;
        tmp139 = tmp38 + tmp45;
        tmp142 = tmp140 + tmp141;
        c_im(output[8 * ostride]) = tmp139 - tmp142;
        c_im(output[0]) = tmp139 + tmp142;
        tmp143 = tmp7 - tmp14;
        tmp144 = tmp141 - tmp140;
        c_re(output[12 * ostride]) = tmp143 - tmp144;
        c_re(output[4 * ostride]) = tmp143 + tmp144;
     }
     {
        fftw_real tmp117;
        fftw_real tmp131;
        fftw_real tmp128;
        fftw_real tmp132;
        fftw_real tmp122;
        fftw_real tmp127;
        ASSERT_ALIGNED_DOUBLE;
        tmp117 = tmp115 - tmp116;
        tmp131 = tmp129 + tmp130;
        tmp122 = tmp118 - tmp121;
        tmp127 = tmp123 + tmp126;
        tmp128 = K707106781 * (tmp122 - tmp127);
        tmp132 = K707106781 * (tmp122 + tmp127);
        c_im(output[14 * ostride]) = tmp117 - tmp128;
        c_im(output[6 * ostride]) = tmp117 + tmp128;
        c_re(output[10 * ostride]) = tmp131 - tmp132;
        c_re(output[2 * ostride]) = tmp131 + tmp132;
     }
     {
        fftw_real tmp133;
        fftw_real tmp137;
        fftw_real tmp136;
        fftw_real tmp138;
        fftw_real tmp134;
        fftw_real tmp135;
        ASSERT_ALIGNED_DOUBLE;
        tmp133 = tmp116 + tmp115;
        tmp137 = tmp129 - tmp130;
        tmp134 = tmp118 + tmp121;
        tmp135 = tmp126 - tmp123;
        tmp136 = K707106781 * (tmp134 + tmp135);
        tmp138 = K707106781 * (tmp135 - tmp134);
        c_im(output[10 * ostride]) = tmp133 - tmp136;
        c_im(output[2 * ostride]) = tmp133 + tmp136;
        c_re(output[14 * ostride]) = tmp137 - tmp138;
        c_re(output[6 * ostride]) = tmp137 + tmp138;
     }
     {
        fftw_real tmp57;
        fftw_real tmp89;
        fftw_real tmp92;
        fftw_real tmp94;
        fftw_real tmp87;
        fftw_real tmp93;
        fftw_real tmp80;
        fftw_real tmp88;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp56;
             fftw_real tmp90;
             fftw_real tmp91;
             fftw_real tmp86;
             fftw_real tmp68;
             fftw_real tmp79;
             ASSERT_ALIGNED_DOUBLE;
             tmp56 = K707106781 * (tmp52 + tmp55);
             tmp57 = tmp49 + tmp56;
             tmp89 = tmp49 - tmp56;
             tmp90 = (K923879532 * tmp67) - (K382683432 * tmp62);
             tmp91 = (K382683432 * tmp73) + (K923879532 * tmp78);
             tmp92 = tmp90 - tmp91;
             tmp94 = tmp90 + tmp91;
             tmp86 = K707106781 * (tmp84 + tmp85);
             tmp87 = tmp83 - tmp86;
             tmp93 = tmp83 + tmp86;
             tmp68 = (K923879532 * tmp62) + (K382683432 * tmp67);
             tmp79 = (K923879532 * tmp73) - (K382683432 * tmp78);
             tmp80 = tmp68 + tmp79;
             tmp88 = tmp79 - tmp68;
        }
        c_im(output[9 * ostride]) = tmp57 - tmp80;
        c_im(output[ostride]) = tmp57 + tmp80;
        c_re(output[13 * ostride]) = tmp87 - tmp88;
        c_re(output[5 * ostride]) = tmp87 + tmp88;
        c_im(output[13 * ostride]) = tmp89 - tmp92;
        c_im(output[5 * ostride]) = tmp89 + tmp92;
        c_re(output[9 * ostride]) = tmp93 - tmp94;
        c_re(output[ostride]) = tmp93 + tmp94;
     }
     {
        fftw_real tmp97;
        fftw_real tmp109;
        fftw_real tmp112;
        fftw_real tmp114;
        fftw_real tmp107;
        fftw_real tmp113;
        fftw_real tmp104;
        fftw_real tmp108;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp96;
             fftw_real tmp110;
             fftw_real tmp111;
             fftw_real tmp106;
             fftw_real tmp100;
             fftw_real tmp103;
             ASSERT_ALIGNED_DOUBLE;
             tmp96 = K707106781 * (tmp84 - tmp85);
             tmp97 = tmp95 + tmp96;
             tmp109 = tmp95 - tmp96;
             tmp110 = (K382683432 * tmp99) - (K923879532 * tmp98);
             tmp111 = (K923879532 * tmp101) + (K382683432 * tmp102);
             tmp112 = tmp110 - tmp111;
             tmp114 = tmp110 + tmp111;
             tmp106 = K707106781 * (tmp55 - tmp52);
             tmp107 = tmp105 - tmp106;
             tmp113 = tmp105 + tmp106;
             tmp100 = (K382683432 * tmp98) + (K923879532 * tmp99);
             tmp103 = (K382683432 * tmp101) - (K923879532 * tmp102);
             tmp104 = tmp100 + tmp103;
             tmp108 = tmp103 - tmp100;
        }
        c_im(output[11 * ostride]) = tmp97 - tmp104;
        c_im(output[3 * ostride]) = tmp97 + tmp104;
        c_re(output[15 * ostride]) = tmp107 - tmp108;
        c_re(output[7 * ostride]) = tmp107 + tmp108;
        c_im(output[15 * ostride]) = tmp109 - tmp112;
        c_im(output[7 * ostride]) = tmp109 + tmp112;
        c_re(output[11 * ostride]) = tmp113 - tmp114;
        c_re(output[3 * ostride]) = tmp113 + tmp114;
     }
}

fftw_codelet_desc fftwi_no_twiddle_16_desc =
{
     "fftwi_no_twiddle_16",
     (void (*)()) fftwi_no_twiddle_16,
     16,
     FFTW_BACKWARD,
     FFTW_NOTW,
     364,
     0,
     (const int *) 0,
};

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