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fn_15.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 20:43:49 EST 1999 */

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

/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -notwiddle 15 */

/*
 * This function contains 156 FP additions, 56 FP multiplications,
 * (or, 128 additions, 28 multiplications, 28 fused multiply/add),
 * 62 stack variables, and 60 memory accesses
 */
static const fftw_real K587785252 = FFTW_KONST(+0.587785252292473129168705954639072768597652438);
static const fftw_real K951056516 = FFTW_KONST(+0.951056516295153572116439333379382143405698634);
static const fftw_real K250000000 = FFTW_KONST(+0.250000000000000000000000000000000000000000000);
static const fftw_real K559016994 = FFTW_KONST(+0.559016994374947424102293417182819058860154590);
static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000);
static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627);

/*
 * 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_no_twiddle_15(const fftw_complex *input, fftw_complex *output, int istride, int ostride)
{
     fftw_real tmp5;
     fftw_real tmp33;
     fftw_real tmp57;
     fftw_real tmp145;
     fftw_real tmp100;
     fftw_real tmp124;
     fftw_real tmp21;
     fftw_real tmp26;
     fftw_real tmp27;
     fftw_real tmp49;
     fftw_real tmp54;
     fftw_real tmp55;
     fftw_real tmp136;
     fftw_real tmp137;
     fftw_real tmp147;
     fftw_real tmp61;
     fftw_real tmp62;
     fftw_real tmp63;
     fftw_real tmp112;
     fftw_real tmp113;
     fftw_real tmp126;
     fftw_real tmp83;
     fftw_real tmp88;
     fftw_real tmp94;
     fftw_real tmp10;
     fftw_real tmp15;
     fftw_real tmp16;
     fftw_real tmp38;
     fftw_real tmp43;
     fftw_real tmp44;
     fftw_real tmp139;
     fftw_real tmp140;
     fftw_real tmp146;
     fftw_real tmp58;
     fftw_real tmp59;
     fftw_real tmp60;
     fftw_real tmp115;
     fftw_real tmp116;
     fftw_real tmp125;
     fftw_real tmp72;
     fftw_real tmp77;
     fftw_real tmp93;
     ASSERT_ALIGNED_DOUBLE;
     {
        fftw_real tmp1;
        fftw_real tmp97;
        fftw_real tmp4;
        fftw_real tmp96;
        fftw_real tmp32;
        fftw_real tmp98;
        fftw_real tmp29;
        fftw_real tmp99;
        ASSERT_ALIGNED_DOUBLE;
        tmp1 = c_re(input[0]);
        tmp97 = c_im(input[0]);
        {
             fftw_real tmp2;
             fftw_real tmp3;
             fftw_real tmp30;
             fftw_real tmp31;
             ASSERT_ALIGNED_DOUBLE;
             tmp2 = c_re(input[5 * istride]);
             tmp3 = c_re(input[10 * istride]);
             tmp4 = tmp2 + tmp3;
             tmp96 = K866025403 * (tmp3 - tmp2);
             tmp30 = c_im(input[5 * istride]);
             tmp31 = c_im(input[10 * istride]);
             tmp32 = K866025403 * (tmp30 - tmp31);
             tmp98 = tmp30 + tmp31;
        }
        tmp5 = tmp1 + tmp4;
        tmp29 = tmp1 - (K500000000 * tmp4);
        tmp33 = tmp29 - tmp32;
        tmp57 = tmp29 + tmp32;
        tmp145 = tmp97 + tmp98;
        tmp99 = tmp97 - (K500000000 * tmp98);
        tmp100 = tmp96 + tmp99;
        tmp124 = tmp99 - tmp96;
     }
     {
        fftw_real tmp17;
        fftw_real tmp20;
        fftw_real tmp45;
        fftw_real tmp79;
        fftw_real tmp80;
        fftw_real tmp81;
        fftw_real tmp48;
        fftw_real tmp82;
        fftw_real tmp22;
        fftw_real tmp25;
        fftw_real tmp50;
        fftw_real tmp84;
        fftw_real tmp85;
        fftw_real tmp86;
        fftw_real tmp53;
        fftw_real tmp87;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp18;
             fftw_real tmp19;
             fftw_real tmp46;
             fftw_real tmp47;
             ASSERT_ALIGNED_DOUBLE;
             tmp17 = c_re(input[6 * istride]);
             tmp18 = c_re(input[11 * istride]);
             tmp19 = c_re(input[istride]);
             tmp20 = tmp18 + tmp19;
             tmp45 = tmp17 - (K500000000 * tmp20);
             tmp79 = K866025403 * (tmp19 - tmp18);
             tmp80 = c_im(input[6 * istride]);
             tmp46 = c_im(input[11 * istride]);
             tmp47 = c_im(input[istride]);
             tmp81 = tmp46 + tmp47;
             tmp48 = K866025403 * (tmp46 - tmp47);
             tmp82 = tmp80 - (K500000000 * tmp81);
        }
        {
             fftw_real tmp23;
             fftw_real tmp24;
             fftw_real tmp51;
             fftw_real tmp52;
             ASSERT_ALIGNED_DOUBLE;
             tmp22 = c_re(input[9 * istride]);
             tmp23 = c_re(input[14 * istride]);
             tmp24 = c_re(input[4 * istride]);
             tmp25 = tmp23 + tmp24;
             tmp50 = tmp22 - (K500000000 * tmp25);
             tmp84 = K866025403 * (tmp24 - tmp23);
             tmp85 = c_im(input[9 * istride]);
             tmp51 = c_im(input[14 * istride]);
             tmp52 = c_im(input[4 * istride]);
             tmp86 = tmp51 + tmp52;
             tmp53 = K866025403 * (tmp51 - tmp52);
             tmp87 = tmp85 - (K500000000 * tmp86);
        }
        tmp21 = tmp17 + tmp20;
        tmp26 = tmp22 + tmp25;
        tmp27 = tmp21 + tmp26;
        tmp49 = tmp45 - tmp48;
        tmp54 = tmp50 - tmp53;
        tmp55 = tmp49 + tmp54;
        tmp136 = tmp80 + tmp81;
        tmp137 = tmp85 + tmp86;
        tmp147 = tmp136 + tmp137;
        tmp61 = tmp45 + tmp48;
        tmp62 = tmp50 + tmp53;
        tmp63 = tmp61 + tmp62;
        tmp112 = tmp82 - tmp79;
        tmp113 = tmp87 - tmp84;
        tmp126 = tmp112 + tmp113;
        tmp83 = tmp79 + tmp82;
        tmp88 = tmp84 + tmp87;
        tmp94 = tmp83 + tmp88;
     }
     {
        fftw_real tmp6;
        fftw_real tmp9;
        fftw_real tmp34;
        fftw_real tmp68;
        fftw_real tmp69;
        fftw_real tmp70;
        fftw_real tmp37;
        fftw_real tmp71;
        fftw_real tmp11;
        fftw_real tmp14;
        fftw_real tmp39;
        fftw_real tmp73;
        fftw_real tmp74;
        fftw_real tmp75;
        fftw_real tmp42;
        fftw_real tmp76;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp7;
             fftw_real tmp8;
             fftw_real tmp35;
             fftw_real tmp36;
             ASSERT_ALIGNED_DOUBLE;
             tmp6 = c_re(input[3 * istride]);
             tmp7 = c_re(input[8 * istride]);
             tmp8 = c_re(input[13 * istride]);
             tmp9 = tmp7 + tmp8;
             tmp34 = tmp6 - (K500000000 * tmp9);
             tmp68 = K866025403 * (tmp8 - tmp7);
             tmp69 = c_im(input[3 * istride]);
             tmp35 = c_im(input[8 * istride]);
             tmp36 = c_im(input[13 * istride]);
             tmp70 = tmp35 + tmp36;
             tmp37 = K866025403 * (tmp35 - tmp36);
             tmp71 = tmp69 - (K500000000 * tmp70);
        }
        {
             fftw_real tmp12;
             fftw_real tmp13;
             fftw_real tmp40;
             fftw_real tmp41;
             ASSERT_ALIGNED_DOUBLE;
             tmp11 = c_re(input[12 * istride]);
             tmp12 = c_re(input[2 * istride]);
             tmp13 = c_re(input[7 * istride]);
             tmp14 = tmp12 + tmp13;
             tmp39 = tmp11 - (K500000000 * tmp14);
             tmp73 = K866025403 * (tmp13 - tmp12);
             tmp74 = c_im(input[12 * istride]);
             tmp40 = c_im(input[2 * istride]);
             tmp41 = c_im(input[7 * istride]);
             tmp75 = tmp40 + tmp41;
             tmp42 = K866025403 * (tmp40 - tmp41);
             tmp76 = tmp74 - (K500000000 * tmp75);
        }
        tmp10 = tmp6 + tmp9;
        tmp15 = tmp11 + tmp14;
        tmp16 = tmp10 + tmp15;
        tmp38 = tmp34 - tmp37;
        tmp43 = tmp39 - tmp42;
        tmp44 = tmp38 + tmp43;
        tmp139 = tmp69 + tmp70;
        tmp140 = tmp74 + tmp75;
        tmp146 = tmp139 + tmp140;
        tmp58 = tmp34 + tmp37;
        tmp59 = tmp39 + tmp42;
        tmp60 = tmp58 + tmp59;
        tmp115 = tmp71 - tmp68;
        tmp116 = tmp76 - tmp73;
        tmp125 = tmp115 + tmp116;
        tmp72 = tmp68 + tmp71;
        tmp77 = tmp73 + tmp76;
        tmp93 = tmp72 + tmp77;
     }
     {
        fftw_real tmp134;
        fftw_real tmp28;
        fftw_real tmp133;
        fftw_real tmp142;
        fftw_real tmp144;
        fftw_real tmp138;
        fftw_real tmp141;
        fftw_real tmp143;
        fftw_real tmp135;
        ASSERT_ALIGNED_DOUBLE;
        tmp134 = K559016994 * (tmp16 - tmp27);
        tmp28 = tmp16 + tmp27;
        tmp133 = tmp5 - (K250000000 * tmp28);
        tmp138 = tmp136 - tmp137;
        tmp141 = tmp139 - tmp140;
        tmp142 = (K951056516 * tmp138) - (K587785252 * tmp141);
        tmp144 = (K951056516 * tmp141) + (K587785252 * tmp138);
        c_re(output[0]) = tmp5 + tmp28;
        tmp143 = tmp134 + tmp133;
        c_re(output[9 * ostride]) = tmp143 - tmp144;
        c_re(output[6 * ostride]) = tmp143 + tmp144;
        tmp135 = tmp133 - tmp134;
        c_re(output[12 * ostride]) = tmp135 - tmp142;
        c_re(output[3 * ostride]) = tmp135 + tmp142;
     }
     {
        fftw_real tmp110;
        fftw_real tmp56;
        fftw_real tmp109;
        fftw_real tmp118;
        fftw_real tmp120;
        fftw_real tmp114;
        fftw_real tmp117;
        fftw_real tmp119;
        fftw_real tmp111;
        ASSERT_ALIGNED_DOUBLE;
        tmp110 = K559016994 * (tmp44 - tmp55);
        tmp56 = tmp44 + tmp55;
        tmp109 = tmp33 - (K250000000 * tmp56);
        tmp114 = tmp112 - tmp113;
        tmp117 = tmp115 - tmp116;
        tmp118 = (K951056516 * tmp114) - (K587785252 * tmp117);
        tmp120 = (K951056516 * tmp117) + (K587785252 * tmp114);
        c_re(output[5 * ostride]) = tmp33 + tmp56;
        tmp119 = tmp110 + tmp109;
        c_re(output[14 * ostride]) = tmp119 - tmp120;
        c_re(output[11 * ostride]) = tmp119 + tmp120;
        tmp111 = tmp109 - tmp110;
        c_re(output[2 * ostride]) = tmp111 - tmp118;
        c_re(output[8 * ostride]) = tmp111 + tmp118;
     }
     {
        fftw_real tmp150;
        fftw_real tmp148;
        fftw_real tmp149;
        fftw_real tmp154;
        fftw_real tmp156;
        fftw_real tmp152;
        fftw_real tmp153;
        fftw_real tmp155;
        fftw_real tmp151;
        ASSERT_ALIGNED_DOUBLE;
        tmp150 = K559016994 * (tmp146 - tmp147);
        tmp148 = tmp146 + tmp147;
        tmp149 = tmp145 - (K250000000 * tmp148);
        tmp152 = tmp21 - tmp26;
        tmp153 = tmp10 - tmp15;
        tmp154 = (K951056516 * tmp152) - (K587785252 * tmp153);
        tmp156 = (K951056516 * tmp153) + (K587785252 * tmp152);
        c_im(output[0]) = tmp145 + tmp148;
        tmp155 = tmp150 + tmp149;
        c_im(output[6 * ostride]) = tmp155 - tmp156;
        c_im(output[9 * ostride]) = tmp156 + tmp155;
        tmp151 = tmp149 - tmp150;
        c_im(output[3 * ostride]) = tmp151 - tmp154;
        c_im(output[12 * ostride]) = tmp154 + tmp151;
     }
     {
        fftw_real tmp129;
        fftw_real tmp127;
        fftw_real tmp128;
        fftw_real tmp123;
        fftw_real tmp132;
        fftw_real tmp121;
        fftw_real tmp122;
        fftw_real tmp131;
        fftw_real tmp130;
        ASSERT_ALIGNED_DOUBLE;
        tmp129 = K559016994 * (tmp125 - tmp126);
        tmp127 = tmp125 + tmp126;
        tmp128 = tmp124 - (K250000000 * tmp127);
        tmp121 = tmp49 - tmp54;
        tmp122 = tmp38 - tmp43;
        tmp123 = (K951056516 * tmp121) - (K587785252 * tmp122);
        tmp132 = (K951056516 * tmp122) + (K587785252 * tmp121);
        c_im(output[5 * ostride]) = tmp124 + tmp127;
        tmp131 = tmp129 + tmp128;
        c_im(output[11 * ostride]) = tmp131 - tmp132;
        c_im(output[14 * ostride]) = tmp132 + tmp131;
        tmp130 = tmp128 - tmp129;
        c_im(output[2 * ostride]) = tmp123 + tmp130;
        c_im(output[8 * ostride]) = tmp130 - tmp123;
     }
     {
        fftw_real tmp95;
        fftw_real tmp101;
        fftw_real tmp102;
        fftw_real tmp106;
        fftw_real tmp107;
        fftw_real tmp104;
        fftw_real tmp105;
        fftw_real tmp108;
        fftw_real tmp103;
        ASSERT_ALIGNED_DOUBLE;
        tmp95 = K559016994 * (tmp93 - tmp94);
        tmp101 = tmp93 + tmp94;
        tmp102 = tmp100 - (K250000000 * tmp101);
        tmp104 = tmp58 - tmp59;
        tmp105 = tmp61 - tmp62;
        tmp106 = (K951056516 * tmp104) + (K587785252 * tmp105);
        tmp107 = (K951056516 * tmp105) - (K587785252 * tmp104);
        c_im(output[10 * ostride]) = tmp100 + tmp101;
        tmp108 = tmp102 - tmp95;
        c_im(output[7 * ostride]) = tmp107 + tmp108;
        c_im(output[13 * ostride]) = tmp108 - tmp107;
        tmp103 = tmp95 + tmp102;
        c_im(output[ostride]) = tmp103 - tmp106;
        c_im(output[4 * ostride]) = tmp106 + tmp103;
     }
     {
        fftw_real tmp65;
        fftw_real tmp64;
        fftw_real tmp66;
        fftw_real tmp90;
        fftw_real tmp92;
        fftw_real tmp78;
        fftw_real tmp89;
        fftw_real tmp91;
        fftw_real tmp67;
        ASSERT_ALIGNED_DOUBLE;
        tmp65 = K559016994 * (tmp60 - tmp63);
        tmp64 = tmp60 + tmp63;
        tmp66 = tmp57 - (K250000000 * tmp64);
        tmp78 = tmp72 - tmp77;
        tmp89 = tmp83 - tmp88;
        tmp90 = (K951056516 * tmp78) + (K587785252 * tmp89);
        tmp92 = (K951056516 * tmp89) - (K587785252 * tmp78);
        c_re(output[10 * ostride]) = tmp57 + tmp64;
        tmp91 = tmp66 - tmp65;
        c_re(output[7 * ostride]) = tmp91 - tmp92;
        c_re(output[13 * ostride]) = tmp91 + tmp92;
        tmp67 = tmp65 + tmp66;
        c_re(output[4 * ostride]) = tmp67 - tmp90;
        c_re(output[ostride]) = tmp67 + tmp90;
     }
}

fftw_codelet_desc fftw_no_twiddle_15_desc =
{
     "fftw_no_twiddle_15",
     (void (*)()) fftw_no_twiddle_15,
     15,
     FFTW_FORWARD,
     FFTW_NOTW,
     331,
     0,
     (const int *) 0,
};

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