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fcr_32.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 20:44:27 EST 1999 */

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

/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -hc2real 32 */

/*
 * This function contains 156 FP additions, 54 FP multiplications,
 * (or, 140 additions, 38 multiplications, 16 fused multiply/add),
 * 44 stack variables, and 64 memory accesses
 */
static const fftw_real K765366864 = FFTW_KONST(+0.765366864730179543456919968060797733522689125);
static const fftw_real K1_847759065 = FFTW_KONST(+1.847759065022573512256366378793576573644833252);
static const fftw_real K555570233 = FFTW_KONST(+0.555570233019602224742830813948532874374937191);
static const fftw_real K831469612 = FFTW_KONST(+0.831469612302545237078788377617905756738560812);
static const fftw_real K195090322 = FFTW_KONST(+0.195090322016128267848284868477022240927691618);
static const fftw_real K980785280 = FFTW_KONST(+0.980785280403230449126182236134239036973933731);
static const fftw_real K1_414213562 = FFTW_KONST(+1.414213562373095048801688724209698078569671875);
static const fftw_real K2_000000000 = FFTW_KONST(+2.000000000000000000000000000000000000000000000);

/*
 * 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_hc2real_32(const fftw_real *real_input, const fftw_real *imag_input, fftw_real *output, int real_istride, int imag_istride, int ostride)
{
     fftw_real tmp9;
     fftw_real tmp134;
     fftw_real tmp96;
     fftw_real tmp37;
     fftw_real tmp32;
     fftw_real tmp58;
     fftw_real tmp56;
     fftw_real tmp80;
     fftw_real tmp145;
     fftw_real tmp149;
     fftw_real tmp119;
     fftw_real tmp123;
     fftw_real tmp6;
     fftw_real tmp34;
     fftw_real tmp93;
     fftw_real tmp133;
     fftw_real tmp17;
     fftw_real tmp39;
     fftw_real tmp46;
     fftw_real tmp83;
     fftw_real tmp100;
     fftw_real tmp136;
     fftw_real tmp103;
     fftw_real tmp137;
     fftw_real tmp25;
     fftw_real tmp49;
     fftw_real tmp65;
     fftw_real tmp79;
     fftw_real tmp142;
     fftw_real tmp148;
     fftw_real tmp112;
     fftw_real tmp122;
     ASSERT_ALIGNED_DOUBLE;
     {
        fftw_real tmp7;
        fftw_real tmp8;
        fftw_real tmp94;
        fftw_real tmp35;
        fftw_real tmp36;
        fftw_real tmp95;
        ASSERT_ALIGNED_DOUBLE;
        tmp7 = real_input[4 * real_istride];
        tmp8 = real_input[12 * real_istride];
        tmp94 = tmp7 - tmp8;
        tmp35 = imag_input[4 * imag_istride];
        tmp36 = imag_input[12 * imag_istride];
        tmp95 = tmp36 + tmp35;
        tmp9 = K2_000000000 * (tmp7 + tmp8);
        tmp134 = K1_414213562 * (tmp94 + tmp95);
        tmp96 = K1_414213562 * (tmp94 - tmp95);
        tmp37 = K2_000000000 * (tmp35 - tmp36);
     }
     {
        fftw_real tmp28;
        fftw_real tmp113;
        fftw_real tmp55;
        fftw_real tmp117;
        fftw_real tmp31;
        fftw_real tmp116;
        fftw_real tmp52;
        fftw_real tmp114;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp26;
             fftw_real tmp27;
             fftw_real tmp53;
             fftw_real tmp54;
             ASSERT_ALIGNED_DOUBLE;
             tmp26 = real_input[3 * real_istride];
             tmp27 = real_input[13 * real_istride];
             tmp28 = tmp26 + tmp27;
             tmp113 = tmp26 - tmp27;
             tmp53 = imag_input[3 * imag_istride];
             tmp54 = imag_input[13 * imag_istride];
             tmp55 = tmp53 - tmp54;
             tmp117 = tmp53 + tmp54;
        }
        {
             fftw_real tmp29;
             fftw_real tmp30;
             fftw_real tmp50;
             fftw_real tmp51;
             ASSERT_ALIGNED_DOUBLE;
             tmp29 = real_input[5 * real_istride];
             tmp30 = real_input[11 * real_istride];
             tmp31 = tmp29 + tmp30;
             tmp116 = tmp30 - tmp29;
             tmp50 = imag_input[5 * imag_istride];
             tmp51 = imag_input[11 * imag_istride];
             tmp52 = tmp50 - tmp51;
             tmp114 = tmp51 + tmp50;
        }
        tmp32 = tmp28 + tmp31;
        tmp58 = tmp31 - tmp28;
        tmp56 = tmp52 + tmp55;
        tmp80 = tmp55 - tmp52;
        {
             fftw_real tmp143;
             fftw_real tmp144;
             fftw_real tmp115;
             fftw_real tmp118;
             ASSERT_ALIGNED_DOUBLE;
             tmp143 = tmp113 + tmp114;
             tmp144 = tmp117 - tmp116;
             tmp145 = (K980785280 * tmp143) - (K195090322 * tmp144);
             tmp149 = (K195090322 * tmp143) + (K980785280 * tmp144);
             tmp115 = tmp113 - tmp114;
             tmp118 = tmp116 + tmp117;
             tmp119 = (K831469612 * tmp115) - (K555570233 * tmp118);
             tmp123 = (K555570233 * tmp115) + (K831469612 * tmp118);
        }
     }
     {
        fftw_real tmp5;
        fftw_real tmp92;
        fftw_real tmp3;
        fftw_real tmp90;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp4;
             fftw_real tmp91;
             fftw_real tmp1;
             fftw_real tmp2;
             ASSERT_ALIGNED_DOUBLE;
             tmp4 = real_input[8 * real_istride];
             tmp5 = K2_000000000 * tmp4;
             tmp91 = imag_input[8 * imag_istride];
             tmp92 = K2_000000000 * tmp91;
             tmp1 = real_input[0];
             tmp2 = real_input[16 * real_istride];
             tmp3 = tmp1 + tmp2;
             tmp90 = tmp1 - tmp2;
        }
        tmp6 = tmp3 + tmp5;
        tmp34 = tmp3 - tmp5;
        tmp93 = tmp90 - tmp92;
        tmp133 = tmp90 + tmp92;
     }
     {
        fftw_real tmp13;
        fftw_real tmp98;
        fftw_real tmp45;
        fftw_real tmp102;
        fftw_real tmp16;
        fftw_real tmp101;
        fftw_real tmp42;
        fftw_real tmp99;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp11;
             fftw_real tmp12;
             fftw_real tmp43;
             fftw_real tmp44;
             ASSERT_ALIGNED_DOUBLE;
             tmp11 = real_input[2 * real_istride];
             tmp12 = real_input[14 * real_istride];
             tmp13 = tmp11 + tmp12;
             tmp98 = tmp11 - tmp12;
             tmp43 = imag_input[2 * imag_istride];
             tmp44 = imag_input[14 * imag_istride];
             tmp45 = tmp43 - tmp44;
             tmp102 = tmp43 + tmp44;
        }
        {
             fftw_real tmp14;
             fftw_real tmp15;
             fftw_real tmp40;
             fftw_real tmp41;
             ASSERT_ALIGNED_DOUBLE;
             tmp14 = real_input[6 * real_istride];
             tmp15 = real_input[10 * real_istride];
             tmp16 = tmp14 + tmp15;
             tmp101 = tmp15 - tmp14;
             tmp40 = imag_input[6 * imag_istride];
             tmp41 = imag_input[10 * imag_istride];
             tmp42 = tmp40 - tmp41;
             tmp99 = tmp41 + tmp40;
        }
        tmp17 = K2_000000000 * (tmp13 + tmp16);
        tmp39 = tmp13 - tmp16;
        tmp46 = tmp42 + tmp45;
        tmp83 = K2_000000000 * (tmp45 - tmp42);
        tmp100 = tmp98 - tmp99;
        tmp136 = tmp98 + tmp99;
        tmp103 = tmp101 + tmp102;
        tmp137 = tmp102 - tmp101;
     }
     {
        fftw_real tmp21;
        fftw_real tmp106;
        fftw_real tmp64;
        fftw_real tmp110;
        fftw_real tmp24;
        fftw_real tmp109;
        fftw_real tmp61;
        fftw_real tmp107;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp19;
             fftw_real tmp20;
             fftw_real tmp62;
             fftw_real tmp63;
             ASSERT_ALIGNED_DOUBLE;
             tmp19 = real_input[real_istride];
             tmp20 = real_input[15 * real_istride];
             tmp21 = tmp19 + tmp20;
             tmp106 = tmp19 - tmp20;
             tmp62 = imag_input[imag_istride];
             tmp63 = imag_input[15 * imag_istride];
             tmp64 = tmp62 - tmp63;
             tmp110 = tmp62 + tmp63;
        }
        {
             fftw_real tmp22;
             fftw_real tmp23;
             fftw_real tmp59;
             fftw_real tmp60;
             ASSERT_ALIGNED_DOUBLE;
             tmp22 = real_input[7 * real_istride];
             tmp23 = real_input[9 * real_istride];
             tmp24 = tmp22 + tmp23;
             tmp109 = tmp23 - tmp22;
             tmp59 = imag_input[7 * imag_istride];
             tmp60 = imag_input[9 * imag_istride];
             tmp61 = tmp59 - tmp60;
             tmp107 = tmp60 + tmp59;
        }
        tmp25 = tmp21 + tmp24;
        tmp49 = tmp21 - tmp24;
        tmp65 = tmp61 + tmp64;
        tmp79 = tmp64 - tmp61;
        {
             fftw_real tmp140;
             fftw_real tmp141;
             fftw_real tmp108;
             fftw_real tmp111;
             ASSERT_ALIGNED_DOUBLE;
             tmp140 = tmp106 + tmp107;
             tmp141 = tmp110 - tmp109;
             tmp142 = (K555570233 * tmp140) + (K831469612 * tmp141);
             tmp148 = (K831469612 * tmp140) - (K555570233 * tmp141);
             tmp108 = tmp106 - tmp107;
             tmp111 = tmp109 + tmp110;
             tmp112 = (K980785280 * tmp108) - (K195090322 * tmp111);
             tmp122 = (K195090322 * tmp108) + (K980785280 * tmp111);
        }
     }
     {
        fftw_real tmp33;
        fftw_real tmp81;
        fftw_real tmp18;
        fftw_real tmp78;
        fftw_real tmp10;
        ASSERT_ALIGNED_DOUBLE;
        tmp33 = K2_000000000 * (tmp25 + tmp32);
        tmp81 = K2_000000000 * (tmp79 - tmp80);
        tmp10 = tmp6 + tmp9;
        tmp18 = tmp10 + tmp17;
        tmp78 = tmp10 - tmp17;
        output[16 * ostride] = tmp18 - tmp33;
        output[0] = tmp18 + tmp33;
        output[8 * ostride] = tmp78 - tmp81;
        output[24 * ostride] = tmp78 + tmp81;
     }
     {
        fftw_real tmp84;
        fftw_real tmp88;
        fftw_real tmp87;
        fftw_real tmp89;
        fftw_real tmp82;
        fftw_real tmp85;
        fftw_real tmp86;
        ASSERT_ALIGNED_DOUBLE;
        tmp82 = tmp6 - tmp9;
        tmp84 = tmp82 - tmp83;
        tmp88 = tmp82 + tmp83;
        tmp85 = tmp25 - tmp32;
        tmp86 = tmp79 + tmp80;
        tmp87 = K1_414213562 * (tmp85 - tmp86);
        tmp89 = K1_414213562 * (tmp85 + tmp86);
        output[20 * ostride] = tmp84 - tmp87;
        output[4 * ostride] = tmp84 + tmp87;
        output[12 * ostride] = tmp88 - tmp89;
        output[28 * ostride] = tmp88 + tmp89;
     }
     {
        fftw_real tmp48;
        fftw_real tmp68;
        fftw_real tmp67;
        fftw_real tmp69;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp38;
             fftw_real tmp47;
             fftw_real tmp57;
             fftw_real tmp66;
             ASSERT_ALIGNED_DOUBLE;
             tmp38 = tmp34 - tmp37;
             tmp47 = K1_414213562 * (tmp39 - tmp46);
             tmp48 = tmp38 + tmp47;
             tmp68 = tmp38 - tmp47;
             tmp57 = tmp49 - tmp56;
             tmp66 = tmp58 + tmp65;
             tmp67 = (K1_847759065 * tmp57) - (K765366864 * tmp66);
             tmp69 = (K1_847759065 * tmp66) + (K765366864 * tmp57);
        }
        output[18 * ostride] = tmp48 - tmp67;
        output[2 * ostride] = tmp48 + tmp67;
        output[10 * ostride] = tmp68 - tmp69;
        output[26 * ostride] = tmp68 + tmp69;
     }
     {
        fftw_real tmp72;
        fftw_real tmp76;
        fftw_real tmp75;
        fftw_real tmp77;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp70;
             fftw_real tmp71;
             fftw_real tmp73;
             fftw_real tmp74;
             ASSERT_ALIGNED_DOUBLE;
             tmp70 = tmp34 + tmp37;
             tmp71 = K1_414213562 * (tmp39 + tmp46);
             tmp72 = tmp70 - tmp71;
             tmp76 = tmp70 + tmp71;
             tmp73 = tmp49 + tmp56;
             tmp74 = tmp65 - tmp58;
             tmp75 = (K765366864 * tmp73) - (K1_847759065 * tmp74);
             tmp77 = (K765366864 * tmp74) + (K1_847759065 * tmp73);
        }
        output[22 * ostride] = tmp72 - tmp75;
        output[6 * ostride] = tmp72 + tmp75;
        output[14 * ostride] = tmp76 - tmp77;
        output[30 * ostride] = tmp76 + tmp77;
     }
     {
        fftw_real tmp120;
        fftw_real tmp124;
        fftw_real tmp105;
        fftw_real tmp121;
        fftw_real tmp97;
        fftw_real tmp104;
        ASSERT_ALIGNED_DOUBLE;
        tmp120 = K2_000000000 * (tmp112 + tmp119);
        tmp124 = K2_000000000 * (tmp122 - tmp123);
        tmp97 = tmp93 + tmp96;
        tmp104 = (K1_847759065 * tmp100) - (K765366864 * tmp103);
        tmp105 = tmp97 + tmp104;
        tmp121 = tmp97 - tmp104;
        output[17 * ostride] = tmp105 - tmp120;
        output[ostride] = tmp105 + tmp120;
        output[9 * ostride] = tmp121 - tmp124;
        output[25 * ostride] = tmp121 + tmp124;
     }
     {
        fftw_real tmp127;
        fftw_real tmp131;
        fftw_real tmp130;
        fftw_real tmp132;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp125;
             fftw_real tmp126;
             fftw_real tmp128;
             fftw_real tmp129;
             ASSERT_ALIGNED_DOUBLE;
             tmp125 = tmp93 - tmp96;
             tmp126 = (K765366864 * tmp100) + (K1_847759065 * tmp103);
             tmp127 = tmp125 - tmp126;
             tmp131 = tmp125 + tmp126;
             tmp128 = tmp112 - tmp119;
             tmp129 = tmp122 + tmp123;
             tmp130 = K1_414213562 * (tmp128 - tmp129);
             tmp132 = K1_414213562 * (tmp128 + tmp129);
        }
        output[21 * ostride] = tmp127 - tmp130;
        output[5 * ostride] = tmp127 + tmp130;
        output[13 * ostride] = tmp131 - tmp132;
        output[29 * ostride] = tmp131 + tmp132;
     }
     {
        fftw_real tmp146;
        fftw_real tmp150;
        fftw_real tmp139;
        fftw_real tmp147;
        fftw_real tmp135;
        fftw_real tmp138;
        ASSERT_ALIGNED_DOUBLE;
        tmp146 = K2_000000000 * (tmp142 - tmp145);
        tmp150 = K2_000000000 * (tmp148 - tmp149);
        tmp135 = tmp133 - tmp134;
        tmp138 = (K765366864 * tmp136) - (K1_847759065 * tmp137);
        tmp139 = tmp135 - tmp138;
        tmp147 = tmp135 + tmp138;
        output[11 * ostride] = tmp139 - tmp146;
        output[27 * ostride] = tmp139 + tmp146;
        output[19 * ostride] = tmp147 - tmp150;
        output[3 * ostride] = tmp147 + tmp150;
     }
     {
        fftw_real tmp153;
        fftw_real tmp157;
        fftw_real tmp156;
        fftw_real tmp158;
        ASSERT_ALIGNED_DOUBLE;
        {
             fftw_real tmp151;
             fftw_real tmp152;
             fftw_real tmp154;
             fftw_real tmp155;
             ASSERT_ALIGNED_DOUBLE;
             tmp151 = tmp133 + tmp134;
             tmp152 = (K1_847759065 * tmp136) + (K765366864 * tmp137);
             tmp153 = tmp151 - tmp152;
             tmp157 = tmp151 + tmp152;
             tmp154 = tmp148 + tmp149;
             tmp155 = tmp142 + tmp145;
             tmp156 = K1_414213562 * (tmp154 - tmp155);
             tmp158 = K1_414213562 * (tmp155 + tmp154);
        }
        output[23 * ostride] = tmp153 - tmp156;
        output[7 * ostride] = tmp153 + tmp156;
        output[15 * ostride] = tmp157 - tmp158;
        output[31 * ostride] = tmp157 + tmp158;
     }
}

fftw_codelet_desc fftw_hc2real_32_desc =
{
     "fftw_hc2real_32",
     (void (*)()) fftw_hc2real_32,
     32,
     FFTW_BACKWARD,
     FFTW_HC2REAL,
     719,
     0,
     (const int *) 0,
};

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