ftw_64.c

FFTW, a collection of fast C routines to compute the Discrete Fourier Transform in one or more dime

/*
 * Copyright (c) 1997-1999, 2003 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 Mon Mar 24 02:07:48 EST 2003 */

#include "fftw-int.h"
#include "fftw.h"

/* Generated by: /homee/stevenj/cvs/fftw/gensrc/genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -twiddle 64 */

/*
 * This function contains 1038 FP additions, 500 FP multiplications,
 * (or, 808 additions, 270 multiplications, 230 fused multiply/add),
 * 162 stack variables, and 256 memory accesses
 */
static const fftw_real K290284677 =
FFTW_KONST(+0.290284677254462367636192375817395274691476278);
static const fftw_real K956940335 =
FFTW_KONST(+0.956940335732208864935797886980269969482849206);
static const fftw_real K881921264 =
FFTW_KONST(+0.881921264348355029712756863660388349508442621);
static const fftw_real K471396736 =
FFTW_KONST(+0.471396736825997648556387625905254377657460319);
static const fftw_real K555570233 =
FFTW_KONST(+0.555570233019602224742830813948532874374937191);
static const fftw_real K831469612 =
FFTW_KONST(+0.831469612302545237078788377617905756738560812);
static const fftw_real K773010453 =
FFTW_KONST(+0.773010453362736960810906609758469800971041293);
static const fftw_real K634393284 =
FFTW_KONST(+0.634393284163645498215171613225493370675687095);
static const fftw_real K098017140 =
FFTW_KONST(+0.098017140329560601994195563888641845861136673);
static const fftw_real K995184726 =
FFTW_KONST(+0.995184726672196886244836953109479921575474869);
static const fftw_real K980785280 =
FFTW_KONST(+0.980785280403230449126182236134239036973933731);
static const fftw_real K195090322 =
FFTW_KONST(+0.195090322016128267848284868477022240927691618);
static const fftw_real K707106781 =
FFTW_KONST(+0.707106781186547524400844362104849039284835938);
static const fftw_real K923879532 =
FFTW_KONST(+0.923879532511286756128183189396788286822416626);
static const fftw_real K382683432 =
FFTW_KONST(+0.382683432365089771728459984030398866761344562);

/*
 * Generator Id's : 
 * $Id: exprdag.ml,v 1.43 2003/03/16 23:43:46 stevenj Exp $
 * $Id: fft.ml,v 1.44 2003/03/16 23:43:46 stevenj Exp $
 * $Id: to_c.ml,v 1.26 2003/03/16 23:43:46 stevenj Exp $
 */

void fftw_twiddle_64(fftw_complex *A, const fftw_complex *W, int iostride,
		     int m, int dist)
{
     int i;
     fftw_complex *inout;
     inout = A;
     for (i = m; i > 0; i = i - 1, inout = inout + dist, W = W + 63) {
	  fftw_real tmp19;
	  fftw_real tmp791;
	  fftw_real tmp1109;
	  fftw_real tmp1139;
	  fftw_real tmp1047;
	  fftw_real tmp1077;
	  fftw_real tmp383;
	  fftw_real tmp655;
	  fftw_real tmp66;
	  fftw_real tmp800;
	  fftw_real tmp908;
	  fftw_real tmp956;
	  fftw_real tmp406;
	  fftw_real tmp608;
	  fftw_real tmp662;
	  fftw_real tmp744;
	  fftw_real tmp42;
	  fftw_real tmp1076;
	  fftw_real tmp794;
	  fftw_real tmp1042;
	  fftw_real tmp394;
	  fftw_real tmp1106;
	  fftw_real tmp658;
	  fftw_real tmp1138;
	  fftw_real tmp329;
	  fftw_real tmp983;
	  fftw_real tmp863;
	  fftw_real tmp927;
	  fftw_real tmp990;
	  fftw_real tmp1026;
	  fftw_real tmp880;
	  fftw_real tmp930;
	  fftw_real tmp535;
	  fftw_real tmp703;
	  fftw_real tmp576;
	  fftw_real tmp714;
	  fftw_real tmp579;
	  fftw_real tmp704;
	  fftw_real tmp546;
	  fftw_real tmp715;
	  fftw_real tmp376;
	  fftw_real tmp991;
	  fftw_real tmp868;
	  fftw_real tmp882;
	  fftw_real tmp986;
	  fftw_real tmp1027;
	  fftw_real tmp873;
	  fftw_real tmp881;
	  fftw_real tmp558;
	  fftw_real tmp582;
	  fftw_real tmp708;
	  fftw_real tmp718;
	  fftw_real tmp569;
	  fftw_real tmp581;
	  fftw_real tmp711;
	  fftw_real tmp717;
	  fftw_real tmp89;
	  fftw_real tmp805;
	  fftw_real tmp909;
	  fftw_real tmp957;
	  fftw_real tmp417;
	  fftw_real tmp609;
	  fftw_real tmp665;
	  fftw_real tmp745;
	  fftw_real tmp161;
	  fftw_real tmp184;
	  fftw_real tmp965;
	  fftw_real tmp823;
	  fftw_real tmp915;
	  fftw_real tmp966;
	  fftw_real tmp967;
	  fftw_real tmp968;
	  fftw_real tmp828;
	  fftw_real tmp916;
	  fftw_real tmp451;
	  fftw_real tmp678;
	  fftw_real tmp468;
	  fftw_real tmp675;
	  fftw_real tmp471;
	  fftw_real tmp679;
	  fftw_real tmp462;
	  fftw_real tmp676;
	  fftw_real tmp114;
	  fftw_real tmp137;
	  fftw_real tmp963;
	  fftw_real tmp812;
	  fftw_real tmp912;
	  fftw_real tmp960;
	  fftw_real tmp961;
	  fftw_real tmp962;
	  fftw_real tmp817;
	  fftw_real tmp913;
	  fftw_real tmp424;
	  fftw_real tmp668;
	  fftw_real tmp441;
	  fftw_real tmp671;
	  fftw_real tmp444;
	  fftw_real tmp669;
	  fftw_real tmp435;
	  fftw_real tmp672;
	  fftw_real tmp234;
	  fftw_real tmp977;
	  fftw_real tmp836;
	  fftw_real tmp923;
	  fftw_real tmp974;
	  fftw_real tmp1021;
	  fftw_real tmp853;
	  fftw_real tmp920;
	  fftw_real tmp480;
	  fftw_real tmp684;
	  fftw_real tmp521;
	  fftw_real tmp695;
	  fftw_real tmp524;
	  fftw_real tmp685;
	  fftw_real tmp491;
	  fftw_real tmp696;
	  fftw_real tmp281;
	  fftw_real tmp975;
	  fftw_real tmp841;
	  fftw_real tmp855;
	  fftw_real tmp980;
	  fftw_real tmp1022;
	  fftw_real tmp846;
	  fftw_real tmp854;
	  fftw_real tmp503;
	  fftw_real tmp527;
	  fftw_real tmp689;
	  fftw_real tmp699;
	  fftw_real tmp514;
	  fftw_real tmp526;
	  fftw_real tmp692;
	  fftw_real tmp698;
	  ASSERT_ALIGNED_DOUBLE;
	  {
	       fftw_real tmp1;
	       fftw_real tmp1045;
	       fftw_real tmp6;
	       fftw_real tmp1044;
	       fftw_real tmp12;
	       fftw_real tmp380;
	       fftw_real tmp17;
	       fftw_real tmp381;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp1 = c_re(inout[0]);
	       tmp1045 = c_im(inout[0]);
	       {
		    fftw_real tmp3;
		    fftw_real tmp5;
		    fftw_real tmp2;
		    fftw_real tmp4;
		    ASSERT_ALIGNED_DOUBLE;
		    tmp3 = c_re(inout[32 * iostride]);
		    tmp5 = c_im(inout[32 * iostride]);
		    tmp2 = c_re(W[31]);
		    tmp4 = c_im(W[31]);
		    tmp6 = (tmp2 * tmp3) - (tmp4 * tmp5);
		    tmp1044 = (tmp4 * tmp3) + (tmp2 * tmp5);
	       }
	       {
		    fftw_real tmp9;
		    fftw_real tmp11;
		    fftw_real tmp8;
		    fftw_real tmp10;
		    ASSERT_ALIGNED_DOUBLE;
		    tmp9 = c_re(inout[16 * iostride]);
		    tmp11 = c_im(inout[16 * iostride]);
		    tmp8 = c_re(W[15]);
		    tmp10 = c_im(W[15]);
		    tmp12 = (tmp8 * tmp9) - (tmp10 * tmp11);
		    tmp380 = (tmp10 * tmp9) + (tmp8 * tmp11);
	       }
	       {
		    fftw_real tmp14;
		    fftw_real tmp16;
		    fftw_real tmp13;
		    fftw_real tmp15;
		    ASSERT_ALIGNED_DOUBLE;
		    tmp14 = c_re(inout[48 * iostride]);
		    tmp16 = c_im(inout[48 * iostride]);
		    tmp13 = c_re(W[47]);
		    tmp15 = c_im(W[47]);
		    tmp17 = (tmp13 * tmp14) - (tmp15 * tmp16);
		    tmp381 = (tmp15 * tmp14) + (tmp13 * tmp16);
	       }
	       {
		    fftw_real tmp7;
		    fftw_real tmp18;
		    fftw_real tmp1107;
		    fftw_real tmp1108;
		    ASSERT_ALIGNED_DOUBLE;
		    tmp7 = tmp1 + tmp6;
		    tmp18 = tmp12 + tmp17;
		    tmp19 = tmp7 + tmp18;
		    tmp791 = tmp7 - tmp18;
		    tmp1107 = tmp1045 - tmp1044;
		    tmp1108 = tmp12 - tmp17;
		    tmp1109 = tmp1107 - tmp1108;
		    tmp1139 = tmp1108 + tmp1107;
	       }
	       {
		    fftw_real tmp1043;
		    fftw_real tmp1046;
		    fftw_real tmp379;
		    fftw_real tmp382;
		    ASSERT_ALIGNED_DOUBLE;
		    tmp1043 = tmp380 + tmp381;
		    tmp1046 = tmp1044 + tmp1045;
		    tmp1047 = tmp1043 + tmp1046;
		    tmp1077 = tmp1046 - tmp1043;
		    tmp379 = tmp1 - tmp6;
		    tmp382 = tmp380 - tmp381;
		    tmp383 = tmp379 - tmp382;
		    tmp655 = tmp379 + tmp382;
	       }
	  }
	  {
	       fftw_real tmp54;
	       fftw_real tmp401;
	       fftw_real tmp398;
	       fftw_real tmp796;
	       fftw_real tmp65;
	       fftw_real tmp399;
	       fftw_real tmp404;
	       fftw_real tmp797;
	       fftw_real tmp798;
	       fftw_real tmp799;
	       ASSERT_ALIGNED_DOUBLE;
	       {
		    fftw_real tmp48;
		    fftw_real tmp396;
		    fftw_real tmp53;
		    fftw_real tmp397;
		    ASSERT_ALIGNED_DOUBLE;
		    {
			 fftw_real tmp45;
			 fftw_real tmp47;
			 fftw_real tmp44;
			 fftw_real tmp46;
			 ASSERT_ALIGNED_DOUBLE;
			 tmp45 = c_re(inout[4 * iostride]);
			 tmp47 = c_im(inout[4 * iostride]);
			 tmp44 = c_re(W[3]);
			 tmp46 = c_im(W[3]);
			 tmp48 = (tmp44 * tmp45) - (tmp46 * tmp47);
			 tmp396 = (tmp46 * tmp45) + (tmp44 * tmp47);
		    }
		    {
			 fftw_real tmp50;
			 fftw_real tmp52;
			 fftw_real tmp49;
			 fftw_real tmp51;
			 ASSERT_ALIGNED_DOUBLE;
			 tmp50 = c_re(inout[36 * iostride]);
			 tmp52 = c_im(inout[36 * iostride]);
			 tmp49 = c_re(W[35]);
			 tmp51 = c_im(W[35]);
			 tmp53 = (tmp49 * tmp50) - (tmp51 * tmp52);
			 tmp397 = (tmp51 * tmp50) + (tmp49 * tmp52);
		    }
		    tmp54 = tmp48 + tmp53;
		    tmp401 = tmp48 - tmp53;
		    tmp398 = tmp396 - tmp397;
		    tmp796 = tmp396 + tmp397;
	       }
	       {
		    fftw_real tmp59;
		    fftw_real tmp402;
		    fftw_real tmp64;
		    fftw_real tmp403;
		    ASSERT_ALIGNED_DOUBLE;
		    {
			 fftw_real tmp56;
			 fftw_real tmp58;
			 fftw_real tmp55;
			 fftw_real tmp57;
			 ASSERT_ALIGNED_DOUBLE;
			 tmp56 = c_re(inout[20 * iostride]);
			 tmp58 = c_im(inout[20 * iostride]);
			 tmp55 = c_re(W[19]);
			 tmp57 = c_im(W[19]);
			 tmp59 = (tmp55 * tmp56) - (tmp57 * tmp58);
			 tmp402 = (tmp57 * tmp56) + (tmp55 * tmp58);
		    }
		    {
			 fftw_real tmp61;
			 fftw_real tmp63;
			 fftw_real tmp60;
			 fftw_real tmp62;
			 ASSERT_ALIGNED_DOUBLE;
			 tmp61 = c_re(inout[52 * iostride]);
			 tmp63 = c_im(inout[52 * iostride]);
			 tmp60 = c_re(W[51]);
			 tmp62 = c_im(W[51]);
			 tmp64 = (tmp60 * tmp61) - (tmp62 * tmp63);
			 tmp403 = (tmp62 * tmp61) + (tmp60 * tmp63);
		    }
		    tmp65 = tmp59 + tmp64;
		    tmp399 = tmp59 - tmp64;
		    tmp404 = tmp402 - tmp403;
		    tmp797 = tmp402 + tmp403;
	       }
	       tmp66 = tmp54 + tmp65;
	       tmp798 = tmp796 - tmp797;
	       tmp799 = tmp54 - tmp65;
	       tmp800 = tmp798 - tmp799;
	       tmp908 = tmp799 + tmp798;
	       tmp956 = tmp796 + tmp797;
	       {
		    fftw_real tmp400;
		    fftw_real tmp405;
		    fftw_real tmp660;
		    fftw_real tmp661;
		    ASSERT_ALIGNED_DOUBLE;
		    tmp400 = tmp398 + tmp399;
		    tmp405 = tmp401 - tmp404;
		    tmp406 = (K382683432 * tmp400) - (K923879532 * tmp405);
		    tmp608 = (K923879532 * tmp400) + (K382683432 * tmp405);
		    tmp660 = tmp398 - tmp399;
		    tmp661 = tmp401 + tmp404;
		    tmp662 = (K923879532 * tmp660) - (K382683432 * tmp661);
		    tmp744 = (K382683432 * tmp660) + (K923879532 * tmp661);
	       }
	  }
	  {
	       fftw_real tmp24;
	       fftw_real tmp384;
	       fftw_real tmp29;
	       fftw_real tmp385;
	       fftw_real tmp386;
	       fftw_real tmp387;
	       fftw_real tmp35;
	       fftw_real tmp390;
	       fftw_real tmp40;
	       fftw_real tmp391;
	       fftw_real tmp389;
	       fftw_real tmp392;
	       ASSERT_ALIGNED_DOUBLE;
	       {
		    fftw_real tmp21;
		    fftw_real tmp23;
		    fftw_real tmp20;
		    fftw_real tmp22;
		    ASSERT_ALIGNED_DOUBLE;
		    tmp21 = c_re(inout[8 * iostride]);
		    tmp23 = c_im(inout[8 * iostride]);
		    tmp20 = c_re(W[7]);
		    tmp22 = c_im(W[7]);
		    tmp24 = (tmp20 * tmp21) - (tmp22 * tmp23);
		    tmp384 = (tmp22 * tmp21) + (tmp20 * tmp23);
	       }
	       {
		    fftw_real tmp26;
		    fftw_real tmp28;
		    fftw_real tmp25;
		    fftw_real tmp27;
		    ASSERT_ALIGNED_DOUBLE;
		    tmp26 = c_re(inout[40 * iostride]);
		    tmp28 = c_im(inout[40 * iostride]);
		    tmp25 = c_re(W[39]);
		    tmp27 = c_im(W[39]);
		    tmp29 = (tmp25 * tmp26) - (tmp27 * tmp28);
		    tmp385 = (tmp27 * tmp26) + (tmp25 * tmp28);
	       }
	       tmp386 = tmp384 - tmp385;
	       tmp387 = tmp24 - tmp29;
	       {
		    fftw_real tmp32;
		    fftw_real tmp34;
		    fftw_real tmp31;
		    fftw_real tmp33;
		    ASSERT_ALIGNED_DOUBLE;
		    tmp32 = c_re(inout[56 * iostride]);
		    tmp34 = c_im(inout[56 * iostride]);
		    tmp31 = c_re(W[55]);
		    tmp33 = c_im(W[55]);
		    tmp35 = (tmp31 * tmp32) - (tmp33 * tmp34);
		    tmp390 = (tmp33 * tmp32) + (tmp31 * tmp34);
	       }
	       {
		    fftw_real tmp37;
		    fftw_real tmp39;
		    fftw_real tmp36;
		    fftw_real tmp38;
		    ASSERT_ALIGNED_DOUBLE;
		    tmp37 = c_re(inout[24 * iostride]);
		    tmp39 = c_im(inout[24 * iostride]);
		    tmp36 = c_re(W[23]);