ref: 1328d84e8b10421e3db2e0c778f359532b0a9cc4
dir: /libfaad/fftw/ftwi_9.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 20:44:59 EST 1999 */ #include <fftw-int.h> #include <fftw.h> /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -twiddleinv 9 */ /* * This function contains 96 FP additions, 72 FP multiplications, * (or, 60 additions, 36 multiplications, 36 fused multiply/add), * 34 stack variables, and 36 memory accesses */ static const fftw_real K642787609 = FFTW_KONST(+0.642787609686539326322643409907263432907559884); static const fftw_real K766044443 = FFTW_KONST(+0.766044443118978035202392650555416673935832457); static const fftw_real K939692620 = FFTW_KONST(+0.939692620785908384054109277324731469936208134); static const fftw_real K342020143 = FFTW_KONST(+0.342020143325668733044099614682259580763083368); static const fftw_real K984807753 = FFTW_KONST(+0.984807753012208059366743024589523013670643252); static const fftw_real K173648177 = FFTW_KONST(+0.173648177666930348851716626769314796000375677); static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000); static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627); /* * Generator Id's : * $Id: ftwi_9.c,v 1.1 2002/04/07 21:26:05 menno Exp $ * $Id: ftwi_9.c,v 1.1 2002/04/07 21:26:05 menno Exp $ * $Id: ftwi_9.c,v 1.1 2002/04/07 21:26:05 menno Exp $ */ void fftwi_twiddle_9(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 + 8) { fftw_real tmp1; fftw_real tmp99; fftw_real tmp64; fftw_real tmp98; fftw_real tmp105; fftw_real tmp104; fftw_real tmp12; fftw_real tmp61; fftw_real tmp47; fftw_real tmp78; fftw_real tmp89; fftw_real tmp54; fftw_real tmp75; fftw_real tmp90; fftw_real tmp30; fftw_real tmp68; fftw_real tmp86; fftw_real tmp59; fftw_real tmp71; fftw_real tmp87; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp6; fftw_real tmp63; fftw_real tmp11; fftw_real tmp62; ASSERT_ALIGNED_DOUBLE; tmp1 = c_re(inout[0]); tmp99 = c_im(inout[0]); { fftw_real tmp3; fftw_real tmp5; fftw_real tmp2; fftw_real tmp4; ASSERT_ALIGNED_DOUBLE; tmp3 = c_re(inout[3 * iostride]); tmp5 = c_im(inout[3 * iostride]); tmp2 = c_re(W[2]); tmp4 = c_im(W[2]); tmp6 = (tmp2 * tmp3) + (tmp4 * tmp5); tmp63 = (tmp2 * tmp5) - (tmp4 * tmp3); } { fftw_real tmp8; fftw_real tmp10; fftw_real tmp7; fftw_real tmp9; ASSERT_ALIGNED_DOUBLE; tmp8 = c_re(inout[6 * iostride]); tmp10 = c_im(inout[6 * iostride]); tmp7 = c_re(W[5]); tmp9 = c_im(W[5]); tmp11 = (tmp7 * tmp8) + (tmp9 * tmp10); tmp62 = (tmp7 * tmp10) - (tmp9 * tmp8); } tmp64 = K866025403 * (tmp62 - tmp63); tmp98 = tmp63 + tmp62; tmp105 = tmp99 - (K500000000 * tmp98); tmp104 = K866025403 * (tmp6 - tmp11); tmp12 = tmp6 + tmp11; tmp61 = tmp1 - (K500000000 * tmp12); } { fftw_real tmp35; fftw_real tmp50; fftw_real tmp40; fftw_real tmp51; fftw_real tmp45; fftw_real tmp52; fftw_real tmp46; fftw_real tmp53; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp32; fftw_real tmp34; fftw_real tmp31; fftw_real tmp33; ASSERT_ALIGNED_DOUBLE; tmp32 = c_re(inout[2 * iostride]); tmp34 = c_im(inout[2 * iostride]); tmp31 = c_re(W[1]); tmp33 = c_im(W[1]); tmp35 = (tmp31 * tmp32) + (tmp33 * tmp34); tmp50 = (tmp31 * tmp34) - (tmp33 * tmp32); } { fftw_real tmp37; fftw_real tmp39; fftw_real tmp36; fftw_real tmp38; ASSERT_ALIGNED_DOUBLE; tmp37 = c_re(inout[5 * iostride]); tmp39 = c_im(inout[5 * iostride]); tmp36 = c_re(W[4]); tmp38 = c_im(W[4]); tmp40 = (tmp36 * tmp37) + (tmp38 * tmp39); tmp51 = (tmp36 * tmp39) - (tmp38 * tmp37); } { fftw_real tmp42; fftw_real tmp44; fftw_real tmp41; fftw_real tmp43; ASSERT_ALIGNED_DOUBLE; tmp42 = c_re(inout[8 * iostride]); tmp44 = c_im(inout[8 * iostride]); tmp41 = c_re(W[7]); tmp43 = c_im(W[7]); tmp45 = (tmp41 * tmp42) + (tmp43 * tmp44); tmp52 = (tmp41 * tmp44) - (tmp43 * tmp42); } tmp46 = tmp40 + tmp45; tmp53 = tmp51 + tmp52; { fftw_real tmp76; fftw_real tmp77; fftw_real tmp73; fftw_real tmp74; ASSERT_ALIGNED_DOUBLE; tmp47 = tmp35 + tmp46; tmp76 = tmp35 - (K500000000 * tmp46); tmp77 = K866025403 * (tmp52 - tmp51); tmp78 = tmp76 - tmp77; tmp89 = tmp76 + tmp77; tmp54 = tmp50 + tmp53; tmp73 = tmp50 - (K500000000 * tmp53); tmp74 = K866025403 * (tmp40 - tmp45); tmp75 = tmp73 - tmp74; tmp90 = tmp74 + tmp73; } } { fftw_real tmp18; fftw_real tmp55; fftw_real tmp23; fftw_real tmp56; fftw_real tmp28; fftw_real tmp57; fftw_real tmp29; fftw_real tmp58; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp15; fftw_real tmp17; fftw_real tmp14; fftw_real tmp16; ASSERT_ALIGNED_DOUBLE; tmp15 = c_re(inout[iostride]); tmp17 = c_im(inout[iostride]); tmp14 = c_re(W[0]); tmp16 = c_im(W[0]); tmp18 = (tmp14 * tmp15) + (tmp16 * tmp17); tmp55 = (tmp14 * tmp17) - (tmp16 * tmp15); } { fftw_real tmp20; fftw_real tmp22; fftw_real tmp19; fftw_real tmp21; ASSERT_ALIGNED_DOUBLE; tmp20 = c_re(inout[4 * iostride]); tmp22 = c_im(inout[4 * iostride]); tmp19 = c_re(W[3]); tmp21 = c_im(W[3]); tmp23 = (tmp19 * tmp20) + (tmp21 * tmp22); tmp56 = (tmp19 * tmp22) - (tmp21 * tmp20); } { fftw_real tmp25; fftw_real tmp27; fftw_real tmp24; fftw_real tmp26; ASSERT_ALIGNED_DOUBLE; tmp25 = c_re(inout[7 * iostride]); tmp27 = c_im(inout[7 * iostride]); tmp24 = c_re(W[6]); tmp26 = c_im(W[6]); tmp28 = (tmp24 * tmp25) + (tmp26 * tmp27); tmp57 = (tmp24 * tmp27) - (tmp26 * tmp25); } tmp29 = tmp23 + tmp28; tmp58 = tmp56 + tmp57; { fftw_real tmp66; fftw_real tmp67; fftw_real tmp69; fftw_real tmp70; ASSERT_ALIGNED_DOUBLE; tmp30 = tmp18 + tmp29; tmp66 = tmp18 - (K500000000 * tmp29); tmp67 = K866025403 * (tmp57 - tmp56); tmp68 = tmp66 - tmp67; tmp86 = tmp66 + tmp67; tmp59 = tmp55 + tmp58; tmp69 = tmp55 - (K500000000 * tmp58); tmp70 = K866025403 * (tmp23 - tmp28); tmp71 = tmp69 - tmp70; tmp87 = tmp70 + tmp69; } } { fftw_real tmp60; fftw_real tmp13; fftw_real tmp48; fftw_real tmp49; ASSERT_ALIGNED_DOUBLE; tmp60 = K866025403 * (tmp54 - tmp59); tmp13 = tmp1 + tmp12; tmp48 = tmp30 + tmp47; tmp49 = tmp13 - (K500000000 * tmp48); c_re(inout[0]) = tmp13 + tmp48; c_re(inout[3 * iostride]) = tmp49 + tmp60; c_re(inout[6 * iostride]) = tmp49 - tmp60; } { fftw_real tmp101; fftw_real tmp97; fftw_real tmp100; fftw_real tmp102; ASSERT_ALIGNED_DOUBLE; tmp101 = K866025403 * (tmp30 - tmp47); tmp97 = tmp59 + tmp54; tmp100 = tmp98 + tmp99; tmp102 = tmp100 - (K500000000 * tmp97); c_im(inout[0]) = tmp97 + tmp100; c_im(inout[6 * iostride]) = tmp102 - tmp101; c_im(inout[3 * iostride]) = tmp101 + tmp102; } { fftw_real tmp65; fftw_real tmp110; fftw_real tmp80; fftw_real tmp111; fftw_real tmp84; fftw_real tmp109; fftw_real tmp81; fftw_real tmp112; ASSERT_ALIGNED_DOUBLE; tmp65 = tmp61 - tmp64; tmp110 = tmp105 - tmp104; { fftw_real tmp72; fftw_real tmp79; fftw_real tmp82; fftw_real tmp83; ASSERT_ALIGNED_DOUBLE; tmp72 = (K173648177 * tmp68) - (K984807753 * tmp71); tmp79 = (K342020143 * tmp75) + (K939692620 * tmp78); tmp80 = tmp72 - tmp79; tmp111 = K866025403 * (tmp72 + tmp79); tmp82 = (K342020143 * tmp78) - (K939692620 * tmp75); tmp83 = (K173648177 * tmp71) + (K984807753 * tmp68); tmp84 = K866025403 * (tmp82 - tmp83); tmp109 = tmp83 + tmp82; } c_re(inout[2 * iostride]) = tmp65 + tmp80; tmp81 = tmp65 - (K500000000 * tmp80); c_re(inout[8 * iostride]) = tmp81 - tmp84; c_re(inout[5 * iostride]) = tmp81 + tmp84; c_im(inout[2 * iostride]) = tmp109 + tmp110; tmp112 = tmp110 - (K500000000 * tmp109); c_im(inout[5 * iostride]) = tmp111 + tmp112; c_im(inout[8 * iostride]) = tmp112 - tmp111; } { fftw_real tmp85; fftw_real tmp106; fftw_real tmp92; fftw_real tmp107; fftw_real tmp96; fftw_real tmp103; fftw_real tmp93; fftw_real tmp108; ASSERT_ALIGNED_DOUBLE; tmp85 = tmp61 + tmp64; tmp106 = tmp104 + tmp105; { fftw_real tmp88; fftw_real tmp91; fftw_real tmp94; fftw_real tmp95; ASSERT_ALIGNED_DOUBLE; tmp88 = (K766044443 * tmp86) - (K642787609 * tmp87); tmp91 = (K173648177 * tmp89) - (K984807753 * tmp90); tmp92 = tmp88 + tmp91; tmp107 = K866025403 * (tmp88 - tmp91); tmp94 = (K173648177 * tmp90) + (K984807753 * tmp89); tmp95 = (K766044443 * tmp87) + (K642787609 * tmp86); tmp96 = K866025403 * (tmp94 - tmp95); tmp103 = tmp95 + tmp94; } c_re(inout[iostride]) = tmp85 + tmp92; tmp93 = tmp85 - (K500000000 * tmp92); c_re(inout[7 * iostride]) = tmp93 - tmp96; c_re(inout[4 * iostride]) = tmp93 + tmp96; c_im(inout[iostride]) = tmp103 + tmp106; tmp108 = tmp106 - (K500000000 * tmp103); c_im(inout[4 * iostride]) = tmp107 + tmp108; c_im(inout[7 * iostride]) = tmp108 - tmp107; } } } static const int twiddle_order[] = {1, 2, 3, 4, 5, 6, 7, 8}; fftw_codelet_desc fftwi_twiddle_9_desc = { "fftwi_twiddle_9", (void (*)()) fftwi_twiddle_9, 9, FFTW_BACKWARD, FFTW_TWIDDLE, 209, 8, twiddle_order, };