/* * 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 20:43:55 EST 1999 */ #include #include /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -real2hc 9 */ /* * This function contains 38 FP additions, 26 FP multiplications, * (or, 29 additions, 17 multiplications, 9 fused multiply/add), * 21 stack variables, and 18 memory accesses */ static const fftw_real K342020143 = FFTW_KONST(+0.342020143325668733044099614682259580763083368); static const fftw_real K813797681 = FFTW_KONST(+0.813797681349373692844693217248393223289101568); static const fftw_real K939692620 = FFTW_KONST(+0.939692620785908384054109277324731469936208134); static const fftw_real K296198132 = FFTW_KONST(+0.296198132726023843175338011893050938967728390); static const fftw_real K852868531 = FFTW_KONST(+0.852868531952443209628250963940074071936020296); static const fftw_real K173648177 = FFTW_KONST(+0.173648177666930348851716626769314796000375677); static const fftw_real K556670399 = FFTW_KONST(+0.556670399226419366452912952047023132968291906); static const fftw_real K766044443 = FFTW_KONST(+0.766044443118978035202392650555416673935832457); static const fftw_real K984807753 = FFTW_KONST(+0.984807753012208059366743024589523013670643252); static const fftw_real K150383733 = FFTW_KONST(+0.150383733180435296639271897612501926072238258); static const fftw_real K642787609 = FFTW_KONST(+0.642787609686539326322643409907263432907559884); static const fftw_real K663413948 = FFTW_KONST(+0.663413948168938396205421319635891297216863310); static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627); static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000); /* * 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_real2hc_9(const fftw_real *input, fftw_real *real_output, fftw_real *imag_output, int istride, int real_ostride, int imag_ostride) { fftw_real tmp1; fftw_real tmp15; fftw_real tmp20; fftw_real tmp19; fftw_real tmp4; fftw_real tmp27; fftw_real tmp10; fftw_real tmp18; fftw_real tmp21; fftw_real tmp2; fftw_real tmp3; fftw_real tmp5; fftw_real tmp16; ASSERT_ALIGNED_DOUBLE; tmp1 = input[0]; { fftw_real tmp11; fftw_real tmp12; fftw_real tmp13; fftw_real tmp14; ASSERT_ALIGNED_DOUBLE; tmp11 = input[2 * istride]; tmp12 = input[5 * istride]; tmp13 = input[8 * istride]; tmp14 = tmp12 + tmp13; tmp15 = tmp11 + tmp14; tmp20 = tmp11 - (K500000000 * tmp14); tmp19 = tmp13 - tmp12; } tmp2 = input[3 * istride]; tmp3 = input[6 * istride]; tmp4 = tmp2 + tmp3; tmp27 = tmp3 - tmp2; { fftw_real tmp6; fftw_real tmp7; fftw_real tmp8; fftw_real tmp9; ASSERT_ALIGNED_DOUBLE; tmp6 = input[istride]; tmp7 = input[4 * istride]; tmp8 = input[7 * istride]; tmp9 = tmp7 + tmp8; tmp10 = tmp6 + tmp9; tmp18 = tmp6 - (K500000000 * tmp9); tmp21 = tmp8 - tmp7; } imag_output[3 * imag_ostride] = K866025403 * (tmp15 - tmp10); tmp5 = tmp1 + tmp4; tmp16 = tmp10 + tmp15; real_output[3 * real_ostride] = tmp5 - (K500000000 * tmp16); real_output[0] = tmp5 + tmp16; { fftw_real tmp29; fftw_real tmp25; fftw_real tmp26; fftw_real tmp28; fftw_real tmp17; fftw_real tmp22; fftw_real tmp23; fftw_real tmp24; ASSERT_ALIGNED_DOUBLE; tmp29 = K866025403 * tmp27; tmp25 = (K663413948 * tmp21) - (K642787609 * tmp18); tmp26 = (K150383733 * tmp19) - (K984807753 * tmp20); tmp28 = tmp25 + tmp26; tmp17 = tmp1 - (K500000000 * tmp4); tmp22 = (K766044443 * tmp18) + (K556670399 * tmp21); tmp23 = (K173648177 * tmp20) + (K852868531 * tmp19); tmp24 = tmp22 + tmp23; real_output[real_ostride] = tmp17 + tmp24; real_output[4 * real_ostride] = tmp17 + (K866025403 * (tmp25 - tmp26)) - (K500000000 * tmp24); real_output[2 * real_ostride] = tmp17 + (K173648177 * tmp18) - (K296198132 * tmp19) - (K939692620 * tmp20) - (K852868531 * tmp21); imag_output[imag_ostride] = tmp29 + tmp28; imag_output[4 * imag_ostride] = (K866025403 * (tmp27 + (tmp23 - tmp22))) - (K500000000 * tmp28); imag_output[2 * imag_ostride] = (K813797681 * tmp19) - (K342020143 * tmp20) - (K150383733 * tmp21) - (K984807753 * tmp18) - tmp29; } } fftw_codelet_desc fftw_real2hc_9_desc = { "fftw_real2hc_9", (void (*)()) fftw_real2hc_9, 9, FFTW_FORWARD, FFTW_REAL2HC, 200, 0, (const int *) 0, };