diff options
Diffstat (limited to 'src/fftw/ftw_6.c')
| -rw-r--r-- | src/fftw/ftw_6.c | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/src/fftw/ftw_6.c b/src/fftw/ftw_6.c new file mode 100644 index 0000000..4d86444 --- /dev/null +++ b/src/fftw/ftw_6.c @@ -0,0 +1,220 @@ +/* + * 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 02:07:33 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 6 */ + +/* + * This function contains 46 FP additions, 28 FP multiplications, + * (or, 32 additions, 14 multiplications, 14 fused multiply/add), + * 22 stack variables, and 24 memory accesses + */ +static const fftw_real K500000000 = +FFTW_KONST(+0.500000000000000000000000000000000000000000000); +static const fftw_real K866025403 = +FFTW_KONST(+0.866025403784438646763723170752936183471402627); + +/* + * Generator Id's : + * $Id: ftw_6.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ + * $Id: ftw_6.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ + * $Id: ftw_6.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ + */ + +void fftw_twiddle_6(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 + 5) { + fftw_real tmp7; + fftw_real tmp31; + fftw_real tmp50; + fftw_real tmp54; + fftw_real tmp29; + fftw_real tmp33; + fftw_real tmp41; + fftw_real tmp45; + fftw_real tmp18; + fftw_real tmp32; + fftw_real tmp38; + fftw_real tmp44; + ASSERT_ALIGNED_DOUBLE; + { + fftw_real tmp1; + fftw_real tmp49; + fftw_real tmp6; + fftw_real tmp48; + ASSERT_ALIGNED_DOUBLE; + tmp1 = c_re(inout[0]); + tmp49 = 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); + tmp48 = (tmp4 * tmp3) + (tmp2 * tmp5); + } + tmp7 = tmp1 - tmp6; + tmp31 = tmp1 + tmp6; + tmp50 = tmp48 + tmp49; + tmp54 = tmp49 - tmp48; + } + { + fftw_real tmp23; + fftw_real tmp39; + fftw_real tmp28; + fftw_real tmp40; + ASSERT_ALIGNED_DOUBLE; + { + 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); + tmp39 = (tmp21 * tmp20) + (tmp19 * tmp22); + } + { + fftw_real tmp25; + fftw_real tmp27; + fftw_real tmp24; + fftw_real tmp26; + ASSERT_ALIGNED_DOUBLE; + tmp25 = c_re(inout[iostride]); + tmp27 = c_im(inout[iostride]); + tmp24 = c_re(W[0]); + tmp26 = c_im(W[0]); + tmp28 = (tmp24 * tmp25) - (tmp26 * tmp27); + tmp40 = (tmp26 * tmp25) + (tmp24 * tmp27); + } + tmp29 = tmp23 - tmp28; + tmp33 = tmp23 + tmp28; + tmp41 = tmp39 - tmp40; + tmp45 = tmp39 + tmp40; + } + { + fftw_real tmp12; + fftw_real tmp36; + fftw_real tmp17; + fftw_real tmp37; + ASSERT_ALIGNED_DOUBLE; + { + fftw_real tmp9; + fftw_real tmp11; + fftw_real tmp8; + fftw_real tmp10; + ASSERT_ALIGNED_DOUBLE; + tmp9 = c_re(inout[2 * iostride]); + tmp11 = c_im(inout[2 * iostride]); + tmp8 = c_re(W[1]); + tmp10 = c_im(W[1]); + tmp12 = (tmp8 * tmp9) - (tmp10 * tmp11); + tmp36 = (tmp10 * tmp9) + (tmp8 * tmp11); + } + { + fftw_real tmp14; + fftw_real tmp16; + fftw_real tmp13; + fftw_real tmp15; + ASSERT_ALIGNED_DOUBLE; + tmp14 = c_re(inout[5 * iostride]); + tmp16 = c_im(inout[5 * iostride]); + tmp13 = c_re(W[4]); + tmp15 = c_im(W[4]); + tmp17 = (tmp13 * tmp14) - (tmp15 * tmp16); + tmp37 = (tmp15 * tmp14) + (tmp13 * tmp16); + } + tmp18 = tmp12 - tmp17; + tmp32 = tmp12 + tmp17; + tmp38 = tmp36 - tmp37; + tmp44 = tmp36 + tmp37; + } + { + fftw_real tmp42; + fftw_real tmp30; + fftw_real tmp35; + fftw_real tmp53; + fftw_real tmp55; + fftw_real tmp56; + ASSERT_ALIGNED_DOUBLE; + tmp42 = K866025403 * (tmp38 - tmp41); + tmp30 = tmp18 + tmp29; + tmp35 = tmp7 - (K500000000 * tmp30); + c_re(inout[3 * iostride]) = tmp7 + tmp30; + c_re(inout[iostride]) = tmp35 + tmp42; + c_re(inout[5 * iostride]) = tmp35 - tmp42; + tmp53 = K866025403 * (tmp29 - tmp18); + tmp55 = tmp38 + tmp41; + tmp56 = tmp54 - (K500000000 * tmp55); + c_im(inout[iostride]) = tmp53 + tmp56; + c_im(inout[5 * iostride]) = tmp56 - tmp53; + c_im(inout[3 * iostride]) = tmp55 + tmp54; + } + { + fftw_real tmp46; + fftw_real tmp34; + fftw_real tmp43; + fftw_real tmp52; + fftw_real tmp47; + fftw_real tmp51; + ASSERT_ALIGNED_DOUBLE; + tmp46 = K866025403 * (tmp44 - tmp45); + tmp34 = tmp32 + tmp33; + tmp43 = tmp31 - (K500000000 * tmp34); + c_re(inout[0]) = tmp31 + tmp34; + c_re(inout[4 * iostride]) = tmp43 + tmp46; + c_re(inout[2 * iostride]) = tmp43 - tmp46; + tmp52 = K866025403 * (tmp33 - tmp32); + tmp47 = tmp44 + tmp45; + tmp51 = tmp50 - (K500000000 * tmp47); + c_im(inout[0]) = tmp47 + tmp50; + c_im(inout[4 * iostride]) = tmp52 + tmp51; + c_im(inout[2 * iostride]) = tmp51 - tmp52; + } + } +} + +static const int twiddle_order[] = { 1, 2, 3, 4, 5 }; +fftw_codelet_desc fftw_twiddle_6_desc = { + "fftw_twiddle_6", + (void (*)()) fftw_twiddle_6, + 6, + FFTW_FORWARD, + FFTW_TWIDDLE, + 132, + 5, + twiddle_order, +}; |