diff options
Diffstat (limited to 'src/fftw/fn_6.c')
| -rw-r--r-- | src/fftw/fn_6.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/src/fftw/fn_6.c b/src/fftw/fn_6.c new file mode 100644 index 0000000..c034d04 --- /dev/null +++ b/src/fftw/fn_6.c @@ -0,0 +1,159 @@ +/* + * 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 02:05:37 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 -notwiddle 6 */ + +/* + * This function contains 36 FP additions, 8 FP multiplications, + * (or, 32 additions, 4 multiplications, 4 fused multiply/add), + * 20 stack variables, and 24 memory accesses + */ +static const fftw_real K866025403 = +FFTW_KONST(+0.866025403784438646763723170752936183471402627); +static const fftw_real K500000000 = +FFTW_KONST(+0.500000000000000000000000000000000000000000000); + +/* + * Generator Id's : + * $Id: fn_6.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ + * $Id: fn_6.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ + * $Id: fn_6.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ + */ + +void fftw_no_twiddle_6(const fftw_complex *input, fftw_complex *output, + int istride, int ostride) +{ + fftw_real tmp3; + fftw_real tmp11; + fftw_real tmp26; + fftw_real tmp33; + fftw_real tmp6; + fftw_real tmp12; + fftw_real tmp9; + fftw_real tmp13; + fftw_real tmp10; + fftw_real tmp14; + fftw_real tmp18; + fftw_real tmp30; + fftw_real tmp21; + fftw_real tmp31; + fftw_real tmp27; + fftw_real tmp34; + ASSERT_ALIGNED_DOUBLE; + { + fftw_real tmp1; + fftw_real tmp2; + fftw_real tmp24; + fftw_real tmp25; + ASSERT_ALIGNED_DOUBLE; + tmp1 = c_re(input[0]); + tmp2 = c_re(input[3 * istride]); + tmp3 = tmp1 - tmp2; + tmp11 = tmp1 + tmp2; + tmp24 = c_im(input[0]); + tmp25 = c_im(input[3 * istride]); + tmp26 = tmp24 - tmp25; + tmp33 = tmp24 + tmp25; + } + { + fftw_real tmp4; + fftw_real tmp5; + fftw_real tmp7; + fftw_real tmp8; + ASSERT_ALIGNED_DOUBLE; + tmp4 = c_re(input[2 * istride]); + tmp5 = c_re(input[5 * istride]); + tmp6 = tmp4 - tmp5; + tmp12 = tmp4 + tmp5; + tmp7 = c_re(input[4 * istride]); + tmp8 = c_re(input[istride]); + tmp9 = tmp7 - tmp8; + tmp13 = tmp7 + tmp8; + } + tmp10 = tmp6 + tmp9; + tmp14 = tmp12 + tmp13; + { + fftw_real tmp16; + fftw_real tmp17; + fftw_real tmp19; + fftw_real tmp20; + ASSERT_ALIGNED_DOUBLE; + tmp16 = c_im(input[2 * istride]); + tmp17 = c_im(input[5 * istride]); + tmp18 = tmp16 - tmp17; + tmp30 = tmp16 + tmp17; + tmp19 = c_im(input[4 * istride]); + tmp20 = c_im(input[istride]); + tmp21 = tmp19 - tmp20; + tmp31 = tmp19 + tmp20; + } + tmp27 = tmp18 + tmp21; + tmp34 = tmp30 + tmp31; + { + fftw_real tmp15; + fftw_real tmp22; + fftw_real tmp29; + fftw_real tmp32; + ASSERT_ALIGNED_DOUBLE; + c_re(output[3 * ostride]) = tmp3 + tmp10; + tmp15 = tmp3 - (K500000000 * tmp10); + tmp22 = K866025403 * (tmp18 - tmp21); + c_re(output[5 * ostride]) = tmp15 - tmp22; + c_re(output[ostride]) = tmp15 + tmp22; + c_re(output[0]) = tmp11 + tmp14; + tmp29 = tmp11 - (K500000000 * tmp14); + tmp32 = K866025403 * (tmp30 - tmp31); + c_re(output[2 * ostride]) = tmp29 - tmp32; + c_re(output[4 * ostride]) = tmp29 + tmp32; + } + { + fftw_real tmp23; + fftw_real tmp28; + fftw_real tmp35; + fftw_real tmp36; + ASSERT_ALIGNED_DOUBLE; + c_im(output[3 * ostride]) = tmp26 + tmp27; + tmp23 = K866025403 * (tmp9 - tmp6); + tmp28 = tmp26 - (K500000000 * tmp27); + c_im(output[ostride]) = tmp23 + tmp28; + c_im(output[5 * ostride]) = tmp28 - tmp23; + c_im(output[0]) = tmp33 + tmp34; + tmp35 = tmp33 - (K500000000 * tmp34); + tmp36 = K866025403 * (tmp13 - tmp12); + c_im(output[2 * ostride]) = tmp35 - tmp36; + c_im(output[4 * ostride]) = tmp36 + tmp35; + } +} + +fftw_codelet_desc fftw_no_twiddle_6_desc = { + "fftw_no_twiddle_6", + (void (*)()) fftw_no_twiddle_6, + 6, + FFTW_FORWARD, + FFTW_NOTW, + 133, + 0, + (const int *) 0, +}; |