diff options
Diffstat (limited to 'src/fftw/fn_8.c')
| -rw-r--r-- | src/fftw/fn_8.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/src/fftw/fn_8.c b/src/fftw/fn_8.c new file mode 100644 index 0000000..d2075fb --- /dev/null +++ b/src/fftw/fn_8.c @@ -0,0 +1,202 @@ +/* + * 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 8 */ + +/* + * This function contains 52 FP additions, 4 FP multiplications, + * (or, 52 additions, 4 multiplications, 0 fused multiply/add), + * 26 stack variables, and 32 memory accesses + */ +static const fftw_real K707106781 = +FFTW_KONST(+0.707106781186547524400844362104849039284835938); + +/* + * Generator Id's : + * $Id: fn_8.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ + * $Id: fn_8.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ + * $Id: fn_8.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ + */ + +void fftw_no_twiddle_8(const fftw_complex *input, fftw_complex *output, + int istride, int ostride) +{ + fftw_real tmp3; + fftw_real tmp23; + fftw_real tmp18; + fftw_real tmp38; + fftw_real tmp6; + fftw_real tmp37; + fftw_real tmp21; + fftw_real tmp24; + fftw_real tmp13; + fftw_real tmp49; + fftw_real tmp35; + fftw_real tmp43; + fftw_real tmp10; + fftw_real tmp48; + fftw_real tmp30; + fftw_real tmp42; + ASSERT_ALIGNED_DOUBLE; + { + fftw_real tmp1; + fftw_real tmp2; + fftw_real tmp19; + fftw_real tmp20; + ASSERT_ALIGNED_DOUBLE; + tmp1 = c_re(input[0]); + tmp2 = c_re(input[4 * istride]); + tmp3 = tmp1 + tmp2; + tmp23 = tmp1 - tmp2; + { + fftw_real tmp16; + fftw_real tmp17; + fftw_real tmp4; + fftw_real tmp5; + ASSERT_ALIGNED_DOUBLE; + tmp16 = c_im(input[0]); + tmp17 = c_im(input[4 * istride]); + tmp18 = tmp16 + tmp17; + tmp38 = tmp16 - tmp17; + tmp4 = c_re(input[2 * istride]); + tmp5 = c_re(input[6 * istride]); + tmp6 = tmp4 + tmp5; + tmp37 = tmp4 - tmp5; + } + tmp19 = c_im(input[2 * istride]); + tmp20 = c_im(input[6 * istride]); + tmp21 = tmp19 + tmp20; + tmp24 = tmp19 - tmp20; + { + fftw_real tmp11; + fftw_real tmp12; + fftw_real tmp31; + fftw_real tmp32; + fftw_real tmp33; + fftw_real tmp34; + ASSERT_ALIGNED_DOUBLE; + tmp11 = c_re(input[7 * istride]); + tmp12 = c_re(input[3 * istride]); + tmp31 = tmp11 - tmp12; + tmp32 = c_im(input[7 * istride]); + tmp33 = c_im(input[3 * istride]); + tmp34 = tmp32 - tmp33; + tmp13 = tmp11 + tmp12; + tmp49 = tmp32 + tmp33; + tmp35 = tmp31 - tmp34; + tmp43 = tmp31 + tmp34; + } + { + fftw_real tmp8; + fftw_real tmp9; + fftw_real tmp26; + fftw_real tmp27; + fftw_real tmp28; + fftw_real tmp29; + ASSERT_ALIGNED_DOUBLE; + tmp8 = c_re(input[istride]); + tmp9 = c_re(input[5 * istride]); + tmp26 = tmp8 - tmp9; + tmp27 = c_im(input[istride]); + tmp28 = c_im(input[5 * istride]); + tmp29 = tmp27 - tmp28; + tmp10 = tmp8 + tmp9; + tmp48 = tmp27 + tmp28; + tmp30 = tmp26 + tmp29; + tmp42 = tmp29 - tmp26; + } + } + { + fftw_real tmp7; + fftw_real tmp14; + fftw_real tmp15; + fftw_real tmp22; + ASSERT_ALIGNED_DOUBLE; + tmp7 = tmp3 + tmp6; + tmp14 = tmp10 + tmp13; + c_re(output[4 * ostride]) = tmp7 - tmp14; + c_re(output[0]) = tmp7 + tmp14; + tmp15 = tmp13 - tmp10; + tmp22 = tmp18 - tmp21; + c_im(output[2 * ostride]) = tmp15 + tmp22; + c_im(output[6 * ostride]) = tmp22 - tmp15; + } + { + fftw_real tmp51; + fftw_real tmp52; + fftw_real tmp47; + fftw_real tmp50; + ASSERT_ALIGNED_DOUBLE; + tmp51 = tmp18 + tmp21; + tmp52 = tmp48 + tmp49; + c_im(output[4 * ostride]) = tmp51 - tmp52; + c_im(output[0]) = tmp51 + tmp52; + tmp47 = tmp3 - tmp6; + tmp50 = tmp48 - tmp49; + c_re(output[6 * ostride]) = tmp47 - tmp50; + c_re(output[2 * ostride]) = tmp47 + tmp50; + } + { + fftw_real tmp25; + fftw_real tmp36; + fftw_real tmp39; + fftw_real tmp40; + ASSERT_ALIGNED_DOUBLE; + tmp25 = tmp23 + tmp24; + tmp36 = K707106781 * (tmp30 + tmp35); + c_re(output[5 * ostride]) = tmp25 - tmp36; + c_re(output[ostride]) = tmp25 + tmp36; + tmp39 = tmp37 + tmp38; + tmp40 = K707106781 * (tmp35 - tmp30); + c_im(output[7 * ostride]) = tmp39 - tmp40; + c_im(output[3 * ostride]) = tmp39 + tmp40; + } + { + fftw_real tmp45; + fftw_real tmp46; + fftw_real tmp41; + fftw_real tmp44; + ASSERT_ALIGNED_DOUBLE; + tmp45 = tmp38 - tmp37; + tmp46 = K707106781 * (tmp42 + tmp43); + c_im(output[5 * ostride]) = tmp45 - tmp46; + c_im(output[ostride]) = tmp45 + tmp46; + tmp41 = tmp23 - tmp24; + tmp44 = K707106781 * (tmp42 - tmp43); + c_re(output[7 * ostride]) = tmp41 - tmp44; + c_re(output[3 * ostride]) = tmp41 + tmp44; + } +} + +fftw_codelet_desc fftw_no_twiddle_8_desc = { + "fftw_no_twiddle_8", + (void (*)()) fftw_no_twiddle_8, + 8, + FFTW_FORWARD, + FFTW_NOTW, + 177, + 0, + (const int *) 0, +}; |