/* * 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 02:06:25 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 -notwiddleinv 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: fni_8.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ * $Id: fni_8.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ * $Id: fni_8.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ */ void fftwi_no_twiddle_8(const fftw_complex *input, fftw_complex *output, int istride, int ostride) { fftw_real tmp3; fftw_real tmp37; fftw_real tmp18; fftw_real tmp23; fftw_real tmp6; fftw_real tmp24; fftw_real tmp21; fftw_real tmp38; 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; tmp37 = 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; tmp23 = tmp16 - tmp17; tmp4 = c_re(input[2 * istride]); tmp5 = c_re(input[6 * istride]); tmp6 = tmp4 + tmp5; tmp24 = tmp4 - tmp5; } tmp19 = c_im(input[2 * istride]); tmp20 = c_im(input[6 * istride]); tmp21 = tmp19 + tmp20; tmp38 = 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 = tmp34 - tmp31; } { 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 = tmp26 + tmp29; } } { 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 = tmp10 - tmp13; tmp22 = tmp18 - tmp21; c_im(output[2 * ostride]) = tmp15 + tmp22; c_im(output[6 * ostride]) = tmp22 - tmp15; } { fftw_real tmp47; fftw_real tmp50; fftw_real tmp51; fftw_real tmp52; ASSERT_ALIGNED_DOUBLE; tmp47 = tmp18 + tmp21; tmp50 = tmp48 + tmp49; c_im(output[4 * ostride]) = tmp47 - tmp50; c_im(output[0]) = tmp47 + tmp50; tmp51 = tmp3 - tmp6; tmp52 = tmp49 - tmp48; c_re(output[6 * ostride]) = tmp51 - tmp52; c_re(output[2 * ostride]) = tmp51 + tmp52; } { fftw_real tmp25; fftw_real tmp36; fftw_real tmp39; fftw_real tmp40; ASSERT_ALIGNED_DOUBLE; tmp25 = tmp23 - tmp24; tmp36 = K707106781 * (tmp30 - tmp35); c_im(output[7 * ostride]) = tmp25 - tmp36; c_im(output[3 * ostride]) = tmp25 + tmp36; tmp39 = tmp37 - tmp38; tmp40 = K707106781 * (tmp30 + tmp35); c_re(output[5 * ostride]) = tmp39 - tmp40; c_re(output[ostride]) = tmp39 + tmp40; } { fftw_real tmp45; fftw_real tmp46; fftw_real tmp41; fftw_real tmp44; ASSERT_ALIGNED_DOUBLE; tmp45 = tmp37 + tmp38; tmp46 = K707106781 * (tmp43 - tmp42); c_re(output[7 * ostride]) = tmp45 - tmp46; c_re(output[3 * ostride]) = tmp45 + tmp46; tmp41 = tmp24 + tmp23; tmp44 = K707106781 * (tmp42 + tmp43); c_im(output[5 * ostride]) = tmp41 - tmp44; c_im(output[ostride]) = tmp41 + tmp44; } } fftw_codelet_desc fftwi_no_twiddle_8_desc = { "fftwi_no_twiddle_8", (void (*)()) fftwi_no_twiddle_8, 8, FFTW_BACKWARD, FFTW_NOTW, 188, 0, (const int *) 0, };