diff options
Diffstat (limited to 'src/fftw3/dft/codelets/standard/t1_2.c')
| -rw-r--r-- | src/fftw3/dft/codelets/standard/t1_2.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/fftw3/dft/codelets/standard/t1_2.c b/src/fftw3/dft/codelets/standard/t1_2.c new file mode 100644 index 0000000..9213d04 --- /dev/null +++ b/src/fftw3/dft/codelets/standard/t1_2.c @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2003 Matteo Frigo + * Copyright (c) 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 Sat Jul 5 21:29:51 EDT 2003 */ + +#include "codelet-dft.h" + +/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_twiddle -compact -variables 4 -n 2 -name t1_2 -include t.h */ + +/* + * This function contains 6 FP additions, 4 FP multiplications, + * (or, 4 additions, 2 multiplications, 2 fused multiply/add), + * 9 stack variables, and 8 memory accesses + */ +/* + * Generator Id's : + * $Id: t1_2.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + * $Id: t1_2.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + * $Id: t1_2.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + */ + +#include "t.h" + +static const R *t1_2(R *ri, R *ii, const R *W, stride ios, int m, int dist) +{ + int i; + for (i = m; i > 0; i = i - 1, ri = ri + dist, ii = ii + dist, W = W + 2) { + E T1, T8, T6, T7; + T1 = ri[0]; + T8 = ii[0]; + { + E T3, T5, T2, T4; + T3 = ri[WS(ios, 1)]; + T5 = ii[WS(ios, 1)]; + T2 = W[0]; + T4 = W[1]; + T6 = FMA(T2, T3, T4 * T5); + T7 = FNMS(T4, T3, T2 * T5); + } + ri[WS(ios, 1)] = T1 - T6; + ii[WS(ios, 1)] = T8 - T7; + ri[0] = T1 + T6; + ii[0] = T7 + T8; + } + return W; +} + +static const tw_instr twinstr[] = { + {TW_FULL, 0, 2}, + {TW_NEXT, 1, 0} +}; + +static const ct_desc desc = { 2, "t1_2", twinstr, {4, 2, 2, 0}, &GENUS, 0, 0, 0 }; + +void X(codelet_t1_2) (planner *p) { + X(kdft_dit_register) (p, t1_2, &desc); +} |