WebSVN - shark - Blame - Rev 107 - /shark/trunk/ports/fftw/fftw/ftw

Rev	Author	Line No.	Line
2	pj	1	/*
		2	* Copyright (c) 1997-1999 Massachusetts Institute of Technology
		3	*
		4	* This program is free software; you can redistribute it and/or modify
		5	* it under the terms of the GNU General Public License as published by
		6	* the Free Software Foundation; either version 2 of the License, or
		7	* (at your option) any later version.
		8	*
		9	* This program is distributed in the hope that it will be useful,
		10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
		11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		12	* GNU General Public License for more details.
		13	*
		14	* You should have received a copy of the GNU General Public License
		15	* along with this program; if not, write to the Free Software
		16	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
		17	*
		18	*/
		19
		20	/* This file was automatically generated --- DO NOT EDIT */
		21	/* Generated on Tue May 18 13:55:19 EDT 1999 */
		22
107	pj	23	#include <fftw-int.h>
		24	#include <fftw.h>
2	pj	25
		26	/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -twiddle 6 */
		27
		28	/*
		29	* This function contains 46 FP additions, 28 FP multiplications,
		30	* (or, 32 additions, 14 multiplications, 14 fused multiply/add),
		31	* 22 stack variables, and 24 memory accesses
		32	*/
		33	static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000);
		34	static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627);
		35
		36	/*
		37	* Generator Id's :
107	pj	38	* $Id: ftw_6.c,v 1.2 2003-03-24 11:14:52 pj Exp $
		39	* $Id: ftw_6.c,v 1.2 2003-03-24 11:14:52 pj Exp $
		40	* $Id: ftw_6.c,v 1.2 2003-03-24 11:14:52 pj Exp $
2	pj	41	*/
		42
		43	void fftw_twiddle_6(fftw_complex A, const fftw_complex W, int iostride, int m, int dist)
		44	{
		45	int i;
		46	fftw_complex *inout;
		47	inout = A;
		48	for (i = m; i > 0; i = i - 1, inout = inout + dist, W = W + 5) {
		49	fftw_real tmp7;
		50	fftw_real tmp31;
		51	fftw_real tmp50;
		52	fftw_real tmp54;
		53	fftw_real tmp29;
		54	fftw_real tmp33;
		55	fftw_real tmp41;
		56	fftw_real tmp45;
		57	fftw_real tmp18;
		58	fftw_real tmp32;
		59	fftw_real tmp38;
		60	fftw_real tmp44;
		61	ASSERT_ALIGNED_DOUBLE();
		62	{
		63	fftw_real tmp1;
		64	fftw_real tmp49;
		65	fftw_real tmp6;
		66	fftw_real tmp48;
		67	ASSERT_ALIGNED_DOUBLE();
		68	tmp1 = c_re(inout[0]);
		69	tmp49 = c_im(inout[0]);
		70	{
		71	fftw_real tmp3;
		72	fftw_real tmp5;
		73	fftw_real tmp2;
		74	fftw_real tmp4;
		75	ASSERT_ALIGNED_DOUBLE();
		76	tmp3 = c_re(inout[3 * iostride]);
		77	tmp5 = c_im(inout[3 * iostride]);
		78	tmp2 = c_re(W[2]);
		79	tmp4 = c_im(W[2]);
		80	tmp6 = (tmp2 * tmp3) - (tmp4 * tmp5);
		81	tmp48 = (tmp4 * tmp3) + (tmp2 * tmp5);
		82	}
		83	tmp7 = tmp1 - tmp6;
		84	tmp31 = tmp1 + tmp6;
		85	tmp50 = tmp48 + tmp49;
		86	tmp54 = tmp49 - tmp48;
		87	}
		88	{
		89	fftw_real tmp23;
		90	fftw_real tmp39;
		91	fftw_real tmp28;
		92	fftw_real tmp40;
		93	ASSERT_ALIGNED_DOUBLE();
		94	{
		95	fftw_real tmp20;
		96	fftw_real tmp22;
		97	fftw_real tmp19;
		98	fftw_real tmp21;
		99	ASSERT_ALIGNED_DOUBLE();
		100	tmp20 = c_re(inout[4 * iostride]);
		101	tmp22 = c_im(inout[4 * iostride]);
		102	tmp19 = c_re(W[3]);
		103	tmp21 = c_im(W[3]);
		104	tmp23 = (tmp19 * tmp20) - (tmp21 * tmp22);
		105	tmp39 = (tmp21 * tmp20) + (tmp19 * tmp22);
		106	}
		107	{
		108	fftw_real tmp25;
		109	fftw_real tmp27;
		110	fftw_real tmp24;
		111	fftw_real tmp26;
		112	ASSERT_ALIGNED_DOUBLE();
		113	tmp25 = c_re(inout[iostride]);
		114	tmp27 = c_im(inout[iostride]);
		115	tmp24 = c_re(W[0]);
		116	tmp26 = c_im(W[0]);
		117	tmp28 = (tmp24 * tmp25) - (tmp26 * tmp27);
		118	tmp40 = (tmp26 * tmp25) + (tmp24 * tmp27);
		119	}
		120	tmp29 = tmp23 - tmp28;
		121	tmp33 = tmp23 + tmp28;
		122	tmp41 = tmp39 - tmp40;
		123	tmp45 = tmp39 + tmp40;
		124	}
		125	{
		126	fftw_real tmp12;
		127	fftw_real tmp36;
		128	fftw_real tmp17;
		129	fftw_real tmp37;
		130	ASSERT_ALIGNED_DOUBLE();
		131	{
		132	fftw_real tmp9;
		133	fftw_real tmp11;
		134	fftw_real tmp8;
		135	fftw_real tmp10;
		136	ASSERT_ALIGNED_DOUBLE();
		137	tmp9 = c_re(inout[2 * iostride]);
		138	tmp11 = c_im(inout[2 * iostride]);
		139	tmp8 = c_re(W[1]);
		140	tmp10 = c_im(W[1]);
		141	tmp12 = (tmp8 * tmp9) - (tmp10 * tmp11);
		142	tmp36 = (tmp10 * tmp9) + (tmp8 * tmp11);
		143	}
		144	{
		145	fftw_real tmp14;
		146	fftw_real tmp16;
		147	fftw_real tmp13;
		148	fftw_real tmp15;
		149	ASSERT_ALIGNED_DOUBLE();
		150	tmp14 = c_re(inout[5 * iostride]);
		151	tmp16 = c_im(inout[5 * iostride]);
		152	tmp13 = c_re(W[4]);
		153	tmp15 = c_im(W[4]);
		154	tmp17 = (tmp13 * tmp14) - (tmp15 * tmp16);
		155	tmp37 = (tmp15 * tmp14) + (tmp13 * tmp16);
		156	}
		157	tmp18 = tmp12 - tmp17;
		158	tmp32 = tmp12 + tmp17;
		159	tmp38 = tmp36 - tmp37;
		160	tmp44 = tmp36 + tmp37;
		161	}
		162	{
		163	fftw_real tmp42;
		164	fftw_real tmp30;
		165	fftw_real tmp35;
		166	fftw_real tmp53;
		167	fftw_real tmp55;
		168	fftw_real tmp56;
		169	ASSERT_ALIGNED_DOUBLE();
		170	tmp42 = K866025403 * (tmp38 - tmp41);
		171	tmp30 = tmp18 + tmp29;
		172	tmp35 = tmp7 - (K500000000 * tmp30);
		173	c_re(inout[3 * iostride]) = tmp7 + tmp30;
		174	c_re(inout[iostride]) = tmp35 + tmp42;
		175	c_re(inout[5 * iostride]) = tmp35 - tmp42;
		176	tmp53 = K866025403 * (tmp29 - tmp18);
		177	tmp55 = tmp38 + tmp41;
		178	tmp56 = tmp54 - (K500000000 * tmp55);
		179	c_im(inout[iostride]) = tmp53 + tmp56;
		180	c_im(inout[5 * iostride]) = tmp56 - tmp53;
		181	c_im(inout[3 * iostride]) = tmp55 + tmp54;
		182	}
		183	{
		184	fftw_real tmp46;
		185	fftw_real tmp34;
		186	fftw_real tmp43;
		187	fftw_real tmp52;
		188	fftw_real tmp47;
		189	fftw_real tmp51;
		190	ASSERT_ALIGNED_DOUBLE();
		191	tmp46 = K866025403 * (tmp44 - tmp45);
		192	tmp34 = tmp32 + tmp33;
		193	tmp43 = tmp31 - (K500000000 * tmp34);
		194	c_re(inout[0]) = tmp31 + tmp34;
		195	c_re(inout[4 * iostride]) = tmp43 + tmp46;
		196	c_re(inout[2 * iostride]) = tmp43 - tmp46;
		197	tmp52 = K866025403 * (tmp33 - tmp32);
		198	tmp47 = tmp44 + tmp45;
		199	tmp51 = tmp50 - (K500000000 * tmp47);
		200	c_im(inout[0]) = tmp47 + tmp50;
		201	c_im(inout[4 * iostride]) = tmp52 + tmp51;
		202	c_im(inout[2 * iostride]) = tmp51 - tmp52;
		203	}
		204	}
		205	}
		206
		207	static const int twiddle_order[] =
		208	{1, 2, 3, 4, 5};
		209	fftw_codelet_desc fftw_twiddle_6_desc =
		210	{
		211	"fftw_twiddle_6",
		212	(void (*)()) fftw_twiddle_6,
		213	6,
		214	FFTW_FORWARD,
		215	FFTW_TWIDDLE,
		216	132,
		217	5,
		218	twiddle_order,
		219	};

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