WebSVN - shark - Blame - Rev 1618 - /shark/branches/xen/ports/fftw/rfftw/fhf

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 13:55:32 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 -hc2hc-forward 7 */
		27
		28	/*
		29	* This function contains 120 FP additions, 96 FP multiplications,
		30	* (or, 108 additions, 84 multiplications, 12 fused multiply/add),
		31	* 25 stack variables, and 56 memory accesses
		32	*/
		33	static const fftw_real K222520933 = FFTW_KONST(+0.222520933956314404288902564496794759466355569);
		34	static const fftw_real K900968867 = FFTW_KONST(+0.900968867902419126236102319507445051165919162);
		35	static const fftw_real K623489801 = FFTW_KONST(+0.623489801858733530525004884004239810632274731);
		36	static const fftw_real K433883739 = FFTW_KONST(+0.433883739117558120475768332848358754609990728);
		37	static const fftw_real K974927912 = FFTW_KONST(+0.974927912181823607018131682993931217232785801);
		38	static const fftw_real K781831482 = FFTW_KONST(+0.781831482468029808708444526674057750232334519);
		39
		40	/*
		41	* Generator Id's :
107	pj	42	* $Id: fhf_7.c,v 1.2 2003-03-24 11:14:58 pj Exp $
		43	* $Id: fhf_7.c,v 1.2 2003-03-24 11:14:58 pj Exp $
		44	* $Id: fhf_7.c,v 1.2 2003-03-24 11:14:58 pj Exp $
2	pj	45	*/
		46
		47	void fftw_hc2hc_forward_7(fftw_real A, const fftw_complex W, int iostride, int m, int dist)
		48	{
		49	int i;
		50	fftw_real *X;
		51	fftw_real *Y;
		52	X = A;
		53	Y = A + (7 * iostride);
		54	{
		55	fftw_real tmp85;
		56	fftw_real tmp84;
		57	fftw_real tmp88;
		58	fftw_real tmp78;
		59	fftw_real tmp86;
		60	fftw_real tmp81;
		61	fftw_real tmp87;
		62	fftw_real tmp82;
		63	fftw_real tmp83;
		64	ASSERT_ALIGNED_DOUBLE();
		65	tmp85 = X[0];
		66	tmp82 = X[iostride];
		67	tmp83 = X[6 * iostride];
		68	tmp84 = tmp82 - tmp83;
		69	tmp88 = tmp82 + tmp83;
		70	{
		71	fftw_real tmp76;
		72	fftw_real tmp77;
		73	fftw_real tmp79;
		74	fftw_real tmp80;
		75	ASSERT_ALIGNED_DOUBLE();
		76	tmp76 = X[2 * iostride];
		77	tmp77 = X[5 * iostride];
		78	tmp78 = tmp76 - tmp77;
		79	tmp86 = tmp76 + tmp77;
		80	tmp79 = X[3 * iostride];
		81	tmp80 = X[4 * iostride];
		82	tmp81 = tmp79 - tmp80;
		83	tmp87 = tmp79 + tmp80;
		84	}
		85	Y[-3 * iostride] = (K781831482 * tmp78) - (K974927912 * tmp81) - (K433883739 * tmp84);
		86	Y[-iostride] = -((K781831482 * tmp84) + (K974927912 * tmp78) + (K433883739 * tmp81));
		87	Y[-2 * iostride] = (K433883739 * tmp78) + (K781831482 * tmp81) - (K974927912 * tmp84);
		88	X[2 * iostride] = tmp85 + (K623489801 * tmp87) - (K900968867 * tmp86) - (K222520933 * tmp88);
		89	X[iostride] = tmp85 + (K623489801 * tmp88) - (K900968867 * tmp87) - (K222520933 * tmp86);
		90	X[3 * iostride] = tmp85 + (K623489801 * tmp86) - (K222520933 * tmp87) - (K900968867 * tmp88);
		91	X[0] = tmp85 + tmp88 + tmp86 + tmp87;
		92	}
		93	X = X + dist;
		94	Y = Y - dist;
		95	for (i = 2; i < m; i = i + 2, X = X + dist, Y = Y - dist, W = W + 6) {
		96	fftw_real tmp14;
		97	fftw_real tmp66;
		98	fftw_real tmp25;
		99	fftw_real tmp68;
		100	fftw_real tmp51;
		101	fftw_real tmp63;
		102	fftw_real tmp36;
		103	fftw_real tmp69;
		104	fftw_real tmp57;
		105	fftw_real tmp64;
		106	fftw_real tmp47;
		107	fftw_real tmp70;
		108	fftw_real tmp54;
		109	fftw_real tmp65;
		110	ASSERT_ALIGNED_DOUBLE();
		111	tmp14 = X[0];
		112	tmp66 = Y[-6 * iostride];
		113	{
		114	fftw_real tmp19;
		115	fftw_real tmp49;
		116	fftw_real tmp24;
		117	fftw_real tmp50;
		118	ASSERT_ALIGNED_DOUBLE();
		119	{
		120	fftw_real tmp16;
		121	fftw_real tmp18;
		122	fftw_real tmp15;
		123	fftw_real tmp17;
		124	ASSERT_ALIGNED_DOUBLE();
		125	tmp16 = X[iostride];
		126	tmp18 = Y[-5 * iostride];
		127	tmp15 = c_re(W[0]);
		128	tmp17 = c_im(W[0]);
		129	tmp19 = (tmp15 * tmp16) - (tmp17 * tmp18);
		130	tmp49 = (tmp17 * tmp16) + (tmp15 * tmp18);
		131	}
		132	{
		133	fftw_real tmp21;
		134	fftw_real tmp23;
		135	fftw_real tmp20;
		136	fftw_real tmp22;
		137	ASSERT_ALIGNED_DOUBLE();
		138	tmp21 = X[6 * iostride];
		139	tmp23 = Y[0];
		140	tmp20 = c_re(W[5]);
		141	tmp22 = c_im(W[5]);
		142	tmp24 = (tmp20 * tmp21) - (tmp22 * tmp23);
		143	tmp50 = (tmp22 * tmp21) + (tmp20 * tmp23);
		144	}
		145	tmp25 = tmp19 + tmp24;
		146	tmp68 = tmp24 - tmp19;
		147	tmp51 = tmp49 - tmp50;
		148	tmp63 = tmp49 + tmp50;
		149	}
		150	{
		151	fftw_real tmp30;
		152	fftw_real tmp55;
		153	fftw_real tmp35;
		154	fftw_real tmp56;
		155	ASSERT_ALIGNED_DOUBLE();
		156	{
		157	fftw_real tmp27;
		158	fftw_real tmp29;
		159	fftw_real tmp26;
		160	fftw_real tmp28;
		161	ASSERT_ALIGNED_DOUBLE();
		162	tmp27 = X[2 * iostride];
		163	tmp29 = Y[-4 * iostride];
		164	tmp26 = c_re(W[1]);
		165	tmp28 = c_im(W[1]);
		166	tmp30 = (tmp26 * tmp27) - (tmp28 * tmp29);
		167	tmp55 = (tmp28 * tmp27) + (tmp26 * tmp29);
		168	}
		169	{
		170	fftw_real tmp32;
		171	fftw_real tmp34;
		172	fftw_real tmp31;
		173	fftw_real tmp33;
		174	ASSERT_ALIGNED_DOUBLE();
		175	tmp32 = X[5 * iostride];
		176	tmp34 = Y[-iostride];
		177	tmp31 = c_re(W[4]);
		178	tmp33 = c_im(W[4]);
		179	tmp35 = (tmp31 * tmp32) - (tmp33 * tmp34);
		180	tmp56 = (tmp33 * tmp32) + (tmp31 * tmp34);
		181	}
		182	tmp36 = tmp30 + tmp35;
		183	tmp69 = tmp35 - tmp30;
		184	tmp57 = tmp55 - tmp56;
		185	tmp64 = tmp55 + tmp56;
		186	}
		187	{
		188	fftw_real tmp41;
		189	fftw_real tmp52;
		190	fftw_real tmp46;
		191	fftw_real tmp53;
		192	ASSERT_ALIGNED_DOUBLE();
		193	{
		194	fftw_real tmp38;
		195	fftw_real tmp40;
		196	fftw_real tmp37;
		197	fftw_real tmp39;
		198	ASSERT_ALIGNED_DOUBLE();
		199	tmp38 = X[3 * iostride];
		200	tmp40 = Y[-3 * iostride];
		201	tmp37 = c_re(W[2]);
		202	tmp39 = c_im(W[2]);
		203	tmp41 = (tmp37 * tmp38) - (tmp39 * tmp40);
		204	tmp52 = (tmp39 * tmp38) + (tmp37 * tmp40);
		205	}
		206	{
		207	fftw_real tmp43;
		208	fftw_real tmp45;
		209	fftw_real tmp42;
		210	fftw_real tmp44;
		211	ASSERT_ALIGNED_DOUBLE();
		212	tmp43 = X[4 * iostride];
		213	tmp45 = Y[-2 * iostride];
		214	tmp42 = c_re(W[3]);
		215	tmp44 = c_im(W[3]);
		216	tmp46 = (tmp42 * tmp43) - (tmp44 * tmp45);
		217	tmp53 = (tmp44 * tmp43) + (tmp42 * tmp45);
		218	}
		219	tmp47 = tmp41 + tmp46;
		220	tmp70 = tmp46 - tmp41;
		221	tmp54 = tmp52 - tmp53;
		222	tmp65 = tmp52 + tmp53;
		223	}
		224	{
		225	fftw_real tmp60;
		226	fftw_real tmp59;
		227	fftw_real tmp73;
		228	fftw_real tmp72;
		229	ASSERT_ALIGNED_DOUBLE();
		230	X[0] = tmp14 + tmp25 + tmp36 + tmp47;
		231	tmp60 = (K781831482 * tmp51) + (K974927912 * tmp57) + (K433883739 * tmp54);
		232	tmp59 = tmp14 + (K623489801 * tmp25) - (K900968867 * tmp47) - (K222520933 * tmp36);
		233	Y[-6 * iostride] = tmp59 - tmp60;
		234	X[iostride] = tmp59 + tmp60;
		235	{
		236	fftw_real tmp62;
		237	fftw_real tmp61;
		238	fftw_real tmp58;
		239	fftw_real tmp48;
		240	ASSERT_ALIGNED_DOUBLE();
		241	tmp62 = (K433883739 * tmp51) + (K974927912 * tmp54) - (K781831482 * tmp57);
		242	tmp61 = tmp14 + (K623489801 * tmp36) - (K222520933 * tmp47) - (K900968867 * tmp25);
		243	Y[-4 * iostride] = tmp61 - tmp62;
		244	X[3 * iostride] = tmp61 + tmp62;
		245	tmp58 = (K974927912 * tmp51) - (K781831482 * tmp54) - (K433883739 * tmp57);
		246	tmp48 = tmp14 + (K623489801 * tmp47) - (K900968867 * tmp36) - (K222520933 * tmp25);
		247	Y[-5 * iostride] = tmp48 - tmp58;
		248	X[2 * iostride] = tmp48 + tmp58;
		249	}
		250	Y[0] = tmp63 + tmp64 + tmp65 + tmp66;
		251	tmp73 = (K974927912 * tmp68) - (K781831482 * tmp70) - (K433883739 * tmp69);
		252	tmp72 = (K623489801 * tmp65) + tmp66 - (K900968867 * tmp64) - (K222520933 * tmp63);
		253	X[5 * iostride] = -(tmp72 - tmp73);
		254	Y[-2 * iostride] = tmp73 + tmp72;
		255	{
		256	fftw_real tmp75;
		257	fftw_real tmp74;
		258	fftw_real tmp71;
		259	fftw_real tmp67;
		260	ASSERT_ALIGNED_DOUBLE();
		261	tmp75 = (K433883739 * tmp68) + (K974927912 * tmp70) - (K781831482 * tmp69);
		262	tmp74 = (K623489801 * tmp64) + tmp66 - (K222520933 * tmp65) - (K900968867 * tmp63);
		263	X[4 * iostride] = -(tmp74 - tmp75);
		264	Y[-3 * iostride] = tmp75 + tmp74;
		265	tmp71 = (K781831482 * tmp68) + (K974927912 * tmp69) + (K433883739 * tmp70);
		266	tmp67 = (K623489801 * tmp63) + tmp66 - (K900968867 * tmp65) - (K222520933 * tmp64);
		267	X[6 * iostride] = -(tmp67 - tmp71);
		268	Y[-iostride] = tmp71 + tmp67;
		269	}
		270	}
		271	}
		272	if (i == m) {
		273	fftw_real tmp1;
		274	fftw_real tmp10;
		275	fftw_real tmp13;
		276	fftw_real tmp4;
		277	fftw_real tmp11;
		278	fftw_real tmp7;
		279	fftw_real tmp12;
		280	fftw_real tmp8;
		281	fftw_real tmp9;
		282	ASSERT_ALIGNED_DOUBLE();
		283	tmp1 = X[0];
		284	tmp8 = X[iostride];
		285	tmp9 = X[6 * iostride];
		286	tmp10 = tmp8 - tmp9;
		287	tmp13 = tmp8 + tmp9;
		288	{
		289	fftw_real tmp2;
		290	fftw_real tmp3;
		291	fftw_real tmp5;
		292	fftw_real tmp6;
		293	ASSERT_ALIGNED_DOUBLE();
		294	tmp2 = X[2 * iostride];
		295	tmp3 = X[5 * iostride];
		296	tmp4 = tmp2 - tmp3;
		297	tmp11 = tmp2 + tmp3;
		298	tmp5 = X[3 * iostride];
		299	tmp6 = X[4 * iostride];
		300	tmp7 = tmp5 - tmp6;
		301	tmp12 = tmp5 + tmp6;
		302	}
		303	Y[0] = -((K781831482 * tmp11) + (K974927912 * tmp12) + (K433883739 * tmp13));
		304	Y[-iostride] = (K781831482 * tmp12) - (K974927912 * tmp13) - (K433883739 * tmp11);
		305	Y[-2 * iostride] = (K974927912 * tmp11) - (K781831482 * tmp13) - (K433883739 * tmp12);
		306	X[iostride] = tmp1 + (K222520933 * tmp10) - (K623489801 * tmp7) - (K900968867 * tmp4);
		307	X[2 * iostride] = tmp1 + (K900968867 * tmp7) - (K623489801 * tmp10) - (K222520933 * tmp4);
		308	X[3 * iostride] = tmp1 + tmp4 - (tmp7 + tmp10);
		309	X[0] = tmp1 + (K623489801 * tmp4) + (K222520933 * tmp7) + (K900968867 * tmp10);
		310	}
		311	}
		312
		313	static const int twiddle_order[] =
		314	{1, 2, 3, 4, 5, 6};
		315	fftw_codelet_desc fftw_hc2hc_forward_7_desc =
		316	{
		317	"fftw_hc2hc_forward_7",
		318	(void (*)()) fftw_hc2hc_forward_7,
		319	7,
		320	FFTW_FORWARD,
		321	FFTW_HC2HC,
		322	157,
		323	6,
		324	twiddle_order,
		325	};

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(root)/shark/branches/xen/ports/fftw/rfftw/fhf_7.c - Rev 1618