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 13:55:34 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 8 */
		27
		28	/*
		29	* This function contains 108 FP additions, 44 FP multiplications,
		30	* (or, 90 additions, 26 multiplications, 18 fused multiply/add),
		31	* 29 stack variables, and 64 memory accesses
		32	*/
		33	static const fftw_real K382683432 = FFTW_KONST(+0.382683432365089771728459984030398866761344562);
		34	static const fftw_real K923879532 = FFTW_KONST(+0.923879532511286756128183189396788286822416626);
		35	static const fftw_real K707106781 = FFTW_KONST(+0.707106781186547524400844362104849039284835938);
		36
		37	/*
		38	* Generator Id's :
107	pj	39	* $Id: fhf_8.c,v 1.2 2003-03-24 11:14:58 pj Exp $
		40	* $Id: fhf_8.c,v 1.2 2003-03-24 11:14:58 pj Exp $
		41	* $Id: fhf_8.c,v 1.2 2003-03-24 11:14:58 pj Exp $
2	pj	42	*/
		43
		44	void fftw_hc2hc_forward_8(fftw_real A, const fftw_complex W, int iostride, int m, int dist)
		45	{
		46	int i;
		47	fftw_real *X;
		48	fftw_real *Y;
		49	X = A;
		50	Y = A + (8 * iostride);
		51	{
		52	fftw_real tmp105;
		53	fftw_real tmp109;
		54	fftw_real tmp115;
		55	fftw_real tmp121;
		56	fftw_real tmp108;
		57	fftw_real tmp118;
		58	fftw_real tmp112;
		59	fftw_real tmp120;
		60	ASSERT_ALIGNED_DOUBLE();
		61	{
		62	fftw_real tmp103;
		63	fftw_real tmp104;
		64	fftw_real tmp113;
		65	fftw_real tmp114;
		66	ASSERT_ALIGNED_DOUBLE();
		67	tmp103 = X[0];
		68	tmp104 = X[4 * iostride];
		69	tmp105 = tmp103 + tmp104;
		70	tmp109 = tmp103 - tmp104;
		71	tmp113 = X[7 * iostride];
		72	tmp114 = X[3 * iostride];
		73	tmp115 = tmp113 - tmp114;
		74	tmp121 = tmp113 + tmp114;
		75	}
		76	{
		77	fftw_real tmp106;
		78	fftw_real tmp107;
		79	fftw_real tmp110;
		80	fftw_real tmp111;
		81	ASSERT_ALIGNED_DOUBLE();
		82	tmp106 = X[2 * iostride];
		83	tmp107 = X[6 * iostride];
		84	tmp108 = tmp106 + tmp107;
		85	tmp118 = tmp106 - tmp107;
		86	tmp110 = X[iostride];
		87	tmp111 = X[5 * iostride];
		88	tmp112 = tmp110 - tmp111;
		89	tmp120 = tmp110 + tmp111;
		90	}
		91	{
		92	fftw_real tmp119;
		93	fftw_real tmp122;
		94	fftw_real tmp116;
		95	fftw_real tmp117;
		96	ASSERT_ALIGNED_DOUBLE();
		97	X[2 * iostride] = tmp105 - tmp108;
		98	tmp119 = tmp105 + tmp108;
		99	tmp122 = tmp120 + tmp121;
		100	X[4 * iostride] = tmp119 - tmp122;
		101	X[0] = tmp119 + tmp122;
		102	Y[-2 * iostride] = tmp121 - tmp120;
		103	tmp116 = K707106781 * (tmp112 + tmp115);
		104	X[3 * iostride] = tmp109 - tmp116;
		105	X[iostride] = tmp109 + tmp116;
		106	tmp117 = K707106781 * (tmp115 - tmp112);
		107	Y[-iostride] = tmp117 - tmp118;
		108	Y[-3 * iostride] = tmp118 + tmp117;
		109	}
		110	}
		111	X = X + dist;
		112	Y = Y - dist;
		113	for (i = 2; i < m; i = i + 2, X = X + dist, Y = Y - dist, W = W + 7) {
		114	fftw_real tmp29;
		115	fftw_real tmp65;
		116	fftw_real tmp92;
		117	fftw_real tmp97;
		118	fftw_real tmp63;
		119	fftw_real tmp75;
		120	fftw_real tmp78;
		121	fftw_real tmp87;
		122	fftw_real tmp40;
		123	fftw_real tmp98;
		124	fftw_real tmp68;
		125	fftw_real tmp89;
		126	fftw_real tmp52;
		127	fftw_real tmp70;
		128	fftw_real tmp73;
		129	fftw_real tmp86;
		130	ASSERT_ALIGNED_DOUBLE();
		131	{
		132	fftw_real tmp23;
		133	fftw_real tmp91;
		134	fftw_real tmp28;
		135	fftw_real tmp90;
		136	ASSERT_ALIGNED_DOUBLE();
		137	tmp23 = X[0];
		138	tmp91 = Y[-7 * iostride];
		139	{
		140	fftw_real tmp25;
		141	fftw_real tmp27;
		142	fftw_real tmp24;
		143	fftw_real tmp26;
		144	ASSERT_ALIGNED_DOUBLE();
		145	tmp25 = X[4 * iostride];
		146	tmp27 = Y[-3 * iostride];
		147	tmp24 = c_re(W[3]);
		148	tmp26 = c_im(W[3]);
		149	tmp28 = (tmp24 * tmp25) - (tmp26 * tmp27);
		150	tmp90 = (tmp26 * tmp25) + (tmp24 * tmp27);
		151	}
		152	tmp29 = tmp23 + tmp28;
		153	tmp65 = tmp23 - tmp28;
		154	tmp92 = tmp90 + tmp91;
		155	tmp97 = tmp91 - tmp90;
		156	}
		157	{
		158	fftw_real tmp57;
		159	fftw_real tmp76;
		160	fftw_real tmp62;
		161	fftw_real tmp77;
		162	ASSERT_ALIGNED_DOUBLE();
		163	{
		164	fftw_real tmp54;
		165	fftw_real tmp56;
		166	fftw_real tmp53;
		167	fftw_real tmp55;
		168	ASSERT_ALIGNED_DOUBLE();
		169	tmp54 = X[7 * iostride];
		170	tmp56 = Y[0];
		171	tmp53 = c_re(W[6]);
		172	tmp55 = c_im(W[6]);
		173	tmp57 = (tmp53 * tmp54) - (tmp55 * tmp56);
		174	tmp76 = (tmp55 * tmp54) + (tmp53 * tmp56);
		175	}
		176	{
		177	fftw_real tmp59;
		178	fftw_real tmp61;
		179	fftw_real tmp58;
		180	fftw_real tmp60;
		181	ASSERT_ALIGNED_DOUBLE();
		182	tmp59 = X[3 * iostride];
		183	tmp61 = Y[-4 * iostride];
		184	tmp58 = c_re(W[2]);
		185	tmp60 = c_im(W[2]);
		186	tmp62 = (tmp58 * tmp59) - (tmp60 * tmp61);
		187	tmp77 = (tmp60 * tmp59) + (tmp58 * tmp61);
		188	}
		189	tmp63 = tmp57 + tmp62;
		190	tmp75 = tmp57 - tmp62;
		191	tmp78 = tmp76 - tmp77;
		192	tmp87 = tmp76 + tmp77;
		193	}
		194	{
		195	fftw_real tmp34;
		196	fftw_real tmp66;
		197	fftw_real tmp39;
		198	fftw_real tmp67;
		199	ASSERT_ALIGNED_DOUBLE();
		200	{
		201	fftw_real tmp31;
		202	fftw_real tmp33;
		203	fftw_real tmp30;
		204	fftw_real tmp32;
		205	ASSERT_ALIGNED_DOUBLE();
		206	tmp31 = X[2 * iostride];
		207	tmp33 = Y[-5 * iostride];
		208	tmp30 = c_re(W[1]);
		209	tmp32 = c_im(W[1]);
		210	tmp34 = (tmp30 * tmp31) - (tmp32 * tmp33);
		211	tmp66 = (tmp32 * tmp31) + (tmp30 * tmp33);
		212	}
		213	{
		214	fftw_real tmp36;
		215	fftw_real tmp38;
		216	fftw_real tmp35;
		217	fftw_real tmp37;
		218	ASSERT_ALIGNED_DOUBLE();
		219	tmp36 = X[6 * iostride];
		220	tmp38 = Y[-iostride];
		221	tmp35 = c_re(W[5]);
		222	tmp37 = c_im(W[5]);
		223	tmp39 = (tmp35 * tmp36) - (tmp37 * tmp38);
		224	tmp67 = (tmp37 * tmp36) + (tmp35 * tmp38);
		225	}
		226	tmp40 = tmp34 + tmp39;
		227	tmp98 = tmp34 - tmp39;
		228	tmp68 = tmp66 - tmp67;
		229	tmp89 = tmp66 + tmp67;
		230	}
		231	{
		232	fftw_real tmp46;
		233	fftw_real tmp71;
		234	fftw_real tmp51;
		235	fftw_real tmp72;
		236	ASSERT_ALIGNED_DOUBLE();
		237	{
		238	fftw_real tmp43;
		239	fftw_real tmp45;
		240	fftw_real tmp42;
		241	fftw_real tmp44;
		242	ASSERT_ALIGNED_DOUBLE();
		243	tmp43 = X[iostride];
		244	tmp45 = Y[-6 * iostride];
		245	tmp42 = c_re(W[0]);
		246	tmp44 = c_im(W[0]);
		247	tmp46 = (tmp42 * tmp43) - (tmp44 * tmp45);
		248	tmp71 = (tmp44 * tmp43) + (tmp42 * tmp45);
		249	}
		250	{
		251	fftw_real tmp48;
		252	fftw_real tmp50;
		253	fftw_real tmp47;
		254	fftw_real tmp49;
		255	ASSERT_ALIGNED_DOUBLE();
		256	tmp48 = X[5 * iostride];
		257	tmp50 = Y[-2 * iostride];
		258	tmp47 = c_re(W[4]);
		259	tmp49 = c_im(W[4]);
		260	tmp51 = (tmp47 * tmp48) - (tmp49 * tmp50);
		261	tmp72 = (tmp49 * tmp48) + (tmp47 * tmp50);
		262	}
		263	tmp52 = tmp46 + tmp51;
		264	tmp70 = tmp46 - tmp51;
		265	tmp73 = tmp71 - tmp72;
		266	tmp86 = tmp71 + tmp72;
		267	}
		268	{
		269	fftw_real tmp41;
		270	fftw_real tmp64;
		271	fftw_real tmp85;
		272	fftw_real tmp88;
		273	ASSERT_ALIGNED_DOUBLE();
		274	tmp41 = tmp29 + tmp40;
		275	tmp64 = tmp52 + tmp63;
		276	Y[-4 * iostride] = tmp41 - tmp64;
		277	X[0] = tmp41 + tmp64;
		278	{
		279	fftw_real tmp95;
		280	fftw_real tmp96;
		281	fftw_real tmp93;
		282	fftw_real tmp94;
		283	ASSERT_ALIGNED_DOUBLE();
		284	tmp95 = tmp92 - tmp89;
		285	tmp96 = tmp63 - tmp52;
		286	X[6 * iostride] = -(tmp95 - tmp96);
		287	Y[-2 * iostride] = tmp96 + tmp95;
		288	tmp93 = tmp89 + tmp92;
		289	tmp94 = tmp86 + tmp87;
		290	X[4 * iostride] = -(tmp93 - tmp94);
		291	Y[0] = tmp94 + tmp93;
		292	}
		293	tmp85 = tmp29 - tmp40;
		294	tmp88 = tmp86 - tmp87;
		295	Y[-6 * iostride] = tmp85 - tmp88;
		296	X[2 * iostride] = tmp85 + tmp88;
		297	{
		298	fftw_real tmp81;
		299	fftw_real tmp99;
		300	fftw_real tmp84;
		301	fftw_real tmp100;
		302	fftw_real tmp82;
		303	fftw_real tmp83;
		304	ASSERT_ALIGNED_DOUBLE();
		305	tmp81 = tmp65 - tmp68;
		306	tmp99 = tmp97 - tmp98;
		307	tmp82 = tmp73 - tmp70;
		308	tmp83 = tmp75 + tmp78;
		309	tmp84 = K707106781 * (tmp82 - tmp83);
		310	tmp100 = K707106781 * (tmp82 + tmp83);
		311	Y[-7 * iostride] = tmp81 - tmp84;
		312	X[3 * iostride] = tmp81 + tmp84;
		313	X[5 * iostride] = -(tmp99 - tmp100);
		314	Y[-iostride] = tmp100 + tmp99;
		315	}
		316	{
		317	fftw_real tmp69;
		318	fftw_real tmp101;
		319	fftw_real tmp80;
		320	fftw_real tmp102;
		321	fftw_real tmp74;
		322	fftw_real tmp79;
		323	ASSERT_ALIGNED_DOUBLE();
		324	tmp69 = tmp65 + tmp68;
		325	tmp101 = tmp98 + tmp97;
		326	tmp74 = tmp70 + tmp73;
		327	tmp79 = tmp75 - tmp78;
		328	tmp80 = K707106781 * (tmp74 + tmp79);
		329	tmp102 = K707106781 * (tmp79 - tmp74);
		330	Y[-5 * iostride] = tmp69 - tmp80;
		331	X[iostride] = tmp69 + tmp80;
		332	X[7 * iostride] = -(tmp101 - tmp102);
		333	Y[-3 * iostride] = tmp102 + tmp101;
		334	}
		335	}
		336	}
		337	if (i == m) {
		338	fftw_real tmp1;
		339	fftw_real tmp19;
		340	fftw_real tmp4;
		341	fftw_real tmp18;
		342	fftw_real tmp8;
		343	fftw_real tmp14;
		344	fftw_real tmp11;
		345	fftw_real tmp15;
		346	fftw_real tmp2;
		347	fftw_real tmp3;
		348	ASSERT_ALIGNED_DOUBLE();
		349	tmp1 = X[0];
		350	tmp19 = X[4 * iostride];
		351	tmp2 = X[2 * iostride];
		352	tmp3 = X[6 * iostride];
		353	tmp4 = K707106781 * (tmp2 - tmp3);
		354	tmp18 = K707106781 * (tmp2 + tmp3);
		355	{
		356	fftw_real tmp6;
		357	fftw_real tmp7;
		358	fftw_real tmp9;
		359	fftw_real tmp10;
		360	ASSERT_ALIGNED_DOUBLE();
		361	tmp6 = X[iostride];
		362	tmp7 = X[5 * iostride];
		363	tmp8 = (K923879532 * tmp6) - (K382683432 * tmp7);
		364	tmp14 = (K382683432 * tmp6) + (K923879532 * tmp7);
		365	tmp9 = X[3 * iostride];
		366	tmp10 = X[7 * iostride];
		367	tmp11 = (K382683432 * tmp9) - (K923879532 * tmp10);
		368	tmp15 = (K923879532 * tmp9) + (K382683432 * tmp10);
		369	}
		370	{
		371	fftw_real tmp5;
		372	fftw_real tmp12;
		373	fftw_real tmp21;
		374	fftw_real tmp22;
		375	ASSERT_ALIGNED_DOUBLE();
		376	tmp5 = tmp1 + tmp4;
		377	tmp12 = tmp8 + tmp11;
		378	X[3 * iostride] = tmp5 - tmp12;
		379	X[0] = tmp5 + tmp12;
		380	tmp21 = tmp11 - tmp8;
		381	tmp22 = tmp19 - tmp18;
		382	Y[-2 * iostride] = tmp21 - tmp22;
		383	Y[-iostride] = tmp21 + tmp22;
		384	}
		385	{
		386	fftw_real tmp17;
		387	fftw_real tmp20;
		388	fftw_real tmp13;
		389	fftw_real tmp16;
		390	ASSERT_ALIGNED_DOUBLE();
		391	tmp17 = tmp14 + tmp15;
		392	tmp20 = tmp18 + tmp19;
		393	Y[0] = -(tmp17 + tmp20);
		394	Y[-3 * iostride] = tmp20 - tmp17;
		395	tmp13 = tmp1 - tmp4;
		396	tmp16 = tmp14 - tmp15;
		397	X[2 * iostride] = tmp13 - tmp16;
		398	X[iostride] = tmp13 + tmp16;
		399	}
		400	}
		401	}
		402
		403	static const int twiddle_order[] =
		404	{1, 2, 3, 4, 5, 6, 7};
		405	fftw_codelet_desc fftw_hc2hc_forward_8_desc =
		406	{
		407	"fftw_hc2hc_forward_8",
		408	(void (*)()) fftw_hc2hc_forward_8,
		409	8,
		410	FFTW_FORWARD,
		411	FFTW_HC2HC,
		412	179,
		413	7,
		414	twiddle_order,
		415	};

Subversion Repositories shark

(root)/shark/branches/xen/ports/fftw/rfftw/fhf_8.c - Rev 1618