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 13:55:30 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 5 */
		27
		28	/*
		29	* This function contains 64 FP additions, 40 FP multiplications,
		30	* (or, 44 additions, 20 multiplications, 20 fused multiply/add),
		31	* 27 stack variables, and 40 memory accesses
		32	*/
		33	static const fftw_real K250000000 = FFTW_KONST(+0.250000000000000000000000000000000000000000000);
		34	static const fftw_real K559016994 = FFTW_KONST(+0.559016994374947424102293417182819058860154590);
		35	static const fftw_real K587785252 = FFTW_KONST(+0.587785252292473129168705954639072768597652438);
		36	static const fftw_real K951056516 = FFTW_KONST(+0.951056516295153572116439333379382143405698634);
		37
		38	/*
		39	* Generator Id's :
107	pj	40	* $Id: fhf_5.c,v 1.2 2003-03-24 11:14:58 pj Exp $
		41	* $Id: fhf_5.c,v 1.2 2003-03-24 11:14:58 pj Exp $
		42	* $Id: fhf_5.c,v 1.2 2003-03-24 11:14:58 pj Exp $
2	pj	43	*/
		44
		45	void fftw_hc2hc_forward_5(fftw_real A, const fftw_complex W, int iostride, int m, int dist)
		46	{
		47	int i;
		48	fftw_real *X;
		49	fftw_real *Y;
		50	X = A;
		51	Y = A + (5 * iostride);
		52	{
		53	fftw_real tmp70;
		54	fftw_real tmp67;
		55	fftw_real tmp68;
		56	fftw_real tmp63;
		57	fftw_real tmp71;
		58	fftw_real tmp66;
		59	fftw_real tmp69;
		60	fftw_real tmp72;
		61	ASSERT_ALIGNED_DOUBLE();
		62	tmp70 = X[0];
		63	{
		64	fftw_real tmp61;
		65	fftw_real tmp62;
		66	fftw_real tmp64;
		67	fftw_real tmp65;
		68	ASSERT_ALIGNED_DOUBLE();
		69	tmp61 = X[4 * iostride];
		70	tmp62 = X[iostride];
		71	tmp67 = tmp62 + tmp61;
		72	tmp64 = X[2 * iostride];
		73	tmp65 = X[3 * iostride];
		74	tmp68 = tmp64 + tmp65;
		75	tmp63 = tmp61 - tmp62;
		76	tmp71 = tmp67 + tmp68;
		77	tmp66 = tmp64 - tmp65;
		78	}
		79	Y[-iostride] = (K951056516 * tmp63) - (K587785252 * tmp66);
		80	Y[-2 * iostride] = (K587785252 * tmp63) + (K951056516 * tmp66);
		81	X[0] = tmp70 + tmp71;
		82	tmp69 = K559016994 * (tmp67 - tmp68);
		83	tmp72 = tmp70 - (K250000000 * tmp71);
		84	X[iostride] = tmp69 + tmp72;
		85	X[2 * iostride] = tmp72 - tmp69;
		86	}
		87	X = X + dist;
		88	Y = Y - dist;
		89	for (i = 2; i < m; i = i + 2, X = X + dist, Y = Y - dist, W = W + 4) {
		90	fftw_real tmp13;
		91	fftw_real tmp52;
		92	fftw_real tmp42;
		93	fftw_real tmp45;
		94	fftw_real tmp49;
		95	fftw_real tmp50;
		96	fftw_real tmp51;
		97	fftw_real tmp54;
		98	fftw_real tmp53;
		99	fftw_real tmp24;
		100	fftw_real tmp35;
		101	fftw_real tmp36;
		102	ASSERT_ALIGNED_DOUBLE();
		103	tmp13 = X[0];
		104	tmp52 = Y[-4 * iostride];
		105	{
		106	fftw_real tmp18;
		107	fftw_real tmp40;
		108	fftw_real tmp34;
		109	fftw_real tmp44;
		110	fftw_real tmp23;
		111	fftw_real tmp41;
		112	fftw_real tmp29;
		113	fftw_real tmp43;
		114	ASSERT_ALIGNED_DOUBLE();
		115	{
		116	fftw_real tmp15;
		117	fftw_real tmp17;
		118	fftw_real tmp14;
		119	fftw_real tmp16;
		120	ASSERT_ALIGNED_DOUBLE();
		121	tmp15 = X[iostride];
		122	tmp17 = Y[-3 * iostride];
		123	tmp14 = c_re(W[0]);
		124	tmp16 = c_im(W[0]);
		125	tmp18 = (tmp14 * tmp15) - (tmp16 * tmp17);
		126	tmp40 = (tmp16 * tmp15) + (tmp14 * tmp17);
		127	}
		128	{
		129	fftw_real tmp31;
		130	fftw_real tmp33;
		131	fftw_real tmp30;
		132	fftw_real tmp32;
		133	ASSERT_ALIGNED_DOUBLE();
		134	tmp31 = X[3 * iostride];
		135	tmp33 = Y[-iostride];
		136	tmp30 = c_re(W[2]);
		137	tmp32 = c_im(W[2]);
		138	tmp34 = (tmp30 * tmp31) - (tmp32 * tmp33);
		139	tmp44 = (tmp32 * tmp31) + (tmp30 * tmp33);
		140	}
		141	{
		142	fftw_real tmp20;
		143	fftw_real tmp22;
		144	fftw_real tmp19;
		145	fftw_real tmp21;
		146	ASSERT_ALIGNED_DOUBLE();
		147	tmp20 = X[4 * iostride];
		148	tmp22 = Y[0];
		149	tmp19 = c_re(W[3]);
		150	tmp21 = c_im(W[3]);
		151	tmp23 = (tmp19 * tmp20) - (tmp21 * tmp22);
		152	tmp41 = (tmp21 * tmp20) + (tmp19 * tmp22);
		153	}
		154	{
		155	fftw_real tmp26;
		156	fftw_real tmp28;
		157	fftw_real tmp25;
		158	fftw_real tmp27;
		159	ASSERT_ALIGNED_DOUBLE();
		160	tmp26 = X[2 * iostride];
		161	tmp28 = Y[-2 * iostride];
		162	tmp25 = c_re(W[1]);
		163	tmp27 = c_im(W[1]);
		164	tmp29 = (tmp25 * tmp26) - (tmp27 * tmp28);
		165	tmp43 = (tmp27 * tmp26) + (tmp25 * tmp28);
		166	}
		167	tmp42 = tmp40 - tmp41;
		168	tmp45 = tmp43 - tmp44;
		169	tmp49 = tmp40 + tmp41;
		170	tmp50 = tmp43 + tmp44;
		171	tmp51 = tmp49 + tmp50;
		172	tmp54 = tmp29 - tmp34;
		173	tmp53 = tmp18 - tmp23;
		174	tmp24 = tmp18 + tmp23;
		175	tmp35 = tmp29 + tmp34;
		176	tmp36 = tmp24 + tmp35;
		177	}
		178	X[0] = tmp13 + tmp36;
		179	{
		180	fftw_real tmp46;
		181	fftw_real tmp48;
		182	fftw_real tmp39;
		183	fftw_real tmp47;
		184	fftw_real tmp37;
		185	fftw_real tmp38;
		186	ASSERT_ALIGNED_DOUBLE();
		187	tmp46 = (K951056516 * tmp42) + (K587785252 * tmp45);
		188	tmp48 = (K951056516 * tmp45) - (K587785252 * tmp42);
		189	tmp37 = K559016994 * (tmp24 - tmp35);
		190	tmp38 = tmp13 - (K250000000 * tmp36);
		191	tmp39 = tmp37 + tmp38;
		192	tmp47 = tmp38 - tmp37;
		193	Y[-4 * iostride] = tmp39 - tmp46;
		194	X[iostride] = tmp39 + tmp46;
		195	X[2 * iostride] = tmp47 - tmp48;
		196	Y[-3 * iostride] = tmp47 + tmp48;
		197	}
		198	Y[0] = tmp51 + tmp52;
		199	{
		200	fftw_real tmp55;
		201	fftw_real tmp60;
		202	fftw_real tmp58;
		203	fftw_real tmp59;
		204	fftw_real tmp56;
		205	fftw_real tmp57;
		206	ASSERT_ALIGNED_DOUBLE();
		207	tmp55 = (K951056516 * tmp53) + (K587785252 * tmp54);
		208	tmp60 = (K951056516 * tmp54) - (K587785252 * tmp53);
		209	tmp56 = K559016994 * (tmp49 - tmp50);
		210	tmp57 = tmp52 - (K250000000 * tmp51);
		211	tmp58 = tmp56 + tmp57;
		212	tmp59 = tmp57 - tmp56;
		213	X[4 * iostride] = -(tmp55 + tmp58);
		214	Y[-iostride] = tmp58 - tmp55;
		215	X[3 * iostride] = -(tmp59 - tmp60);
		216	Y[-2 * iostride] = tmp60 + tmp59;
		217	}
		218	}
		219	if (i == m) {
		220	fftw_real tmp8;
		221	fftw_real tmp3;
		222	fftw_real tmp6;
		223	fftw_real tmp9;
		224	fftw_real tmp12;
		225	fftw_real tmp11;
		226	fftw_real tmp7;
		227	fftw_real tmp10;
		228	ASSERT_ALIGNED_DOUBLE();
		229	tmp8 = X[0];
		230	{
		231	fftw_real tmp1;
		232	fftw_real tmp2;
		233	fftw_real tmp4;
		234	fftw_real tmp5;
		235	ASSERT_ALIGNED_DOUBLE();
		236	tmp1 = X[2 * iostride];
		237	tmp2 = X[3 * iostride];
		238	tmp3 = tmp1 - tmp2;
		239	tmp4 = X[4 * iostride];
		240	tmp5 = X[iostride];
		241	tmp6 = tmp4 - tmp5;
		242	tmp9 = tmp3 + tmp6;
		243	tmp12 = tmp4 + tmp5;
		244	tmp11 = tmp1 + tmp2;
		245	}
		246	X[2 * iostride] = tmp8 + tmp9;
		247	tmp7 = K559016994 * (tmp3 - tmp6);
		248	tmp10 = tmp8 - (K250000000 * tmp9);
		249	X[0] = tmp7 + tmp10;
		250	X[iostride] = tmp10 - tmp7;
		251	Y[0] = -((K951056516 * tmp11) + (K587785252 * tmp12));
		252	Y[-iostride] = -((K951056516 * tmp12) - (K587785252 * tmp11));
		253	}
		254	}
		255
		256	static const int twiddle_order[] =
		257	{1, 2, 3, 4};
		258	fftw_codelet_desc fftw_hc2hc_forward_5_desc =
		259	{
		260	"fftw_hc2hc_forward_5",
		261	(void (*)()) fftw_hc2hc_forward_5,
		262	5,
		263	FFTW_FORWARD,
		264	FFTW_HC2HC,
		265	113,
		266	4,
		267	twiddle_order,
		268	};

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(root)/shark/branches/xen/ports/fftw/rfftw/fhf_5.c - Rev 1618