|
1 /* |
|
2 * LIBOIL - Library of Optimized Inner Loops |
|
3 * Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org> |
|
4 * All rights reserved. |
|
5 * |
|
6 * Redistribution and use in source and binary forms, with or without |
|
7 * modification, are permitted provided that the following conditions |
|
8 * are met: |
|
9 * 1. Redistributions of source code must retain the above copyright |
|
10 * notice, this list of conditions and the following disclaimer. |
|
11 * 2. Redistributions in binary form must reproduce the above copyright |
|
12 * notice, this list of conditions and the following disclaimer in the |
|
13 * documentation and/or other materials provided with the distribution. |
|
14 * |
|
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
|
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
|
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
|
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
|
19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
|
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
|
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
|
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
|
23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
|
24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
|
25 * POSSIBILITY OF SUCH DAMAGE. |
|
26 */ |
|
27 //Portions Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. |
|
28 |
|
29 #ifdef HAVE_CONFIG_H |
|
30 #include "config.h" |
|
31 #endif |
|
32 |
|
33 #include <liboil/liboilfunction.h> |
|
34 #include "liboil/simdpack/simdpack.h" |
|
35 #include <math.h> |
|
36 |
|
37 static void |
|
38 diffsquaresum_f64_i10_simple(double *dest, double *src1, int sstr1, double *src2, |
|
39 int sstr2, int n) |
|
40 { |
|
41 double sum = 0; |
|
42 double x; |
|
43 int i; |
|
44 |
|
45 for(i=0;i<n;i++){ |
|
46 x = OIL_GET(src1, i*sstr1, double) - |
|
47 OIL_GET(src2, i*sstr2, double); |
|
48 x = x*x; |
|
49 sum += x; |
|
50 } |
|
51 |
|
52 *dest = sum; |
|
53 } |
|
54 OIL_DEFINE_IMPL (diffsquaresum_f64_i10_simple, diffsquaresum_f64); |
|
55 |
|
56 static void |
|
57 diffsquaresum_f64_i10_fast(double *dest, double *src1, int sstr1, double *src2, |
|
58 int sstr2, int n) |
|
59 { |
|
60 double sum0 = 0; |
|
61 double x; |
|
62 |
|
63 while(n>0){ |
|
64 x = *src1 - *src2; |
|
65 sum0 += x * x; |
|
66 OIL_INCREMENT (src1, sstr1); |
|
67 OIL_INCREMENT (src2, sstr2); |
|
68 n--; |
|
69 } |
|
70 |
|
71 *dest = sum0; |
|
72 } |
|
73 OIL_DEFINE_IMPL (diffsquaresum_f64_i10_fast, diffsquaresum_f64); |
|
74 |
|
75 static void |
|
76 diffsquaresum_f64_i10_unroll2(double *dest, double *src1, int sstr1, double *src2, |
|
77 int sstr2, int n) |
|
78 { |
|
79 double sum0 = 0; |
|
80 double sum1 = 0; |
|
81 double x; |
|
82 |
|
83 if(n&1){ |
|
84 x = *src1 - *src2; |
|
85 sum0 += x * x; |
|
86 OIL_INCREMENT (src1, sstr1); |
|
87 OIL_INCREMENT (src2, sstr2); |
|
88 n--; |
|
89 } |
|
90 while(n>0){ |
|
91 x = *src1 - *src2; |
|
92 sum0 += x * x; |
|
93 OIL_INCREMENT (src1, sstr1); |
|
94 OIL_INCREMENT (src2, sstr2); |
|
95 x = *src1 - *src2; |
|
96 sum1 += x * x; |
|
97 OIL_INCREMENT (src1, sstr1); |
|
98 OIL_INCREMENT (src2, sstr2); |
|
99 n-=2; |
|
100 } |
|
101 |
|
102 *dest = sum0 + sum1; |
|
103 } |
|
104 OIL_DEFINE_IMPL (diffsquaresum_f64_i10_unroll2, diffsquaresum_f64); |
|
105 |
|
106 static void |
|
107 diffsquaresum_f64_i10_unroll4(double *dest, double *src1, int sstr1, |
|
108 double *src2, int sstr2, int n) |
|
109 { |
|
110 double sum0 = 0; |
|
111 double sum1 = 0; |
|
112 double sum2 = 0; |
|
113 double sum3 = 0; |
|
114 double x; |
|
115 |
|
116 while(n&3){ |
|
117 x = *src1 - *src2; |
|
118 sum0 += x * x; |
|
119 OIL_INCREMENT (src1, sstr1); |
|
120 OIL_INCREMENT (src2, sstr2); |
|
121 n--; |
|
122 } |
|
123 while(n>0){ |
|
124 x = *src1 - *src2; |
|
125 sum0 += x * x; |
|
126 OIL_INCREMENT (src1, sstr1); |
|
127 OIL_INCREMENT (src2, sstr2); |
|
128 x = *src1 - *src2; |
|
129 sum1 += x * x; |
|
130 OIL_INCREMENT (src1, sstr1); |
|
131 OIL_INCREMENT (src2, sstr2); |
|
132 x = *src1 - *src2; |
|
133 sum2 += x * x; |
|
134 OIL_INCREMENT (src1, sstr1); |
|
135 OIL_INCREMENT (src2, sstr2); |
|
136 x = *src1 - *src2; |
|
137 sum3 += x * x; |
|
138 OIL_INCREMENT (src1, sstr1); |
|
139 OIL_INCREMENT (src2, sstr2); |
|
140 n-=4; |
|
141 } |
|
142 |
|
143 *dest = sum0 + sum1 + sum2 + sum3; |
|
144 } |
|
145 OIL_DEFINE_IMPL (diffsquaresum_f64_i10_unroll4, diffsquaresum_f64); |
|
146 |
|
147 |
|
148 |
|
149 |
|
150 #ifdef __SYMBIAN32__ |
|
151 |
|
152 OilFunctionImpl* __oil_function_impl_diffsquaresum_f64_i10_simple() { |
|
153 return &_oil_function_impl_diffsquaresum_f64_i10_simple; |
|
154 } |
|
155 #endif |
|
156 |
|
157 #ifdef __SYMBIAN32__ |
|
158 |
|
159 OilFunctionImpl* __oil_function_impl_diffsquaresum_f64_i10_fast() { |
|
160 return &_oil_function_impl_diffsquaresum_f64_i10_fast; |
|
161 } |
|
162 #endif |
|
163 |
|
164 #ifdef __SYMBIAN32__ |
|
165 |
|
166 OilFunctionImpl* __oil_function_impl_diffsquaresum_f64_i10_unroll2() { |
|
167 return &_oil_function_impl_diffsquaresum_f64_i10_unroll2; |
|
168 } |
|
169 #endif |
|
170 |
|
171 #ifdef __SYMBIAN32__ |
|
172 |
|
173 OilFunctionImpl* __oil_function_impl_diffsquaresum_f64_i10_unroll4() { |
|
174 return &_oil_function_impl_diffsquaresum_f64_i10_unroll4; |
|
175 } |
|
176 #endif |
|
177 |