Annotation of OpenXM_contrib/gmp/tests/devel/lshift.c, Revision 1.1.1.1
1.1 ohara 1: /*
2: Copyright 1996, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
3:
4: This file is part of the GNU MP Library.
5:
6: The GNU MP Library is free software; you can redistribute it and/or modify
7: it under the terms of the GNU Lesser General Public License as published by
8: the Free Software Foundation; either version 2.1 of the License, or (at your
9: option) any later version.
10:
11: The GNU MP Library is distributed in the hope that it will be useful, but
12: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13: or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
14: License for more details.
15:
16: You should have received a copy of the GNU Lesser General Public License
17: along with the GNU MP Library; see the file COPYING.LIB. If not, write to
18: the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
19: MA 02111-1307, USA.
20: */
21:
22: #include <stdio.h>
23: #include "gmp.h"
24: #include "gmp-impl.h"
25:
26: #if defined (USG) || defined (__SVR4) || defined (_UNICOS) || defined (__hpux)
27: #include <time.h>
28:
29: int
30: cputime ()
31: {
32: if (CLOCKS_PER_SEC < 100000)
33: return clock () * 1000 / CLOCKS_PER_SEC;
34: return clock () / (CLOCKS_PER_SEC / 1000);
35: }
36: #else
37: #include <sys/types.h>
38: #include <sys/time.h>
39: #include <sys/resource.h>
40:
41: int
42: cputime ()
43: {
44: struct rusage rus;
45:
46: getrusage (0, &rus);
47: return rus.ru_utime.tv_sec * 1000 + rus.ru_utime.tv_usec / 1000;
48: }
49: #endif
50:
51: #define M * 1000000
52:
53: #ifndef CLOCK
54: #error "Don't know CLOCK of your machine"
55: #endif
56:
57: #ifndef OPS
58: #define OPS (CLOCK/5)
59: #endif
60: #ifndef SIZE
61: #define SIZE 496
62: #endif
63: #ifndef TIMES
64: #define TIMES OPS/SIZE
65: #else
66: #undef OPS
67: #define OPS (SIZE*TIMES)
68: #endif
69:
70: mp_limb_t
71: refmpn_lshift (wp, up, usize, cnt)
72: register mp_ptr wp;
73: register mp_srcptr up;
74: mp_size_t usize;
75: register unsigned int cnt;
76: {
77: register mp_limb_t high_limb, low_limb;
78: register unsigned sh_1, sh_2;
79: register mp_size_t i;
80: mp_limb_t retval;
81:
82: #ifdef DEBUG
83: if (usize == 0 || cnt == 0)
84: abort ();
85: #endif
86:
87: sh_1 = cnt;
88: #if 0
89: if (sh_1 == 0)
90: {
91: if (wp != up)
92: {
93: /* Copy from high end to low end, to allow specified input/output
94: overlapping. */
95: for (i = usize - 1; i >= 0; i--)
96: wp[i] = up[i];
97: }
98: return 0;
99: }
100: #endif
101:
102: wp += 1;
103: sh_2 = BITS_PER_MP_LIMB - sh_1;
104: i = usize - 1;
105: low_limb = up[i];
106: retval = low_limb >> sh_2;
107: high_limb = low_limb;
108: while (--i >= 0)
109: {
110: low_limb = up[i];
111: wp[i] = (high_limb << sh_1) | (low_limb >> sh_2);
112: high_limb = low_limb;
113: }
114: wp[i] = high_limb << sh_1;
115:
116: return retval;
117: }
118:
119: #ifndef CNT
120: #define CNT 4
121: #endif
122:
123: main (argc, argv)
124: int argc;
125: char **argv;
126: {
127: mp_limb_t s1[SIZE];
128: mp_limb_t dx[SIZE+2];
129: mp_limb_t dy[SIZE+2];
130: mp_limb_t cyx, cyy;
131: int i;
132: long t0, t;
133: int test;
134: int cnt = CNT;
135: mp_size_t size;
136:
137: for (test = 0; ; test++)
138: {
139: #if TIMES == 1 && ! defined (PRINT)
140: if (test % (SIZE > 10000 ? 1 : 10000 / SIZE) == 0)
141: {
142: printf ("\r%d", test);
143: fflush (stdout);
144: }
145: #endif
146:
147: #if TIMES == 1
148: cnt = random () % (BITS_PER_MP_LIMB - 1) + 1;
149: #endif
150:
151: #ifdef RANDOM
152: size = random () % SIZE + 1;
153: #else
154: size = SIZE;
155: #endif
156: mpn_random2 (s1, size);
157:
158: dx[size+1] = 0x12345678;
159: dy[size+1] = 0x12345678;
160: dx[0] = 0x87654321;
161: dy[0] = 0x87654321;
162:
163: #if TIMES != 1
164: mpn_random (s1, size);
165:
166: #ifndef NOCHECK
167: t0 = cputime();
168: for (i = 0; i < TIMES; i++)
169: refmpn_lshift (dx+1, s1, size, cnt);
170: t = cputime() - t0;
171: printf ("refmpn_lshift: %5ldms (%.2f cycles/limb)\n",
172: t, ((double) t * CLOCK) / (OPS * 1000.0));
173: #endif
174:
175: t0 = cputime();
176: for (i = 0; i < TIMES; i++)
177: mpn_lshift (dx+1, s1, size, cnt);
178: t = cputime() - t0;
179: printf ("mpn_lshift: %5ldms (%.2f cycles/limb)\n",
180: t, ((double) t * CLOCK) / (OPS * 1000.0));
181: #endif
182:
183: #ifndef NOCHECK
184: mpn_random2 (s1, size);
185:
186: #ifdef PRINT
187: printf ("%-*d ", (int) (2 * sizeof(mp_limb_t)), cnt); mpn_print (s1, size);
188: #endif
189:
190: /* Put garbage in the destination. */
191: for (i = 0; i < size; i++)
192: {
193: dx[i+1] = 0xdead;
194: dy[i+1] = 0xbeef;
195: }
196:
197: cyx = refmpn_lshift (dx+1, s1, size, cnt);
198: cyy = mpn_lshift (dy+1, s1, size, cnt);
199: #ifdef PRINT
200: printf ("%*lX ", (int) (2 * sizeof(mp_limb_t)), cyx);
201: mpn_print (dx+1, size);
202: printf ("%*lX ", (int) (2 * sizeof(mp_limb_t)), cyy);
203: mpn_print (dy+1, size);
204: #endif
205: if (cyx != cyy || mpn_cmp (dx, dy, size+2) != 0
206: || dx[0] != 0x87654321 || dx[size+1] != 0x12345678)
207: {
208: #ifndef PRINT
209: printf ("%*lX ", (int) (2 * sizeof(mp_limb_t)), cyx);
210: mpn_print (dx+1, size);
211: printf ("%*lX ", (int) (2 * sizeof(mp_limb_t)), cyy);
212: mpn_print (dy+1, size);
213: #endif
214: printf ("\n");
215: if (dy[0] != 0x87654321)
216: printf ("clobbered at low end\n");
217: if (dy[size+1] != 0x12345678)
218: printf ("clobbered at high end\n");
219: printf ("TEST NUMBER %u\n", test);
220: abort();
221: }
222: #endif
223: }
224: }
225:
226: mpn_print (mp_ptr p, mp_size_t size)
227: {
228: mp_size_t i;
229:
230: for (i = size - 1; i >= 0; i--)
231: {
232: #ifdef _LONG_LONG_LIMB
233: printf ("%0*lX%0*lX", (int) (sizeof(mp_limb_t)),
234: (unsigned long) (p[i] >> (BITS_PER_MP_LIMB/2)),
235: (int) (sizeof(mp_limb_t)), (unsigned long) (p[i]));
236: #else
237: printf ("%0*lX", (int) (2 * sizeof(mp_limb_t)), p[i]);
238: #endif
239: #ifdef SPACE
240: if (i != 0)
241: printf (" ");
242: #endif
243: }
244: puts ("");
245: }
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to lshift.c CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [local] / OpenXM_contrib / gmp / tests / devel