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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.c-torture/] [execute/] [memset-2.c] - Blame information for rev 816

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Line No. Rev Author Line
1 149 jeremybenn 
/* Copyright (C) 2002  Free Software Foundation.
2 
 
3 
   Test memset with various combinations of pointer alignments and constant
4 
   lengths to make sure any optimizations in the compiler are correct.
5 
 
6 
   Written by Roger Sayle, April 22, 2002.  */
7 
 
8 
#ifndef MAX_OFFSET
9 
#define MAX_OFFSET (sizeof (long long))
10 
#endif
11 
 
12 
#ifndef MAX_COPY
13 
#define MAX_COPY 15
14 
#endif
15 
 
16 
#ifndef MAX_EXTRA
17 
#define MAX_EXTRA (sizeof (long long))
18 
#endif
19 
 
20 
#define MAX_LENGTH (MAX_OFFSET + MAX_COPY + MAX_EXTRA)
21 
 
22 
static union {
23 
  char buf[MAX_LENGTH];
24 
  long long align_int;
25 
  long double align_fp;
26 
} u;
27 
 
28 
char A = 'A';
29 
 
30 
void reset ()
31 
{
32 
  int i;
33 
 
34 
  for (i = 0; i < MAX_LENGTH; i++)
35 
    u.buf[i] = 'a';
36 
}
37 
 
38 
void check (int off, int len, int ch)
39 
{
40 
  char *q;
41 
  int i;
42 
 
43 
  q = u.buf;
44 
  for (i = 0; i < off; i++, q++)
45 
    if (*q != 'a')
46 
      abort ();
47 
 
48 
  for (i = 0; i < len; i++, q++)
49 
    if (*q != ch)
50 
      abort ();
51 
 
52 
  for (i = 0; i < MAX_EXTRA; i++, q++)
53 
    if (*q != 'a')
54 
      abort ();
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}
56 
 
57 
int main ()
58 
{
59 
  int off;
60 
  char *p;
61 
 
62 
  /* len == 1 */
63 
  for (off = 0; off < MAX_OFFSET; off++)
64 
    {
65 
      reset ();
66 
 
67 
      p = memset (u.buf + off, '\0', 1);
68 
      if (p != u.buf + off) abort ();
69 
      check (off, 1, '\0');
70 
 
71 
      p = memset (u.buf + off, A, 1);
72 
      if (p != u.buf + off) abort ();
73 
      check (off, 1, 'A');
74 
 
75 
      p = memset (u.buf + off, 'B', 1);
76 
      if (p != u.buf + off) abort ();
77 
      check (off, 1, 'B');
78 
    }
79 
 
80 
  /* len == 2 */
81 
  for (off = 0; off < MAX_OFFSET; off++)
82 
    {
83 
      reset ();
84 
 
85 
      p = memset (u.buf + off, '\0', 2);
86 
      if (p != u.buf + off) abort ();
87 
      check (off, 2, '\0');
88 
 
89 
      p = memset (u.buf + off, A, 2);
90 
      if (p != u.buf + off) abort ();
91 
      check (off, 2, 'A');
92 
 
93 
      p = memset (u.buf + off, 'B', 2);
94 
      if (p != u.buf + off) abort ();
95 
      check (off, 2, 'B');
96 
    }
97 
 
98 
  /* len == 3 */
99 
  for (off = 0; off < MAX_OFFSET; off++)
100 
    {
101 
      reset ();
102 
 
103 
      p = memset (u.buf + off, '\0', 3);
104 
      if (p != u.buf + off) abort ();
105 
      check (off, 3, '\0');
106 
 
107 
      p = memset (u.buf + off, A, 3);
108 
      if (p != u.buf + off) abort ();
109 
      check (off, 3, 'A');
110 
 
111 
      p = memset (u.buf + off, 'B', 3);
112 
      if (p != u.buf + off) abort ();
113 
      check (off, 3, 'B');
114 
    }
115 
 
116 
  /* len == 4 */
117 
  for (off = 0; off < MAX_OFFSET; off++)
118 
    {
119 
      reset ();
120 
 
121 
      p = memset (u.buf + off, '\0', 4);
122 
      if (p != u.buf + off) abort ();
123 
      check (off, 4, '\0');
124 
 
125 
      p = memset (u.buf + off, A, 4);
126 
      if (p != u.buf + off) abort ();
127 
      check (off, 4, 'A');
128 
 
129 
      p = memset (u.buf + off, 'B', 4);
130 
      if (p != u.buf + off) abort ();
131 
      check (off, 4, 'B');
132 
    }
133 
 
134 
  /* len == 5 */
135 
  for (off = 0; off < MAX_OFFSET; off++)
136 
    {
137 
      reset ();
138 
 
139 
      p = memset (u.buf + off, '\0', 5);
140 
      if (p != u.buf + off) abort ();
141 
      check (off, 5, '\0');
142 
 
143 
      p = memset (u.buf + off, A, 5);
144 
      if (p != u.buf + off) abort ();
145 
      check (off, 5, 'A');
146 
 
147 
      p = memset (u.buf + off, 'B', 5);
148 
      if (p != u.buf + off) abort ();
149 
      check (off, 5, 'B');
150 
    }
151 
 
152 
  /* len == 6 */
153 
  for (off = 0; off < MAX_OFFSET; off++)
154 
    {
155 
      reset ();
156 
 
157 
      p = memset (u.buf + off, '\0', 6);
158 
      if (p != u.buf + off) abort ();
159 
      check (off, 6, '\0');
160 
 
161 
      p = memset (u.buf + off, A, 6);
162 
      if (p != u.buf + off) abort ();
163 
      check (off, 6, 'A');
164 
 
165 
      p = memset (u.buf + off, 'B', 6);
166 
      if (p != u.buf + off) abort ();
167 
      check (off, 6, 'B');
168 
    }
169 
 
170 
  /* len == 7 */
171 
  for (off = 0; off < MAX_OFFSET; off++)
172 
    {
173 
      reset ();
174 
 
175 
      p = memset (u.buf + off, '\0', 7);
176 
      if (p != u.buf + off) abort ();
177 
      check (off, 7, '\0');
178 
 
179 
      p = memset (u.buf + off, A, 7);
180 
      if (p != u.buf + off) abort ();
181 
      check (off, 7, 'A');
182 
 
183 
      p = memset (u.buf + off, 'B', 7);
184 
      if (p != u.buf + off) abort ();
185 
      check (off, 7, 'B');
186 
    }
187 
 
188 
  /* len == 8 */
189 
  for (off = 0; off < MAX_OFFSET; off++)
190 
    {
191 
      reset ();
192 
 
193 
      p = memset (u.buf + off, '\0', 8);
194 
      if (p != u.buf + off) abort ();
195 
      check (off, 8, '\0');
196 
 
197 
      p = memset (u.buf + off, A, 8);
198 
      if (p != u.buf + off) abort ();
199 
      check (off, 8, 'A');
200 
 
201 
      p = memset (u.buf + off, 'B', 8);
202 
      if (p != u.buf + off) abort ();
203 
      check (off, 8, 'B');
204 
    }
205 
 
206 
  /* len == 9 */
207 
  for (off = 0; off < MAX_OFFSET; off++)
208 
    {
209 
      reset ();
210 
 
211 
      p = memset (u.buf + off, '\0', 9);
212 
      if (p != u.buf + off) abort ();
213 
      check (off, 9, '\0');
214 
 
215 
      p = memset (u.buf + off, A, 9);
216 
      if (p != u.buf + off) abort ();
217 
      check (off, 9, 'A');
218 
 
219 
      p = memset (u.buf + off, 'B', 9);
220 
      if (p != u.buf + off) abort ();
221 
      check (off, 9, 'B');
222 
    }
223 
 
224 
  /* len == 10 */
225 
  for (off = 0; off < MAX_OFFSET; off++)
226 
    {
227 
      reset ();
228 
 
229 
      p = memset (u.buf + off, '\0', 10);
230 
      if (p != u.buf + off) abort ();
231 
      check (off, 10, '\0');
232 
 
233 
      p = memset (u.buf + off, A, 10);
234 
      if (p != u.buf + off) abort ();
235 
      check (off, 10, 'A');
236 
 
237 
      p = memset (u.buf + off, 'B', 10);
238 
      if (p != u.buf + off) abort ();
239 
      check (off, 10, 'B');
240 
    }
241 
 
242 
  /* len == 11 */
243 
  for (off = 0; off < MAX_OFFSET; off++)
244 
    {
245 
      reset ();
246 
 
247 
      p = memset (u.buf + off, '\0', 11);
248 
      if (p != u.buf + off) abort ();
249 
      check (off, 11, '\0');
250 
 
251 
      p = memset (u.buf + off, A, 11);
252 
      if (p != u.buf + off) abort ();
253 
      check (off, 11, 'A');
254 
 
255 
      p = memset (u.buf + off, 'B', 11);
256 
      if (p != u.buf + off) abort ();
257 
      check (off, 11, 'B');
258 
    }
259 
 
260 
  /* len == 12 */
261 
  for (off = 0; off < MAX_OFFSET; off++)
262 
    {
263 
      reset ();
264 
 
265 
      p = memset (u.buf + off, '\0', 12);
266 
      if (p != u.buf + off) abort ();
267 
      check (off, 12, '\0');
268 
 
269 
      p = memset (u.buf + off, A, 12);
270 
      if (p != u.buf + off) abort ();
271 
      check (off, 12, 'A');
272 
 
273 
      p = memset (u.buf + off, 'B', 12);
274 
      if (p != u.buf + off) abort ();
275 
      check (off, 12, 'B');
276 
    }
277 
 
278 
  /* len == 13 */
279 
  for (off = 0; off < MAX_OFFSET; off++)
280 
    {
281 
      reset ();
282 
 
283 
      p = memset (u.buf + off, '\0', 13);
284 
      if (p != u.buf + off) abort ();
285 
      check (off, 13, '\0');
286 
 
287 
      p = memset (u.buf + off, A, 13);
288 
      if (p != u.buf + off) abort ();
289 
      check (off, 13, 'A');
290 
 
291 
      p = memset (u.buf + off, 'B', 13);
292 
      if (p != u.buf + off) abort ();
293 
      check (off, 13, 'B');
294 
    }
295 
 
296 
  /* len == 14 */
297 
  for (off = 0; off < MAX_OFFSET; off++)
298 
    {
299 
      reset ();
300 
 
301 
      p = memset (u.buf + off, '\0', 14);
302 
      if (p != u.buf + off) abort ();
303 
      check (off, 14, '\0');
304 
 
305 
      p = memset (u.buf + off, A, 14);
306 
      if (p != u.buf + off) abort ();
307 
      check (off, 14, 'A');
308 
 
309 
      p = memset (u.buf + off, 'B', 14);
310 
      if (p != u.buf + off) abort ();
311 
      check (off, 14, 'B');
312 
    }
313 
 
314 
  /* len == 15 */
315 
  for (off = 0; off < MAX_OFFSET; off++)
316 
    {
317 
      reset ();
318 
 
319 
      p = memset (u.buf + off, '\0', 15);
320 
      if (p != u.buf + off) abort ();
321 
      check (off, 15, '\0');
322 
 
323 
      p = memset (u.buf + off, A, 15);
324 
      if (p != u.buf + off) abort ();
325 
      check (off, 15, 'A');
326 
 
327 
      p = memset (u.buf + off, 'B', 15);
328 
      if (p != u.buf + off) abort ();
329 
      check (off, 15, 'B');
330 
    }
331 
 
332 
  exit (0);
333 
}
334 
 

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