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111
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1 /* { dg-do run } */
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2 /* { dg-options "-O2" } */
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3 /* { dg-additional-options "-minline-all-stringops" { target { i?86-*-* x86_64-*-* } } } */
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4
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5 extern void abort (void);
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6
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7 #define MAX_OFFSET (sizeof (long long))
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8 #define MAX_COPY (8 * sizeof (long long))
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9 #define MAX_EXTRA (sizeof (long long))
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10
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11 #define MAX_LENGTH (MAX_OFFSET + MAX_COPY + MAX_EXTRA)
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12
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13 static union {
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14 char buf[MAX_LENGTH];
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15 long long align_int;
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16 long double align_fp;
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17 } u;
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18
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19 char A[MAX_LENGTH];
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20
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21 int
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22 main ()
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23 {
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24 int off, len, i;
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25 char *p, *q;
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26
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27 for (i = 0; i < MAX_LENGTH; i++)
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28 A[i] = 'A';
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29
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30 for (off = 0; off < MAX_OFFSET; off++)
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31 for (len = 1; len < MAX_COPY; len++)
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32 {
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33 for (i = 0; i < MAX_LENGTH; i++)
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34 u.buf[i] = 'a';
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35
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36 p = __builtin_memcpy (u.buf + off, A, len);
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37 if (p != u.buf + off)
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38 abort ();
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39
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40 q = u.buf;
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41 for (i = 0; i < off; i++, q++)
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42 if (*q != 'a')
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43 abort ();
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44
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45 for (i = 0; i < len; i++, q++)
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46 if (*q != 'A')
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47 abort ();
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48
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49 for (i = 0; i < MAX_EXTRA; i++, q++)
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50 if (*q != 'a')
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51 abort ();
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52 }
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53
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54 return 0;
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55 }
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