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111
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1 /* { dg-do compile } */
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2 /* { dg-options "-O2" } */
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3 /* { dg-additional-options "-minline-stringops-dynamically" { 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 #ifndef MAX_COPY
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9 #define MAX_COPY (1024 + 8192)
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10 #endif
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11 #define MAX_EXTRA (sizeof (long long))
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12
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13 #define MAX_LENGTH (MAX_OFFSET + MAX_COPY + MAX_EXTRA)
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14
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15 static union {
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16 char buf[MAX_LENGTH];
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17 long long align_int;
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18 long double align_fp;
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19 } u;
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20
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21 char A[MAX_LENGTH];
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22
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23 int
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24 main ()
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25 {
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26 int off, len, i;
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27 char *p, *q;
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28
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29 for (i = 0; i < MAX_LENGTH; i++)
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30 A[i] = 'A';
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31
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32 for (off = 0; off < MAX_OFFSET; off++)
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33 for (len = 1; len < MAX_COPY; len++)
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34 {
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35 for (i = 0; i < MAX_LENGTH; i++)
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36 u.buf[i] = 'a';
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37
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38 p = __builtin_memcpy (u.buf + off, A, len);
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39 if (p != u.buf + off)
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40 abort ();
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41
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42 q = u.buf;
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43 for (i = 0; i < off; i++, q++)
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44 if (*q != 'a')
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45 abort ();
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46
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47 for (i = 0; i < len; i++, q++)
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48 if (*q != 'A')
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49 abort ();
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50
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51 for (i = 0; i < MAX_EXTRA; i++, q++)
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52 if (*q != 'a')
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53 abort ();
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54 }
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55
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56 return 0;
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57 }
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