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111
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1 /* PR middle-end/30286 */
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2 /* { dg-do run } */
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3 /* { dg-options "-O2 -ftrapv" } */
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4 /* { dg-require-effective-target trapping } */
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5
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6 extern void abort (void);
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7 struct S { struct S *s; };
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8 struct T { struct S *t[25]; };
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9
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10 void
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11 __attribute__((noinline))
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12 foo (int i, struct T *x, struct S *y)
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13 {
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14 int j;
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15 for (j = 14; j > i; j--)
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16 x->t[j] = y->s;
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17 }
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18
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19 int
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20 main (void)
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21 {
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22 struct S s;
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23 struct T t;
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24 int i;
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25
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26 s.s = &s;
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27 __builtin_memset (&t, 0, sizeof (t));
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28 foo (6, &t, &s);
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29 for (i = 0; i < 25; i++)
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30 if (t.t[i] != ((i > 6 && i <= 14) ? &s : (struct S *) 0))
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31 abort ();
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32 __builtin_memset (&t, 0, sizeof (t));
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33 foo (-1, &t, &s);
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34 for (i = 0; i < 25; i++)
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35 if (t.t[i] != ((i >= 0 && i <= 14) ? &s : (struct S *) 0))
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36 abort ();
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37 return 0;
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38 }
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