72 lines
2.0 KiB
C
72 lines
2.0 KiB
C
/* { dg-do run } */
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/* { dg-options "-O2" } */
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typedef __SIZE_TYPE__ size_t;
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extern void *malloc (size_t);
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extern void abort (void);
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struct A
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{
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int i, j, k;
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char buf[255];
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int l, m, n, o;
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};
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int
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main (void)
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{
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const size_t s = sizeof (struct A);
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const size_t o = __builtin_offsetof (struct A, buf);
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struct A *a = malloc (s);
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struct A *b = malloc (o + 212);
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if (__builtin_object_size (a->buf, 0) != s - o)
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abort ();
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if (__builtin_object_size (a->buf, 1) != sizeof (a->buf))
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abort ();
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if (__builtin_object_size (a->buf, 2) != s - o)
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abort ();
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if (__builtin_object_size (a->buf, 3) != sizeof (a->buf))
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abort ();
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if (__builtin_object_size (&a->buf[0], 0) != s - o)
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abort ();
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if (__builtin_object_size (&a->buf[0], 1) != sizeof (a->buf))
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abort ();
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if (__builtin_object_size (&a->buf[0], 2) != s - o)
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abort ();
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if (__builtin_object_size (&a->buf[0], 3) != sizeof (a->buf))
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abort ();
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if (__builtin_object_size (&a->buf[6], 0) != s - o - 6)
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abort ();
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if (__builtin_object_size (&a->buf[6], 1) != sizeof (a->buf) - 6)
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abort ();
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if (__builtin_object_size (&a->buf[6], 2) != s - o - 6)
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abort ();
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if (__builtin_object_size (&a->buf[6], 3) != sizeof (a->buf) - 6)
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abort ();
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if (__builtin_object_size (b->buf, 0) != 212)
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abort ();
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if (__builtin_object_size (b->buf, 1) != 212)
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abort ();
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if (__builtin_object_size (b->buf, 2) != 212)
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abort ();
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if (__builtin_object_size (b->buf, 3) != 212)
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abort ();
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if (__builtin_object_size (&b->buf[0], 0) != 212)
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abort ();
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if (__builtin_object_size (&b->buf[0], 1) != 212)
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abort ();
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if (__builtin_object_size (&b->buf[0], 2) != 212)
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abort ();
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if (__builtin_object_size (&b->buf[0], 3) != 212)
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abort ();
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if (__builtin_object_size (&b->buf[28], 0) != 212 - 28)
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abort ();
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if (__builtin_object_size (&b->buf[28], 1) != 212 - 28)
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abort ();
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if (__builtin_object_size (&b->buf[28], 2) != 212 - 28)
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abort ();
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if (__builtin_object_size (&b->buf[28], 3) != 212 - 28)
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abort ();
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return 0;
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}
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