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131
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1 /* { dg-do run } */
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2 /* { dg-options "-O -fdump-tree-esra-details" } */
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3
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4 volatile short vs;
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5 volatile long vl;
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6
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7 struct A { short s; long i; long j; };
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8 struct A a, b;
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9 void foo ()
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10 {
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11 struct A c;
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12 __builtin_memcpy (&c, &b, sizeof (struct A));
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13 __builtin_memcpy (&a, &c, sizeof (struct A));
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14
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15 vs = c.s;
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16 vl = c.i;
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17 vl = c.j;
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18 }
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19
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20
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21 int main()
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22 {
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23 if ((sizeof (short) != 2)
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24 || (__builtin_offsetof (struct A, i) < 4))
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25 return 0;
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26
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27 __builtin_memset (&b, 0, sizeof (struct A));
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28 b.s = 1;
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29 __builtin_memcpy ((char *)&b+2, &b, 2);
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30 foo ();
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31 __builtin_memcpy (&a, (char *)&a+2, 2);
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32 if (a.s != 1)
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33 __builtin_abort ();
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34 return 0;
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35 }
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36
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37 /* { dg-final { scan-tree-dump-not "Will attempt to totally scalarize" "esra" } } */
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