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145
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1 /* PR target/88620 */
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2 /* { dg-do run } */
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3 /* { dg-options "-Ofast --param ipa-cp-eval-threshold=0 -fno-guess-branch-probability -fno-inline-small-functions" } */
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4 /* { dg-require-effective-target alloca } */
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5
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6 void
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7 foo (int n)
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8 {
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9 struct S { int a[n]; };
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10
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11 struct S
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12 fn (void)
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13 {
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14 struct S s;
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15 s.a[0] = 42;
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16 return s;
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17 }
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18
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19 auto struct S
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20 fn2 (void)
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21 {
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22 return fn ();
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23 }
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24
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25 struct S x;
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26 fn ();
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27 fn2 ();
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28 x = fn ();
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29
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30 if (x.a[0] != 42)
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31 __builtin_abort ();
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32
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33 if (fn ().a[0] != 42)
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34 __builtin_abort ();
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35
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36 __typeof__ (fn ()) *p = &x;
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37 if (p->a[0] != 42)
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38 __builtin_abort ();
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39
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40 if (fn2 ().a[0] != 42)
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41 __builtin_abort ();
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42 }
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43
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44 int
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45 main (void)
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46 {
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47 foo (1);
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48 }
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