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131
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1 /* Test to verify that VLAs are handled gracefully by -Wrestrict
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2 { dg-do compile }
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3 { dg-options "-O2 -Wrestrict" }
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4 { dg-require-effective-target alloca } */
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5
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6 typedef __SIZE_TYPE__ size_t;
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7
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8 #define memcpy(d, s, n) __builtin_memcpy (d, s, n)
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9 #define strcpy(d, s) __builtin_strcpy (d, s)
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10
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11 void test_vla (void *d, const char *s1, const char *s2, int i, size_t n)
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12 {
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13 char a[n];
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14 char b[n];
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15
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16 strcpy (a, s1);
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17 strcpy (b, s2);
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18
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19 memcpy (d, i ? a : b, n);
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20 }
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21
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22
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23 void test_vla_member (void *d, const char *s1, const char *s2, int i, size_t n)
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24 {
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25 struct S
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26 {
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27 char a[n];
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28 char b[n];
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29 } s;
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30
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31 strcpy (s.a, s1);
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32 strcpy (s.b, s2);
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33
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34 memcpy (d, i ? s.a : s.b, n);
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35 }
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