gcc/testsuite/gcc.dg/vla-24.c

   1 /* PR middle-end/65958 */
   2
   3 /* { dg-do run } */
   4 /* { dg-options "-std=gnu99" } */
   5 /* { dg-require-effective-target alloca } */
   6
   7 extern void abort (void);
   8
   9 int foo (int n)
  10 {
  11   char *p, *q;
  12
  13   if (1)
  14     {
  15       char i[n];
  16       p = __builtin_alloca (8);
  17       p[0] = 1;
  18     }
  19
  20   q = __builtin_alloca (64);
  21   __builtin_memset (q, 0, 64);
  22
  23   return !p[0];
  24 }
  25
  26 int main (void)
  27 {
  28   if (foo (48) != 0)
  29     abort ();
  30
  31   return 0;
  32 }