gcc/testsuite/gcc.c-torture/execute/20040811-1.c

   1 /* { dg-require-effective-target int32plus } */
   2 /* { dg-require-effective-target alloca } */
   3
   4 /* Ensure that we deallocate X when branching back before its
   5    declaration.  */
   6
   7 void *volatile p;
   8
   9 int
  10 main (void)
  11 {
  12   int n = 0;
  13  lab:;
  14   int x[n % 1000 + 1];
  15   x[0] = 1;
  16   x[n % 1000] = 2;
  17   p = x;
  18   n++;
  19   if (n < 1000000)
  20     goto lab;
  21   return 0;
  22 }