sdcc/support/regression/tests/gcc-torture-execute-20050826-2.c

   1 /*
   2    20050826-2.c from the execute part of the gcc torture suite.
   3  */
   4
   5 #include <testfwk.h>
   6
   7 #ifdef __SDCC
   8 #pragma std_c99
   9 #endif
  10
  11 #pragma disable_warning 85
  12
  13 /* PR rtl-optimization/23560 */
  14
  15 struct rtattr
  16 {
  17   unsigned short rta_len;
  18   unsigned short rta_type;
  19 };
  20
  21 int inet_check_attr (void *r, struct rtattr **rta)
  22 {
  23   int i;
  24
  25   for (i = 1; i <= 14; i++)
  26     {
  27       struct rtattr *attr = rta[i - 1];
  28       if (attr)
  29         {
  30           if (attr->rta_len - sizeof (struct rtattr) < 4)
  31             return -22;
  32           if (i != 9 && i != 8)
  33             rta[i - 1] = attr + 1;
  34         }
  35     }
  36   return 0;
  37 }
  38
  39 void
  40 testTortureExecute (void)
  41 {
  42 #if !defined(__SDCC_pdk14) // Lack of memory
  43   struct rtattr rt[2];
  44   struct rtattr *rta[14];
  45   int i;
  46
  47   rt[0].rta_len = sizeof (struct rtattr) + 8;
  48   rt[0].rta_type = 0;
  49   rt[1] = rt[0];
  50   for (i = 0; i < 14; i++)
  51     rta[i] = &rt[0];
  52   if (inet_check_attr (0, rta) != 0)
  53     ASSERT (0);
  54   for (i = 0; i < 14; i++)
  55     if (rta[i] != &rt[i != 7 && i != 8])
  56       ASSERT (0);
  57   for (i = 0; i < 14; i++)
  58     rta[i] = &rt[0];
  59   rta[1] = 0;
  60   rt[1].rta_len -= 8;
  61   rta[5] = &rt[1];
  62   if (inet_check_attr (0, rta) != -22)
  63     ASSERT (0);
  64   for (i = 0; i < 14; i++)
  65     if (i == 1 && rta[i] != 0)
  66       ASSERT (0);
  67     else if (i != 1 && i <= 5 && rta[i] != &rt[1])
  68       ASSERT (0);
  69     else if (i > 5 && rta[i] != &rt[0])
  70       ASSERT (0);
  71   return;
  72 #endif
  73 }