gcc/testsuite/gcc.c-torture/execute/loop-3c.c

   1 #include <limits.h>
   2
   3 void * a[255];
   4
   5 f (m)
   6 {
   7   int i;
   8   int sh = 0x100;
   9   i = m;
  10   do
  11     {
  12       a[sh >>= 1] = ((unsigned)i << 3)  + (char*)a;
  13       i += 4;
  14     }
  15   while (i < INT_MAX/2 + 1 + 4 * 4);
  16 }
  17
  18 main ()
  19 {
  20   a[0x10] = 0;
  21   a[0x08] = 0;
  22   f (INT_MAX/2 + INT_MAX/4 + 2);
  23   if (a[0x10] || a[0x08])
  24     abort ();
  25   a[0x10] = 0;
  26   a[0x08] = 0;
  27   f (INT_MAX/2 + 1);
  28   if (! a[0x10] || a[0x08])
  29     abort ();
  30   exit (0);
  31 }