gcc/testsuite/gcc.c-torture/execute/20120919-1.c

   1 /* PR rtl-optimization/54290 */
   2 /* Testcase by Eric Volk <eriksnga@gmail.com> */
   3
   4 double vd[2] = {1., 0.};
   5 int vi[2] = {1234567890, 0};
   6 double *pd = vd;
   7 int *pi = vi;
   8
   9 extern void abort(void);
  10
  11 void init (int *n, int *dummy) __attribute__ ((noinline,noclone));
  12
  13 void init (int *n, int *dummy)
  14 {
  15   if(0 == n) dummy[0] = 0;
  16 }
  17
  18 int main (void)
  19 {
  20   int dummy[1532];
  21   int i = -1, n = 1, s = 0;
  22   init (&n, dummy);
  23   while (i < n) {
  24     if (i == 0) {
  25       if (pd[i] > 0) {
  26         if (pi[i] > 0) {
  27           s += pi[i];
  28         }
  29       }
  30       pd[i] = pi[i];
  31     }
  32     ++i;
  33   }
  34   if (s != 1234567890)
  35     abort ();
  36   return 0;
  37 }