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

   1 /* PR rtl-optimization/54290 */
   2 /* Testcase by Eric Volk <eriksnga@gmail.com> */
   3 /* { dg-require-effective-target int32plus } */
   4
   5 double vd[2] = {1., 0.};
   6 int vi[2] = {1234567890, 0};
   7 double *pd = vd;
   8 int *pi = vi;
   9
  10 extern void abort(void);
  11
  12 void init (int *n, int *dummy) __attribute__ ((noinline,noclone));
  13
  14 void init (int *n, int *dummy)
  15 {
  16   if(0 == n) dummy[0] = 0;
  17 }
  18
  19 int main (void)
  20 {
  21   int dummy[1532];
  22   int i = -1, n = 1, s = 0;
  23   init (&n, dummy);
  24   while (i < n) {
  25     if (i == 0) {
  26       if (pd[i] > 0) {
  27         if (pi[i] > 0) {
  28           s += pi[i];
  29         }
  30       }
  31       pd[i] = pi[i];
  32     }
  33     ++i;
  34   }
  35   if (s != 1234567890)
  36     abort ();
  37   return 0;
  38 }