gcc/testsuite/gcc.c-torture/execute/pr64006.c

   1 /* PR tree-optimization/64006 */
   2
   3 int v;
   4
   5 long __attribute__ ((noinline, noclone))
   6 test (long *x, int y)
   7 {
   8   int i;
   9   long s = 1;
  10   for (i = 0; i < y; i++)
  11     if (__builtin_mul_overflow (s, x[i], &s))
  12       v++;
  13   return s;
  14 }
  15
  16 int
  17 main ()
  18 {
  19   long d[7] = { 975, 975, 975, 975, 975, 975, 975 };
  20   long r = test (d, 7);
  21   if (sizeof (long) * __CHAR_BIT__ == 64 && v != 1)
  22     __builtin_abort ();
  23   else if (sizeof (long) * __CHAR_BIT__ == 32 && v != 4)
  24     __builtin_abort ();
  25   return 0;
  26 }