gcc/testsuite/gcc.c-torture/compile/20170419-1.c

   1 extern int __fpclassifyd (double x);
   2
   3 double fdim (double x, double y)
   4 {
   5    int c = __fpclassifyd (x);
   6    if (c == 0)
   7      return (x);
   8    if (__fpclassifyd (y) == 0)
   9      return (y);
  10    if (c == 1)
  11      return (__builtin_huge_val ());
  12    return x > y ? x - y : 0.0;
  13 }