gcc/testsuite/gcc.c-torture/compile/20080704-1.c

   1 /* This code used to crash fold_convert due to PRE
   2    wanting to fold_convert from a REAL_TYPE to an INTEGER_TYPE.  */
   3 typedef unsigned int uint32_t;
   4 union double_union
   5 {
   6   double d;
   7   uint32_t i[2];
   8 };
   9 struct _Jv_reent
  10 {
  11   int _errno;
  12 };
  13 _Jv_strtod_r (struct _Jv_reent *ptr, char **se)
  14 {
  15   int bb2, sign;
  16   double aadj, aadj1, adj;
  17   unsigned long y, z;
  18   union double_union rv, *bs = ((void *) 0), *delta = ((void *) 0);
  19   {
  20   ovfl:ptr->_errno = 34;
  21     {
  22       (((uint32_t) 0xfffffL) | ((uint32_t) 0x100000L) * (1024 + 1023 - 1));
  23     }
  24     if ((aadj = _Jv_ratio (delta, bs)) <= 2.)
  25       {
  26         {
  27           if (aadj < 2. / 2)
  28             aadj = 1. / 2;
  29           aadj1 = -aadj;
  30         }
  31       }
  32     {
  33       (rv.i[1]) -= 53 * ((uint32_t) 0x100000L);
  34       adj = aadj1 * _Jv_ulp (rv.d);
  35       rv.d += adj;
  36       if (((rv.i[1]) & ((uint32_t) 0x7ff00000L)) >=
  37           ((uint32_t) 0x100000L) * (1024 + 1023 - 53))
  38         {
  39           goto ovfl;
  40         }
  41     }
  42   }
  43 }