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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.c-torture/] [execute/] [ieee/] [pr30704.c] - Rev 825

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/* PR middle-end/30704 */
 
typedef __SIZE_TYPE__ size_t;
extern void abort (void);
extern int memcmp (const void *, const void *, size_t);
extern void *memcpy (void *, const void *, size_t);
 
long long
__attribute__((noinline))
f1 (void)
{
  long long t;
  double d = 0x0.fffffffffffff000p-1022;
  memcpy (&t, &d, sizeof (long long));
  return t;
}
 
double
__attribute__((noinline))
f2 (void)
{
  long long t = 0x000fedcba9876543LL;
  double d;
  memcpy (&d, &t, sizeof (long long));
  return d;
}
 
int
main ()
{
  union
  {
    long long ll;
    double d;
  } u;
 
  if (sizeof (long long) != sizeof (double) || __DBL_MIN_EXP__ != -1021)
    return 0;
 
  u.ll = f1 ();
  if (u.d != 0x0.fffffffffffff000p-1022)
    abort ();
 
  u.d = f2 ();
  if (u.ll != 0x000fedcba9876543LL)
    abort ();
 
  double b = 234.0;
  long long c;
  double d = b;
  memcpy (&c, &b, sizeof (double));
  long long e = c;
  if (memcmp (&e, &d, sizeof (double)) != 0)
    abort ();
 
  return 0;
}
 

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