gcc/testsuite/gcc.c-torture/execute/bitfld-3.c

   1 /* Test that operations on bit-fields yield results reduced to bit-field
   2    type.  */
   3 /* Origin: Joseph Myers <jsm@polyomino.org.uk> */
   4
   5 extern void exit (int);
   6 extern void abort (void);
   7
   8 struct s {
   9   unsigned long long u33: 33;
  10   unsigned long long u40: 40;
  11   unsigned long long u41: 41;
  12 };
  13
  14 struct s a = { 0x100000, 0x100000, 0x100000 };
  15 struct s b = { 0x100000000ULL, 0x100000000ULL, 0x100000000ULL };
  16 struct s c = { 0x1FFFFFFFFULL, 0, 0 };
  17
  18 int
  19 main (void)
  20 {
  21   if (a.u33 * a.u33 != 0 || a.u33 * a.u40 != 0 || a.u40 * a.u33 != 0
  22       || a.u40 * a.u40 != 0)
  23     abort ();
  24   if (a.u33 * a.u41 != 0x10000000000ULL
  25       || a.u40 * a.u41 != 0x10000000000ULL
  26       || a.u41 * a.u33 != 0x10000000000ULL
  27       || a.u41 * a.u40 != 0x10000000000ULL
  28       || a.u41 * a.u41 != 0x10000000000ULL)
  29     abort ();
  30   if (b.u33 + b.u33 != 0)
  31     abort ();
  32   if (b.u33 + b.u40 != 0x200000000ULL
  33       || b.u33 + b.u41 != 0x200000000ULL
  34       || b.u40 + b.u33 != 0x200000000ULL
  35       || b.u40 + b.u40 != 0x200000000ULL
  36       || b.u40 + b.u41 != 0x200000000ULL
  37       || b.u41 + b.u33 != 0x200000000ULL
  38       || b.u41 + b.u40 != 0x200000000ULL
  39       || b.u41 + b.u41 != 0x200000000ULL)
  40     abort ();
  41   if (a.u33 - b.u33 != 0x100100000ULL
  42       || a.u33 - b.u40 != 0xFF00100000ULL
  43       || a.u33 - b.u41 != 0x1FF00100000ULL
  44       || a.u40 - b.u33 != 0xFF00100000ULL
  45       || a.u40 - b.u40 != 0xFF00100000ULL
  46       || a.u40 - b.u41 != 0x1FF00100000ULL
  47       || a.u41 - b.u33 != 0x1FF00100000ULL
  48       || a.u41 - b.u40 != 0x1FF00100000ULL
  49       || a.u41 - b.u41 != 0x1FF00100000ULL)
  50     abort ();
  51   if (++c.u33 != 0 || --c.u40 != 0xFFFFFFFFFFULL || c.u41-- != 0)
  52     abort ();
  53   exit (0);
  54 }