gcc/testsuite/gcc.target/bfin/arith.c

   1 extern void abort (void);
   2 extern void exit (int);
   3
   4 typedef short  __v2hi __attribute ((vector_size(4)));
   5 typedef __v2hi fract2x16;
   6 typedef short fract16;
   7
   8 int main ()
   9 {
  10   fract2x16 a, b, c, d;
  11   fract16 t1, t2;
  12   a = __builtin_bfin_compose_2x16 (0x3000, 0x2000);
  13   b = __builtin_bfin_compose_2x16 (0x7000, 0x5000);
  14   c = __builtin_bfin_compose_2x16 (0x7000, 0xc000);
  15
  16   d = __builtin_bfin_add_fr2x16 (a, b);
  17   t1 = __builtin_bfin_extract_lo (d);
  18   t2 = __builtin_bfin_extract_hi (d);
  19   if (t1 != 0x7000 || t2 != 0x7fff)
  20     abort ();
  21
  22   d = __builtin_bfin_sub_fr2x16 (a, b);
  23   t1 = __builtin_bfin_extract_lo (d);
  24   t2 = __builtin_bfin_extract_hi (d);
  25   if (t1 != -0x3000 || t2 != -0x4000)
  26     abort ();
  27
  28   d = __builtin_bfin_negate_fr2x16 (c);
  29   t1 = __builtin_bfin_extract_lo (d);
  30   t2 = __builtin_bfin_extract_hi (d);
  31   if (t1 != 0x4000 || t2 != -0x7000)
  32     abort ();
  33
  34   if (__builtin_bfin_add_fr1x32 (0x7fffffff, 1) != 0x7fffffff)
  35     abort ();
  36
  37   if (__builtin_bfin_add_fr1x32 (0x80000000, -1) != 0x80000000)
  38     abort ();
  39
  40   if (__builtin_bfin_add_fr1x32 (0x80000001, -1) != 0x80000000)
  41     abort ();
  42
  43   if (__builtin_bfin_add_fr1x32 (0xFEDCBA98, 0x11111111) != 0x0FEDCBA9)
  44     abort ();
  45
  46   exit (0);
  47 }
  48