gcc/testsuite/gcc.target/bfin/builtins/sub_fr2x16-1.c

   1 extern void abort (void);
   2
   3 typedef short  __v2hi __attribute ((vector_size(4)));
   4 typedef __v2hi fract2x16;
   5 typedef short fract16;
   6
   7 int main ()
   8 {
   9   fract2x16 a, b, t;
  10   fract16 t1, t2;
  11
  12   a = __builtin_bfin_compose_2x16 (0x4000, 0x2000);
  13   b = __builtin_bfin_compose_2x16 (0x8000, 0x5000);
  14
  15   t = __builtin_bfin_sub_fr2x16 (a, b);
  16   t1 = __builtin_bfin_extract_hi (t);
  17   t2 = __builtin_bfin_extract_lo (t);
  18   if (t1 != 0x7fff || t2 != -0x3000)
  19     abort ();
  20
  21   return 0;
  22 }
  23