gcc/testsuite/gcc.target/bfin/builtins/negate_fr2x16-1.c

extern void abort (void);

typedef short  __v2hi __attribute ((vector_size(4)));
typedef __v2hi fract2x16;
typedef short fract16;

int main ()
{
  fract2x16 a, t;
  fract16 t1, t2;

  a = __builtin_bfin_compose_2x16 (0x5fff, 0xffff);

  t = __builtin_bfin_negate_fr2x16 (a);
  t1 = __builtin_bfin_extract_hi (t);
  t2 = __builtin_bfin_extract_lo (t);
  if (t1 != -0x5fff || t2 != 0x1)
    abort ();

  return 0;
}