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; }