extern void abort (void); typedef short __v2hi __attribute ((vector_size(4))); typedef __v2hi fract2x16; typedef short fract16; int main () { fract2x16 a, b, t; fract16 t1, t2; a = __builtin_bfin_compose_2x16 (0x5000, 0x3000); b = __builtin_bfin_compose_2x16 (0x4000, 0x2000); t = __builtin_bfin_dspaddsubsat (a, b); t1 = __builtin_bfin_extract_hi (t); t2 = __builtin_bfin_extract_lo (t); if (t1 != 0x7fff || t2 != 0x1000) abort (); return 0; }