gcc/testsuite/gcc.target/bfin/20090914-1.c

/* { dg-do compile { target bfin-*-* } } */

typedef short __v2hi __attribute__ ((vector_size (4)));
typedef __v2hi raw2x16;
typedef raw2x16 fract2x16;

typedef short fract16;
typedef struct complex_fract16
{
  fract16 re;
  fract16 im;
} __attribute__ ((aligned (4))) complex_fract16;

typedef union composite_complex_fract16
{
  struct complex_fract16 x;
  long raw;
} composite_complex_fract16;

__inline__ __attribute__ ((always_inline))
static complex_fract16 cmsu_fr16 (complex_fract16 _sum,
				  complex_fract16 _a, complex_fract16 _b)
{
  complex_fract16 r;
  fract2x16 i =
    __builtin_bfin_cmplx_msu (__builtin_bfin_compose_2x16
			      ((_sum).im, (_sum).re),
			      __builtin_bfin_compose_2x16 ((_a).im, (_a).re),
			      __builtin_bfin_compose_2x16 ((_b).im, (_b).re));
  (r).re = __builtin_bfin_extract_lo (i);
  (r).im = __builtin_bfin_extract_hi (i);
  return r;
}

composite_complex_fract16
f (complex_fract16 _sum, complex_fract16 _a, complex_fract16 _b)
{
  return (composite_complex_fract16) cmsu_fr16 (_sum, _a, _b);
}