1  /* Area:	ffi_call, closure_call
       2     Purpose:	Check structure passing with different structure size.
       3  		Depending on the ABI. Check overlapping.
       4     Limitations:	none.
       5     PR:		none.
       6     Originator:	<andreast@gcc.gnu.org> 20030828	 */
       7  
       8  /* { dg-do run } */
       9  #include "ffitest.h"
      10  
      11  typedef struct cls_struct_20byte {
      12    double a;
      13    double b;
      14    int c;
      15  } cls_struct_20byte;
      16  
      17  static cls_struct_20byte cls_struct_20byte_fn(struct cls_struct_20byte a1,
      18  			    struct cls_struct_20byte a2)
      19  {
      20    struct cls_struct_20byte result;
      21  
      22    result.a = a1.a + a2.a;
      23    result.b = a1.b + a2.b;
      24    result.c = a1.c + a2.c;
      25  
      26    printf("%g %g %d %g %g %d: %g %g %d\n", a1.a, a1.b, a1.c, a2.a, a2.b, a2.c,
      27  	 result.a, result.b, result.c);
      28    return result;
      29  }
      30  
      31  static void
      32  cls_struct_20byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
      33  		     void* userdata __UNUSED__)
      34  {
      35    struct cls_struct_20byte a1, a2;
      36  
      37    a1 = *(struct cls_struct_20byte*)(args[0]);
      38    a2 = *(struct cls_struct_20byte*)(args[1]);
      39  
      40    *(cls_struct_20byte*)resp = cls_struct_20byte_fn(a1, a2);
      41  }
      42  
      43  int main (void)
      44  {
      45    ffi_cif cif;
      46    void *code;
      47    ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
      48    void* args_dbl[5];
      49    ffi_type* cls_struct_fields[4];
      50    ffi_type cls_struct_type;
      51    ffi_type* dbl_arg_types[5];
      52  
      53    struct cls_struct_20byte g_dbl = { 1.0, 2.0, 3 };
      54    struct cls_struct_20byte f_dbl = { 4.0, 5.0, 7 };
      55    struct cls_struct_20byte res_dbl;
      56  
      57    cls_struct_type.size = 0;
      58    cls_struct_type.alignment = 0;
      59    cls_struct_type.type = FFI_TYPE_STRUCT;
      60    cls_struct_type.elements = cls_struct_fields;
      61  
      62    cls_struct_fields[0] = &ffi_type_double;
      63    cls_struct_fields[1] = &ffi_type_double;
      64    cls_struct_fields[2] = &ffi_type_sint;
      65    cls_struct_fields[3] = NULL;
      66  
      67    dbl_arg_types[0] = &cls_struct_type;
      68    dbl_arg_types[1] = &cls_struct_type;
      69    dbl_arg_types[2] = NULL;
      70  
      71    CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
      72  		     dbl_arg_types) == FFI_OK);
      73  
      74    args_dbl[0] = &g_dbl;
      75    args_dbl[1] = &f_dbl;
      76    args_dbl[2] = NULL;
      77  
      78    ffi_call(&cif, FFI_FN(cls_struct_20byte_fn), &res_dbl, args_dbl);
      79    /* { dg-output "1 2 3 4 5 7: 5 7 10" } */
      80    printf("res: %g %g %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
      81    /* { dg-output "\nres: 5 7 10" } */
      82  
      83    CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_20byte_gn, NULL, code) == FFI_OK);
      84  
      85    res_dbl = ((cls_struct_20byte(*)(cls_struct_20byte, cls_struct_20byte))(code))(g_dbl, f_dbl);
      86    /* { dg-output "\n1 2 3 4 5 7: 5 7 10" } */
      87    printf("res: %g %g %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
      88    /* { dg-output "\nres: 5 7 10" } */
      89  
      90    exit(0);
      91  }