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_8byte {
      12    int a;
      13    float b;
      14  } cls_struct_8byte;
      15  
      16  cls_struct_8byte cls_struct_8byte_fn(struct cls_struct_8byte a1,
      17  			    struct cls_struct_8byte a2)
      18  {
      19    struct cls_struct_8byte result;
      20  
      21    result.a = a1.a + a2.a;
      22    result.b = a1.b + a2.b;
      23  
      24    printf("%d %g %d %g: %d %g\n", a1.a, a1.b, a2.a, a2.b, result.a, result.b);
      25  
      26    return  result;
      27  }
      28  
      29  static void
      30  cls_struct_8byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
      31  		    void* userdata __UNUSED__)
      32  {
      33  
      34    struct cls_struct_8byte a1, a2;
      35  
      36    a1 = *(struct cls_struct_8byte*)(args[0]);
      37    a2 = *(struct cls_struct_8byte*)(args[1]);
      38  
      39    *(cls_struct_8byte*)resp = cls_struct_8byte_fn(a1, a2);
      40  }
      41  
      42  int main (void)
      43  {
      44    ffi_cif cif;
      45    void *code;
      46    ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
      47    void* args_dbl[5];
      48    ffi_type* cls_struct_fields[4];
      49    ffi_type cls_struct_type;
      50    ffi_type* dbl_arg_types[5];
      51  
      52    struct cls_struct_8byte g_dbl = { 1, 2.0 };
      53    struct cls_struct_8byte f_dbl = { 4, 5.0 };
      54    struct cls_struct_8byte res_dbl;
      55  
      56    cls_struct_type.size = 0;
      57    cls_struct_type.alignment = 0;
      58    cls_struct_type.type = FFI_TYPE_STRUCT;
      59    cls_struct_type.elements = cls_struct_fields;
      60  
      61    cls_struct_fields[0] = &ffi_type_sint;
      62    cls_struct_fields[1] = &ffi_type_float;
      63    cls_struct_fields[2] = NULL;
      64  
      65    dbl_arg_types[0] = &cls_struct_type;
      66    dbl_arg_types[1] = &cls_struct_type;
      67    dbl_arg_types[2] = NULL;
      68  
      69    CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
      70  		     dbl_arg_types) == FFI_OK);
      71  
      72    args_dbl[0] = &g_dbl;
      73    args_dbl[1] = &f_dbl;
      74    args_dbl[2] = NULL;
      75  
      76    ffi_call(&cif, FFI_FN(cls_struct_8byte_fn), &res_dbl, args_dbl);
      77    /* { dg-output "1 2 4 5: 5 7" } */
      78    printf("res: %d %g\n", res_dbl.a, res_dbl.b);
      79    /* { dg-output "\nres: 5 7" } */
      80    CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_8byte_gn, NULL, code) == FFI_OK);
      81  
      82    res_dbl = ((cls_struct_8byte(*)(cls_struct_8byte, cls_struct_8byte))(code))(g_dbl, f_dbl);
      83    /* { dg-output "\n1 2 4 5: 5 7" } */
      84    printf("res: %d %g\n", res_dbl.a, res_dbl.b);
      85    /* { dg-output "\nres: 5 7" } */
      86  
      87    exit(0);
      88  }