1  /* Area:	ffi_call, closure_call
       2     Purpose:	Check structure passing with different structure size.
       3  		Depending on the ABI. Darwin/AIX do double-word
       4  		alignment of the struct if the first element is a double.
       5  		Check that it does not here.
       6     Limitations:	none.
       7     PR:		none.
       8     Originator:	<andreast@gcc.gnu.org> 20030914	 */
       9  
      10  /* { dg-do run } */
      11  #include "ffitest.h"
      12  
      13  typedef struct cls_struct_9byte {
      14    int a;
      15    double b;
      16  } cls_struct_9byte;
      17  
      18  static cls_struct_9byte cls_struct_9byte_fn(struct cls_struct_9byte b1,
      19  			    struct cls_struct_9byte b2)
      20  {
      21    struct cls_struct_9byte result;
      22  
      23    result.a = b1.a + b2.a;
      24    result.b = b1.b + b2.b;
      25  
      26    printf("%d %g %d %g: %d %g\n", b1.a, b1.b,  b2.a, b2.b,
      27  	 result.a, result.b);
      28  
      29    return result;
      30  }
      31  
      32  static void cls_struct_9byte_gn(ffi_cif* cif __UNUSED__, void* resp,
      33  				void** args, void* userdata __UNUSED__)
      34  {
      35    struct cls_struct_9byte b1, b2;
      36  
      37    b1 = *(struct cls_struct_9byte*)(args[0]);
      38    b2 = *(struct cls_struct_9byte*)(args[1]);
      39  
      40    *(cls_struct_9byte*)resp = cls_struct_9byte_fn(b1, b2);
      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[3];
      49    ffi_type* cls_struct_fields[3];
      50    ffi_type cls_struct_type;
      51    ffi_type* dbl_arg_types[3];
      52  
      53    struct cls_struct_9byte h_dbl = { 7, 8.0};
      54    struct cls_struct_9byte j_dbl = { 1, 9.0};
      55    struct cls_struct_9byte 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_sint;
      63    cls_struct_fields[1] = &ffi_type_double;
      64    cls_struct_fields[2] = NULL;
      65  
      66    dbl_arg_types[0] = &cls_struct_type;
      67    dbl_arg_types[1] = &cls_struct_type;
      68    dbl_arg_types[2] = NULL;
      69  
      70    CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
      71  		     dbl_arg_types) == FFI_OK);
      72  
      73    args_dbl[0] = &h_dbl;
      74    args_dbl[1] = &j_dbl;
      75    args_dbl[2] = NULL;
      76  
      77    ffi_call(&cif, FFI_FN(cls_struct_9byte_fn), &res_dbl, args_dbl);
      78    /* { dg-output "7 8 1 9: 8 17" } */
      79    printf("res: %d %g\n", res_dbl.a, res_dbl.b);
      80    /* { dg-output "\nres: 8 17" } */
      81  
      82    CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_9byte_gn, NULL, code) == FFI_OK);
      83  
      84    res_dbl = ((cls_struct_9byte(*)(cls_struct_9byte, cls_struct_9byte))(code))(h_dbl, j_dbl);
      85    /* { dg-output "\n7 8 1 9: 8 17" } */
      86    printf("res: %d %g\n", res_dbl.a, res_dbl.b);
      87    /* { dg-output "\nres: 8 17" } */
      88  
      89    exit(0);
      90  }