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_16byte {
      12    int a;
      13    double b;
      14    int c;
      15  } cls_struct_16byte;
      16  
      17  cls_struct_16byte cls_struct_16byte_fn(struct cls_struct_16byte b1,
      18  			    struct cls_struct_16byte b2)
      19  {
      20    struct cls_struct_16byte result;
      21  
      22    result.a = b1.a + b2.a;
      23    result.b = b1.b + b2.b;
      24    result.c = b1.c + b2.c;
      25  
      26    printf("%d %g %d %d %g %d: %d %g %d\n", b1.a, b1.b, b1.c, b2.a, b2.b, b2.c,
      27  	 result.a, result.b, result.c);
      28  
      29    return result;
      30  }
      31  
      32  static void cls_struct_16byte_gn(ffi_cif* cif __UNUSED__, void* resp,
      33  				 void** args, void* userdata __UNUSED__)
      34  {
      35    struct cls_struct_16byte b1, b2;
      36  
      37    b1 = *(struct cls_struct_16byte*)(args[0]);
      38    b2 = *(struct cls_struct_16byte*)(args[1]);
      39  
      40    *(cls_struct_16byte*)resp = cls_struct_16byte_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[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_16byte h_dbl = { 7, 8.0, 9 };
      54    struct cls_struct_16byte j_dbl = { 1, 9.0, 3 };
      55    struct cls_struct_16byte 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] = &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] = &h_dbl;
      75    args_dbl[1] = &j_dbl;
      76    args_dbl[2] = NULL;
      77  
      78    ffi_call(&cif, FFI_FN(cls_struct_16byte_fn), &res_dbl, args_dbl);
      79    /* { dg-output "7 8 9 1 9 3: 8 17 12" } */
      80    printf("res: %d %g %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
      81    /* { dg-output "\nres: 8 17 12" } */
      82  
      83    res_dbl.a = 0;
      84    res_dbl.b = 0.0;
      85    res_dbl.c = 0;
      86  
      87    CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_16byte_gn, NULL, code) == FFI_OK);
      88  
      89    res_dbl = ((cls_struct_16byte(*)(cls_struct_16byte, cls_struct_16byte))(code))(h_dbl, j_dbl);
      90    /* { dg-output "\n7 8 9 1 9 3: 8 17 12" } */
      91    printf("res: %d %g %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
      92    /* { dg-output "\nres: 8 17 12" } */
      93  
      94    exit(0);
      95  }