1  /* Area:	ffi_call, closure_call
       2     Purpose:	Check structure passing with different structure size.
       3  		Depending on the ABI. Double alignment check on darwin.
       4     Limitations:	none.
       5     PR:		none.
       6     Originator:	<andreast@gcc.gnu.org> 20030915	 */
       7  
       8  /* { dg-do run } */
       9  #include "ffitest.h"
      10  
      11  typedef struct cls_struct_18byte {
      12    double a;
      13    unsigned char b;
      14    unsigned char c;
      15    double d;
      16  } cls_struct_18byte;
      17  
      18  cls_struct_18byte cls_struct_18byte_fn(struct cls_struct_18byte a1,
      19  			    struct cls_struct_18byte a2)
      20  {
      21    struct cls_struct_18byte result;
      22  
      23    result.a = a1.a + a2.a;
      24    result.b = a1.b + a2.b;
      25    result.c = a1.c + a2.c;
      26    result.d = a1.d + a2.d;
      27  
      28  
      29    printf("%g %d %d %g %g %d %d %g: %g %d %d %g\n", a1.a, a1.b, a1.c, a1.d,
      30  	 a2.a, a2.b, a2.c, a2.d,
      31  	 result.a, result.b, result.c, result.d);
      32    return result;
      33  }
      34  
      35  static void
      36  cls_struct_18byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
      37  		     void* userdata __UNUSED__)
      38  {
      39    struct cls_struct_18byte a1, a2;
      40  
      41    a1 = *(struct cls_struct_18byte*)(args[0]);
      42    a2 = *(struct cls_struct_18byte*)(args[1]);
      43  
      44    *(cls_struct_18byte*)resp = cls_struct_18byte_fn(a1, a2);
      45  }
      46  
      47  int main (void)
      48  {
      49    ffi_cif cif;
      50    void *code;
      51    ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
      52    void* args_dbl[3];
      53    ffi_type* cls_struct_fields[5];
      54    ffi_type cls_struct_type;
      55    ffi_type* dbl_arg_types[3];
      56  
      57    struct cls_struct_18byte g_dbl = { 1.0, 127, 126, 3.0 };
      58    struct cls_struct_18byte f_dbl = { 4.0, 125, 124, 5.0 };
      59    struct cls_struct_18byte res_dbl;
      60  
      61    cls_struct_type.size = 0;
      62    cls_struct_type.alignment = 0;
      63    cls_struct_type.type = FFI_TYPE_STRUCT;
      64    cls_struct_type.elements = cls_struct_fields;
      65  
      66    cls_struct_fields[0] = &ffi_type_double;
      67    cls_struct_fields[1] = &ffi_type_uchar;
      68    cls_struct_fields[2] = &ffi_type_uchar;
      69    cls_struct_fields[3] = &ffi_type_double;
      70    cls_struct_fields[4] = NULL;
      71  
      72    dbl_arg_types[0] = &cls_struct_type;
      73    dbl_arg_types[1] = &cls_struct_type;
      74    dbl_arg_types[2] = NULL;
      75  
      76    CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
      77  		     dbl_arg_types) == FFI_OK);
      78  
      79    args_dbl[0] = &g_dbl;
      80    args_dbl[1] = &f_dbl;
      81    args_dbl[2] = NULL;
      82  
      83    ffi_call(&cif, FFI_FN(cls_struct_18byte_fn), &res_dbl, args_dbl);
      84    /* { dg-output "1 127 126 3 4 125 124 5: 5 252 250 8" } */
      85    printf("res: %g %d %d %g\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
      86    /* { dg-output "\nres: 5 252 250 8" } */
      87  
      88    CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_18byte_gn, NULL, code) == FFI_OK);
      89  
      90    res_dbl = ((cls_struct_18byte(*)(cls_struct_18byte, cls_struct_18byte))(code))(g_dbl, f_dbl);
      91    /* { dg-output "\n1 127 126 3 4 125 124 5: 5 252 250 8" } */
      92    printf("res: %g %d %d %g\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
      93    /* { dg-output "\nres: 5 252 250 8" } */
      94  
      95    exit(0);
      96  }