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_19byte {
      12    double a;
      13    unsigned char b;
      14    unsigned char c;
      15    double d;
      16    unsigned char e;
      17  } cls_struct_19byte;
      18  
      19  cls_struct_19byte cls_struct_19byte_fn(struct cls_struct_19byte a1,
      20  			    struct cls_struct_19byte a2)
      21  {
      22    struct cls_struct_19byte result;
      23  
      24    result.a = a1.a + a2.a;
      25    result.b = a1.b + a2.b;
      26    result.c = a1.c + a2.c;
      27    result.d = a1.d + a2.d;
      28    result.e = a1.e + a2.e;
      29  
      30  
      31    printf("%g %d %d %g %d %g %d %d %g %d: %g %d %d %g %d\n",
      32  	 a1.a, a1.b, a1.c, a1.d, a1.e,
      33  	 a2.a, a2.b, a2.c, a2.d, a2.e,
      34  	 result.a, result.b, result.c, result.d, result.e);
      35    return result;
      36  }
      37  
      38  static void
      39  cls_struct_19byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
      40  		     void* userdata __UNUSED__)
      41  {
      42    struct cls_struct_19byte a1, a2;
      43  
      44    a1 = *(struct cls_struct_19byte*)(args[0]);
      45    a2 = *(struct cls_struct_19byte*)(args[1]);
      46  
      47    *(cls_struct_19byte*)resp = cls_struct_19byte_fn(a1, a2);
      48  }
      49  
      50  int main (void)
      51  {
      52    ffi_cif cif;
      53    void *code;
      54    ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
      55    void* args_dbl[3];
      56    ffi_type* cls_struct_fields[6];
      57    ffi_type cls_struct_type;
      58    ffi_type* dbl_arg_types[3];
      59  
      60    struct cls_struct_19byte g_dbl = { 1.0, 127, 126, 3.0, 120 };
      61    struct cls_struct_19byte f_dbl = { 4.0, 125, 124, 5.0, 119 };
      62    struct cls_struct_19byte res_dbl;
      63  
      64    cls_struct_type.size = 0;
      65    cls_struct_type.alignment = 0;
      66    cls_struct_type.type = FFI_TYPE_STRUCT;
      67    cls_struct_type.elements = cls_struct_fields;
      68  
      69    cls_struct_fields[0] = &ffi_type_double;
      70    cls_struct_fields[1] = &ffi_type_uchar;
      71    cls_struct_fields[2] = &ffi_type_uchar;
      72    cls_struct_fields[3] = &ffi_type_double;
      73    cls_struct_fields[4] = &ffi_type_uchar;
      74    cls_struct_fields[5] = NULL;
      75  
      76    dbl_arg_types[0] = &cls_struct_type;
      77    dbl_arg_types[1] = &cls_struct_type;
      78    dbl_arg_types[2] = NULL;
      79  
      80    CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
      81  		     dbl_arg_types) == FFI_OK);
      82  
      83    args_dbl[0] = &g_dbl;
      84    args_dbl[1] = &f_dbl;
      85    args_dbl[2] = NULL;
      86  
      87    ffi_call(&cif, FFI_FN(cls_struct_19byte_fn), &res_dbl, args_dbl);
      88    /* { dg-output "1 127 126 3 120 4 125 124 5 119: 5 252 250 8 239" } */
      89    printf("res: %g %d %d %g %d\n", res_dbl.a, res_dbl.b, res_dbl.c,
      90  	 res_dbl.d, res_dbl.e);
      91    /* { dg-output "\nres: 5 252 250 8 239" } */
      92  
      93    CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_19byte_gn, NULL, code) == FFI_OK);
      94  
      95    res_dbl = ((cls_struct_19byte(*)(cls_struct_19byte, cls_struct_19byte))(code))(g_dbl, f_dbl);
      96    /* { dg-output "\n1 127 126 3 120 4 125 124 5 119: 5 252 250 8 239" } */
      97    printf("res: %g %d %d %g %d\n", res_dbl.a, res_dbl.b, res_dbl.c,
      98  	 res_dbl.d, res_dbl.e);
      99    /* { dg-output "\nres: 5 252 250 8 239" } */
     100  
     101    exit(0);
     102  }