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_24byte {
      12    double a;
      13    double b;
      14    int c;
      15    float d;
      16  } cls_struct_24byte;
      17  
      18  cls_struct_24byte cls_struct_24byte_fn(struct cls_struct_24byte b0,
      19  			    struct cls_struct_24byte b1,
      20  			    struct cls_struct_24byte b2,
      21  			    struct cls_struct_24byte b3)
      22  {
      23    struct cls_struct_24byte result;
      24  
      25    result.a = b0.a + b1.a + b2.a + b3.a;
      26    result.b = b0.b + b1.b + b2.b + b3.b;
      27    result.c = b0.c + b1.c + b2.c + b3.c;
      28    result.d = b0.d + b1.d + b2.d + b3.d;
      29  
      30    printf("%g %g %d %g %g %g %d %g %g %g %d %g %g %g %d %g: %g %g %d %g\n",
      31  	 b0.a, b0.b, b0.c, b0.d,
      32  	 b1.a, b1.b, b1.c, b1.d,
      33  	 b2.a, b2.b, b2.c, b2.d,
      34  	 b3.a, b3.b, b3.c, b3.d,
      35  	 result.a, result.b, result.c, result.d);
      36  
      37    return result;
      38  }
      39  
      40  static void
      41  cls_struct_24byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
      42  		     void* userdata __UNUSED__)
      43  {
      44    struct cls_struct_24byte b0, b1, b2, b3;
      45  
      46    b0 = *(struct cls_struct_24byte*)(args[0]);
      47    b1 = *(struct cls_struct_24byte*)(args[1]);
      48    b2 = *(struct cls_struct_24byte*)(args[2]);
      49    b3 = *(struct cls_struct_24byte*)(args[3]);
      50  
      51    *(cls_struct_24byte*)resp = cls_struct_24byte_fn(b0, b1, b2, b3);
      52  }
      53  
      54  int main (void)
      55  {
      56    ffi_cif cif;
      57    void *code;
      58    ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
      59    void* args_dbl[5];
      60    ffi_type* cls_struct_fields[5];
      61    ffi_type cls_struct_type;
      62    ffi_type* dbl_arg_types[5];
      63  
      64    struct cls_struct_24byte e_dbl = { 9.0, 2.0, 6, 5.0 };
      65    struct cls_struct_24byte f_dbl = { 1.0, 2.0, 3, 7.0 };
      66    struct cls_struct_24byte g_dbl = { 4.0, 5.0, 7, 9.0 };
      67    struct cls_struct_24byte h_dbl = { 8.0, 6.0, 1, 4.0 };
      68    struct cls_struct_24byte res_dbl;
      69  
      70    cls_struct_type.size = 0;
      71    cls_struct_type.alignment = 0;
      72    cls_struct_type.type = FFI_TYPE_STRUCT;
      73    cls_struct_type.elements = cls_struct_fields;
      74  
      75    cls_struct_fields[0] = &ffi_type_double;
      76    cls_struct_fields[1] = &ffi_type_double;
      77    cls_struct_fields[2] = &ffi_type_sint;
      78    cls_struct_fields[3] = &ffi_type_float;
      79    cls_struct_fields[4] = NULL;
      80  
      81    dbl_arg_types[0] = &cls_struct_type;
      82    dbl_arg_types[1] = &cls_struct_type;
      83    dbl_arg_types[2] = &cls_struct_type;
      84    dbl_arg_types[3] = &cls_struct_type;
      85    dbl_arg_types[4] = NULL;
      86  
      87    CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 4, &cls_struct_type,
      88  		     dbl_arg_types) == FFI_OK);
      89  
      90    args_dbl[0] = &e_dbl;
      91    args_dbl[1] = &f_dbl;
      92    args_dbl[2] = &g_dbl;
      93    args_dbl[3] = &h_dbl;
      94    args_dbl[4] = NULL;
      95  
      96    ffi_call(&cif, FFI_FN(cls_struct_24byte_fn), &res_dbl, args_dbl);
      97    /* { dg-output "9 2 6 5 1 2 3 7 4 5 7 9 8 6 1 4: 22 15 17 25" } */
      98    printf("res: %g %g %d %g\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
      99    /* { dg-output "\nres: 22 15 17 25" } */
     100  
     101    CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_24byte_gn, NULL, code) == FFI_OK);
     102  
     103    res_dbl = ((cls_struct_24byte(*)(cls_struct_24byte,
     104  				   cls_struct_24byte,
     105  				   cls_struct_24byte,
     106  				   cls_struct_24byte))
     107  	     (code))(e_dbl, f_dbl, g_dbl, h_dbl);
     108    /* { dg-output "\n9 2 6 5 1 2 3 7 4 5 7 9 8 6 1 4: 22 15 17 25" } */
     109    printf("res: %g %g %d %g\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
     110    /* { dg-output "\nres: 22 15 17 25" } */
     111  
     112    exit(0);
     113  }