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:	<compnerd@compnerd.org> 20171026	 */
       7  
       8  /* { dg-do run } */
       9  
      10  #include "ffitest.h"
      11  
      12  typedef struct cls_struct_3float {
      13    float f;
      14    float g;
      15    float h;
      16  } cls_struct_3float;
      17  
      18  cls_struct_3float cls_struct_3float_fn(struct cls_struct_3float a1,
      19  				       struct cls_struct_3float a2)
      20  {
      21    struct cls_struct_3float result;
      22  
      23    result.f = a1.f + a2.f;
      24    result.g = a1.g + a2.g;
      25    result.h = a1.h + a2.h;
      26  
      27    printf("%g %g %g %g %g %g: %g %g %g\n", a1.f, a1.g, a1.h,
      28  	 a2.f, a2.g, a2.h, result.f, result.g, result.h);
      29  
      30    return result;
      31  }
      32  
      33  static void
      34  cls_struct_3float_gn(ffi_cif *cif __UNUSED__, void* resp, void **args,
      35  		     void* userdata __UNUSED__)
      36  {
      37    struct cls_struct_3float a1, a2;
      38  
      39    a1 = *(struct cls_struct_3float*)(args[0]);
      40    a2 = *(struct cls_struct_3float*)(args[1]);
      41  
      42    *(cls_struct_3float*)resp = cls_struct_3float_fn(a1, a2);
      43  }
      44  
      45  int main (void)
      46  {
      47    ffi_cif cif;
      48    void *code;
      49    ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
      50    void *args_dbl[3];
      51    ffi_type* cls_struct_fields[4];
      52    ffi_type cls_struct_type;
      53    ffi_type* dbl_arg_types[3];
      54  
      55    struct cls_struct_3float g_dbl = { 1.0f, 2.0f, 3.0f };
      56    struct cls_struct_3float f_dbl = { 1.0f, 2.0f, 3.0f };
      57    struct cls_struct_3float res_dbl;
      58  
      59    cls_struct_fields[0] = &ffi_type_float;
      60    cls_struct_fields[1] = &ffi_type_float;
      61    cls_struct_fields[2] = &ffi_type_float;
      62    cls_struct_fields[3] = NULL;
      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    dbl_arg_types[0] = &cls_struct_type;
      70    dbl_arg_types[1] = &cls_struct_type;
      71    dbl_arg_types[2] = NULL;
      72  
      73    CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
      74  		     dbl_arg_types) == FFI_OK);
      75  
      76    args_dbl[0] = &g_dbl;
      77    args_dbl[1] = &f_dbl;
      78    args_dbl[2] = NULL;
      79  
      80    ffi_call(&cif, FFI_FN(cls_struct_3float_fn), &res_dbl, args_dbl);
      81    /* { dg-output "1 2 3 1 2 3: 2 4 6" } */
      82    printf("res: %g %g %g\n", res_dbl.f, res_dbl.g, res_dbl.h);
      83    /* { dg-output "\nres: 2 4 6" } */
      84  
      85    CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_3float_gn, NULL, code) ==
      86  	FFI_OK);
      87  
      88    res_dbl = ((cls_struct_3float(*)(cls_struct_3float,
      89  				   cls_struct_3float))(code))(g_dbl, f_dbl);
      90    /* { dg-output "\n1 2 3 1 2 3: 2 4 6" } */
      91    printf("res: %g %g %g\n", res_dbl.f, res_dbl.g, res_dbl.h);
      92    /* { dg-output "\nres: 2 4 6" } */
      93  
      94    exit(0);
      95  }