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      1 /* Area:	ffi_call, closure_call
      2    Purpose:	Check structure passing with different structure size.
      3 		Contains structs as parameter of the struct itself.
      4    Limitations:	none.
      5    PR:		none.
      6    Originator:	<andreast (at) gcc.gnu.org> 20030828	 */
      7 
      8 /* { dg-do run } */
      9 #include "ffitest.h"
     10 
     11 typedef struct cls_struct_16byte1 {
     12   double a;
     13   float b;
     14   int c;
     15 } cls_struct_16byte1;
     16 
     17 typedef struct cls_struct_16byte2 {
     18   int ii;
     19   double dd;
     20   float ff;
     21 } cls_struct_16byte2;
     22 
     23 typedef struct cls_struct_combined {
     24   cls_struct_16byte1 d;
     25   cls_struct_16byte2 e;
     26 } cls_struct_combined;
     27 
     28 cls_struct_combined cls_struct_combined_fn(struct cls_struct_16byte1 b0,
     29 			    struct cls_struct_16byte2 b1,
     30 			    struct cls_struct_combined b2)
     31 {
     32   struct cls_struct_combined result;
     33 
     34   result.d.a = b0.a + b1.dd + b2.d.a;
     35   result.d.b = b0.b + b1.ff + b2.d.b;
     36   result.d.c = b0.c + b1.ii + b2.d.c;
     37   result.e.ii = b0.c + b1.ii + b2.e.ii;
     38   result.e.dd = b0.a + b1.dd + b2.e.dd;
     39   result.e.ff = b0.b + b1.ff + b2.e.ff;
     40 
     41   printf("%g %g %d %d %g %g %g %g %d %d %g %g: %g %g %d %d %g %g\n",
     42 	 b0.a, b0.b, b0.c,
     43 	 b1.ii, b1.dd, b1.ff,
     44 	 b2.d.a, b2.d.b, b2.d.c,
     45 	 b2.e.ii, b2.e.dd, b2.e.ff,
     46 	 result.d.a, result.d.b, result.d.c,
     47 	 result.e.ii, result.e.dd, result.e.ff);
     48 
     49   return result;
     50 }
     51 
     52 static void
     53 cls_struct_combined_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
     54 		       void* userdata __UNUSED__)
     55 {
     56   struct cls_struct_16byte1 b0;
     57   struct cls_struct_16byte2 b1;
     58   struct cls_struct_combined b2;
     59 
     60   b0 = *(struct cls_struct_16byte1*)(args[0]);
     61   b1 = *(struct cls_struct_16byte2*)(args[1]);
     62   b2 = *(struct cls_struct_combined*)(args[2]);
     63 
     64 
     65   *(cls_struct_combined*)resp = cls_struct_combined_fn(b0, b1, b2);
     66 }
     67 
     68 int main (void)
     69 {
     70   ffi_cif cif;
     71   void *code;
     72   ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
     73   void* args_dbl[5];
     74   ffi_type* cls_struct_fields[5];
     75   ffi_type* cls_struct_fields1[5];
     76   ffi_type* cls_struct_fields2[5];
     77   ffi_type cls_struct_type, cls_struct_type1, cls_struct_type2;
     78   ffi_type* dbl_arg_types[5];
     79 
     80   struct cls_struct_16byte1 e_dbl = { 9.0, 2.0, 6};
     81   struct cls_struct_16byte2 f_dbl = { 1, 2.0, 3.0};
     82   struct cls_struct_combined g_dbl = {{4.0, 5.0, 6},
     83 				      {3, 1.0, 8.0}};
     84   struct cls_struct_combined res_dbl;
     85 
     86   cls_struct_type.size = 0;
     87   cls_struct_type.alignment = 0;
     88   cls_struct_type.type = FFI_TYPE_STRUCT;
     89   cls_struct_type.elements = cls_struct_fields;
     90 
     91   cls_struct_type1.size = 0;
     92   cls_struct_type1.alignment = 0;
     93   cls_struct_type1.type = FFI_TYPE_STRUCT;
     94   cls_struct_type1.elements = cls_struct_fields1;
     95 
     96   cls_struct_type2.size = 0;
     97   cls_struct_type2.alignment = 0;
     98   cls_struct_type2.type = FFI_TYPE_STRUCT;
     99   cls_struct_type2.elements = cls_struct_fields2;
    100 
    101   cls_struct_fields[0] = &ffi_type_double;
    102   cls_struct_fields[1] = &ffi_type_float;
    103   cls_struct_fields[2] = &ffi_type_sint;
    104   cls_struct_fields[3] = NULL;
    105 
    106   cls_struct_fields1[0] = &ffi_type_sint;
    107   cls_struct_fields1[1] = &ffi_type_double;
    108   cls_struct_fields1[2] = &ffi_type_float;
    109   cls_struct_fields1[3] = NULL;
    110 
    111   cls_struct_fields2[0] = &cls_struct_type;
    112   cls_struct_fields2[1] = &cls_struct_type1;
    113   cls_struct_fields2[2] = NULL;
    114 
    115 
    116   dbl_arg_types[0] = &cls_struct_type;
    117   dbl_arg_types[1] = &cls_struct_type1;
    118   dbl_arg_types[2] = &cls_struct_type2;
    119   dbl_arg_types[3] = NULL;
    120 
    121   CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 3, &cls_struct_type2,
    122 		     dbl_arg_types) == FFI_OK);
    123 
    124   args_dbl[0] = &e_dbl;
    125   args_dbl[1] = &f_dbl;
    126   args_dbl[2] = &g_dbl;
    127   args_dbl[3] = NULL;
    128 
    129   ffi_call(&cif, FFI_FN(cls_struct_combined_fn), &res_dbl, args_dbl);
    130   /* { dg-output "9 2 6 1 2 3 4 5 6 3 1 8: 15 10 13 10 12 13" } */
    131   CHECK( res_dbl.d.a == (e_dbl.a + f_dbl.dd + g_dbl.d.a));
    132   CHECK( res_dbl.d.b == (e_dbl.b + f_dbl.ff + g_dbl.d.b));
    133   CHECK( res_dbl.d.c == (e_dbl.c + f_dbl.ii + g_dbl.d.c));
    134   CHECK( res_dbl.e.ii == (e_dbl.c + f_dbl.ii + g_dbl.e.ii));
    135   CHECK( res_dbl.e.dd == (e_dbl.a + f_dbl.dd + g_dbl.e.dd));
    136   CHECK( res_dbl.e.ff == (e_dbl.b + f_dbl.ff + g_dbl.e.ff));
    137 
    138   CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_combined_gn, NULL, code) == FFI_OK);
    139 
    140   res_dbl = ((cls_struct_combined(*)(cls_struct_16byte1,
    141 				     cls_struct_16byte2,
    142 				     cls_struct_combined))
    143 	     (code))(e_dbl, f_dbl, g_dbl);
    144   /* { dg-output "\n9 2 6 1 2 3 4 5 6 3 1 8: 15 10 13 10 12 13" } */
    145   CHECK( res_dbl.d.a == (e_dbl.a + f_dbl.dd + g_dbl.d.a));
    146   CHECK( res_dbl.d.b == (e_dbl.b + f_dbl.ff + g_dbl.d.b));
    147   CHECK( res_dbl.d.c == (e_dbl.c + f_dbl.ii + g_dbl.d.c));
    148   CHECK( res_dbl.e.ii == (e_dbl.c + f_dbl.ii + g_dbl.e.ii));
    149   CHECK( res_dbl.e.dd == (e_dbl.a + f_dbl.dd + g_dbl.e.dd));
    150   CHECK( res_dbl.e.ff == (e_dbl.b + f_dbl.ff + g_dbl.e.ff));
    151   exit(0);
    152 }
    153