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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 					   struct cls_struct_16byte1 b3)
     32 {
     33   struct cls_struct_combined result;
     34 
     35   result.d.a = b0.a + b1.dd + b2.d.a;
     36   result.d.b = b0.b + b1.ff + b2.d.b;
     37   result.d.c = b0.c + b1.ii + b2.d.c;
     38   result.e.ii = b0.c + b1.ii + b2.e.ii;
     39   result.e.dd = b0.a + b1.dd + b2.e.dd;
     40   result.e.ff = b0.b + b1.ff + b2.e.ff;
     41 
     42   printf("%g %g %d %d %g %g %g %g %d %d %g %g %g %g %d: %g %g %d %d %g %g\n",
     43 	 b0.a, b0.b, b0.c,
     44 	 b1.ii, b1.dd, b1.ff,
     45 	 b2.d.a, b2.d.b, b2.d.c,
     46 	 b2.e.ii, b2.e.dd, b2.e.ff,
     47 	 b3.a, b3.b, b3.c,
     48 	 result.d.a, result.d.b, result.d.c,
     49 	 result.e.ii, result.e.dd, result.e.ff);
     50 
     51   return result;
     52 }
     53 
     54 static void
     55 cls_struct_combined_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
     56 		       void* userdata __UNUSED__)
     57 {
     58   struct cls_struct_16byte1 b0;
     59   struct cls_struct_16byte2 b1;
     60   struct cls_struct_combined b2;
     61   struct cls_struct_16byte1 b3;
     62 
     63   b0 = *(struct cls_struct_16byte1*)(args[0]);
     64   b1 = *(struct cls_struct_16byte2*)(args[1]);
     65   b2 = *(struct cls_struct_combined*)(args[2]);
     66   b3 = *(struct cls_struct_16byte1*)(args[3]);
     67 
     68 
     69   *(cls_struct_combined*)resp = cls_struct_combined_fn(b0, b1, b2, b3);
     70 }
     71 
     72 int main (void)
     73 {
     74   ffi_cif cif;
     75 #ifndef USING_MMAP
     76   static ffi_closure cl;
     77 #endif
     78   ffi_closure *pcl;
     79   void* args_dbl[5];
     80   ffi_type* cls_struct_fields[5];
     81   ffi_type* cls_struct_fields1[5];
     82   ffi_type* cls_struct_fields2[5];
     83   ffi_type cls_struct_type, cls_struct_type1, cls_struct_type2;
     84   ffi_type* dbl_arg_types[5];
     85 
     86 #ifdef USING_MMAP
     87   pcl = allocate_mmap (sizeof(ffi_closure));
     88 #else
     89   pcl = &cl;
     90 #endif
     91 
     92   cls_struct_type.size = 0;
     93   cls_struct_type.alignment = 0;
     94   cls_struct_type.type = FFI_TYPE_STRUCT;
     95   cls_struct_type.elements = cls_struct_fields;
     96 
     97   cls_struct_type1.size = 0;
     98   cls_struct_type1.alignment = 0;
     99   cls_struct_type1.type = FFI_TYPE_STRUCT;
    100   cls_struct_type1.elements = cls_struct_fields1;
    101 
    102   cls_struct_type2.size = 0;
    103   cls_struct_type2.alignment = 0;
    104   cls_struct_type2.type = FFI_TYPE_STRUCT;
    105   cls_struct_type2.elements = cls_struct_fields2;
    106 
    107   struct cls_struct_16byte1 e_dbl = { 9.0, 2.0, 6};
    108   struct cls_struct_16byte2 f_dbl = { 1, 2.0, 3.0};
    109   struct cls_struct_combined g_dbl = {{4.0, 5.0, 6},
    110 				      {3, 1.0, 8.0}};
    111   struct cls_struct_16byte1 h_dbl = { 3.0, 2.0, 4};
    112   struct cls_struct_combined res_dbl;
    113 
    114   cls_struct_fields[0] = &ffi_type_double;
    115   cls_struct_fields[1] = &ffi_type_float;
    116   cls_struct_fields[2] = &ffi_type_sint;
    117   cls_struct_fields[3] = NULL;
    118 
    119   cls_struct_fields1[0] = &ffi_type_sint;
    120   cls_struct_fields1[1] = &ffi_type_double;
    121   cls_struct_fields1[2] = &ffi_type_float;
    122   cls_struct_fields1[3] = NULL;
    123 
    124   cls_struct_fields2[0] = &cls_struct_type;
    125   cls_struct_fields2[1] = &cls_struct_type1;
    126   cls_struct_fields2[2] = NULL;
    127 
    128 
    129   dbl_arg_types[0] = &cls_struct_type;
    130   dbl_arg_types[1] = &cls_struct_type1;
    131   dbl_arg_types[2] = &cls_struct_type2;
    132   dbl_arg_types[3] = &cls_struct_type;
    133   dbl_arg_types[4] = NULL;
    134 
    135   CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 4, &cls_struct_type2,
    136 		     dbl_arg_types) == FFI_OK);
    137 
    138   args_dbl[0] = &e_dbl;
    139   args_dbl[1] = &f_dbl;
    140   args_dbl[2] = &g_dbl;
    141   args_dbl[3] = &h_dbl;
    142   args_dbl[4] = NULL;
    143 
    144   ffi_call(&cif, FFI_FN(cls_struct_combined_fn), &res_dbl, args_dbl);
    145   /* { dg-output "9 2 6 1 2 3 4 5 6 3 1 8 3 2 4: 15 10 13 10 12 13" } */
    146   CHECK( res_dbl.d.a == (e_dbl.a + f_dbl.dd + g_dbl.d.a));
    147   CHECK( res_dbl.d.b == (e_dbl.b + f_dbl.ff + g_dbl.d.b));
    148   CHECK( res_dbl.d.c == (e_dbl.c + f_dbl.ii + g_dbl.d.c));
    149   CHECK( res_dbl.e.ii == (e_dbl.c + f_dbl.ii + g_dbl.e.ii));
    150   CHECK( res_dbl.e.dd == (e_dbl.a + f_dbl.dd + g_dbl.e.dd));
    151   CHECK( res_dbl.e.ff == (e_dbl.b + f_dbl.ff + g_dbl.e.ff));
    152 
    153   CHECK(ffi_prep_closure(pcl, &cif, cls_struct_combined_gn, NULL) == FFI_OK);
    154 
    155   res_dbl = ((cls_struct_combined(*)(cls_struct_16byte1,
    156 				     cls_struct_16byte2,
    157 				     cls_struct_combined,
    158 				     cls_struct_16byte1))
    159 	     (pcl))(e_dbl, f_dbl, g_dbl, h_dbl);
    160   /* { dg-output "\n9 2 6 1 2 3 4 5 6 3 1 8 3 2 4: 15 10 13 10 12 13" } */
    161   CHECK( res_dbl.d.a == (e_dbl.a + f_dbl.dd + g_dbl.d.a));
    162   CHECK( res_dbl.d.b == (e_dbl.b + f_dbl.ff + g_dbl.d.b));
    163   CHECK( res_dbl.d.c == (e_dbl.c + f_dbl.ii + g_dbl.d.c));
    164   CHECK( res_dbl.e.ii == (e_dbl.c + f_dbl.ii + g_dbl.e.ii));
    165   CHECK( res_dbl.e.dd == (e_dbl.a + f_dbl.dd + g_dbl.e.dd));
    166   CHECK( res_dbl.e.ff == (e_dbl.b + f_dbl.ff + g_dbl.e.ff));
    167   //  CHECK( 1 == 0);
    168   exit(0);
    169 }
    170