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
11typedef struct cls_struct_18byte {
12  double a;
13  unsigned char b;
14  unsigned char c;
15  double d;
16} cls_struct_18byte;
17
18cls_struct_18byte cls_struct_18byte_fn(struct cls_struct_18byte a1,
19			    struct cls_struct_18byte a2)
20{
21  struct cls_struct_18byte result;
22
23  result.a = a1.a + a2.a;
24  result.b = a1.b + a2.b;
25  result.c = a1.c + a2.c;
26  result.d = a1.d + a2.d;
27
28
29  printf("%g %d %d %g %g %d %d %g: %g %d %d %g\n", a1.a, a1.b, a1.c, a1.d,
30	 a2.a, a2.b, a2.c, a2.d,
31	 result.a, result.b, result.c, result.d);
32  return result;
33}
34
35static void
36cls_struct_18byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
37		     void* userdata __UNUSED__)
38{
39  struct cls_struct_18byte a1, a2;
40
41  a1 = *(struct cls_struct_18byte*)(args[0]);
42  a2 = *(struct cls_struct_18byte*)(args[1]);
43
44  *(cls_struct_18byte*)resp = cls_struct_18byte_fn(a1, a2);
45}
46
47int main (void)
48{
49  ffi_cif cif;
50#ifndef USING_MMAP
51  static ffi_closure cl;
52#endif
53  ffi_closure *pcl;
54  void* args_dbl[3];
55  ffi_type* cls_struct_fields[5];
56  ffi_type cls_struct_type;
57  ffi_type* dbl_arg_types[3];
58
59#ifdef USING_MMAP
60  pcl = allocate_mmap (sizeof(ffi_closure));
61#else
62  pcl = &cl;
63#endif
64
65  cls_struct_type.size = 0;
66  cls_struct_type.alignment = 0;
67  cls_struct_type.type = FFI_TYPE_STRUCT;
68  cls_struct_type.elements = cls_struct_fields;
69
70  struct cls_struct_18byte g_dbl = { 1.0, 127, 126, 3.0 };
71  struct cls_struct_18byte f_dbl = { 4.0, 125, 124, 5.0 };
72  struct cls_struct_18byte res_dbl;
73
74  cls_struct_fields[0] = &ffi_type_double;
75  cls_struct_fields[1] = &ffi_type_uchar;
76  cls_struct_fields[2] = &ffi_type_uchar;
77  cls_struct_fields[3] = &ffi_type_double;
78  cls_struct_fields[4] = NULL;
79
80  dbl_arg_types[0] = &cls_struct_type;
81  dbl_arg_types[1] = &cls_struct_type;
82  dbl_arg_types[2] = NULL;
83
84  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
85		     dbl_arg_types) == FFI_OK);
86
87  args_dbl[0] = &g_dbl;
88  args_dbl[1] = &f_dbl;
89  args_dbl[2] = NULL;
90
91  ffi_call(&cif, FFI_FN(cls_struct_18byte_fn), &res_dbl, args_dbl);
92  /* { dg-output "1 127 126 3 4 125 124 5: 5 252 250 8" } */
93  printf("res: %g %d %d %g\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
94  /* { dg-output "\nres: 5 252 250 8" } */
95
96  CHECK(ffi_prep_closure(pcl, &cif, cls_struct_18byte_gn, NULL) == FFI_OK);
97
98  res_dbl = ((cls_struct_18byte(*)(cls_struct_18byte, cls_struct_18byte))(pcl))(g_dbl, f_dbl);
99  /* { dg-output "\n1 127 126 3 4 125 124 5: 5 252 250 8" } */
100  printf("res: %g %d %d %g\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
101  /* { dg-output "\nres: 5 252 250 8" } */
102
103  exit(0);
104}
105