1/* Area:	ffi_call, closure_call
2   Purpose:	Check structure passing with different structure size.
3		Especially with small structures which may fit in one
4		register. Depending on the ABI.
5   Limitations:	none.
6   PR:		none.
7   Originator:	<andreast@gcc.gnu.org> 20030902	 */
8
9/* { dg-do run } */
10#include "ffitest.h"
11
12typedef struct cls_struct_4_1byte {
13  unsigned char a;
14  unsigned char b;
15  unsigned char c;
16  unsigned char d;
17} cls_struct_4_1byte;
18
19cls_struct_4_1byte cls_struct_4_1byte_fn(struct cls_struct_4_1byte a1,
20			    struct cls_struct_4_1byte a2)
21{
22  struct cls_struct_4_1byte result;
23
24  result.a = a1.a + a2.a;
25  result.b = a1.b + a2.b;
26  result.c = a1.c + a2.c;
27  result.d = a1.d + a2.d;
28
29  printf("%d %d %d %d %d %d %d %d: %d %d %d %d\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
33  return  result;
34}
35
36static void
37cls_struct_4_1byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
38		      void* userdata __UNUSED__)
39{
40
41  struct cls_struct_4_1byte a1, a2;
42
43  a1 = *(struct cls_struct_4_1byte*)(args[0]);
44  a2 = *(struct cls_struct_4_1byte*)(args[1]);
45
46  *(cls_struct_4_1byte*)resp = cls_struct_4_1byte_fn(a1, a2);
47}
48
49int main (void)
50{
51  ffi_cif cif;
52#ifndef USING_MMAP
53  static ffi_closure cl;
54#endif
55  ffi_closure *pcl;
56  void* args_dbl[5];
57  ffi_type* cls_struct_fields[5];
58  ffi_type cls_struct_type;
59  ffi_type* dbl_arg_types[5];
60
61#ifdef USING_MMAP
62  pcl = allocate_mmap (sizeof(ffi_closure));
63#else
64  pcl = &cl;
65#endif
66
67  cls_struct_type.size = 0;
68  cls_struct_type.alignment = 0;
69  cls_struct_type.type = FFI_TYPE_STRUCT;
70  cls_struct_type.elements = cls_struct_fields;
71
72  struct cls_struct_4_1byte g_dbl = { 12, 13, 14, 15 };
73  struct cls_struct_4_1byte f_dbl = { 178, 179, 180, 181 };
74  struct cls_struct_4_1byte res_dbl;
75
76  cls_struct_fields[0] = &ffi_type_uchar;
77  cls_struct_fields[1] = &ffi_type_uchar;
78  cls_struct_fields[2] = &ffi_type_uchar;
79  cls_struct_fields[3] = &ffi_type_uchar;
80  cls_struct_fields[4] = NULL;
81
82  dbl_arg_types[0] = &cls_struct_type;
83  dbl_arg_types[1] = &cls_struct_type;
84  dbl_arg_types[2] = NULL;
85
86  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
87		     dbl_arg_types) == FFI_OK);
88
89  args_dbl[0] = &g_dbl;
90  args_dbl[1] = &f_dbl;
91  args_dbl[2] = NULL;
92
93  ffi_call(&cif, FFI_FN(cls_struct_4_1byte_fn), &res_dbl, args_dbl);
94  /* { dg-output "12 13 14 15 178 179 180 181: 190 192 194 196" } */
95  printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
96  /* { dg-output "\nres: 190 192 194 196" } */
97
98  CHECK(ffi_prep_closure(pcl, &cif, cls_struct_4_1byte_gn, NULL) == FFI_OK);
99
100  res_dbl = ((cls_struct_4_1byte(*)(cls_struct_4_1byte, cls_struct_4_1byte))(pcl))(g_dbl, f_dbl);
101  /* { dg-output "\n12 13 14 15 178 179 180 181: 190 192 194 196" } */
102  printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
103  /* { dg-output "\nres: 190 192 194 196" } */
104
105  exit(0);
106}
107