Fix a bug in cfg fixup
[official-gcc.git] / libffi / testsuite / libffi.call / cls_4_1byte.c
blobf3806d7ba1c9e764a2f7e939328402fc1a7b9797
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 */
9 /* { dg-do run } */
10 #include "ffitest.h"
12 typedef 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;
19 cls_struct_4_1byte cls_struct_4_1byte_fn(struct cls_struct_4_1byte a1,
20 struct cls_struct_4_1byte a2)
22 struct cls_struct_4_1byte result;
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;
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);
33 return result;
36 static void
37 cls_struct_4_1byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
38 void* userdata __UNUSED__)
41 struct cls_struct_4_1byte a1, a2;
43 a1 = *(struct cls_struct_4_1byte*)(args[0]);
44 a2 = *(struct cls_struct_4_1byte*)(args[1]);
46 *(cls_struct_4_1byte*)resp = cls_struct_4_1byte_fn(a1, a2);
49 int main (void)
51 ffi_cif cif;
52 void *code;
53 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
54 void* args_dbl[5];
55 ffi_type* cls_struct_fields[5];
56 ffi_type cls_struct_type;
57 ffi_type* dbl_arg_types[5];
59 cls_struct_type.size = 0;
60 cls_struct_type.alignment = 0;
61 cls_struct_type.type = FFI_TYPE_STRUCT;
62 cls_struct_type.elements = cls_struct_fields;
64 struct cls_struct_4_1byte g_dbl = { 12, 13, 14, 15 };
65 struct cls_struct_4_1byte f_dbl = { 178, 179, 180, 181 };
66 struct cls_struct_4_1byte res_dbl;
68 cls_struct_fields[0] = &ffi_type_uchar;
69 cls_struct_fields[1] = &ffi_type_uchar;
70 cls_struct_fields[2] = &ffi_type_uchar;
71 cls_struct_fields[3] = &ffi_type_uchar;
72 cls_struct_fields[4] = NULL;
74 dbl_arg_types[0] = &cls_struct_type;
75 dbl_arg_types[1] = &cls_struct_type;
76 dbl_arg_types[2] = NULL;
78 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
79 dbl_arg_types) == FFI_OK);
81 args_dbl[0] = &g_dbl;
82 args_dbl[1] = &f_dbl;
83 args_dbl[2] = NULL;
85 ffi_call(&cif, FFI_FN(cls_struct_4_1byte_fn), &res_dbl, args_dbl);
86 /* { dg-output "12 13 14 15 178 179 180 181: 190 192 194 196" } */
87 printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
88 /* { dg-output "\nres: 190 192 194 196" } */
90 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_4_1byte_gn, NULL, code) == FFI_OK);
92 res_dbl = ((cls_struct_4_1byte(*)(cls_struct_4_1byte, cls_struct_4_1byte))(code))(g_dbl, f_dbl);
93 /* { dg-output "\n12 13 14 15 178 179 180 181: 190 192 194 196" } */
94 printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
95 /* { dg-output "\nres: 190 192 194 196" } */
97 exit(0);