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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 
11 typedef struct cls_struct_18byte {
12   double a;
13   unsigned char b;
14   unsigned char c;
15   double d;
16 } cls_struct_18byte;
17 
cls_struct_18byte_fn(struct cls_struct_18byte a1,struct cls_struct_18byte a2)18 cls_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 
35 static void
cls_struct_18byte_gn(ffi_cif * cif __UNUSED__,void * resp,void ** args,void * userdata __UNUSED__)36 cls_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 
main(void)47 int main (void)
48 {
49   ffi_cif cif;
50   void *code;
51   ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
52   void* args_dbl[3];
53   ffi_type* cls_struct_fields[5];
54   ffi_type cls_struct_type;
55   ffi_type* dbl_arg_types[3];
56 
57   struct cls_struct_18byte g_dbl = { 1.0, 127, 126, 3.0 };
58   struct cls_struct_18byte f_dbl = { 4.0, 125, 124, 5.0 };
59   struct cls_struct_18byte res_dbl;
60 
61   cls_struct_type.size = 0;
62   cls_struct_type.alignment = 0;
63   cls_struct_type.type = FFI_TYPE_STRUCT;
64   cls_struct_type.elements = cls_struct_fields;
65 
66   cls_struct_fields[0] = &ffi_type_double;
67   cls_struct_fields[1] = &ffi_type_uchar;
68   cls_struct_fields[2] = &ffi_type_uchar;
69   cls_struct_fields[3] = &ffi_type_double;
70   cls_struct_fields[4] = NULL;
71 
72   dbl_arg_types[0] = &cls_struct_type;
73   dbl_arg_types[1] = &cls_struct_type;
74   dbl_arg_types[2] = NULL;
75 
76   CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
77 		     dbl_arg_types) == FFI_OK);
78 
79   args_dbl[0] = &g_dbl;
80   args_dbl[1] = &f_dbl;
81   args_dbl[2] = NULL;
82 
83   ffi_call(&cif, FFI_FN(cls_struct_18byte_fn), &res_dbl, args_dbl);
84   /* { dg-output "1 127 126 3 4 125 124 5: 5 252 250 8" } */
85   printf("res: %g %d %d %g\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
86   /* { dg-output "\nres: 5 252 250 8" } */
87 
88   CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_18byte_gn, NULL, code) == FFI_OK);
89 
90   res_dbl = ((cls_struct_18byte(*)(cls_struct_18byte, cls_struct_18byte))(code))(g_dbl, f_dbl);
91   /* { dg-output "\n1 127 126 3 4 125 124 5: 5 252 250 8" } */
92   printf("res: %g %d %d %g\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
93   /* { dg-output "\nres: 5 252 250 8" } */
94 
95   exit(0);
96 }
97