1 /* Area:	ffi_call, closure_call
2    Purpose:	Check structure passing with different structure size.
3 		Depending on the ABI. Darwin/AIX do double-word
4 		alignment of the struct if the first element is a double.
5 		Check that it does not here.
6    Limitations:	none.
7    PR:		none.
8    Originator:	<andreast@gcc.gnu.org> 20030914	 */
9 
10 /* { dg-do run } */
11 #include "ffitest.h"
12 
13 typedef struct cls_struct_9byte {
14   int a;
15   double b;
16 } cls_struct_9byte;
17 
cls_struct_9byte_fn(struct cls_struct_9byte b1,struct cls_struct_9byte b2)18 cls_struct_9byte cls_struct_9byte_fn(struct cls_struct_9byte b1,
19 			    struct cls_struct_9byte b2)
20 {
21   struct cls_struct_9byte result;
22 
23   result.a = b1.a + b2.a;
24   result.b = b1.b + b2.b;
25 
26   printf("%d %g %d %g: %d %g\n", b1.a, b1.b,  b2.a, b2.b,
27 	 result.a, result.b);
28 
29   return result;
30 }
31 
cls_struct_9byte_gn(ffi_cif * cif __UNUSED__,void * resp,void ** args,void * userdata __UNUSED__)32 static void cls_struct_9byte_gn(ffi_cif* cif __UNUSED__, void* resp,
33 				void** args, void* userdata __UNUSED__)
34 {
35   struct cls_struct_9byte b1, b2;
36 
37   b1 = *(struct cls_struct_9byte*)(args[0]);
38   b2 = *(struct cls_struct_9byte*)(args[1]);
39 
40   *(cls_struct_9byte*)resp = cls_struct_9byte_fn(b1, b2);
41 }
42 
main(void)43 int main (void)
44 {
45   ffi_cif cif;
46   void *code;
47   ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
48   void* args_dbl[3];
49   ffi_type* cls_struct_fields[3];
50   ffi_type cls_struct_type;
51   ffi_type* dbl_arg_types[3];
52 
53   struct cls_struct_9byte h_dbl = { 7, 8.0};
54   struct cls_struct_9byte j_dbl = { 1, 9.0};
55   struct cls_struct_9byte res_dbl;
56 
57   cls_struct_type.size = 0;
58   cls_struct_type.alignment = 0;
59   cls_struct_type.type = FFI_TYPE_STRUCT;
60   cls_struct_type.elements = cls_struct_fields;
61 
62   cls_struct_fields[0] = &ffi_type_sint;
63   cls_struct_fields[1] = &ffi_type_double;
64   cls_struct_fields[2] = NULL;
65 
66   dbl_arg_types[0] = &cls_struct_type;
67   dbl_arg_types[1] = &cls_struct_type;
68   dbl_arg_types[2] = NULL;
69 
70   CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
71 		     dbl_arg_types) == FFI_OK);
72 
73   args_dbl[0] = &h_dbl;
74   args_dbl[1] = &j_dbl;
75   args_dbl[2] = NULL;
76 
77   ffi_call(&cif, FFI_FN(cls_struct_9byte_fn), &res_dbl, args_dbl);
78   /* { dg-output "7 8 1 9: 8 17" } */
79   printf("res: %d %g\n", res_dbl.a, res_dbl.b);
80   /* { dg-output "\nres: 8 17" } */
81 
82   CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_9byte_gn, NULL, code) == FFI_OK);
83 
84   res_dbl = ((cls_struct_9byte(*)(cls_struct_9byte, cls_struct_9byte))(code))(h_dbl, j_dbl);
85   /* { dg-output "\n7 8 1 9: 8 17" } */
86   printf("res: %d %g\n", res_dbl.a, res_dbl.b);
87   /* { dg-output "\nres: 8 17" } */
88 
89   exit(0);
90 }
91