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1 /* Area:	ffi_call, closure_call
2    Purpose:	Check structure alignment of double.
3    Limitations:	none.
4    PR:		none.
5    Originator:	<hos@tamanegi.org> 20031203	 */
6 
7 
8 
9 /* { dg-do run } */
10 #include "ffitest.h"
11 
12 typedef struct cls_struct_align {
13   unsigned char a;
14   double b;
15   unsigned char c;
16 } cls_struct_align;
17 
cls_struct_align_fn(struct cls_struct_align a1,struct cls_struct_align a2)18 cls_struct_align cls_struct_align_fn(struct cls_struct_align a1,
19 			    struct cls_struct_align a2)
20 {
21   struct cls_struct_align result;
22 
23   result.a = a1.a + a2.a;
24   result.b = a1.b + a2.b;
25   result.c = a1.c + a2.c;
26 
27   printf("%d %g %d %d %g %d: %d %g %d\n", a1.a, a1.b, a1.c, a2.a, a2.b, a2.c, result.a, result.b, result.c);
28 
29   return  result;
30 }
31 
32 static void
cls_struct_align_gn(ffi_cif * cif __UNUSED__,void * resp,void ** args,void * userdata __UNUSED__)33 cls_struct_align_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
34 		    void* userdata __UNUSED__)
35 {
36 
37   struct cls_struct_align a1, a2;
38 
39   a1 = *(struct cls_struct_align*)(args[0]);
40   a2 = *(struct cls_struct_align*)(args[1]);
41 
42   *(cls_struct_align*)resp = cls_struct_align_fn(a1, a2);
43 }
44 
main(void)45 int main (void)
46 {
47   ffi_cif cif;
48   void *code;
49   ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
50   void* args_dbl[5];
51   ffi_type* cls_struct_fields[4];
52   ffi_type cls_struct_type;
53   ffi_type* dbl_arg_types[5];
54 
55   struct cls_struct_align g_dbl = { 12, 4951, 127 };
56   struct cls_struct_align f_dbl = { 1, 9320, 13 };
57   struct cls_struct_align res_dbl;
58 
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;
63 
64   cls_struct_fields[0] = &ffi_type_uchar;
65   cls_struct_fields[1] = &ffi_type_double;
66   cls_struct_fields[2] = &ffi_type_uchar;
67   cls_struct_fields[3] = NULL;
68 
69   dbl_arg_types[0] = &cls_struct_type;
70   dbl_arg_types[1] = &cls_struct_type;
71   dbl_arg_types[2] = NULL;
72 
73   CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
74 		     dbl_arg_types) == FFI_OK);
75 
76   args_dbl[0] = &g_dbl;
77   args_dbl[1] = &f_dbl;
78   args_dbl[2] = NULL;
79 
80   ffi_call(&cif, FFI_FN(cls_struct_align_fn), &res_dbl, args_dbl);
81   /* { dg-output "12 4951 127 1 9320 13: 13 14271 140" } */
82   printf("res: %d %g %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
83   /* { dg-output "\nres: 13 14271 140" } */
84 
85   CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_align_gn, NULL, code) == FFI_OK);
86 
87   res_dbl = ((cls_struct_align(*)(cls_struct_align, cls_struct_align))(code))(g_dbl, f_dbl);
88   /* { dg-output "\n12 4951 127 1 9320 13: 13 14271 140" } */
89   printf("res: %d %g %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
90   /* { dg-output "\nres: 13 14271 140" } */
91 
92   exit(0);
93 }
94