Viewing file:  cls_align_float.c (2.5 KB) -rw-r--r--
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/* Area: ffi_call, closure_call
Purpose: Check structure alignment of float.
Limitations: none.
PR: none.
Originator: <hos@tamanegi.org> 20031203 */
/* { dg-do run } */
#include "ffitest.h"
typedef struct cls_struct_align {
unsigned char a;
float b;
unsigned char c;
} cls_struct_align;
static cls_struct_align cls_struct_align_fn(struct cls_struct_align a1,
struct cls_struct_align a2)
{
struct cls_struct_align result;
result.a = a1.a + a2.a;
result.b = a1.b + a2.b;
result.c = a1.c + a2.c;
printf("%d %g %d %d %g %d: %d %g %d\n", a1.a, (double)a1.b, a1.c, a2.a, (double)a2.b, a2.c, result.a, (double)result.b, result.c);
return result;
}
static void
cls_struct_align_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
void* userdata __UNUSED__)
{
struct cls_struct_align a1, a2;
a1 = *(struct cls_struct_align*)(args[0]);
a2 = *(struct cls_struct_align*)(args[1]);
*(cls_struct_align*)resp = cls_struct_align_fn(a1, a2);
}
int main (void)
{
ffi_cif cif;
void *code;
ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
void* args_dbl[5];
ffi_type* cls_struct_fields[4];
ffi_type cls_struct_type;
ffi_type* dbl_arg_types[5];
struct cls_struct_align g_dbl = { 12, 4951, 127 };
struct cls_struct_align f_dbl = { 1, 9320, 13 };
struct cls_struct_align res_dbl;
cls_struct_type.size = 0;
cls_struct_type.alignment = 0;
cls_struct_type.type = FFI_TYPE_STRUCT;
cls_struct_type.elements = cls_struct_fields;
cls_struct_fields[0] = &ffi_type_uchar;
cls_struct_fields[1] = &ffi_type_float;
cls_struct_fields[2] = &ffi_type_uchar;
cls_struct_fields[3] = NULL;
dbl_arg_types[0] = &cls_struct_type;
dbl_arg_types[1] = &cls_struct_type;
dbl_arg_types[2] = NULL;
CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
dbl_arg_types) == FFI_OK);
args_dbl[0] = &g_dbl;
args_dbl[1] = &f_dbl;
args_dbl[2] = NULL;
ffi_call(&cif, FFI_FN(cls_struct_align_fn), &res_dbl, args_dbl);
/* { dg-output "12 4951 127 1 9320 13: 13 14271 140" } */
printf("res: %d %g %d\n", res_dbl.a, (double)res_dbl.b, res_dbl.c);
/* { dg-output "\nres: 13 14271 140" } */
CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_align_gn, NULL, code) == FFI_OK);
res_dbl = ((cls_struct_align(*)(cls_struct_align, cls_struct_align))(code))(g_dbl, f_dbl);
/* { dg-output "\n12 4951 127 1 9320 13: 13 14271 140" } */
printf("res: %d %g %d\n", res_dbl.a, (double)res_dbl.b, res_dbl.c);
/* { dg-output "\nres: 13 14271 140" } */
exit(0);
}
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