1 /* Area: ffi_call, closure_call 2 Purpose: Check structure alignment of long double. 3 Limitations: none. 4 PR: none. 5 Originator: <hos (at) tamanegi.org> 20031203 */ 6 7 /* { dg-do run } */ 8 9 #include "ffitest.h" 10 11 typedef struct cls_struct_align { 12 unsigned char a; 13 long double b; 14 unsigned char c; 15 } cls_struct_align; 16 17 cls_struct_align cls_struct_align_fn(struct cls_struct_align a1, 18 struct cls_struct_align a2) 19 { 20 struct cls_struct_align result; 21 22 result.a = a1.a + a2.a; 23 result.b = a1.b + a2.b; 24 result.c = a1.c + a2.c; 25 26 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); 27 28 return result; 29 } 30 31 static void 32 cls_struct_align_gn(ffi_cif* cif __UNUSED__, void* resp, void** args, 33 void* userdata __UNUSED__) 34 { 35 36 struct cls_struct_align a1, a2; 37 38 a1 = *(struct cls_struct_align*)(args[0]); 39 a2 = *(struct cls_struct_align*)(args[1]); 40 41 *(cls_struct_align*)resp = cls_struct_align_fn(a1, a2); 42 } 43 44 int main (void) 45 { 46 ffi_cif cif; 47 void *code; 48 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code); 49 void* args_dbl[5]; 50 ffi_type* cls_struct_fields[4]; 51 ffi_type cls_struct_type; 52 ffi_type* dbl_arg_types[5]; 53 54 struct cls_struct_align g_dbl = { 12, 4951, 127 }; 55 struct cls_struct_align f_dbl = { 1, 9320, 13 }; 56 struct cls_struct_align res_dbl; 57 58 cls_struct_type.size = 0; 59 cls_struct_type.alignment = 0; 60 cls_struct_type.type = FFI_TYPE_STRUCT; 61 cls_struct_type.elements = cls_struct_fields; 62 63 cls_struct_fields[0] = &ffi_type_uchar; 64 cls_struct_fields[1] = &ffi_type_longdouble; 65 cls_struct_fields[2] = &ffi_type_uchar; 66 cls_struct_fields[3] = NULL; 67 68 dbl_arg_types[0] = &cls_struct_type; 69 dbl_arg_types[1] = &cls_struct_type; 70 dbl_arg_types[2] = NULL; 71 72 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type, 73 dbl_arg_types) == FFI_OK); 74 75 args_dbl[0] = &g_dbl; 76 args_dbl[1] = &f_dbl; 77 args_dbl[2] = NULL; 78 79 ffi_call(&cif, FFI_FN(cls_struct_align_fn), &res_dbl, args_dbl); 80 /* { dg-output "12 4951 127 1 9320 13: 13 14271 140" } */ 81 printf("res: %d %g %d\n", res_dbl.a, (double)res_dbl.b, res_dbl.c); 82 /* { dg-output "\nres: 13 14271 140" } */ 83 84 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_align_gn, NULL, code) == FFI_OK); 85 86 res_dbl = ((cls_struct_align(*)(cls_struct_align, cls_struct_align))(code))(g_dbl, f_dbl); 87 /* { dg-output "\n12 4951 127 1 9320 13: 13 14271 140" } */ 88 printf("res: %d %g %d\n", res_dbl.a, (double)res_dbl.b, res_dbl.c); 89 /* { dg-output "\nres: 13 14271 140" } */ 90 91 exit(0); 92 } 93
