libffi/testsuite/libffi.call/cls_align_longdouble_split2.c

   1 /*      Area:                   ffi_call, closure_call
   2         Purpose:                Check structure alignment of long double.
   3         Limitations:    none.
   4         PR:                             none.
   5         Originator:             Blake Chaffin   6/18/2007
   6 */
   7
   8 /* { dg-excess-errors "no long double format" { xfail x86_64-*-mingw* x86_64-*-cygwin* } } */
   9 /* { dg-do run { xfail strongarm*-*-* } } */
  10 /* { dg-options -mlong-double-128 { target powerpc64*-*-linux* } } */
  11 /* { dg-output "" { xfail x86_64-*-mingw* x86_64-*-cygwin* } } */
  12
  13 #include "ffitest.h"
  14
  15 typedef struct cls_struct_align {
  16   long double a;
  17   long double b;
  18   long double c;
  19   long double d;
  20   long double e;
  21   double f;
  22   long double g;
  23 } cls_struct_align;
  24
  25 cls_struct_align cls_struct_align_fn(
  26         cls_struct_align        a1,
  27         cls_struct_align        a2)
  28 {
  29         struct cls_struct_align r;
  30
  31         r.a = a1.a + a2.a;
  32         r.b = a1.b + a2.b;
  33         r.c = a1.c + a2.c;
  34         r.d = a1.d + a2.d;
  35         r.e = a1.e + a2.e;
  36         r.f = a1.f + a2.f;
  37         r.g = a1.g + a2.g;
  38
  39         printf("%Lg %Lg %Lg %Lg %Lg %g %Lg %Lg %Lg %Lg %Lg %Lg %g %Lg: "
  40                 "%Lg %Lg %Lg %Lg %Lg %g %Lg\n",
  41                 a1.a, a1.b, a1.c, a1.d, a1.e, a1.f, a1.g,
  42                 a2.a, a2.b, a2.c, a2.d, a2.e, a2.f, a2.g,
  43                 r.a, r.b, r.c, r.d, r.e, r.f, r.g);
  44
  45         return r;
  46 }
  47
  48 static void
  49 cls_struct_align_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
  50                     void* userdata __UNUSED__)
  51 {
  52         struct cls_struct_align a1, a2;
  53
  54         a1 = *(struct cls_struct_align*)(args[0]);
  55         a2 = *(struct cls_struct_align*)(args[1]);
  56
  57         *(cls_struct_align*)resp = cls_struct_align_fn(a1, a2);
  58 }
  59
  60 int main (void)
  61 {
  62         ffi_cif cif;
  63         void *code;
  64         ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
  65         void* args_dbl[3];
  66         ffi_type* cls_struct_fields[8];
  67         ffi_type cls_struct_type;
  68         ffi_type* dbl_arg_types[3];
  69
  70         cls_struct_type.size = 0;
  71         cls_struct_type.alignment = 0;
  72         cls_struct_type.type = FFI_TYPE_STRUCT;
  73         cls_struct_type.elements = cls_struct_fields;
  74
  75         struct cls_struct_align g_dbl = { 1, 2, 3, 4, 5, 6, 7 };
  76         struct cls_struct_align f_dbl = { 8, 9, 10, 11, 12, 13, 14 };
  77         struct cls_struct_align res_dbl;
  78
  79         cls_struct_fields[0] = &ffi_type_longdouble;
  80         cls_struct_fields[1] = &ffi_type_longdouble;
  81         cls_struct_fields[2] = &ffi_type_longdouble;
  82         cls_struct_fields[3] = &ffi_type_longdouble;
  83         cls_struct_fields[4] = &ffi_type_longdouble;
  84         cls_struct_fields[5] = &ffi_type_double;
  85         cls_struct_fields[6] = &ffi_type_longdouble;
  86         cls_struct_fields[7] = NULL;
  87
  88         dbl_arg_types[0] = &cls_struct_type;
  89         dbl_arg_types[1] = &cls_struct_type;
  90         dbl_arg_types[2] = NULL;
  91
  92         CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
  93                 dbl_arg_types) == FFI_OK);
  94
  95         args_dbl[0] = &g_dbl;
  96         args_dbl[1] = &f_dbl;
  97         args_dbl[2] = NULL;
  98
  99         ffi_call(&cif, FFI_FN(cls_struct_align_fn), &res_dbl, args_dbl);
 100         /* { dg-output "1 2 3 4 5 6 7 8 9 10 11 12 13 14: 9 11 13 15 17 19 21" } */
 101         printf("res: %Lg %Lg %Lg %Lg %Lg %g %Lg\n", res_dbl.a, res_dbl.b,
 102                 res_dbl.c, res_dbl.d, res_dbl.e, res_dbl.f, res_dbl.g);
 103         /* { dg-output "\nres: 9 11 13 15 17 19 21" } */
 104
 105         CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_align_gn, NULL, code) == FFI_OK);
 106
 107         res_dbl = ((cls_struct_align(*)(cls_struct_align, cls_struct_align))(code))(g_dbl, f_dbl);
 108         /* { dg-output "\n1 2 3 4 5 6 7 8 9 10 11 12 13 14: 9 11 13 15 17 19 21" } */
 109         printf("res: %Lg %Lg %Lg %Lg %Lg %g %Lg\n", res_dbl.a, res_dbl.b,
 110                 res_dbl.c, res_dbl.d, res_dbl.e, res_dbl.f, res_dbl.g);
 111         /* { dg-output "\nres: 9 11 13 15 17 19 21" } */
 112
 113   exit(0);
 114 }
 115
 116
 117