github.com/prattmic/llgo-embedded@v0.0.0-20150820070356-41cfecea0e1e/third_party/gofrontend/libffi/testsuite/libffi.call/cls_align_longdouble_split2.c (about)

     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-do run { xfail strongarm*-*-* } } */
     9  /* { dg-options -mlong-double-128 { target powerpc64*-*-linux* } } */
    10  
    11  #include "ffitest.h"
    12  
    13  typedef struct cls_struct_align {
    14    long double a;
    15    long double b;
    16    long double c;
    17    long double d;
    18    long double e;
    19    double f;
    20    long double g;
    21  } cls_struct_align;
    22  
    23  cls_struct_align cls_struct_align_fn(
    24  	cls_struct_align	a1,
    25  	cls_struct_align	a2)
    26  {
    27  	struct cls_struct_align r;
    28  
    29  	r.a = a1.a + a2.a;
    30  	r.b = a1.b + a2.b;
    31  	r.c = a1.c + a2.c;
    32  	r.d = a1.d + a2.d;
    33  	r.e = a1.e + a2.e;
    34  	r.f = a1.f + a2.f;
    35  	r.g = a1.g + a2.g;
    36  
    37  	printf("%Lg %Lg %Lg %Lg %Lg %g %Lg %Lg %Lg %Lg %Lg %Lg %g %Lg: "
    38  		"%Lg %Lg %Lg %Lg %Lg %g %Lg\n",
    39  		a1.a, a1.b, a1.c, a1.d, a1.e, a1.f, a1.g,
    40  		a2.a, a2.b, a2.c, a2.d, a2.e, a2.f, a2.g,
    41  		r.a, r.b, r.c, r.d, r.e, r.f, r.g);
    42  
    43  	return r;
    44  }
    45  
    46  static void
    47  cls_struct_align_gn(ffi_cif* cif __UNUSED__, void* resp, void** args, 
    48  		    void* userdata __UNUSED__)
    49  {
    50  	struct cls_struct_align a1, a2;
    51  
    52  	a1 = *(struct cls_struct_align*)(args[0]);
    53  	a2 = *(struct cls_struct_align*)(args[1]);
    54  
    55  	*(cls_struct_align*)resp = cls_struct_align_fn(a1, a2);
    56  }
    57  
    58  int main (void)
    59  {
    60  	ffi_cif cif;
    61          void *code;
    62  	ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
    63  	void* args_dbl[3];
    64  	ffi_type* cls_struct_fields[8];
    65  	ffi_type cls_struct_type;
    66  	ffi_type* dbl_arg_types[3];
    67  
    68  	struct cls_struct_align g_dbl = { 1, 2, 3, 4, 5, 6, 7 };
    69  	struct cls_struct_align f_dbl = { 8, 9, 10, 11, 12, 13, 14 };
    70  	struct cls_struct_align res_dbl;
    71  
    72  	cls_struct_type.size = 0;
    73  	cls_struct_type.alignment = 0;
    74  	cls_struct_type.type = FFI_TYPE_STRUCT;
    75  	cls_struct_type.elements = cls_struct_fields;
    76  
    77  	cls_struct_fields[0] = &ffi_type_longdouble;
    78  	cls_struct_fields[1] = &ffi_type_longdouble;
    79  	cls_struct_fields[2] = &ffi_type_longdouble;
    80  	cls_struct_fields[3] = &ffi_type_longdouble;
    81  	cls_struct_fields[4] = &ffi_type_longdouble;
    82  	cls_struct_fields[5] = &ffi_type_double;
    83  	cls_struct_fields[6] = &ffi_type_longdouble;
    84  	cls_struct_fields[7] = NULL;
    85  
    86  	dbl_arg_types[0] = &cls_struct_type;
    87  	dbl_arg_types[1] = &cls_struct_type;
    88  	dbl_arg_types[2] = NULL;
    89  
    90  	CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
    91  		dbl_arg_types) == FFI_OK);
    92  
    93  	args_dbl[0] = &g_dbl;
    94  	args_dbl[1] = &f_dbl;
    95  	args_dbl[2] = NULL;
    96  
    97  	ffi_call(&cif, FFI_FN(cls_struct_align_fn), &res_dbl, args_dbl);
    98  	/* { dg-output "1 2 3 4 5 6 7 8 9 10 11 12 13 14: 9 11 13 15 17 19 21" } */
    99  	printf("res: %Lg %Lg %Lg %Lg %Lg %g %Lg\n", res_dbl.a, res_dbl.b,
   100  		res_dbl.c, res_dbl.d, res_dbl.e, res_dbl.f, res_dbl.g);
   101  	/* { dg-output "\nres: 9 11 13 15 17 19 21" } */
   102  
   103  	CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_align_gn, NULL, code) == FFI_OK);
   104  
   105  	res_dbl = ((cls_struct_align(*)(cls_struct_align, cls_struct_align))(code))(g_dbl, f_dbl);
   106  	/* { dg-output "\n1 2 3 4 5 6 7 8 9 10 11 12 13 14: 9 11 13 15 17 19 21" } */
   107  	printf("res: %Lg %Lg %Lg %Lg %Lg %g %Lg\n", res_dbl.a, res_dbl.b,
   108  		res_dbl.c, res_dbl.d, res_dbl.e, res_dbl.f, res_dbl.g);
   109  	/* { dg-output "\nres: 9 11 13 15 17 19 21" } */
   110  
   111    exit(0);
   112  }
   113  
   114  
   115