github.com/prattmic/llgo-embedded@v0.0.0-20150820070356-41cfecea0e1e/third_party/gofrontend/libffi/testsuite/libffi.call/stret_medium2.c (about)

     1  /* Area:		ffi_call, closure_call
     2     Purpose:		Check structure returning with different structure size.
     3  				Depending on the ABI. Check bigger struct which overlaps
     4  				the gp and fp register count on Darwin/AIX/ppc64.
     5     Limitations:	none.
     6     PR:			none.
     7     Originator:	Blake Chaffin	6/21/2007	*/
     8  
     9  /* { dg-do run { xfail strongarm*-*-* xscale*-*-*  } } */
    10  /* { dg-options "-Wno-format" { target alpha*-dec-osf* } } */
    11  #include "ffitest.h"
    12  
    13  typedef struct struct_72byte {
    14  	double a;
    15  	double b;
    16  	double c;
    17  	double d;
    18  	double e;
    19  	double f;
    20  	double g;
    21  	double h;
    22  	long long i;
    23  } struct_72byte;
    24  
    25  struct_72byte cls_struct_72byte_fn(
    26  	struct_72byte b0,
    27  	struct_72byte b1,
    28  	struct_72byte b2,
    29  	struct_72byte b3)
    30  {
    31  	struct_72byte	result;
    32  
    33  	result.a = b0.a + b1.a + b2.a + b3.a;
    34  	result.b = b0.b + b1.b + b2.b + b3.b;
    35  	result.c = b0.c + b1.c + b2.c + b3.c;
    36  	result.d = b0.d + b1.d + b2.d + b3.d;
    37  	result.e = b0.e + b1.e + b2.e + b3.e;
    38  	result.f = b0.f + b1.f + b2.f + b3.f;
    39  	result.g = b0.g + b1.g + b2.g + b3.g;
    40  	result.h = b0.h + b1.h + b2.h + b3.h;
    41  	result.i = b0.i + b1.i + b2.i + b3.i;
    42  
    43  	printf("%g %g %g %g %g %g %g %g %" PRIdLL "\n", result.a, result.b, result.c,
    44  		result.d, result.e, result.f, result.g, result.h, result.i);
    45  
    46  	return result;
    47  }
    48  
    49  static void
    50  cls_struct_72byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args, void* userdata __UNUSED__)
    51  {
    52  	struct_72byte	b0, b1, b2, b3;
    53  
    54  	b0 = *(struct_72byte*)(args[0]);
    55  	b1 = *(struct_72byte*)(args[1]);
    56  	b2 = *(struct_72byte*)(args[2]);
    57  	b3 = *(struct_72byte*)(args[3]);
    58  
    59  	*(struct_72byte*)resp = cls_struct_72byte_fn(b0, b1, b2, b3);
    60  }
    61  
    62  int main (void)
    63  {
    64  	ffi_cif cif;
    65          void *code;
    66  	ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
    67  	void* args_dbl[5];
    68  	ffi_type* cls_struct_fields[10];
    69  	ffi_type cls_struct_type;
    70  	ffi_type* dbl_arg_types[5];
    71  
    72  	struct_72byte e_dbl = { 9.0, 2.0, 6.0, 5.0, 3.0, 4.0, 8.0, 1.0, 7 };
    73  	struct_72byte f_dbl = { 1.0, 2.0, 3.0, 7.0, 2.0, 5.0, 6.0, 7.0, 4 };
    74  	struct_72byte g_dbl = { 4.0, 5.0, 7.0, 9.0, 1.0, 1.0, 2.0, 9.0, 3 };
    75  	struct_72byte h_dbl = { 8.0, 6.0, 1.0, 4.0, 0.0, 3.0, 3.0, 1.0, 2 };
    76  	struct_72byte res_dbl;
    77  
    78  	cls_struct_type.size = 0;
    79  	cls_struct_type.alignment = 0;
    80  	cls_struct_type.type = FFI_TYPE_STRUCT;
    81  	cls_struct_type.elements = cls_struct_fields;
    82  
    83  	cls_struct_fields[0] = &ffi_type_double;
    84  	cls_struct_fields[1] = &ffi_type_double;
    85  	cls_struct_fields[2] = &ffi_type_double;
    86  	cls_struct_fields[3] = &ffi_type_double;
    87  	cls_struct_fields[4] = &ffi_type_double;
    88  	cls_struct_fields[5] = &ffi_type_double;
    89  	cls_struct_fields[6] = &ffi_type_double;
    90  	cls_struct_fields[7] = &ffi_type_double;
    91  	cls_struct_fields[8] = &ffi_type_sint64;
    92  	cls_struct_fields[9] = NULL;
    93  
    94  	dbl_arg_types[0] = &cls_struct_type;
    95  	dbl_arg_types[1] = &cls_struct_type;
    96  	dbl_arg_types[2] = &cls_struct_type;
    97  	dbl_arg_types[3] = &cls_struct_type;
    98  	dbl_arg_types[4] = NULL;
    99  
   100  	CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 4, &cls_struct_type,
   101  		dbl_arg_types) == FFI_OK);
   102  
   103  	args_dbl[0] = &e_dbl;
   104  	args_dbl[1] = &f_dbl;
   105  	args_dbl[2] = &g_dbl;
   106  	args_dbl[3] = &h_dbl;
   107  	args_dbl[4] = NULL;
   108  
   109  	ffi_call(&cif, FFI_FN(cls_struct_72byte_fn), &res_dbl, args_dbl);
   110  	/* { dg-output "22 15 17 25 6 13 19 18 16" } */
   111  	printf("res: %g %g %g %g %g %g %g %g %" PRIdLL "\n", res_dbl.a, res_dbl.b, res_dbl.c,
   112  		res_dbl.d, res_dbl.e, res_dbl.f, res_dbl.g, res_dbl.h, res_dbl.i);
   113  	/* { dg-output "\nres: 22 15 17 25 6 13 19 18 16" } */
   114  
   115  	CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_72byte_gn, NULL, code) == FFI_OK);
   116  
   117  	res_dbl = ((struct_72byte(*)(struct_72byte, struct_72byte,
   118  		struct_72byte, struct_72byte))(code))(e_dbl, f_dbl, g_dbl, h_dbl);
   119  	/* { dg-output "\n22 15 17 25 6 13 19 18 16" } */
   120  	printf("res: %g %g %g %g %g %g %g %g %" PRIdLL "\n", res_dbl.a, res_dbl.b, res_dbl.c,
   121  		res_dbl.d, res_dbl.e, res_dbl.f, res_dbl.g, res_dbl.h, res_dbl.i);
   122  	/* { dg-output "\nres: 22 15 17 25 6 13 19 18 16" } */
   123  
   124  	exit(0);
   125  }