c3-lang/libffi/testsuite/libffi.call/cls_1_1byte.c

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• Hash : 0a1ab12a
  Author :
  Date : 2012-03-30T08:14:08
  

  Various MSVC-related changes.

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• testsuite/libffi.call/cls_1_1byte.c

• /* Area:	ffi_call, closure_call
     Purpose:	Check structure passing with different structure size.
  		Especially with small structures which may fit in one
  		register. Depending on the ABI.
     Limitations:	none.
     PR:		none.
     Originator:	<andreast@gcc.gnu.org> 20030902	 */
  
  
  
  /* { dg-do run } */
  #include "ffitest.h"
  
  typedef struct cls_struct_1_1byte {
    unsigned char a;
  } cls_struct_1_1byte;
  
  cls_struct_1_1byte cls_struct_1_1byte_fn(struct cls_struct_1_1byte a1,
  			    struct cls_struct_1_1byte a2)
  {
    struct cls_struct_1_1byte result;
  
    result.a = a1.a + a2.a;
  
    printf("%d %d: %d\n", a1.a, a2.a, result.a);
  
    return  result;
  }
  
  static void
  cls_struct_1_1byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
  		      void* userdata __UNUSED__)
  {
  
    struct cls_struct_1_1byte a1, a2;
  
    a1 = *(struct cls_struct_1_1byte*)(args[0]);
    a2 = *(struct cls_struct_1_1byte*)(args[1]);
  
    *(cls_struct_1_1byte*)resp = cls_struct_1_1byte_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[2];
    ffi_type cls_struct_type;
    ffi_type* dbl_arg_types[5];
  
    struct cls_struct_1_1byte g_dbl = { 12 };
    struct cls_struct_1_1byte f_dbl = { 178 };
    struct cls_struct_1_1byte 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] = 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_1_1byte_fn), &res_dbl, args_dbl);
    /* { dg-output "12 178: 190" } */
    printf("res: %d\n", res_dbl.a);
    /* { dg-output "\nres: 190" } */
  
    CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_1_1byte_gn, NULL, code) == FFI_OK);
  
    res_dbl = ((cls_struct_1_1byte(*)(cls_struct_1_1byte, cls_struct_1_1byte))(code))(g_dbl, f_dbl);
    /* { dg-output "\n12 178: 190" } */
    printf("res: %d\n", res_dbl.a);
    /* { dg-output "\nres: 190" } */
  
    exit(0);
  }
  

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