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/* Area:	ffi_call, closure_call 
   Purpose:	Check structure passing with different structure size. 
		Depending on the ABI. Check overlapping. 
   Limitations:>none. 
   PR:		none. 
   Originator:	<compnerd@compnerd.org> 20171026	 */ 
 
/* { dg-do run } */ 
 
#include "ffitest.h" 
 
typedef struct cls_struct_3float { 
  float f; 
  float g; 
  float h; 
} cls_struct_3float; 
 
cls_struct_3float cls_struct_3float_fn(struct cls_struct_3float a1, 
				       struct cls_struct_3float a2) 
{ 
  struct cls_struct_3float result; 
 
  result.f = a1.f + a2.f; 
  result.g = a1.g + a2.g; 
  result.h = a1.h + a2.h; 
 
  printf("%g %g %g %g %g %g: %g %g %g\n", a1.f, a1.g, a1.h, 
	 a2.f, a2.g, a2.h, result.f, result.g, result.h); 
 
  return result; 
} 
 
static void 
cls_struct_3float_gn(ffi_cif *cif __UNUSED__, void* resp, void **args, 
		     void* userdata __UNUSED__) 
{ 
  struct cls_struct_3float a1, a2; 
 
  a1 = *(struct cls_struct_3float*)(args[0]); 
  a2 = *(struct cls_struct_3float*)(args[1]); 
 
  *(cls_struct_3float*)resp = cls_struct_3float_fn(a1, a2); 
} 
 
int main (void) 
{ 
  ffi_cif cif; 
  void *code; 
  ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code); 
  void *args_dbl[3]; 
  ffi_type* cls_struct_fields[4]; 
  ffi_type cls_struct_type; 
  ffi_type* dbl_arg_types[3]; 
 
  struct cls_struct_3float g_dbl = { 1.0f, 2.0f, 3.0f }; 
  struct cls_struct_3float f_dbl = { 1.0f, 2.0f, 3.0f }; 
  struct cls_struct_3float res_dbl; 
 
  cls_struct_fields[0] = &ffi_type_float; 
  cls_struct_fields[1] = &ffi_type_float; 
  cls_struct_fields[2] = &ffi_type_float; 
  cls_struct_fields[3] = NULL; 
 
  cls_struct_type.size = 0; 
  cls_struct_type.alignment = 0; 
  cls_struct_type.type = FFI_TYPE_STRUCT; 
  cls_struct_type.elements = cls_struct_fields; 
 
  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_3float_fn), &res_dbl, args_dbl); 
  /* { dg-output "1 2 3 1 2 3: 2 4 6" } */ 
  printf("res: %g %g %g\n", res_dbl.f, res_dbl.g, res_dbl.h); 
  /* { dg-output "\nres: 2 4 6" } */ 
 
  CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_3float_gn, NULL, code) == 
	FFI_OK); 
 
  res_dbl = ((cls_struct_3float(*)(cls_struct_3float, 
				   cls_struct_3float))(code))(g_dbl, f_dbl); 
  /* { dg-output "\n1 2 3 1 2 3: 2 4 6" } */ 
  printf("res: %g %g %g\n", res_dbl.f, res_dbl.g, res_dbl.h); 
  /* { dg-output "\nres: 2 4 6" } */ 
 
  exit(0); 
}