/js/src/ctypes/libffi/testsuite/libffi.call/cls_3byte2.c

http://github.com/zpao/v8monkey · C · 90 lines · 57 code · 21 blank · 12 comment · 2 complexity · 7b6ea9d793922ccb7b10c8facc257df2 MD5 · raw file

  1. /* Area: ffi_call, closure_call
  2. Purpose: Check structure passing with different structure size.
  3. Especially with small structures which may fit in one
  4. register. Depending on the ABI. Check overlapping.
  5. Limitations: none.
  6. PR: none.
  7. Originator: <andreast@gcc.gnu.org> 20030828 */
  8. /* { dg-do run } */
  9. #include "ffitest.h"
  10. typedef struct cls_struct_3byte_1 {
  11. unsigned char a;
  12. unsigned short b;
  13. } cls_struct_3byte_1;
  14. cls_struct_3byte_1 cls_struct_3byte_fn1(struct cls_struct_3byte_1 a1,
  15. struct cls_struct_3byte_1 a2)
  16. {
  17. struct cls_struct_3byte_1 result;
  18. result.a = a1.a + a2.a;
  19. result.b = a1.b + a2.b;
  20. printf("%d %d %d %d: %d %d\n", a1.a, a1.b, a2.a, a2.b, result.a, result.b);
  21. return result;
  22. }
  23. static void
  24. cls_struct_3byte_gn1(ffi_cif* cif __UNUSED__, void* resp, void** args,
  25. void* userdata __UNUSED__)
  26. {
  27. struct cls_struct_3byte_1 a1, a2;
  28. a1 = *(struct cls_struct_3byte_1*)(args[0]);
  29. a2 = *(struct cls_struct_3byte_1*)(args[1]);
  30. *(cls_struct_3byte_1*)resp = cls_struct_3byte_fn1(a1, a2);
  31. }
  32. int main (void)
  33. {
  34. ffi_cif cif;
  35. void *code;
  36. ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
  37. void* args_dbl[5];
  38. ffi_type* cls_struct_fields[4];
  39. ffi_type cls_struct_type;
  40. ffi_type* dbl_arg_types[5];
  41. cls_struct_type.size = 0;
  42. cls_struct_type.alignment = 0;
  43. cls_struct_type.type = FFI_TYPE_STRUCT;
  44. cls_struct_type.elements = cls_struct_fields;
  45. struct cls_struct_3byte_1 g_dbl = { 15, 125 };
  46. struct cls_struct_3byte_1 f_dbl = { 9, 19 };
  47. struct cls_struct_3byte_1 res_dbl;
  48. cls_struct_fields[0] = &ffi_type_uchar;
  49. cls_struct_fields[1] = &ffi_type_ushort;
  50. cls_struct_fields[2] = NULL;
  51. dbl_arg_types[0] = &cls_struct_type;
  52. dbl_arg_types[1] = &cls_struct_type;
  53. dbl_arg_types[2] = NULL;
  54. CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
  55. dbl_arg_types) == FFI_OK);
  56. args_dbl[0] = &g_dbl;
  57. args_dbl[1] = &f_dbl;
  58. args_dbl[2] = NULL;
  59. ffi_call(&cif, FFI_FN(cls_struct_3byte_fn1), &res_dbl, args_dbl);
  60. /* { dg-output "15 125 9 19: 24 144" } */
  61. printf("res: %d %d\n", res_dbl.a, res_dbl.b);
  62. /* { dg-output "\nres: 24 144" } */
  63. CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_3byte_gn1, NULL, code) == FFI_OK);
  64. res_dbl = ((cls_struct_3byte_1(*)(cls_struct_3byte_1, cls_struct_3byte_1))(code))(g_dbl, f_dbl);
  65. /* { dg-output "\n15 125 9 19: 24 144" } */
  66. printf("res: %d %d\n", res_dbl.a, res_dbl.b);
  67. /* { dg-output "\nres: 24 144" } */
  68. exit(0);
  69. }