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jeremybenn |
/* Area: ffi_call, closure_call
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Purpose: Check structure passing with different structure size.
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Especially with small structures which may fit in one
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register. Depending on the ABI.
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Limitations: none.
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PR: none.
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Originator: <andreast@gcc.gnu.org> 20030902 */
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/* { dg-do run } */
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#include "ffitest.h"
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typedef struct cls_struct_3_1byte {
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unsigned char a;
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unsigned char b;
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unsigned char c;
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} cls_struct_3_1byte;
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cls_struct_3_1byte cls_struct_3_1byte_fn(struct cls_struct_3_1byte a1,
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struct cls_struct_3_1byte a2)
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{
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struct cls_struct_3_1byte result;
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result.a = a1.a + a2.a;
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result.b = a1.b + a2.b;
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result.c = a1.c + a2.c;
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printf("%d %d %d %d %d %d: %d %d %d\n", a1.a, a1.b, a1.c,
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a2.a, a2.b, a2.c,
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result.a, result.b, result.c);
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return result;
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}
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static void
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cls_struct_3_1byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
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void* userdata __UNUSED__)
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{
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struct cls_struct_3_1byte a1, a2;
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a1 = *(struct cls_struct_3_1byte*)(args[0]);
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a2 = *(struct cls_struct_3_1byte*)(args[1]);
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*(cls_struct_3_1byte*)resp = cls_struct_3_1byte_fn(a1, a2);
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}
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int main (void)
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{
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ffi_cif cif;
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void *code;
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ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
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void* args_dbl[5];
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ffi_type* cls_struct_fields[4];
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ffi_type cls_struct_type;
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ffi_type* dbl_arg_types[5];
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cls_struct_type.size = 0;
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cls_struct_type.alignment = 0;
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cls_struct_type.type = FFI_TYPE_STRUCT;
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cls_struct_type.elements = cls_struct_fields;
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struct cls_struct_3_1byte g_dbl = { 12, 13, 14 };
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struct cls_struct_3_1byte f_dbl = { 178, 179, 180 };
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struct cls_struct_3_1byte res_dbl;
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cls_struct_fields[0] = &ffi_type_uchar;
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cls_struct_fields[1] = &ffi_type_uchar;
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cls_struct_fields[2] = &ffi_type_uchar;
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cls_struct_fields[3] = NULL;
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dbl_arg_types[0] = &cls_struct_type;
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dbl_arg_types[1] = &cls_struct_type;
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dbl_arg_types[2] = NULL;
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CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
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dbl_arg_types) == FFI_OK);
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args_dbl[0] = &g_dbl;
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args_dbl[1] = &f_dbl;
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args_dbl[2] = NULL;
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ffi_call(&cif, FFI_FN(cls_struct_3_1byte_fn), &res_dbl, args_dbl);
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/* { dg-output "12 13 14 178 179 180: 190 192 194" } */
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printf("res: %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
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/* { dg-output "\nres: 190 192 194" } */
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CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_3_1byte_gn, NULL, code) == FFI_OK);
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res_dbl = ((cls_struct_3_1byte(*)(cls_struct_3_1byte, cls_struct_3_1byte))(code))(g_dbl, f_dbl);
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/* { dg-output "\n12 13 14 178 179 180: 190 192 194" } */
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printf("res: %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
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/* { dg-output "\nres: 190 192 194" } */
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exit(0);
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}
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