1 files changed, 98 insertions, 0 deletions
diff --git a/testsuite/libffi.call/cls_4_1byte.c b/testsuite/libffi.call/cls_4_1byte.c
new file mode 100644
index 0000000..f3806d7
--- /dev/null
+++ b/testsuite/libffi.call/cls_4_1byte.c
@@ -0,0 +1,98 @@
+/* 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_4_1byte {
+  unsigned char a;
+  unsigned char b;
+  unsigned char c;
+  unsigned char d;
+} cls_struct_4_1byte;
+
+cls_struct_4_1byte cls_struct_4_1byte_fn(struct cls_struct_4_1byte a1,
+			    struct cls_struct_4_1byte a2)
+{
+  struct cls_struct_4_1byte result;
+
+  result.a = a1.a + a2.a;
+  result.b = a1.b + a2.b;
+  result.c = a1.c + a2.c;
+  result.d = a1.d + a2.d;
+
+  printf("%d %d %d %d %d %d %d %d: %d %d %d %d\n", a1.a, a1.b, a1.c, a1.d,
+	 a2.a, a2.b, a2.c, a2.d,
+	 result.a, result.b, result.c, result.d);
+
+  return  result;
+}
+
+static void
+cls_struct_4_1byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
+		      void* userdata __UNUSED__)
+{
+
+  struct cls_struct_4_1byte a1, a2;
+
+  a1 = *(struct cls_struct_4_1byte*)(args[0]);
+  a2 = *(struct cls_struct_4_1byte*)(args[1]);
+
+  *(cls_struct_4_1byte*)resp = cls_struct_4_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[5];
+  ffi_type cls_struct_type;
+  ffi_type* dbl_arg_types[5];
+
+  cls_struct_type.size = 0;
+  cls_struct_type.alignment = 0;
+  cls_struct_type.type = FFI_TYPE_STRUCT;
+  cls_struct_type.elements = cls_struct_fields;
+
+  struct cls_struct_4_1byte g_dbl = { 12, 13, 14, 15 };
+  struct cls_struct_4_1byte f_dbl = { 178, 179, 180, 181 };
+  struct cls_struct_4_1byte res_dbl;
+
+  cls_struct_fields[0] = &ffi_type_uchar;
+  cls_struct_fields[1] = &ffi_type_uchar;
+  cls_struct_fields[2] = &ffi_type_uchar;
+  cls_struct_fields[3] = &ffi_type_uchar;
+  cls_struct_fields[4] = 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_4_1byte_fn), &res_dbl, args_dbl);
+  /* { dg-output "12 13 14 15 178 179 180 181: 190 192 194 196" } */
+  printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
+  /* { dg-output "\nres: 190 192 194 196" } */
+
+  CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_4_1byte_gn, NULL, code) == FFI_OK);
+
+  res_dbl = ((cls_struct_4_1byte(*)(cls_struct_4_1byte, cls_struct_4_1byte))(code))(g_dbl, f_dbl);
+  /* { dg-output "\n12 13 14 15 178 179 180 181: 190 192 194 196" } */
+  printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
+  /* { dg-output "\nres: 190 192 194 196" } */
+
+  exit(0);
+}