1 files changed, 133 insertions, 0 deletions
diff --git a/testsuite/libffi.call/nested_struct10.c b/testsuite/libffi.call/nested_struct10.c
new file mode 100644
index 0000000..d6a718b
--- /dev/null
+++ b/testsuite/libffi.call/nested_struct10.c
@@ -0,0 +1,133 @@
+/* Area:	ffi_call, closure_call
+   Purpose:	Check structure passing with different structure size.
+		Contains structs as parameter of the struct itself.
+		Sample taken from Alan Modras patch to src/prep_cif.c.
+   Limitations:	none.
+   PR:		none.
+   Originator:	<andreast@gcc.gnu.org> 20051010	 */
+
+/* { dg-do run } */
+#include "ffitest.h"
+
+typedef struct A {
+  unsigned long long a;
+  unsigned char b;
+} A;
+
+typedef struct B {
+  unsigned char y;
+  struct A x;
+  unsigned int z;
+} B;
+
+typedef struct C {
+  unsigned long long d;
+  unsigned char e;
+} C;
+
+static B B_fn(struct A b2, struct B b3, struct C b4)
+{
+  struct B result;
+
+  result.x.a = b2.a + b3.x.a + b3.z + b4.d;
+  result.x.b = b2.b + b3.x.b + b3.y + b4.e;
+  result.y = b2.b + b3.x.b + b4.e;
+
+  printf("%d %d %d %d %d %d %d %d: %d %d %d\n", (int)b2.a, b2.b,
+	 (int)b3.x.a, b3.x.b, b3.y, b3.z, (int)b4.d, b4.e,
+	 (int)result.x.a, result.x.b, result.y);
+
+  return result;
+}
+
+static void
+B_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
+     void* userdata __UNUSED__)
+{
+  struct A b0;
+  struct B b1;
+  struct C b2;
+
+  b0 = *(struct A*)(args[0]);
+  b1 = *(struct B*)(args[1]);
+  b2 = *(struct C*)(args[2]);
+
+  *(B*)resp = B_fn(b0, b1, b2);
+}
+
+int main (void)
+{
+  ffi_cif cif;
+  void *code;
+  ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
+  void* args_dbl[4];
+  ffi_type* cls_struct_fields[3];
+  ffi_type* cls_struct_fields1[4];
+  ffi_type* cls_struct_fields2[3];
+  ffi_type cls_struct_type, cls_struct_type1, cls_struct_type2;
+  ffi_type* dbl_arg_types[4];
+
+  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_type1.size = 0;
+  cls_struct_type1.alignment = 0;
+  cls_struct_type1.type = FFI_TYPE_STRUCT;
+  cls_struct_type1.elements = cls_struct_fields1;
+
+  cls_struct_type2.size = 0;
+  cls_struct_type2.alignment = 0;
+  cls_struct_type2.type = FFI_TYPE_STRUCT;
+  cls_struct_type2.elements = cls_struct_fields2;
+
+  struct A e_dbl = { 1LL, 7};
+  struct B f_dbl = { 99, {12LL , 127}, 255};
+  struct C g_dbl = { 2LL, 9};
+
+  struct B res_dbl;
+
+  cls_struct_fields[0] = &ffi_type_uint64;
+  cls_struct_fields[1] = &ffi_type_uchar;
+  cls_struct_fields[2] = NULL;
+
+  cls_struct_fields1[0] = &ffi_type_uchar;
+  cls_struct_fields1[1] = &cls_struct_type;
+  cls_struct_fields1[2] = &ffi_type_uint;
+  cls_struct_fields1[3] = NULL;
+
+  cls_struct_fields2[0] = &ffi_type_uint64;
+  cls_struct_fields2[1] = &ffi_type_uchar;
+  cls_struct_fields2[2] = NULL;
+
+
+  dbl_arg_types[0] = &cls_struct_type;
+  dbl_arg_types[1] = &cls_struct_type1;
+  dbl_arg_types[2] = &cls_struct_type2;
+  dbl_arg_types[3] = NULL;
+
+  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 3, &cls_struct_type1,
+		     dbl_arg_types) == FFI_OK);
+
+  args_dbl[0] = &e_dbl;
+  args_dbl[1] = &f_dbl;
+  args_dbl[2] = &g_dbl;
+  args_dbl[3] = NULL;
+
+  ffi_call(&cif, FFI_FN(B_fn), &res_dbl, args_dbl);
+  /* { dg-output "1 7 12 127 99 255 2 9: 270 242 143" } */
+  CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a + f_dbl.z + g_dbl.d));
+  CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y + g_dbl.e));
+  CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b + g_dbl.e));
+
+  CHECK(ffi_prep_closure_loc(pcl, &cif, B_gn, NULL, code) == FFI_OK);
+
+  res_dbl = ((B(*)(A, B, C))(code))(e_dbl, f_dbl, g_dbl);
+  /* { dg-output "\n1 7 12 127 99 255 2 9: 270 242 143" } */
+  CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a + f_dbl.z + g_dbl.d));
+  CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y + g_dbl.e));
+  CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b + g_dbl.e));
+
+  exit(0);
+}