Add test case transcribed from cpython

1 files changed, 63 insertions, 0 deletions

diff --git a/testsuite/libffi.call/struct_return_2H.c b/testsuite/libffi.call/struct_return_2H.c
new file mode 100644
index 0000000..2773550
--- /dev/null
+++ b/testsuite/libffi.call/struct_return_2H.c
@@ -0,0 +1,63 @@
+/* Area:	ffi_call
+   Purpose:	Check structures.
+   Limitations:	none.
+   PR:		none.
+   Originator:	From the original ffitest.c  */
+
+/* { dg-do run } */
+#include "ffitest.h"
+typedef struct
+{
+  short x;
+  short y;
+} test_structure_5;
+
+static test_structure_5 ABI_ATTR struct5(test_structure_5 inp)
+{
+  inp.x *= 2;
+  inp.y *= 3;
+
+  return inp;
+}
+
+int main (void)
+{
+  ffi_cif cif;
+  ffi_type *args[MAX_ARGS];
+  void *values[MAX_ARGS];
+  ffi_type ts5_type;
+  ffi_type *ts5_type_elements[3];
+
+  test_structure_5 ts5_arg1;
+
+  /* This is a hack to get a properly aligned result buffer */
+  test_structure_5 *ts5_result =
+    (test_structure_5 *) malloc (sizeof(test_structure_5));
+
+  ts5_type.size = 0;
+  ts5_type.alignment = 0;
+  ts5_type.type = FFI_TYPE_STRUCT;
+  ts5_type.elements = ts5_type_elements;
+  ts5_type_elements[0] = &ffi_type_sshort;
+  ts5_type_elements[1] = &ffi_type_sshort;
+  ts5_type_elements[2] = NULL;
+
+  args[0] = &ts5_type;
+  values[0] = &ts5_arg1;
+
+  /* Initialize the cif */
+  CHECK(ffi_prep_cif(&cif, ABI_NUM, 1, &ts5_type, args) == FFI_OK);
+
+  ts5_arg1.x = 99;
+  ts5_arg1.y = 88;
+
+  ffi_call (&cif, FFI_FN(struct5), ts5_result, values);
+
+  CHECK(ts5_result->x == 99*2);
+  CHECK(ts5_result->y == 88*3);
+  CHECK(ts5_arg1.x == 99);
+  CHECK(ts5_arg1.y == 88);
+
+  free (ts5_result);
+  exit(0);
+}